./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/sum_20x0-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/sum_20x0-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD --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 2467b918f90fe26ead39772ec36304202be3f16a6c04dfdd5844d39d05599b5a ........................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:53:29,165 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:53:29,168 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:53:29,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:53:29,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:53:29,239 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:53:29,242 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:53:29,247 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:53:29,251 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:53:29,258 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:53:29,260 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:53:29,263 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:53:29,264 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:53:29,267 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:53:29,271 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:53:29,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:53:29,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:53:29,281 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:53:29,284 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:53:29,294 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:53:29,297 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:53:29,299 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:53:29,303 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:53:29,305 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:53:29,310 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:53:29,311 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:53:29,311 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:53:29,313 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:53:29,314 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:53:29,315 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:53:29,316 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:53:29,317 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:53:29,318 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:53:29,320 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:53:29,321 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:53:29,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:53:29,323 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:53:29,323 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:53:29,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:53:29,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:53:29,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:53:29,327 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 23:53:29,360 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:53:29,361 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:53:29,361 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:53:29,361 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:53:29,363 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:53:29,363 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:53:29,363 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:53:29,363 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:53:29,364 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:53:29,364 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:53:29,364 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:53:29,364 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:53:29,365 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:53:29,365 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:53:29,365 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:53:29,365 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:53:29,366 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:53:29,366 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:53:29,366 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:53:29,366 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:53:29,366 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:53:29,367 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:53:29,367 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:53:29,367 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:53:29,367 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:53:29,368 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:53:29,368 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:53:29,368 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:53:29,368 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:53:29,369 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:53:29,369 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:53:29,369 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:53:29,371 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:53:29,371 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_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2467b918f90fe26ead39772ec36304202be3f16a6c04dfdd5844d39d05599b5a [2021-10-28 23:53:29,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:53:29,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:53:29,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:53:29,790 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:53:29,792 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:53:29,793 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/recursive-simple/sum_20x0-2.c [2021-10-28 23:53:29,926 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/data/d8d2f9ad7/d69cfd92fc81451a976327e1d610687f/FLAG2c53db87d [2021-10-28 23:53:30,568 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:53:30,569 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/sv-benchmarks/c/recursive-simple/sum_20x0-2.c [2021-10-28 23:53:30,583 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/data/d8d2f9ad7/d69cfd92fc81451a976327e1d610687f/FLAG2c53db87d [2021-10-28 23:53:30,916 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/data/d8d2f9ad7/d69cfd92fc81451a976327e1d610687f [2021-10-28 23:53:30,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:53:30,921 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:53:30,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:53:30,924 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:53:30,928 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:53:30,929 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:53:30" (1/1) ... [2021-10-28 23:53:30,931 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d92a3ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:53:30, skipping insertion in model container [2021-10-28 23:53:30,931 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:53:30" (1/1) ... [2021-10-28 23:53:30,941 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:53:30,957 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:53:31,189 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_74064a1e-8f85-4a45-8287-aeb1a0df3506/sv-benchmarks/c/recursive-simple/sum_20x0-2.c[481,494] [2021-10-28 23:53:31,200 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:53:31,226 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:53:31,246 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_74064a1e-8f85-4a45-8287-aeb1a0df3506/sv-benchmarks/c/recursive-simple/sum_20x0-2.c[481,494] [2021-10-28 23:53:31,250 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:53:31,274 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:53:31,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:53:31 WrapperNode [2021-10-28 23:53:31,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:53:31,277 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:53:31,277 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:53:31,277 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:53:31,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:53:31" (1/1) ... [2021-10-28 23:53:31,297 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:53:31" (1/1) ... [2021-10-28 23:53:31,319 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:53:31,321 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:53:31,321 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:53:31,321 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:53:31,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:53:31" (1/1) ... [2021-10-28 23:53:31,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:53:31" (1/1) ... [2021-10-28 23:53:31,334 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:53:31" (1/1) ... [2021-10-28 23:53:31,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:53:31" (1/1) ... [2021-10-28 23:53:31,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:53:31" (1/1) ... [2021-10-28 23:53:31,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:53:31" (1/1) ... [2021-10-28 23:53:31,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:53:31" (1/1) ... [2021-10-28 23:53:31,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:53:31,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:53:31,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:53:31,346 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:53:31,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:53:31" (1/1) ... [2021-10-28 23:53:31,357 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:53:31,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:53:31,388 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:53:31,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:53:31,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:53:31,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:53:31,455 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2021-10-28 23:53:31,455 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2021-10-28 23:53:31,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:53:31,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:53:31,699 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:53:31,699 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-28 23:53:31,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:53:31 BoogieIcfgContainer [2021-10-28 23:53:31,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:53:31,703 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:53:31,703 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:53:31,707 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:53:31,708 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:53:31,709 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:53:30" (1/3) ... [2021-10-28 23:53:31,710 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7df40825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:53:31, skipping insertion in model container [2021-10-28 23:53:31,711 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:53:31,711 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:53:31" (2/3) ... [2021-10-28 23:53:31,712 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7df40825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:53:31, skipping insertion in model container [2021-10-28 23:53:31,712 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:53:31,712 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:53:31" (3/3) ... [2021-10-28 23:53:31,714 INFO L389 chiAutomizerObserver]: Analyzing ICFG sum_20x0-2.c [2021-10-28 23:53:31,787 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:53:31,788 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:53:31,788 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:53:31,788 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:53:31,788 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:53:31,789 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:53:31,789 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:53:31,789 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:53:31,828 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 23:53:31,872 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:53:31,872 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:53:31,872 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:53:31,881 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 23:53:31,881 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:53:31,881 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:53:31,882 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 23:53:31,884 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 23:53:31,884 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:53:31,884 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:53:31,885 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 23:53:31,885 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:53:31,893 INFO L791 eck$LassoCheckResult]: Stem: 6#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(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 8#L-1true havoc main_#res;havoc main_#t~ret8, main_~a~0, main_~b~0, main_~result~0;main_~a~0 := 20;main_~b~0 := 0; 3#L16true call main_#t~ret8 := sum(main_~a~0, main_~b~0);< 10#sumENTRYtrue [2021-10-28 23:53:31,894 INFO L793 eck$LassoCheckResult]: Loop: 10#sumENTRYtrue ~n := #in~n;~m := #in~m; 15#L6true assume !(~n <= 0); 14#L9true call #t~ret7 := sum(~n - 1, 1 + ~m);< 10#sumENTRYtrue [2021-10-28 23:53:31,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:53:31,902 INFO L85 PathProgramCache]: Analyzing trace with hash 29876, now seen corresponding path program 1 times [2021-10-28 23:53:31,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:53:31,915 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000662380] [2021-10-28 23:53:31,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:53:31,917 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:53:32,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:53:32,040 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:53:32,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:53:32,104 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:53:32,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:53:32,111 INFO L85 PathProgramCache]: Analyzing trace with hash 44820, now seen corresponding path program 1 times [2021-10-28 23:53:32,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:53:32,114 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294668673] [2021-10-28 23:53:32,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:53:32,116 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:53:32,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:53:32,141 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:53:32,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:53:32,155 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:53:32,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:53:32,166 INFO L85 PathProgramCache]: Analyzing trace with hash 890050945, now seen corresponding path program 1 times [2021-10-28 23:53:32,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:53:32,176 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189108389] [2021-10-28 23:53:32,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:53:32,177 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:53:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:53:32,209 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:53:32,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:53:32,253 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:53:32,493 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:53:32,494 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:53:32,494 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:53:32,495 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:53:32,495 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:53:32,495 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:53:32,495 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:53:32,495 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:53:32,496 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum_20x0-2.c_Iteration1_Loop [2021-10-28 23:53:32,496 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:53:32,497 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:53:32,519 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:53:32,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:53:32,532 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:53:32,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:53:32,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:53:32,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:53:32,659 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:53:32,659 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:53:32,662 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:53:32,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:53:32,674 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:53:32,682 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:53:32,682 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:53:32,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 23:53:32,714 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:53:32,714 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#t~ret7=0} Honda state: {sum_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:53:32,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:53:32,762 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:53:32,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:53:32,764 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:53:32,771 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:53:32,772 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:53:32,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 23:53:32,800 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:53:32,801 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#res=0} Honda state: {sum_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:53:32,842 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-10-28 23:53:32,842 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:53:32,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:53:32,845 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:53:32,857 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:53:32,858 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:53:32,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 23:53:32,893 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:53:32,893 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_~m=0} Honda state: {sum_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:53:32,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:53:32,940 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:53:32,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:53:32,942 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:53:32,950 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:53:32,951 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:53:32,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 23:53:33,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:53:33,001 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:53:33,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:53:33,003 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:53:33,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 23:53:33,014 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:53:33,014 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:53:33,093 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:53:33,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:53:33,097 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:53:33,098 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:53:33,098 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:53:33,098 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:53:33,098 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:53:33,099 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:53:33,099 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:53:33,099 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:53:33,099 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum_20x0-2.c_Iteration1_Loop [2021-10-28 23:53:33,099 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:53:33,099 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:53:33,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:53:33,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:53:33,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:53:33,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:53:33,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:53:33,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:53:33,188 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:53:33,194 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:53:33,196 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:53:33,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:53:33,198 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:53:33,205 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:53:33,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 23:53:33,223 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:53:33,224 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:53:33,224 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:53:33,225 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:53:33,225 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:53:33,227 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:53:33,227 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:53:33,232 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:53:33,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:53:33,260 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:53:33,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:53:33,262 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:53:33,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 23:53:33,265 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:53:33,274 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:53:33,274 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:53:33,274 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:53:33,275 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:53:33,275 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:53:33,275 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:53:33,276 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:53:33,284 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:53:33,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:53:33,310 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:53:33,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:53:33,311 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:53:33,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 23:53:33,317 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:53:33,326 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:53:33,326 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:53:33,327 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:53:33,327 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:53:33,327 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:53:33,329 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:53:33,329 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:53:33,339 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:53:33,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:53:33,368 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:53:33,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:53:33,370 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:53:33,372 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:53:33,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 23:53:33,381 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:53:33,381 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:53:33,381 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:53:33,381 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:53:33,381 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:53:33,383 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:53:33,383 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:53:33,398 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:53:33,403 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:53:33,403 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:53:33,405 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:53:33,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:53:33,420 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:53:33,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 23:53:33,423 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:53:33,423 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:53:33,423 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:53:33,424 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(sum_#in~n) = 1*sum_#in~n Supporting invariants [] [2021-10-28 23:53:33,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:53:33,466 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:53:33,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:53:33,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:53:33,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:53:33,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:53:33,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:53:33,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 23:53:33,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:53:33,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:53:33,687 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 [2021-10-28 23:53:33,688 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-10-28 23:53:33,833 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2). Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 30 states and 35 transitions. Complement of second has 12 states. [2021-10-28 23:53:33,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 23:53:33,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-10-28 23:53:33,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2021-10-28 23:53:33,839 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 3 letters. [2021-10-28 23:53:33,841 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:53:33,841 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 6 letters. Loop has 3 letters. [2021-10-28 23:53:33,842 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:53:33,842 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 6 letters. [2021-10-28 23:53:33,842 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:53:33,843 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2021-10-28 23:53:33,847 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:53:33,851 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2021-10-28 23:53:33,852 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 23:53:33,852 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 23:53:33,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 23:53:33,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:53:33,854 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:53:33,854 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:53:33,854 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:53:33,854 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:53:33,854 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:53:33,855 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:53:33,855 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 23:53:33,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:53:33 BoogieIcfgContainer [2021-10-28 23:53:33,901 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:53:33,902 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:53:33,902 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:53:33,902 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:53:33,903 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:53:31" (3/4) ... [2021-10-28 23:53:33,906 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:53:33,906 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:53:33,909 INFO L168 Benchmark]: Toolchain (without parser) took 2986.02 ms. Allocated memory was 88.1 MB in the beginning and 136.3 MB in the end (delta: 48.2 MB). Free memory was 53.1 MB in the beginning and 110.6 MB in the end (delta: -57.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:53:33,911 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 88.1 MB. Free memory was 59.7 MB in the beginning and 59.6 MB in the end (delta: 25.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:53:33,912 INFO L168 Benchmark]: CACSL2BoogieTranslator took 352.48 ms. Allocated memory was 88.1 MB in the beginning and 136.3 MB in the end (delta: 48.2 MB). Free memory was 52.9 MB in the beginning and 112.1 MB in the end (delta: -59.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:53:33,915 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.18 ms. Allocated memory is still 136.3 MB. Free memory was 112.1 MB in the beginning and 110.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:53:33,920 INFO L168 Benchmark]: Boogie Preprocessor took 23.76 ms. Allocated memory is still 136.3 MB. Free memory was 110.7 MB in the beginning and 110.0 MB in the end (delta: 743.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:53:33,935 INFO L168 Benchmark]: RCFGBuilder took 356.79 ms. Allocated memory is still 136.3 MB. Free memory was 110.0 MB in the beginning and 100.2 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:53:33,936 INFO L168 Benchmark]: BuchiAutomizer took 2197.96 ms. Allocated memory is still 136.3 MB. Free memory was 100.2 MB in the beginning and 110.6 MB in the end (delta: -10.4 MB). Peak memory consumption was 62.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:53:33,936 INFO L168 Benchmark]: Witness Printer took 4.65 ms. Allocated memory is still 136.3 MB. Free memory is still 110.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:53:33,945 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks [2021-10-28 23:53:33,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 88.1 MB. Free memory was 59.7 MB in the beginning and 59.6 MB in the end (delta: 25.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 352.48 ms. Allocated memory was 88.1 MB in the beginning and 136.3 MB in the end (delta: 48.2 MB). Free memory was 52.9 MB in the beginning and 112.1 MB in the end (delta: -59.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.18 ms. Allocated memory is still 136.3 MB. Free memory was 112.1 MB in the beginning and 110.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.76 ms. Allocated memory is still 136.3 MB. Free memory was 110.7 MB in the beginning and 110.0 MB in the end (delta: 743.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 356.79 ms. Allocated memory is still 136.3 MB. Free memory was 110.0 MB in the beginning and 100.2 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2197.96 ms. Allocated memory is still 136.3 MB. Free memory was 100.2 MB in the beginning and 110.6 MB in the end (delta: -10.4 MB). Peak memory consumption was 62.3 MB. Max. memory is 16.1 GB. * Witness Printer took 4.65 ms. Allocated memory is still 136.3 MB. Free memory is still 110.6 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 5 SDtfs, 8 SDslu, 2 SDs, 0 SdLazy, 18 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 36ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 23:53:34,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74064a1e-8f85-4a45-8287-aeb1a0df3506/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...