./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive/Addition03-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive/Addition03-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2b4726bd085117d6d28f7ec87f442bbec9d0d87c17bc39b8147695c8c5a6ec7b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 23:20:01,195 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 23:20:01,199 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 23:20:01,256 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 23:20:01,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 23:20:01,263 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 23:20:01,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 23:20:01,266 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 23:20:01,268 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 23:20:01,269 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 23:20:01,271 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 23:20:01,273 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 23:20:01,273 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 23:20:01,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 23:20:01,277 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 23:20:01,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 23:20:01,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 23:20:01,281 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 23:20:01,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 23:20:01,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 23:20:01,288 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 23:20:01,294 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 23:20:01,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 23:20:01,297 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 23:20:01,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 23:20:01,307 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 23:20:01,308 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 23:20:01,309 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 23:20:01,310 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 23:20:01,311 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 23:20:01,311 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 23:20:01,312 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 23:20:01,313 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 23:20:01,314 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 23:20:01,316 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 23:20:01,316 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 23:20:01,317 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 23:20:01,318 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 23:20:01,318 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 23:20:01,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 23:20:01,324 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 23:20:01,324 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-02 23:20:01,378 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 23:20:01,385 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 23:20:01,385 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 23:20:01,386 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 23:20:01,387 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 23:20:01,388 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 23:20:01,388 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 23:20:01,389 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-02 23:20:01,389 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-02 23:20:01,389 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-02 23:20:01,390 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-02 23:20:01,391 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-02 23:20:01,391 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-02 23:20:01,391 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 23:20:01,392 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 23:20:01,392 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-02 23:20:01,392 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 23:20:01,393 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 23:20:01,393 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 23:20:01,393 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-02 23:20:01,393 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-02 23:20:01,394 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-02 23:20:01,394 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 23:20:01,394 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 23:20:01,394 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-02 23:20:01,395 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 23:20:01,400 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-02 23:20:01,400 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 23:20:01,400 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 23:20:01,401 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 23:20:01,401 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 23:20:01,401 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 23:20:01,402 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-02 23:20:01,403 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_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b4726bd085117d6d28f7ec87f442bbec9d0d87c17bc39b8147695c8c5a6ec7b [2021-11-02 23:20:01,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 23:20:01,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 23:20:01,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 23:20:01,748 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 23:20:01,749 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 23:20:01,750 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/recursive/Addition03-1.c [2021-11-02 23:20:01,852 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/data/2c1c6a0fe/e23c572bfba74f349b9bfaf5586b4ea9/FLAG964fb1f6d [2021-11-02 23:20:02,327 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 23:20:02,328 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/sv-benchmarks/c/recursive/Addition03-1.c [2021-11-02 23:20:02,335 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/data/2c1c6a0fe/e23c572bfba74f349b9bfaf5586b4ea9/FLAG964fb1f6d [2021-11-02 23:20:02,695 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/data/2c1c6a0fe/e23c572bfba74f349b9bfaf5586b4ea9 [2021-11-02 23:20:02,698 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 23:20:02,699 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 23:20:02,701 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 23:20:02,702 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 23:20:02,705 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 23:20:02,706 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:20:02" (1/1) ... [2021-11-02 23:20:02,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d779112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:02, skipping insertion in model container [2021-11-02 23:20:02,708 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:20:02" (1/1) ... [2021-11-02 23:20:02,716 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 23:20:02,729 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 23:20:02,873 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/sv-benchmarks/c/recursive/Addition03-1.c[840,853] [2021-11-02 23:20:02,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:20:02,909 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 23:20:02,927 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/sv-benchmarks/c/recursive/Addition03-1.c[840,853] [2021-11-02 23:20:02,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:20:02,941 INFO L208 MainTranslator]: Completed translation [2021-11-02 23:20:02,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:02 WrapperNode [2021-11-02 23:20:02,942 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 23:20:02,943 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 23:20:02,943 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 23:20:02,944 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 23:20:02,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:02" (1/1) ... [2021-11-02 23:20:02,962 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:02" (1/1) ... [2021-11-02 23:20:02,988 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 23:20:02,989 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 23:20:02,990 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 23:20:02,990 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 23:20:03,008 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:02" (1/1) ... [2021-11-02 23:20:03,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:02" (1/1) ... [2021-11-02 23:20:03,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:02" (1/1) ... [2021-11-02 23:20:03,024 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:02" (1/1) ... [2021-11-02 23:20:03,028 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:02" (1/1) ... [2021-11-02 23:20:03,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:02" (1/1) ... [2021-11-02 23:20:03,039 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:02" (1/1) ... [2021-11-02 23:20:03,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 23:20:03,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 23:20:03,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 23:20:03,044 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 23:20:03,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:02" (1/1) ... [2021-11-02 23:20:03,055 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:03,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:20:03,090 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:20:03,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-02 23:20:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 23:20:03,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 23:20:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 23:20:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 23:20:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2021-11-02 23:20:03,153 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2021-11-02 23:20:03,428 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 23:20:03,428 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-02 23:20:03,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:20:03 BoogieIcfgContainer [2021-11-02 23:20:03,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 23:20:03,431 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-02 23:20:03,432 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-02 23:20:03,451 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-02 23:20:03,452 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 23:20:03,452 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 11:20:02" (1/3) ... [2021-11-02 23:20:03,465 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4843f740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 11:20:03, skipping insertion in model container [2021-11-02 23:20:03,465 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 23:20:03,465 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:02" (2/3) ... [2021-11-02 23:20:03,466 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4843f740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 11:20:03, skipping insertion in model container [2021-11-02 23:20:03,466 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 23:20:03,466 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:20:03" (3/3) ... [2021-11-02 23:20:03,468 INFO L389 chiAutomizerObserver]: Analyzing ICFG Addition03-1.c [2021-11-02 23:20:03,524 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-02 23:20:03,524 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-02 23:20:03,524 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-02 23:20:03,524 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-02 23:20:03,525 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-02 23:20:03,525 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-02 23:20:03,525 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-02 23:20:03,525 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-02 23:20:03,547 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-02 23:20:03,584 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-11-02 23:20:03,585 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 23:20:03,590 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 23:20:03,600 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-02 23:20:03,600 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-02 23:20:03,601 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-02 23:20:03,601 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-02 23:20:03,604 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-11-02 23:20:03,604 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 23:20:03,604 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 23:20:03,605 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-02 23:20:03,605 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-02 23:20:03,612 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(15);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 11#L-1true havoc main_#res;havoc main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_~m~0, main_~n~0, main_~result~0;main_~m~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~n~0 := main_#t~nondet10;havoc main_#t~nondet10; 10#L31true call main_#t~ret11 := addition(main_~m~0, main_~n~0);< 9#additionENTRYtrue [2021-11-02 23:20:03,613 INFO L793 eck$LassoCheckResult]: Loop: 9#additionENTRYtrue ~m := #in~m;~n := #in~n; 7#L16true assume !(0 == ~n); 14#L19true assume ~n > 0; 15#L20true call #t~ret7 := addition(1 + ~m, ~n - 1);< 9#additionENTRYtrue [2021-11-02 23:20:03,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:20:03,627 INFO L85 PathProgramCache]: Analyzing trace with hash 29886, now seen corresponding path program 1 times [2021-11-02 23:20:03,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:20:03,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518119228] [2021-11-02 23:20:03,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:20:03,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:20:03,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:20:03,746 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:20:03,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:20:03,804 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:20:03,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:20:03,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1389362, now seen corresponding path program 1 times [2021-11-02 23:20:03,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:20:03,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919780601] [2021-11-02 23:20:03,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:20:03,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:20:03,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:20:03,816 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:20:03,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:20:03,823 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:20:03,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:20:03,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1831010671, now seen corresponding path program 1 times [2021-11-02 23:20:03,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:20:03,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751155238] [2021-11-02 23:20:03,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:20:03,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:20:03,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:20:03,847 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:20:03,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:20:03,878 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:20:04,035 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 23:20:04,035 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 23:20:04,036 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 23:20:04,036 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 23:20:04,036 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-02 23:20:04,036 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:04,036 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 23:20:04,037 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 23:20:04,037 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition03-1.c_Iteration1_Loop [2021-11-02 23:20:04,037 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 23:20:04,037 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 23:20:04,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:20:04,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:20:04,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:20:04,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:20:04,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:20:04,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:20:04,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:20:04,146 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-02 23:20:04,146 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-02 23:20:04,149 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:04,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:20:04,151 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:20:04,157 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 23:20:04,157 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 23:20:04,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-02 23:20:04,188 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-02 23:20:04,189 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_~m=0} Honda state: {addition_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-02 23:20:04,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-02 23:20:04,225 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:04,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:20:04,227 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:20:04,237 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 23:20:04,237 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 23:20:04,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-02 23:20:04,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-02 23:20:04,296 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:04,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:20:04,298 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:20:04,304 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-02 23:20:04,304 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 23:20:04,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-02 23:20:04,338 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-02 23:20:04,338 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#in~m=0} Honda state: {addition_#in~m=0} Generalized eigenvectors: [{addition_#in~m=-5}, {addition_#in~m=0}, {addition_#in~m=6}] Lambdas: [1, 6, 1] Nus: [1, 0] [2021-11-02 23:20:04,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-02 23:20:04,369 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:04,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:20:04,370 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:20:04,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-02 23:20:04,373 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 23:20:04,373 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 23:20:04,382 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-02 23:20:04,382 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#t~ret8=0} Honda state: {addition_#t~ret8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-02 23:20:04,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-02 23:20:04,420 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:04,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:20:04,421 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:20:04,432 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 23:20:04,433 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 23:20:04,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-02 23:20:04,456 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-02 23:20:04,456 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#res=0} Honda state: {addition_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-02 23:20:04,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-02 23:20:04,493 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:04,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:20:04,495 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:20:04,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-02 23:20:04,504 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 23:20:04,505 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 23:20:04,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-02 23:20:04,559 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:04,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:20:04,560 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:20:04,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-02 23:20:04,562 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-02 23:20:04,562 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 23:20:04,618 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-02 23:20:04,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-02 23:20:04,629 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 23:20:04,629 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 23:20:04,629 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 23:20:04,629 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 23:20:04,629 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-02 23:20:04,629 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:04,629 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 23:20:04,629 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 23:20:04,630 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition03-1.c_Iteration1_Loop [2021-11-02 23:20:04,630 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 23:20:04,630 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 23:20:04,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:20:04,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:20:04,637 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:20:04,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:20:04,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:20:04,646 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:20:04,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:20:04,693 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-02 23:20:04,698 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-02 23:20:04,699 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:04,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:20:04,713 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:20:04,717 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:20:04,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-02 23:20:04,726 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:20:04,727 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:20:04,727 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:20:04,728 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:20:04,728 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:20:04,730 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:20:04,730 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:20:04,738 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:20:04,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-02 23:20:04,761 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:04,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:20:04,762 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:20:04,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-02 23:20:04,764 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:20:04,773 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:20:04,773 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:20:04,773 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:20:04,773 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:20:04,774 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:20:04,774 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:20:04,775 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:20:04,797 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:20:04,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-02 23:20:04,819 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:04,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:20:04,820 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:20:04,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-02 23:20:04,825 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:20:04,832 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:20:04,832 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:20:04,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:20:04,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:20:04,833 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:20:04,834 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:20:04,834 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:20:04,836 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:20:04,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-02 23:20:04,856 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:04,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:20:04,858 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:20:04,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-02 23:20:04,864 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:20:04,872 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:20:04,873 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:20:04,873 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:20:04,873 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:20:04,873 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:20:04,874 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:20:04,874 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:20:04,887 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:20:04,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-02 23:20:04,920 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:04,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:20:04,921 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:20:04,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-02 23:20:04,922 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:20:04,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:20:04,930 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:20:04,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:20:04,930 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:20:04,930 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:20:04,932 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:20:04,932 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:20:04,936 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:20:04,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-02 23:20:04,955 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:04,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:20:04,956 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:20:04,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-02 23:20:04,962 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:20:04,970 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:20:04,970 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:20:04,970 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:20:04,970 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:20:04,970 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:20:04,971 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:20:04,971 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:20:04,993 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:20:05,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-02 23:20:05,014 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:05,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:20:05,015 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:20:05,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-02 23:20:05,016 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:20:05,024 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:20:05,024 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:20:05,024 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:20:05,024 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:20:05,024 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:20:05,025 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:20:05,025 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:20:05,040 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-02 23:20:05,043 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-02 23:20:05,043 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-02 23:20:05,044 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:05,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:20:05,046 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:20:05,056 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-02 23:20:05,057 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-02 23:20:05,057 INFO L513 LassoAnalysis]: Proved termination. [2021-11-02 23:20:05,057 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(addition_#in~n) = 1*addition_#in~n Supporting invariants [] [2021-11-02 23:20:05,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-02 23:20:05,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-02 23:20:05,089 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-02 23:20:05,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:20:05,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:20:05,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-02 23:20:05,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:20:05,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:20:05,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-02 23:20:05,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:20:05,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:20:05,280 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-02 23:20:05,281 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 19 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-11-02 23:20:05,408 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 19 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3). Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 49 states and 67 transitions. Complement of second has 12 states. [2021-11-02 23:20:05,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-02 23:20:05,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-11-02 23:20:05,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2021-11-02 23:20:05,414 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 4 letters. [2021-11-02 23:20:05,415 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 23:20:05,416 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 4 letters. [2021-11-02 23:20:05,416 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 23:20:05,416 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 8 letters. [2021-11-02 23:20:05,416 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 23:20:05,417 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 67 transitions. [2021-11-02 23:20:05,433 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-11-02 23:20:05,440 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 25 states and 28 transitions. [2021-11-02 23:20:05,441 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-11-02 23:20:05,442 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-11-02 23:20:05,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 28 transitions. [2021-11-02 23:20:05,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-02 23:20:05,443 INFO L681 BuchiCegarLoop]: Abstraction has 25 states and 28 transitions. [2021-11-02 23:20:05,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 28 transitions. [2021-11-02 23:20:05,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 16. [2021-11-02 23:20:05,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:20:05,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2021-11-02 23:20:05,470 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-11-02 23:20:05,470 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-11-02 23:20:05,470 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-02 23:20:05,470 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2021-11-02 23:20:05,470 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-11-02 23:20:05,471 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 23:20:05,471 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 23:20:05,471 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-02 23:20:05,471 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-11-02 23:20:05,471 INFO L791 eck$LassoCheckResult]: Stem: 129#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(15);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 130#L-1 havoc main_#res;havoc main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_~m~0, main_~n~0, main_~result~0;main_~m~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~n~0 := main_#t~nondet10;havoc main_#t~nondet10; 127#L31 call main_#t~ret11 := addition(main_~m~0, main_~n~0);< 136#additionENTRY ~m := #in~m;~n := #in~n; 131#L16 assume !(0 == ~n); 132#L19 assume !(~n > 0); 135#L22 [2021-11-02 23:20:05,471 INFO L793 eck$LassoCheckResult]: Loop: 135#L22 assume ~n < 0; 124#L23 call #t~ret8 := addition(~m - 1, 1 + ~n);< 126#additionENTRY ~m := #in~m;~n := #in~n; 139#L16 assume !(0 == ~n); 138#L19 assume !(~n > 0); 135#L22 [2021-11-02 23:20:05,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:20:05,472 INFO L85 PathProgramCache]: Analyzing trace with hash 890348855, now seen corresponding path program 1 times [2021-11-02 23:20:05,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:20:05,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875780659] [2021-11-02 23:20:05,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:20:05,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:20:05,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:20:05,487 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:20:05,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:20:05,504 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:20:05,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:20:05,505 INFO L85 PathProgramCache]: Analyzing trace with hash 55605035, now seen corresponding path program 1 times [2021-11-02 23:20:05,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:20:05,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562087786] [2021-11-02 23:20:05,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:20:05,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:20:05,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:20:05,542 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:20:05,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:20:05,548 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:20:05,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:20:05,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1017357237, now seen corresponding path program 1 times [2021-11-02 23:20:05,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:20:05,549 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962764139] [2021-11-02 23:20:05,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:20:05,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:20:05,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:20:05,596 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:20:05,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-02 23:20:05,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:20:05,622 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:20:05,807 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 23:20:05,807 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 23:20:05,807 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 23:20:05,807 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 23:20:05,808 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-02 23:20:05,808 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:05,808 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 23:20:05,808 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 23:20:05,808 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition03-1.c_Iteration2_Loop [2021-11-02 23:20:05,808 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 23:20:05,808 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 23:20:05,811 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:20:05,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:20:05,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:20:05,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:20:05,835 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:20:05,945 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-02 23:20:05,945 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-02 23:20:05,946 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:05,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:20:05,948 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:20:05,951 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 23:20:05,951 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 23:20:05,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-02 23:20:05,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-02 23:20:05,995 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:05,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:20:06,003 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:20:06,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-11-02 23:20:06,005 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-02 23:20:06,005 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 23:20:06,305 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-02 23:20:06,305 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#in~m=-1, addition_~m=-8} Honda state: {addition_#in~m=-1, addition_~m=-8} Generalized eigenvectors: [{addition_#in~m=-1, addition_~m=-1}, {addition_#in~m=1, addition_~m=0}, {addition_#in~m=-8, addition_~m=0}] Lambdas: [1, 8, 0] Nus: [0, 1] [2021-11-02 23:20:06,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-11-02 23:20:06,343 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:06,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:20:06,351 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:20:06,353 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 23:20:06,353 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 23:20:06,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-02 23:20:06,363 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-02 23:20:06,363 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#res=0} Honda state: {addition_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-02 23:20:06,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-11-02 23:20:06,388 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:06,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:20:06,389 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:20:06,395 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 23:20:06,395 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 23:20:06,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-11-02 23:20:06,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-11-02 23:20:06,449 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:06,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:20:06,450 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:20:06,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-11-02 23:20:06,451 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-02 23:20:06,451 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 23:20:14,302 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-02 23:20:14,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-11-02 23:20:14,305 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 23:20:14,305 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 23:20:14,305 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 23:20:14,305 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 23:20:14,305 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-02 23:20:14,306 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:14,306 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 23:20:14,306 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 23:20:14,306 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition03-1.c_Iteration2_Loop [2021-11-02 23:20:14,306 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 23:20:14,306 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 23:20:14,308 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:20:14,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:20:14,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:20:14,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:20:14,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:20:14,408 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-02 23:20:14,408 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-02 23:20:14,409 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:14,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:20:14,410 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:20:14,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-11-02 23:20:14,420 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:20:14,427 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:20:14,427 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:20:14,427 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:20:14,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:20:14,428 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:20:14,429 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:20:14,429 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:20:14,438 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:20:14,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-11-02 23:20:14,471 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:14,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:20:14,473 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:20:14,477 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:20:14,486 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:20:14,487 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:20:14,487 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:20:14,487 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:20:14,487 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:20:14,489 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:20:14,489 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:20:14,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-11-02 23:20:14,500 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:20:14,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-11-02 23:20:14,536 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:14,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:20:14,540 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:20:14,544 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:20:14,555 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:20:14,555 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:20:14,555 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:20:14,555 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:20:14,555 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:20:14,557 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:20:14,557 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:20:14,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-11-02 23:20:14,572 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-02 23:20:14,579 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-02 23:20:14,579 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-02 23:20:14,579 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:14,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:20:14,580 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:20:14,582 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-02 23:20:14,583 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-02 23:20:14,583 INFO L513 LassoAnalysis]: Proved termination. [2021-11-02 23:20:14,583 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(addition_~n) = -1*addition_~n Supporting invariants [] [2021-11-02 23:20:14,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-11-02 23:20:14,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-11-02 23:20:14,621 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-02 23:20:14,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:20:14,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:20:14,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-02 23:20:14,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:20:14,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:20:14,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-02 23:20:14,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:20:14,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:20:14,841 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-11-02 23:20:14,841 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5 Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-11-02 23:20:14,891 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) Result 30 states and 35 transitions. Complement of second has 13 states. [2021-11-02 23:20:14,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-11-02 23:20:14,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-11-02 23:20:14,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2021-11-02 23:20:14,893 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 6 letters. Loop has 5 letters. [2021-11-02 23:20:14,894 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 23:20:14,894 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 11 letters. Loop has 5 letters. [2021-11-02 23:20:14,895 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 23:20:14,895 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 6 letters. Loop has 10 letters. [2021-11-02 23:20:14,896 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 23:20:14,896 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2021-11-02 23:20:14,901 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-11-02 23:20:14,908 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 25 states and 29 transitions. [2021-11-02 23:20:14,909 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-11-02 23:20:14,909 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2021-11-02 23:20:14,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 29 transitions. [2021-11-02 23:20:14,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-02 23:20:14,909 INFO L681 BuchiCegarLoop]: Abstraction has 25 states and 29 transitions. [2021-11-02 23:20:14,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 29 transitions. [2021-11-02 23:20:14,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2021-11-02 23:20:14,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 18 states have internal predecessors, (22), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:20:14,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2021-11-02 23:20:14,917 INFO L704 BuchiCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-11-02 23:20:14,917 INFO L587 BuchiCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-11-02 23:20:14,917 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-02 23:20:14,918 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 27 transitions. [2021-11-02 23:20:14,919 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-11-02 23:20:14,919 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 23:20:14,919 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 23:20:14,921 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:20:14,921 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-02 23:20:14,921 INFO L791 eck$LassoCheckResult]: Stem: 243#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(15);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 244#L-1 havoc main_#res;havoc main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_~m~0, main_~n~0, main_~result~0;main_~m~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~n~0 := main_#t~nondet10;havoc main_#t~nondet10; 241#L31 call main_#t~ret11 := addition(main_~m~0, main_~n~0);< 253#additionENTRY ~m := #in~m;~n := #in~n; 245#L16 assume !(0 == ~n); 246#L19 assume !(~n > 0); 250#L22 assume ~n < 0; 239#L23 call #t~ret8 := addition(~m - 1, 1 + ~n);< 240#additionENTRY ~m := #in~m;~n := #in~n; 247#L16 assume !(0 == ~n); 249#L19 assume ~n > 0; 237#L20 [2021-11-02 23:20:14,921 INFO L793 eck$LassoCheckResult]: Loop: 237#L20 call #t~ret7 := addition(1 + ~m, ~n - 1);< 238#additionENTRY ~m := #in~m;~n := #in~n; 252#L16 assume !(0 == ~n); 257#L19 assume ~n > 0; 237#L20 [2021-11-02 23:20:14,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:20:14,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1017357234, now seen corresponding path program 1 times [2021-11-02 23:20:14,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:20:14,923 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163547890] [2021-11-02 23:20:14,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:20:14,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:20:14,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:20:15,050 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:20:15,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:20:15,050 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163547890] [2021-11-02 23:20:15,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163547890] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:20:15,052 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:20:15,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-02 23:20:15,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816383469] [2021-11-02 23:20:15,056 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-02 23:20:15,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:20:15,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1981232, now seen corresponding path program 2 times [2021-11-02 23:20:15,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:20:15,057 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007797560] [2021-11-02 23:20:15,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:20:15,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:20:15,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:20:15,071 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:20:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:20:15,083 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:20:15,163 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 23:20:15,164 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 23:20:15,164 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 23:20:15,164 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 23:20:15,164 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-02 23:20:15,164 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:15,164 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 23:20:15,164 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 23:20:15,165 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition03-1.c_Iteration3_Loop [2021-11-02 23:20:15,165 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 23:20:15,165 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 23:20:15,166 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:20:15,172 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:20:15,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:20:15,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:20:15,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:20:15,246 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-02 23:20:15,247 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-02 23:20:15,247 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:15,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:20:15,248 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:20:15,257 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 23:20:15,257 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 23:20:15,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-11-02 23:20:15,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-11-02 23:20:15,323 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:15,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:20:15,325 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:20:15,327 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-02 23:20:15,327 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 23:20:15,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-11-02 23:20:15,527 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-02 23:20:15,527 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#in~m=-4, addition_~m=-4} Honda state: {addition_#in~m=-4, addition_~m=-4} Generalized eigenvectors: [{addition_#in~m=5, addition_~m=5}, {addition_#in~m=0, addition_~m=0}, {addition_#in~m=-4, addition_~m=-4}] Lambdas: [1, 11, 1] Nus: [0, 0] [2021-11-02 23:20:15,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-11-02 23:20:15,549 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:15,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:20:15,550 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:20:15,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-11-02 23:20:15,552 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 23:20:15,557 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 23:20:15,566 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-02 23:20:15,566 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#t~ret7=0} Honda state: {addition_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-02 23:20:15,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-11-02 23:20:15,589 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:15,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:20:15,590 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:20:15,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-11-02 23:20:15,593 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 23:20:15,593 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 23:20:15,608 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-02 23:20:15,608 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#t~ret8=0} Honda state: {addition_#t~ret8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-02 23:20:15,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-11-02 23:20:15,629 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:15,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:20:15,630 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:20:15,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-11-02 23:20:15,633 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 23:20:15,633 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 23:20:15,641 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-02 23:20:15,641 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {addition_#res=0} Honda state: {addition_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-02 23:20:15,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-11-02 23:20:15,661 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:15,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:20:15,662 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:20:15,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-11-02 23:20:15,664 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 23:20:15,664 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 23:20:15,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-11-02 23:20:15,700 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:15,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:20:15,701 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:20:15,721 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-02 23:20:15,722 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 23:20:15,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-11-02 23:20:16,966 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-02 23:20:16,968 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-11-02 23:20:16,969 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 23:20:16,969 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 23:20:16,969 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 23:20:16,969 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 23:20:16,969 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-02 23:20:16,969 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:16,969 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 23:20:16,969 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 23:20:16,969 INFO L133 ssoRankerPreferences]: Filename of dumped script: Addition03-1.c_Iteration3_Loop [2021-11-02 23:20:16,969 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 23:20:16,969 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 23:20:16,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:20:16,989 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:20:16,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:20:16,993 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:20:17,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:20:17,046 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-02 23:20:17,047 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-02 23:20:17,047 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:17,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:20:17,048 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:20:17,057 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:20:17,067 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:20:17,068 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:20:17,068 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:20:17,068 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:20:17,068 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:20:17,069 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:20:17,069 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:20:17,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-11-02 23:20:17,084 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:20:17,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-11-02 23:20:17,117 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:17,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:20:17,120 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:20:17,164 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:20:17,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-11-02 23:20:17,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-11-02 23:20:17,172 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:20:17,172 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:20:17,172 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:20:17,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:20:17,172 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:20:17,173 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:20:17,173 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:20:17,188 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:20:17,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-11-02 23:20:17,224 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:17,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:20:17,227 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:20:17,229 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:20:17,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:20:17,239 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:20:17,240 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:20:17,240 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:20:17,240 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:20:17,241 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:20:17,241 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:20:17,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-11-02 23:20:17,256 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:20:17,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-11-02 23:20:17,293 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:17,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:20:17,294 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:20:17,296 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:20:17,306 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:20:17,306 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:20:17,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:20:17,306 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:20:17,306 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:20:17,309 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:20:17,309 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:20:17,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-11-02 23:20:17,320 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-02 23:20:17,332 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-11-02 23:20:17,333 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-02 23:20:17,333 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:17,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:20:17,334 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:20:17,336 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-02 23:20:17,336 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-02 23:20:17,336 INFO L513 LassoAnalysis]: Proved termination. [2021-11-02 23:20:17,336 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(addition_~n) = 1*addition_~n Supporting invariants [] [2021-11-02 23:20:17,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-11-02 23:20:17,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-11-02 23:20:17,376 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-02 23:20:17,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:20:17,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:20:17,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-02 23:20:17,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:20:17,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:20:17,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-02 23:20:17,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:20:17,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:20:17,506 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-02 23:20:17,506 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 27 transitions. cyclomatic complexity: 7 Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:20:17,540 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 27 transitions. cyclomatic complexity: 7. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 55 states and 63 transitions. Complement of second has 9 states. [2021-11-02 23:20:17,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-02 23:20:17,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:20:17,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-11-02 23:20:17,542 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 4 letters. [2021-11-02 23:20:17,542 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 23:20:17,542 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 15 letters. Loop has 4 letters. [2021-11-02 23:20:17,543 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 23:20:17,543 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 8 letters. [2021-11-02 23:20:17,543 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 23:20:17,543 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 63 transitions. [2021-11-02 23:20:17,546 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-11-02 23:20:17,548 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 47 states and 55 transitions. [2021-11-02 23:20:17,548 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2021-11-02 23:20:17,548 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2021-11-02 23:20:17,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 55 transitions. [2021-11-02 23:20:17,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-02 23:20:17,549 INFO L681 BuchiCegarLoop]: Abstraction has 47 states and 55 transitions. [2021-11-02 23:20:17,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 55 transitions. [2021-11-02 23:20:17,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 41. [2021-11-02 23:20:17,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 33 states have (on average 1.121212121212121) internal successors, (37), 32 states have internal predecessors, (37), 8 states have call successors, (11), 8 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:20:17,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2021-11-02 23:20:17,559 INFO L704 BuchiCegarLoop]: Abstraction has 41 states and 48 transitions. [2021-11-02 23:20:17,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:20:17,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 23:20:17,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-02 23:20:17,564 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand has 5 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-11-02 23:20:17,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:20:17,601 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2021-11-02 23:20:17,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-02 23:20:17,602 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 31 transitions. [2021-11-02 23:20:17,603 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-02 23:20:17,604 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 0 states and 0 transitions. [2021-11-02 23:20:17,604 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-02 23:20:17,604 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-02 23:20:17,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-02 23:20:17,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 23:20:17,605 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 23:20:17,605 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 23:20:17,605 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 23:20:17,605 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-02 23:20:17,605 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-02 23:20:17,605 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-02 23:20:17,605 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-02 23:20:17,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 11:20:17 BoogieIcfgContainer [2021-11-02 23:20:17,611 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-02 23:20:17,612 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-02 23:20:17,612 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-02 23:20:17,612 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-02 23:20:17,613 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:20:03" (3/4) ... [2021-11-02 23:20:17,617 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-02 23:20:17,617 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-02 23:20:17,626 INFO L168 Benchmark]: Toolchain (without parser) took 14918.11 ms. Allocated memory was 111.1 MB in the beginning and 140.5 MB in the end (delta: 29.4 MB). Free memory was 78.3 MB in the beginning and 92.7 MB in the end (delta: -14.4 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. [2021-11-02 23:20:17,627 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 111.1 MB. Free memory is still 64.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:20:17,628 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.03 ms. Allocated memory is still 111.1 MB. Free memory was 78.3 MB in the beginning and 86.2 MB in the end (delta: -7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-02 23:20:17,628 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.28 ms. Allocated memory is still 111.1 MB. Free memory was 85.8 MB in the beginning and 84.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 23:20:17,628 INFO L168 Benchmark]: Boogie Preprocessor took 52.81 ms. Allocated memory is still 111.1 MB. Free memory was 84.4 MB in the beginning and 83.6 MB in the end (delta: 866.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:20:17,629 INFO L168 Benchmark]: RCFGBuilder took 387.50 ms. Allocated memory is still 111.1 MB. Free memory was 83.6 MB in the beginning and 74.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-02 23:20:17,629 INFO L168 Benchmark]: BuchiAutomizer took 14179.96 ms. Allocated memory was 111.1 MB in the beginning and 140.5 MB in the end (delta: 29.4 MB). Free memory was 74.3 MB in the beginning and 93.7 MB in the end (delta: -19.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 16.1 GB. [2021-11-02 23:20:17,629 INFO L168 Benchmark]: Witness Printer took 5.18 ms. Allocated memory is still 140.5 MB. Free memory is still 92.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:20:17,631 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 111.1 MB. Free memory is still 64.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 241.03 ms. Allocated memory is still 111.1 MB. Free memory was 78.3 MB in the beginning and 86.2 MB in the end (delta: -7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.28 ms. Allocated memory is still 111.1 MB. Free memory was 85.8 MB in the beginning and 84.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.81 ms. Allocated memory is still 111.1 MB. Free memory was 84.4 MB in the beginning and 83.6 MB in the end (delta: 866.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 387.50 ms. Allocated memory is still 111.1 MB. Free memory was 83.6 MB in the beginning and 74.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 14179.96 ms. Allocated memory was 111.1 MB in the beginning and 140.5 MB in the end (delta: 29.4 MB). Free memory was 74.3 MB in the beginning and 93.7 MB in the end (delta: -19.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 16.1 GB. * Witness Printer took 5.18 ms. Allocated memory is still 140.5 MB. Free memory is still 92.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 4 locations. One deterministic module has affine ranking function -1 * n and consists of 5 locations. One deterministic module has affine ranking function n and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 14.0s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 13.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 17 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 23 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 37 SDtfs, 48 SDslu, 17 SDs, 0 SdLazy, 89 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf100 lsp65 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq173 hnf92 smp91 dnf100 smp100 tf110 neg98 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 39ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 10.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-02 23:20:17,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-11-02 23:20:17,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d6c3997-0e23-4849-ae70-6f3c70c363dc/bin/uautomizer-tBqnrhUYjU/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