./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-recursive-malloc/rec_strcopy_malloc2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/rec_strcopy_malloc2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4e9a16750b1d24e07696c6ab53b9e97b0ee6fcf6dce752052f3cbc796bfbdcce --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:02:25,769 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:02:25,771 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:02:25,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:02:25,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:02:25,816 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:02:25,818 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:02:25,820 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:02:25,823 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:02:25,824 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:02:25,825 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:02:25,827 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:02:25,828 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:02:25,829 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:02:25,831 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:02:25,833 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:02:25,834 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:02:25,835 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:02:25,838 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:02:25,841 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:02:25,843 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:02:25,851 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:02:25,854 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:02:25,856 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:02:25,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:02:25,864 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:02:25,867 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:02:25,868 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:02:25,870 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:02:25,871 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:02:25,872 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:02:25,874 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:02:25,875 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:02:25,876 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:02:25,878 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:02:25,879 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:02:25,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:02:25,881 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:02:25,881 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:02:25,882 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:02:25,883 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:02:25,884 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-20 07:02:25,925 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:02:25,931 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:02:25,932 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:02:25,932 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:02:25,933 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:02:25,934 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:02:25,934 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:02:25,934 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-20 07:02:25,935 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-20 07:02:25,935 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-20 07:02:25,936 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-20 07:02:25,936 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-20 07:02:25,936 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-20 07:02:25,937 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:02:25,937 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 07:02:25,937 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:02:25,937 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:02:25,937 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-20 07:02:25,938 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-20 07:02:25,938 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-20 07:02:25,938 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:02:25,938 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-20 07:02:25,939 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:02:25,939 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-20 07:02:25,939 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:02:25,939 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:02:25,941 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:02:25,941 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:02:25,942 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:02:25,943 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-20 07:02:25,943 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_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e9a16750b1d24e07696c6ab53b9e97b0ee6fcf6dce752052f3cbc796bfbdcce [2021-11-20 07:02:26,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:02:26,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:02:26,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:02:26,213 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:02:26,214 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:02:26,215 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/termination-recursive-malloc/rec_strcopy_malloc2.i [2021-11-20 07:02:26,278 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/data/96dcbaff2/ce272c25d0c14e7ba829545d573fbfb6/FLAG783348f28 [2021-11-20 07:02:26,734 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:02:26,735 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/sv-benchmarks/c/termination-recursive-malloc/rec_strcopy_malloc2.i [2021-11-20 07:02:26,744 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/data/96dcbaff2/ce272c25d0c14e7ba829545d573fbfb6/FLAG783348f28 [2021-11-20 07:02:27,118 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/data/96dcbaff2/ce272c25d0c14e7ba829545d573fbfb6 [2021-11-20 07:02:27,121 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:02:27,122 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:02:27,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:02:27,124 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:02:27,127 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:02:27,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:02:27" (1/1) ... [2021-11-20 07:02:27,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@334706dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:02:27, skipping insertion in model container [2021-11-20 07:02:27,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:02:27" (1/1) ... [2021-11-20 07:02:27,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:02:27,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:02:27,338 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:02:27,360 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:02:27,373 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:02:27,388 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:02:27,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:02:27 WrapperNode [2021-11-20 07:02:27,389 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:02:27,391 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:02:27,392 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:02:27,392 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:02:27,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:02:27" (1/1) ... [2021-11-20 07:02:27,414 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:02:27" (1/1) ... [2021-11-20 07:02:27,447 INFO L137 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 34 [2021-11-20 07:02:27,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:02:27,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:02:27,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:02:27,450 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:02:27,461 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:02:27" (1/1) ... [2021-11-20 07:02:27,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:02:27" (1/1) ... [2021-11-20 07:02:27,476 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:02:27" (1/1) ... [2021-11-20 07:02:27,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:02:27" (1/1) ... [2021-11-20 07:02:27,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:02:27" (1/1) ... [2021-11-20 07:02:27,490 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:02:27" (1/1) ... [2021-11-20 07:02:27,495 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:02:27" (1/1) ... [2021-11-20 07:02:27,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:02:27,503 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:02:27,505 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:02:27,505 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:02:27,506 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:02:27" (1/1) ... [2021-11-20 07:02:27,514 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:02:27,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:02:27,544 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:02:27,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-20 07:02:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure rec_strcopy_helper [2021-11-20 07:02:27,596 INFO L138 BoogieDeclarations]: Found implementation of procedure rec_strcopy_helper [2021-11-20 07:02:27,596 INFO L130 BoogieDeclarations]: Found specification of procedure rec_cstrlen [2021-11-20 07:02:27,598 INFO L138 BoogieDeclarations]: Found implementation of procedure rec_cstrlen [2021-11-20 07:02:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 07:02:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 07:02:27,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:02:27,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:02:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 07:02:27,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 07:02:27,666 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:02:27,667 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:02:27,809 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:02:27,815 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:02:27,816 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 07:02:27,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:02:27 BoogieIcfgContainer [2021-11-20 07:02:27,818 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:02:27,819 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-20 07:02:27,819 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-20 07:02:27,828 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-20 07:02:27,828 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:02:27,829 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 07:02:27" (1/3) ... [2021-11-20 07:02:27,838 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@694f7785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:02:27, skipping insertion in model container [2021-11-20 07:02:27,838 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:02:27,838 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:02:27" (2/3) ... [2021-11-20 07:02:27,839 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@694f7785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:02:27, skipping insertion in model container [2021-11-20 07:02:27,839 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:02:27,839 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:02:27" (3/3) ... [2021-11-20 07:02:27,840 INFO L388 chiAutomizerObserver]: Analyzing ICFG rec_strcopy_malloc2.i [2021-11-20 07:02:27,925 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-20 07:02:27,925 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-20 07:02:27,926 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-20 07:02:27,926 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-20 07:02:27,926 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-20 07:02:27,926 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-20 07:02:27,926 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-20 07:02:27,926 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-20 07:02:27,940 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-20 07:02:27,962 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-11-20 07:02:27,963 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:02:27,963 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:02:27,970 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-20 07:02:27,970 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 07:02:27,970 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-20 07:02:27,971 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-20 07:02:27,974 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-11-20 07:02:27,974 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:02:27,974 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:02:27,974 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-20 07:02:27,975 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 07:02:27,981 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_#t~ret10#1.base, main_#t~ret10#1.offset, main_~length~1#1, main_~original~0#1.base, main_~original~0#1.offset, main_~res~0#1.base, main_~res~0#1.offset;main_~length~1#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 6#L43true assume main_~length~1#1 < 1;main_~length~1#1 := 1; 7#L43-2true assume { :begin_inline_build_nondet_String } true;build_nondet_String_#in~length#1 := main_~length~1#1;havoc build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;havoc build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset, build_nondet_String_~length#1, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset;build_nondet_String_~length#1 := build_nondet_String_#in~length#1;call build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length#1);build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset := build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;havoc build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;call write~int(0, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset + (build_nondet_String_~length#1 - 1), 1);build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset := build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset; 25#L12true main_#t~ret9#1.base, main_#t~ret9#1.offset := build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;assume { :end_inline_build_nondet_String } true;main_~original~0#1.base, main_~original~0#1.offset := main_#t~ret9#1.base, main_#t~ret9#1.offset;havoc main_#t~ret9#1.base, main_#t~ret9#1.offset;assume { :begin_inline_rec_strcopy } true;rec_strcopy_#in~source#1.base, rec_strcopy_#in~source#1.offset := main_~original~0#1.base, main_~original~0#1.offset;havoc rec_strcopy_#res#1.base, rec_strcopy_#res#1.offset;havoc rec_strcopy_#t~ret6#1, rec_strcopy_#t~malloc7#1.base, rec_strcopy_#t~malloc7#1.offset, rec_strcopy_~source#1.base, rec_strcopy_~source#1.offset, rec_strcopy_~length~0#1, rec_strcopy_~copyAlloc~0#1.base, rec_strcopy_~copyAlloc~0#1.offset;rec_strcopy_~source#1.base, rec_strcopy_~source#1.offset := rec_strcopy_#in~source#1.base, rec_strcopy_#in~source#1.offset; 18#L34true call rec_strcopy_#t~ret6#1 := rec_cstrlen(rec_strcopy_~source#1.base, rec_strcopy_~source#1.offset);< 13#rec_cstrlenENTRYtrue [2021-11-20 07:02:27,982 INFO L793 eck$LassoCheckResult]: Loop: 13#rec_cstrlenENTRYtrue ~s.base, ~s.offset := #in~s.base, #in~s.offset;call #t~mem2 := read~int(~s.base, ~s.offset, 1); 3#L17true assume !(0 == #t~mem2);havoc #t~mem2; 8#L20true call #t~ret3 := rec_cstrlen(~s.base, 1 + ~s.offset);< 13#rec_cstrlenENTRYtrue [2021-11-20 07:02:27,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:02:27,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1155759803, now seen corresponding path program 1 times [2021-11-20 07:02:28,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:02:28,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56827278] [2021-11-20 07:02:28,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:02:28,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:02:28,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:02:28,102 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:02:28,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:02:28,144 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:02:28,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:02:28,148 INFO L85 PathProgramCache]: Analyzing trace with hash 59719, now seen corresponding path program 1 times [2021-11-20 07:02:28,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:02:28,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137052289] [2021-11-20 07:02:28,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:02:28,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:02:28,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:02:28,159 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:02:28,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:02:28,169 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:02:28,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:02:28,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1512490931, now seen corresponding path program 1 times [2021-11-20 07:02:28,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:02:28,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148981005] [2021-11-20 07:02:28,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:02:28,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:02:28,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:28,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:02:28,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:02:28,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148981005] [2021-11-20 07:02:28,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148981005] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:02:28,380 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:02:28,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 07:02:28,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732865418] [2021-11-20 07:02:28,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:02:28,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:02:28,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 07:02:28,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 07:02:28,656 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 7 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:02:28,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:02:28,802 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2021-11-20 07:02:28,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:02:28,815 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 42 transitions. [2021-11-20 07:02:28,827 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-11-20 07:02:28,834 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 26 states and 29 transitions. [2021-11-20 07:02:28,835 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2021-11-20 07:02:28,836 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2021-11-20 07:02:28,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 29 transitions. [2021-11-20 07:02:28,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:02:28,841 INFO L681 BuchiCegarLoop]: Abstraction has 26 states and 29 transitions. [2021-11-20 07:02:28,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 29 transitions. [2021-11-20 07:02:28,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2021-11-20 07:02:28,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 07:02:28,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2021-11-20 07:02:28,876 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 27 transitions. [2021-11-20 07:02:28,877 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 27 transitions. [2021-11-20 07:02:28,877 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-20 07:02:28,877 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 27 transitions. [2021-11-20 07:02:28,880 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-11-20 07:02:28,880 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:02:28,881 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:02:28,882 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-20 07:02:28,882 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 07:02:28,885 INFO L791 eck$LassoCheckResult]: Stem: 86#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 87#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_#t~ret10#1.base, main_#t~ret10#1.offset, main_~length~1#1, main_~original~0#1.base, main_~original~0#1.offset, main_~res~0#1.base, main_~res~0#1.offset;main_~length~1#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 88#L43 assume !(main_~length~1#1 < 1); 89#L43-2 assume { :begin_inline_build_nondet_String } true;build_nondet_String_#in~length#1 := main_~length~1#1;havoc build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;havoc build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset, build_nondet_String_~length#1, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset;build_nondet_String_~length#1 := build_nondet_String_#in~length#1;call build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length#1);build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset := build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;havoc build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;call write~int(0, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset + (build_nondet_String_~length#1 - 1), 1);build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset := build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset; 91#L12 main_#t~ret9#1.base, main_#t~ret9#1.offset := build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;assume { :end_inline_build_nondet_String } true;main_~original~0#1.base, main_~original~0#1.offset := main_#t~ret9#1.base, main_#t~ret9#1.offset;havoc main_#t~ret9#1.base, main_#t~ret9#1.offset;assume { :begin_inline_rec_strcopy } true;rec_strcopy_#in~source#1.base, rec_strcopy_#in~source#1.offset := main_~original~0#1.base, main_~original~0#1.offset;havoc rec_strcopy_#res#1.base, rec_strcopy_#res#1.offset;havoc rec_strcopy_#t~ret6#1, rec_strcopy_#t~malloc7#1.base, rec_strcopy_#t~malloc7#1.offset, rec_strcopy_~source#1.base, rec_strcopy_~source#1.offset, rec_strcopy_~length~0#1, rec_strcopy_~copyAlloc~0#1.base, rec_strcopy_~copyAlloc~0#1.offset;rec_strcopy_~source#1.base, rec_strcopy_~source#1.offset := rec_strcopy_#in~source#1.base, rec_strcopy_#in~source#1.offset; 93#L34 call rec_strcopy_#t~ret6#1 := rec_cstrlen(rec_strcopy_~source#1.base, rec_strcopy_~source#1.offset);< 94#rec_cstrlenENTRY [2021-11-20 07:02:28,886 INFO L793 eck$LassoCheckResult]: Loop: 94#rec_cstrlenENTRY ~s.base, ~s.offset := #in~s.base, #in~s.offset;call #t~mem2 := read~int(~s.base, ~s.offset, 1); 105#L17 assume !(0 == #t~mem2);havoc #t~mem2; 92#L20 call #t~ret3 := rec_cstrlen(~s.base, 1 + ~s.offset);< 94#rec_cstrlenENTRY [2021-11-20 07:02:28,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:02:28,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1155819385, now seen corresponding path program 1 times [2021-11-20 07:02:28,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:02:28,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031925065] [2021-11-20 07:02:28,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:02:28,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:02:28,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:02:28,913 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:02:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:02:28,929 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:02:28,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:02:28,930 INFO L85 PathProgramCache]: Analyzing trace with hash 59719, now seen corresponding path program 2 times [2021-11-20 07:02:28,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:02:28,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759602982] [2021-11-20 07:02:28,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:02:28,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:02:28,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:02:28,938 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:02:28,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:02:28,946 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:02:28,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:02:28,947 INFO L85 PathProgramCache]: Analyzing trace with hash 262516431, now seen corresponding path program 1 times [2021-11-20 07:02:28,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:02:28,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537664400] [2021-11-20 07:02:28,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:02:28,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:02:28,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:02:28,966 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:02:28,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:02:29,010 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:02:29,729 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:02:29,730 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:02:29,730 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:02:29,730 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:02:29,730 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 07:02:29,731 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:02:29,731 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:02:29,731 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:02:29,731 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_strcopy_malloc2.i_Iteration2_Lasso [2021-11-20 07:02:29,732 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:02:29,732 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:02:29,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,760 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,764 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,784 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,786 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,791 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,797 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,857 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,871 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,877 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,884 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,902 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,904 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,916 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:29,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:30,177 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:02:30,182 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 07:02:30,185 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:02:30,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:02:30,191 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:02:30,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-20 07:02:30,198 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:02:30,208 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:02:30,208 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:02:30,209 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:02:30,209 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:02:30,209 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:02:30,211 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:02:30,212 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:02:30,224 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:02:30,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-11-20 07:02:30,260 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:02:30,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:02:30,261 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:02:30,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-20 07:02:30,268 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:02:30,276 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:02:30,276 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:02:30,276 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:02:30,276 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:02:30,276 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:02:30,277 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:02:30,277 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:02:30,298 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:02:30,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-20 07:02:30,336 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:02:30,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:02:30,337 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:02:30,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-20 07:02:30,342 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:02:30,351 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:02:30,351 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:02:30,352 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:02:30,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:02:30,352 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:02:30,353 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:02:30,353 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:02:30,370 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:02:30,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-20 07:02:30,406 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:02:30,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:02:30,407 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:02:30,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-20 07:02:30,414 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:02:30,423 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:02:30,424 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:02:30,424 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:02:30,424 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:02:30,424 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:02:30,426 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:02:30,426 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:02:30,456 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:02:30,481 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-11-20 07:02:30,481 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:02:30,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:02:30,483 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:02:30,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-20 07:02:30,487 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:02:30,495 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:02:30,496 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:02:30,496 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:02:30,496 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:02:30,496 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:02:30,496 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:02:30,496 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:02:30,497 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:02:30,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-20 07:02:30,521 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:02:30,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:02:30,522 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:02:30,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-20 07:02:30,523 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:02:30,530 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:02:30,530 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:02:30,531 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:02:30,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:02:30,531 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:02:30,531 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:02:30,532 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:02:30,553 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:02:30,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-20 07:02:30,574 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:02:30,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:02:30,575 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:02:30,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-20 07:02:30,577 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 [2021-11-20 07:02:30,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:02:30,584 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:02:30,585 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:02:30,585 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:02:30,585 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:02:30,585 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:02:30,585 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:02:30,587 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:02:30,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-20 07:02:30,607 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:02:30,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:02:30,608 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:02:30,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-20 07:02:30,612 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:02:30,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:02:30,620 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:02:30,620 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:02:30,620 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:02:30,620 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:02:30,621 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:02:30,621 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:02:30,623 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:02:30,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-20 07:02:30,646 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:02:30,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:02:30,647 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:02:30,651 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:02:30,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-20 07:02:30,658 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:02:30,659 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:02:30,659 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:02:30,659 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:02:30,662 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 07:02:30,662 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 07:02:30,694 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:02:30,731 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-11-20 07:02:30,731 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:02:30,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:02:30,733 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:02:30,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-20 07:02:30,742 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:02:30,749 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:02:30,749 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:02:30,749 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:02:30,749 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:02:30,749 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:02:30,750 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:02:30,750 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:02:30,758 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:02:30,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-20 07:02:30,778 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:02:30,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:02:30,779 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:02:30,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-20 07:02:30,780 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:02:30,787 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:02:30,788 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:02:30,788 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:02:30,788 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:02:30,788 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:02:30,794 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:02:30,794 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:02:30,795 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:02:30,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-20 07:02:30,815 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:02:30,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:02:30,816 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:02:30,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-20 07:02:30,817 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:02:30,824 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:02:30,824 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:02:30,825 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:02:30,825 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:02:30,825 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:02:30,825 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:02:30,825 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:02:30,836 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:02:30,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-20 07:02:30,856 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:02:30,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:02:30,857 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:02:30,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-20 07:02:30,861 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:02:30,868 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:02:30,868 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:02:30,868 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:02:30,868 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:02:30,868 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:02:30,869 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:02:30,869 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:02:30,878 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:02:30,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-20 07:02:30,897 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:02:30,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:02:30,901 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:02:30,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-20 07:02:30,905 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:02:30,912 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:02:30,912 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:02:30,913 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:02:30,913 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:02:30,913 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:02:30,913 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:02:30,913 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:02:30,914 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:02:30,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-20 07:02:30,934 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:02:30,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:02:30,935 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:02:30,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-20 07:02:30,937 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:02:30,944 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:02:30,944 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:02:30,945 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:02:30,945 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:02:30,945 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:02:30,945 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:02:30,945 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:02:30,946 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:02:30,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-11-20 07:02:30,966 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:02:30,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:02:30,967 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:02:30,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-20 07:02:30,974 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:02:30,981 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:02:30,981 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:02:30,981 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:02:30,981 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-11-20 07:02:30,981 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:02:30,982 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-20 07:02:30,982 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:02:30,996 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:02:31,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-20 07:02:31,020 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:02:31,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:02:31,021 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:02:31,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-11-20 07:02:31,022 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:02:31,030 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:02:31,030 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:02:31,030 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:02:31,030 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:02:31,036 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 07:02:31,036 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 07:02:31,057 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 07:02:31,087 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-11-20 07:02:31,087 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 5 variables to zero. [2021-11-20 07:02:31,089 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:02:31,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:02:31,098 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:02:31,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-20 07:02:31,165 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 07:02:31,211 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-20 07:02:31,211 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 07:02:31,212 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(rec_cstrlen_#in~s.offset, v_rep(select #length rec_cstrlen_#in~s.base)_1) = -1*rec_cstrlen_#in~s.offset + 1*v_rep(select #length rec_cstrlen_#in~s.base)_1 Supporting invariants [] [2021-11-20 07:02:31,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-11-20 07:02:31,246 INFO L297 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2021-11-20 07:02:31,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:02:31,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:31,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 07:02:31,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:02:31,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:31,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-20 07:02:31,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:02:31,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:02:31,409 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 [2021-11-20 07:02:31,409 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 27 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:02:31,474 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 27 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 42 states and 48 transitions. Complement of second has 8 states. [2021-11-20 07:02:31,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-20 07:02:31,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:02:31,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2021-11-20 07:02:31,478 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2021-11-20 07:02:31,480 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:02:31,480 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 9 letters. Loop has 3 letters. [2021-11-20 07:02:31,481 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:02:31,481 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 6 letters. Loop has 6 letters. [2021-11-20 07:02:31,481 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:02:31,482 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 48 transitions. [2021-11-20 07:02:31,491 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-20 07:02:31,496 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 33 states and 39 transitions. [2021-11-20 07:02:31,497 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2021-11-20 07:02:31,498 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2021-11-20 07:02:31,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 39 transitions. [2021-11-20 07:02:31,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 07:02:31,499 INFO L681 BuchiCegarLoop]: Abstraction has 33 states and 39 transitions. [2021-11-20 07:02:31,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 39 transitions. [2021-11-20 07:02:31,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2021-11-20 07:02:31,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 24 states have internal predecessors, (25), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2021-11-20 07:02:31,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2021-11-20 07:02:31,508 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 35 transitions. [2021-11-20 07:02:31,508 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 35 transitions. [2021-11-20 07:02:31,508 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-20 07:02:31,508 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 35 transitions. [2021-11-20 07:02:31,510 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-20 07:02:31,510 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:02:31,510 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:02:31,511 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:02:31,511 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 07:02:31,512 INFO L791 eck$LassoCheckResult]: Stem: 210#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 211#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_#t~ret10#1.base, main_#t~ret10#1.offset, main_~length~1#1, main_~original~0#1.base, main_~original~0#1.offset, main_~res~0#1.base, main_~res~0#1.offset;main_~length~1#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 212#L43 assume !(main_~length~1#1 < 1); 213#L43-2 assume { :begin_inline_build_nondet_String } true;build_nondet_String_#in~length#1 := main_~length~1#1;havoc build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;havoc build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset, build_nondet_String_~length#1, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset;build_nondet_String_~length#1 := build_nondet_String_#in~length#1;call build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length#1);build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset := build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;havoc build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;call write~int(0, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset + (build_nondet_String_~length#1 - 1), 1);build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset := build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset; 232#L12 main_#t~ret9#1.base, main_#t~ret9#1.offset := build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;assume { :end_inline_build_nondet_String } true;main_~original~0#1.base, main_~original~0#1.offset := main_#t~ret9#1.base, main_#t~ret9#1.offset;havoc main_#t~ret9#1.base, main_#t~ret9#1.offset;assume { :begin_inline_rec_strcopy } true;rec_strcopy_#in~source#1.base, rec_strcopy_#in~source#1.offset := main_~original~0#1.base, main_~original~0#1.offset;havoc rec_strcopy_#res#1.base, rec_strcopy_#res#1.offset;havoc rec_strcopy_#t~ret6#1, rec_strcopy_#t~malloc7#1.base, rec_strcopy_#t~malloc7#1.offset, rec_strcopy_~source#1.base, rec_strcopy_~source#1.offset, rec_strcopy_~length~0#1, rec_strcopy_~copyAlloc~0#1.base, rec_strcopy_~copyAlloc~0#1.offset;rec_strcopy_~source#1.base, rec_strcopy_~source#1.offset := rec_strcopy_#in~source#1.base, rec_strcopy_#in~source#1.offset; 206#L34 call rec_strcopy_#t~ret6#1 := rec_cstrlen(rec_strcopy_~source#1.base, rec_strcopy_~source#1.offset);< 223#rec_cstrlenENTRY ~s.base, ~s.offset := #in~s.base, #in~s.offset;call #t~mem2 := read~int(~s.base, ~s.offset, 1); 205#L17 assume 0 == #t~mem2;havoc #t~mem2;#res := 0; 207#rec_cstrlenFINAL assume true; 233#rec_cstrlenEXIT >#41#return; 229#L34-1 rec_strcopy_~length~0#1 := rec_strcopy_#t~ret6#1;havoc rec_strcopy_#t~ret6#1;call rec_strcopy_#t~malloc7#1.base, rec_strcopy_#t~malloc7#1.offset := #Ultimate.allocOnHeap(1 + rec_strcopy_~length~0#1);rec_strcopy_~copyAlloc~0#1.base, rec_strcopy_~copyAlloc~0#1.offset := rec_strcopy_#t~malloc7#1.base, rec_strcopy_#t~malloc7#1.offset;havoc rec_strcopy_#t~malloc7#1.base, rec_strcopy_#t~malloc7#1.offset; 217#L36 call rec_strcopy_helper(rec_strcopy_~source#1.base, rec_strcopy_~source#1.offset, rec_strcopy_~copyAlloc~0#1.base, rec_strcopy_~copyAlloc~0#1.offset);< 218#rec_strcopy_helperENTRY [2021-11-20 07:02:31,512 INFO L793 eck$LassoCheckResult]: Loop: 218#rec_strcopy_helperENTRY ~source.base, ~source.offset := #in~source.base, #in~source.offset;~dest.base, ~dest.offset := #in~dest.base, #in~dest.offset;call #t~mem4 := read~int(~source.base, ~source.offset, 1);call write~int(#t~mem4, ~dest.base, ~dest.offset, 1);havoc #t~mem4;call #t~mem5 := read~int(~source.base, ~source.offset, 1); 222#L28 assume 0 != #t~mem5;havoc #t~mem5; 221#L29 call rec_strcopy_helper(~source.base, 1 + ~source.offset, ~dest.base, 1 + ~dest.offset);< 218#rec_strcopy_helperENTRY [2021-11-20 07:02:31,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:02:31,513 INFO L85 PathProgramCache]: Analyzing trace with hash -509542028, now seen corresponding path program 1 times [2021-11-20 07:02:31,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:02:31,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776303538] [2021-11-20 07:02:31,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:02:31,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:02:31,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:02:31,561 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:02:31,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:02:31,584 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:02:31,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:02:31,589 INFO L85 PathProgramCache]: Analyzing trace with hash 29922, now seen corresponding path program 1 times [2021-11-20 07:02:31,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:02:31,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118678997] [2021-11-20 07:02:31,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:02:31,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:02:31,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:02:31,607 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:02:31,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:02:31,628 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:02:31,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:02:31,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1352131953, now seen corresponding path program 1 times [2021-11-20 07:02:31,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:02:31,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562113452] [2021-11-20 07:02:31,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:02:31,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:02:31,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:31,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-20 07:02:31,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:31,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:02:31,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:02:31,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562113452] [2021-11-20 07:02:31,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562113452] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:02:31,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:02:31,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 07:02:31,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459641836] [2021-11-20 07:02:31,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:02:32,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:02:32,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 07:02:32,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-11-20 07:02:32,088 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. cyclomatic complexity: 6 Second operand has 10 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:02:32,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:02:32,217 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2021-11-20 07:02:32,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-20 07:02:32,218 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 38 transitions. [2021-11-20 07:02:32,219 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-20 07:02:32,220 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 21 states and 23 transitions. [2021-11-20 07:02:32,220 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2021-11-20 07:02:32,221 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-11-20 07:02:32,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 23 transitions. [2021-11-20 07:02:32,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 07:02:32,221 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 23 transitions. [2021-11-20 07:02:32,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 23 transitions. [2021-11-20 07:02:32,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-11-20 07:02:32,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-20 07:02:32,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2021-11-20 07:02:32,223 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 23 transitions. [2021-11-20 07:02:32,223 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 23 transitions. [2021-11-20 07:02:32,224 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-20 07:02:32,224 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 23 transitions. [2021-11-20 07:02:32,224 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-20 07:02:32,224 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:02:32,224 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:02:32,225 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:02:32,225 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 07:02:32,225 INFO L791 eck$LassoCheckResult]: Stem: 303#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 304#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_#t~ret10#1.base, main_#t~ret10#1.offset, main_~length~1#1, main_~original~0#1.base, main_~original~0#1.offset, main_~res~0#1.base, main_~res~0#1.offset;main_~length~1#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 305#L43 assume !(main_~length~1#1 < 1); 306#L43-2 assume { :begin_inline_build_nondet_String } true;build_nondet_String_#in~length#1 := main_~length~1#1;havoc build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;havoc build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset, build_nondet_String_~length#1, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset;build_nondet_String_~length#1 := build_nondet_String_#in~length#1;call build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length#1);build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset := build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;havoc build_nondet_String_#t~malloc1#1.base, build_nondet_String_#t~malloc1#1.offset;call write~int(0, build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset + (build_nondet_String_~length#1 - 1), 1);build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset := build_nondet_String_~nondetString~0#1.base, build_nondet_String_~nondetString~0#1.offset; 307#L12 main_#t~ret9#1.base, main_#t~ret9#1.offset := build_nondet_String_#res#1.base, build_nondet_String_#res#1.offset;assume { :end_inline_build_nondet_String } true;main_~original~0#1.base, main_~original~0#1.offset := main_#t~ret9#1.base, main_#t~ret9#1.offset;havoc main_#t~ret9#1.base, main_#t~ret9#1.offset;assume { :begin_inline_rec_strcopy } true;rec_strcopy_#in~source#1.base, rec_strcopy_#in~source#1.offset := main_~original~0#1.base, main_~original~0#1.offset;havoc rec_strcopy_#res#1.base, rec_strcopy_#res#1.offset;havoc rec_strcopy_#t~ret6#1, rec_strcopy_#t~malloc7#1.base, rec_strcopy_#t~malloc7#1.offset, rec_strcopy_~source#1.base, rec_strcopy_~source#1.offset, rec_strcopy_~length~0#1, rec_strcopy_~copyAlloc~0#1.base, rec_strcopy_~copyAlloc~0#1.offset;rec_strcopy_~source#1.base, rec_strcopy_~source#1.offset := rec_strcopy_#in~source#1.base, rec_strcopy_#in~source#1.offset; 302#L34 call rec_strcopy_#t~ret6#1 := rec_cstrlen(rec_strcopy_~source#1.base, rec_strcopy_~source#1.offset);< 315#rec_cstrlenENTRY ~s.base, ~s.offset := #in~s.base, #in~s.offset;call #t~mem2 := read~int(~s.base, ~s.offset, 1); 301#L17 assume !(0 == #t~mem2);havoc #t~mem2; 299#L20 call #t~ret3 := rec_cstrlen(~s.base, 1 + ~s.offset);< 308#rec_cstrlenENTRY ~s.base, ~s.offset := #in~s.base, #in~s.offset;call #t~mem2 := read~int(~s.base, ~s.offset, 1); 298#L17 assume 0 == #t~mem2;havoc #t~mem2;#res := 0; 300#rec_cstrlenFINAL assume true; 316#rec_cstrlenEXIT >#45#return; 311#L20-1 #res := 1 + #t~ret3;havoc #t~ret3; 312#rec_cstrlenFINAL assume true; 318#rec_cstrlenEXIT >#41#return; 317#L34-1 rec_strcopy_~length~0#1 := rec_strcopy_#t~ret6#1;havoc rec_strcopy_#t~ret6#1;call rec_strcopy_#t~malloc7#1.base, rec_strcopy_#t~malloc7#1.offset := #Ultimate.allocOnHeap(1 + rec_strcopy_~length~0#1);rec_strcopy_~copyAlloc~0#1.base, rec_strcopy_~copyAlloc~0#1.offset := rec_strcopy_#t~malloc7#1.base, rec_strcopy_#t~malloc7#1.offset;havoc rec_strcopy_#t~malloc7#1.base, rec_strcopy_#t~malloc7#1.offset; 309#L36 call rec_strcopy_helper(rec_strcopy_~source#1.base, rec_strcopy_~source#1.offset, rec_strcopy_~copyAlloc~0#1.base, rec_strcopy_~copyAlloc~0#1.offset);< 310#rec_strcopy_helperENTRY [2021-11-20 07:02:32,225 INFO L793 eck$LassoCheckResult]: Loop: 310#rec_strcopy_helperENTRY ~source.base, ~source.offset := #in~source.base, #in~source.offset;~dest.base, ~dest.offset := #in~dest.base, #in~dest.offset;call #t~mem4 := read~int(~source.base, ~source.offset, 1);call write~int(#t~mem4, ~dest.base, ~dest.offset, 1);havoc #t~mem4;call #t~mem5 := read~int(~source.base, ~source.offset, 1); 314#L28 assume 0 != #t~mem5;havoc #t~mem5; 313#L29 call rec_strcopy_helper(~source.base, 1 + ~source.offset, ~dest.base, 1 + ~dest.offset);< 310#rec_strcopy_helperENTRY [2021-11-20 07:02:32,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:02:32,228 INFO L85 PathProgramCache]: Analyzing trace with hash -462834206, now seen corresponding path program 1 times [2021-11-20 07:02:32,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:02:32,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825094725] [2021-11-20 07:02:32,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:02:32,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:02:32,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:02:32,268 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:02:32,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:02:32,297 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:02:32,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:02:32,301 INFO L85 PathProgramCache]: Analyzing trace with hash 29922, now seen corresponding path program 2 times [2021-11-20 07:02:32,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:02:32,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103048568] [2021-11-20 07:02:32,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:02:32,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:02:32,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:02:32,312 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:02:32,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:02:32,329 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:02:32,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:02:32,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1448810655, now seen corresponding path program 1 times [2021-11-20 07:02:32,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:02:32,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554412274] [2021-11-20 07:02:32,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:02:32,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:02:32,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:02:32,368 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:02:32,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:02:32,402 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:02:32,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-11-20 07:02:33,936 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:02:33,936 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:02:33,936 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:02:33,936 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:02:33,936 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 07:02:33,936 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:02:33,936 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:02:33,936 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:02:33,937 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_strcopy_malloc2.i_Iteration4_Lasso [2021-11-20 07:02:33,937 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:02:33,937 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:02:33,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:33,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:33,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:33,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:33,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:33,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:33,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:33,959 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:34,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:34,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:34,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:34,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:34,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:34,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:34,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:34,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:34,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:34,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:34,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:34,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:34,200 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:34,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:34,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:34,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:34,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:34,210 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:34,211 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:34,213 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:34,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:34,216 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:34,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:34,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:34,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:34,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:34,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:34,225 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:34,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:34,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:34,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:34,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:34,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:34,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:34,248 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:34,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:34,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:02:34,635 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:02:34,640 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 07:02:34,643 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:02:34,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:02:34,644 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:02:34,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-11-20 07:02:34,655 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:02:34,664 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:02:34,664 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:02:34,664 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:02:34,664 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:02:34,665 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:02:34,665 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:02:34,665 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:02:34,678 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:02:34,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-11-20 07:02:34,697 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:02:34,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:02:34,698 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:02:34,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-11-20 07:02:34,701 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:02:34,708 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:02:34,708 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:02:34,708 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:02:34,709 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:02:34,709 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:02:34,709 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:02:34,709 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:02:34,710 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:02:34,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-11-20 07:02:34,732 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:02:34,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:02:34,733 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:02:34,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-11-20 07:02:34,734 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:02:34,743 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:02:34,743 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:02:34,744 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:02:34,744 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:02:34,744 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:02:34,744 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:02:34,745 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:02:34,758 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:02:34,781 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-11-20 07:02:34,781 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:02:34,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:02:34,782 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:02:34,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-11-20 07:02:34,783 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:02:34,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:02:34,791 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:02:34,791 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:02:34,791 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:02:34,791 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:02:34,791 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:02:34,791 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:02:34,805 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:02:34,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-11-20 07:02:34,825 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:02:34,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:02:34,825 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:02:34,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-11-20 07:02:34,827 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:02:34,833 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:02:34,834 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:02:34,834 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:02:34,834 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:02:34,834 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:02:34,834 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:02:34,835 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:02:34,836 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:02:34,854 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-11-20 07:02:34,855 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:02:34,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:02:34,856 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:02:34,883 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:02:34,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:02:34,892 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:02:34,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:02:34,892 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:02:34,892 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:02:34,893 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:02:34,893 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:02:34,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-11-20 07:02:34,910 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:02:34,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-11-20 07:02:34,936 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:02:34,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:02:34,936 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:02:34,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-11-20 07:02:34,939 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:02:34,946 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:02:34,946 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:02:34,947 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:02:34,947 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:02:34,949 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 07:02:34,950 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 07:02:34,974 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:02:35,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-11-20 07:02:35,007 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:02:35,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:02:35,010 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:02:35,012 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:02:35,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:02:35,022 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2021-11-20 07:02:35,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:02:35,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:02:35,028 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-11-20 07:02:35,028 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 07:02:35,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-11-20 07:02:35,042 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:02:35,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-11-20 07:02:35,076 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:02:35,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:02:35,078 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:02:35,082 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 07:02:35,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:02:35,092 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:02:35,092 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:02:35,092 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:02:35,099 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 07:02:35,100 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 07:02:35,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-11-20 07:02:35,118 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 07:02:35,148 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2021-11-20 07:02:35,148 INFO L444 ModelExtractionUtils]: 3 out of 16 variables were initially zero. Simplification set additionally 10 variables to zero. [2021-11-20 07:02:35,148 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:02:35,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:02:35,149 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:02:35,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-11-20 07:02:35,155 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 07:02:35,190 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-20 07:02:35,191 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 07:02:35,191 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length rec_strcopy_helper_#in~dest.base)_1, rec_strcopy_helper_#in~source.offset) = 1*v_rep(select #length rec_strcopy_helper_#in~dest.base)_1 - 1*rec_strcopy_helper_#in~source.offset Supporting invariants [] [2021-11-20 07:02:35,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-11-20 07:02:35,241 INFO L297 tatePredicateManager]: 5 out of 6 supporting invariants were superfluous and have been removed [2021-11-20 07:02:35,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:02:35,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:35,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-20 07:02:35,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:02:35,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-11-20 07:02:35,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:02:35,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-20 07:02:35,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:02:35,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:02:35,677 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.5 stem predicates 2 loop predicates [2021-11-20 07:02:35,677 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 23 transitions. cyclomatic complexity: 4 Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 07:02:35,813 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 23 transitions. cyclomatic complexity: 4. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 33 states and 36 transitions. Complement of second has 12 states. [2021-11-20 07:02:35,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 5 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-20 07:02:35,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 07:02:35,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 19 transitions. [2021-11-20 07:02:35,816 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 19 transitions. Stem has 18 letters. Loop has 3 letters. [2021-11-20 07:02:35,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:02:35,817 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 19 transitions. Stem has 21 letters. Loop has 3 letters. [2021-11-20 07:02:35,818 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:02:35,818 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 19 transitions. Stem has 18 letters. Loop has 6 letters. [2021-11-20 07:02:35,818 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:02:35,818 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 36 transitions. [2021-11-20 07:02:35,822 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-20 07:02:35,824 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 0 states and 0 transitions. [2021-11-20 07:02:35,824 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-20 07:02:35,825 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-20 07:02:35,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-20 07:02:35,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:02:35,825 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 07:02:35,825 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 07:02:35,825 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 07:02:35,825 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-20 07:02:35,825 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-20 07:02:35,826 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-20 07:02:35,826 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-20 07:02:35,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 07:02:35 BoogieIcfgContainer [2021-11-20 07:02:35,839 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-20 07:02:35,840 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:02:35,840 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:02:35,840 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:02:35,841 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:02:27" (3/4) ... [2021-11-20 07:02:35,843 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 07:02:35,844 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:02:35,845 INFO L158 Benchmark]: Toolchain (without parser) took 8721.92ms. Allocated memory was 104.9MB in the beginning and 165.7MB in the end (delta: 60.8MB). Free memory was 73.2MB in the beginning and 98.6MB in the end (delta: -25.3MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. [2021-11-20 07:02:35,845 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 104.9MB. Free memory is still 58.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:02:35,846 INFO L158 Benchmark]: CACSL2BoogieTranslator took 265.64ms. Allocated memory is still 104.9MB. Free memory was 73.0MB in the beginning and 80.3MB in the end (delta: -7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 07:02:35,847 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.11ms. Allocated memory is still 104.9MB. Free memory was 80.3MB in the beginning and 78.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:02:35,847 INFO L158 Benchmark]: Boogie Preprocessor took 52.75ms. Allocated memory is still 104.9MB. Free memory was 78.4MB in the beginning and 77.6MB in the end (delta: 827.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:02:35,847 INFO L158 Benchmark]: RCFGBuilder took 315.09ms. Allocated memory is still 104.9MB. Free memory was 77.2MB in the beginning and 66.8MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 07:02:35,848 INFO L158 Benchmark]: BuchiAutomizer took 8020.42ms. Allocated memory was 104.9MB in the beginning and 165.7MB in the end (delta: 60.8MB). Free memory was 66.8MB in the beginning and 99.6MB in the end (delta: -32.8MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. [2021-11-20 07:02:35,848 INFO L158 Benchmark]: Witness Printer took 4.14ms. Allocated memory is still 165.7MB. Free memory was 99.6MB in the beginning and 98.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:02:35,852 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 104.9MB. Free memory is still 58.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 265.64ms. Allocated memory is still 104.9MB. Free memory was 73.0MB in the beginning and 80.3MB in the end (delta: -7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.11ms. Allocated memory is still 104.9MB. Free memory was 80.3MB in the beginning and 78.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.75ms. Allocated memory is still 104.9MB. Free memory was 78.4MB in the beginning and 77.6MB in the end (delta: 827.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 315.09ms. Allocated memory is still 104.9MB. Free memory was 77.2MB in the beginning and 66.8MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 8020.42ms. Allocated memory was 104.9MB in the beginning and 165.7MB in the end (delta: 60.8MB). Free memory was 66.8MB in the beginning and 99.6MB in the end (delta: -32.8MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. * Witness Printer took 4.14ms. Allocated memory is still 165.7MB. Free memory was 99.6MB in the beginning and 98.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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 4 terminating modules (2 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[s] + -1 * s and consists of 3 locations. One deterministic module has affine ranking function -1 * source + unknown-#length-unknown[dest] and consists of 7 locations. 2 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.9s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 6.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 31 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 48 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 47 mSDsluCounter, 322 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 246 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 151 IncrementalHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 76 mSDtfsCounter, 151 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital141 mio100 ax100 hnf100 lsp95 ukn68 mio100 lsp42 div100 bol100 ite100 ukn100 eq169 hnf90 smp100 dnf102 smp97 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 34ms VariablesStem: 3 VariablesLoop: 4 DisjunctsStem: 4 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 12 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! [2021-11-20 07:02:35,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9b05ab7-2b1b-499a-af40-c68c1c3abc5a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE