./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-numeric/LeUserDefRec.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9200919b-8670-45a1-a49a-7e822f801d9a/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9200919b-8670-45a1-a49a-7e822f801d9a/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9200919b-8670-45a1-a49a-7e822f801d9a/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9200919b-8670-45a1-a49a-7e822f801d9a/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-numeric/LeUserDefRec.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9200919b-8670-45a1-a49a-7e822f801d9a/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9200919b-8670-45a1-a49a-7e822f801d9a/bin/uautomizer-WNIpwEf4Nt --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 87d0ba70ff123101875b88252c232be93381362a ........................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 01:15:03,108 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:15:03,111 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:15:03,167 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:15:03,168 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:15:03,173 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:15:03,175 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:15:03,179 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:15:03,182 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:15:03,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:15:03,191 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:15:03,193 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:15:03,194 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:15:03,197 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:15:03,200 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:15:03,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:15:03,205 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:15:03,206 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:15:03,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:15:03,221 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:15:03,223 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:15:03,225 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:15:03,228 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:15:03,229 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:15:03,239 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:15:03,239 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:15:03,240 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:15:03,242 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:15:03,242 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:15:03,244 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:15:03,245 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:15:03,245 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:15:03,248 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:15:03,249 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:15:03,251 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:15:03,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:15:03,252 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:15:03,252 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:15:03,252 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:15:03,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:15:03,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:15:03,255 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9200919b-8670-45a1-a49a-7e822f801d9a/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-13 01:15:03,306 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:15:03,311 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:15:03,312 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:15:03,312 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:15:03,313 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:15:03,314 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:15:03,315 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:15:03,315 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 01:15:03,315 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 01:15:03,316 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 01:15:03,317 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 01:15:03,317 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 01:15:03,317 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 01:15:03,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:15:03,318 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 01:15:03,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:15:03,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:15:03,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 01:15:03,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 01:15:03,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 01:15:03,320 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:15:03,320 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 01:15:03,320 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:15:03,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 01:15:03,321 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:15:03,321 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:15:03,323 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:15:03,323 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:15:03,324 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:15:03,325 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 01:15:03,325 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_9200919b-8670-45a1-a49a-7e822f801d9a/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9200919b-8670-45a1-a49a-7e822f801d9a/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87d0ba70ff123101875b88252c232be93381362a [2021-10-13 01:15:03,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:15:03,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:15:03,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:15:03,682 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:15:03,683 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:15:03,684 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9200919b-8670-45a1-a49a-7e822f801d9a/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/termination-numeric/LeUserDefRec.c [2021-10-13 01:15:03,766 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9200919b-8670-45a1-a49a-7e822f801d9a/bin/uautomizer-WNIpwEf4Nt/data/16a87bd36/611aae44bf064c66a7e21873e70e5ec4/FLAG1e8e6414f [2021-10-13 01:15:04,278 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:15:04,279 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9200919b-8670-45a1-a49a-7e822f801d9a/sv-benchmarks/c/termination-numeric/LeUserDefRec.c [2021-10-13 01:15:04,292 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9200919b-8670-45a1-a49a-7e822f801d9a/bin/uautomizer-WNIpwEf4Nt/data/16a87bd36/611aae44bf064c66a7e21873e70e5ec4/FLAG1e8e6414f [2021-10-13 01:15:04,654 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9200919b-8670-45a1-a49a-7e822f801d9a/bin/uautomizer-WNIpwEf4Nt/data/16a87bd36/611aae44bf064c66a7e21873e70e5ec4 [2021-10-13 01:15:04,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:15:04,659 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:15:04,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:15:04,663 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:15:04,667 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:15:04,668 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:15:04" (1/1) ... [2021-10-13 01:15:04,670 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fa0d1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:04, skipping insertion in model container [2021-10-13 01:15:04,672 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:15:04" (1/1) ... [2021-10-13 01:15:04,680 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:15:04,695 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:15:04,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:15:04,882 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:15:04,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:15:04,933 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:15:04,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:04 WrapperNode [2021-10-13 01:15:04,934 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:15:04,935 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:15:04,935 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:15:04,935 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:15:04,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:04" (1/1) ... [2021-10-13 01:15:04,949 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:04" (1/1) ... [2021-10-13 01:15:04,966 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:15:04,967 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:15:04,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:15:04,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:15:04,976 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:04" (1/1) ... [2021-10-13 01:15:04,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:04" (1/1) ... [2021-10-13 01:15:04,978 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:04" (1/1) ... [2021-10-13 01:15:04,979 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:04" (1/1) ... [2021-10-13 01:15:04,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:04" (1/1) ... [2021-10-13 01:15:04,984 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:04" (1/1) ... [2021-10-13 01:15:04,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:04" (1/1) ... [2021-10-13 01:15:04,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:15:04,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:15:04,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:15:04,988 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:15:04,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:04" (1/1) ... [2021-10-13 01:15:04,998 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:15:05,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9200919b-8670-45a1-a49a-7e822f801d9a/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:15:05,031 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9200919b-8670-45a1-a49a-7e822f801d9a/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:15:05,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9200919b-8670-45a1-a49a-7e822f801d9a/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 01:15:05,086 INFO L130 BoogieDeclarations]: Found specification of procedure le [2021-10-13 01:15:05,086 INFO L138 BoogieDeclarations]: Found implementation of procedure le [2021-10-13 01:15:05,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:15:05,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:15:05,303 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:15:05,303 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-13 01:15:05,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:15:05 BoogieIcfgContainer [2021-10-13 01:15:05,306 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:15:05,307 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 01:15:05,307 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 01:15:05,311 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 01:15:05,312 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:15:05,312 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 01:15:04" (1/3) ... [2021-10-13 01:15:05,314 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@68ff5ea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:15:05, skipping insertion in model container [2021-10-13 01:15:05,314 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:15:05,315 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:15:04" (2/3) ... [2021-10-13 01:15:05,315 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@68ff5ea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:15:05, skipping insertion in model container [2021-10-13 01:15:05,315 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:15:05,316 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:15:05" (3/3) ... [2021-10-13 01:15:05,317 INFO L389 chiAutomizerObserver]: Analyzing ICFG LeUserDefRec.c [2021-10-13 01:15:05,409 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 01:15:05,410 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 01:15:05,410 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 01:15:05,410 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 01:15:05,410 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 01:15:05,411 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 01:15:05,411 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 01:15:05,411 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 01:15:05,430 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 10 states have (on average 1.3) internal successors, (13), 10 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) [2021-10-13 01:15:05,459 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 01:15:05,459 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:15:05,459 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:15:05,467 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-13 01:15:05,468 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 01:15:05,468 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 01:15:05,468 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 10 states have (on average 1.3) internal successors, (13), 10 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) [2021-10-13 01:15:05,473 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 01:15:05,473 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:15:05,473 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:15:05,474 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-13 01:15:05,474 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 01:15:05,482 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~ret3, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 14#L23true assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 9#L26true assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 7#L29true call main_#t~ret3 := le(main_~x~0, main_~y~0);< 4#leENTRYtrue [2021-10-13 01:15:05,483 INFO L793 eck$LassoCheckResult]: Loop: 4#leENTRYtrue ~x := #in~x;~y := #in~y; 10#L42true assume ~x > 0 && ~y > 0; 11#L43true call #t~ret5 := le(~x - 1, ~y - 1);< 4#leENTRYtrue [2021-10-13 01:15:05,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:15:05,492 INFO L82 PathProgramCache]: Analyzing trace with hash 1205710, now seen corresponding path program 1 times [2021-10-13 01:15:05,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:15:05,506 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994140707] [2021-10-13 01:15:05,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:15:05,508 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:15:05,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:15:05,614 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:15:05,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:15:05,656 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:15:05,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:15:05,664 INFO L82 PathProgramCache]: Analyzing trace with hash 29909, now seen corresponding path program 1 times [2021-10-13 01:15:05,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:15:05,666 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180640103] [2021-10-13 01:15:05,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:15:05,667 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:15:05,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:15:05,688 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:15:05,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:15:05,710 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:15:05,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:15:05,723 INFO L82 PathProgramCache]: Analyzing trace with hash 1559568360, now seen corresponding path program 1 times [2021-10-13 01:15:05,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:15:05,724 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735296908] [2021-10-13 01:15:05,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:15:05,725 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:15:05,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:15:05,741 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:15:05,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:15:05,756 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:15:05,995 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:15:05,996 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:15:05,996 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:15:05,996 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:15:05,997 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 01:15:05,997 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:15:05,998 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:15:05,998 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:15:05,998 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeUserDefRec.c_Iteration1_Loop [2021-10-13 01:15:05,998 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:15:05,999 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:15:06,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:15:06,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:15:06,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:15:06,071 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:15:06,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:15:06,083 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:15:06,166 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:15:06,167 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 01:15:06,169 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:15:06,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9200919b-8670-45a1-a49a-7e822f801d9a/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:15:06,174 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9200919b-8670-45a1-a49a-7e822f801d9a/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:15:06,181 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:15:06,182 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:15:06,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9200919b-8670-45a1-a49a-7e822f801d9a/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-13 01:15:06,213 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:15:06,213 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {le_~y=0} Honda state: {le_~y=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 01:15:06,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9200919b-8670-45a1-a49a-7e822f801d9a/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-13 01:15:06,258 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:15:06,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9200919b-8670-45a1-a49a-7e822f801d9a/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:15:06,261 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9200919b-8670-45a1-a49a-7e822f801d9a/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:15:06,268 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:15:06,268 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:15:06,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9200919b-8670-45a1-a49a-7e822f801d9a/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-13 01:15:06,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9200919b-8670-45a1-a49a-7e822f801d9a/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-13 01:15:06,340 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:15:06,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9200919b-8670-45a1-a49a-7e822f801d9a/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:15:06,342 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9200919b-8670-45a1-a49a-7e822f801d9a/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:15:06,349 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 01:15:06,349 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:15:06,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9200919b-8670-45a1-a49a-7e822f801d9a/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-13 01:15:06,440 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 01:15:06,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9200919b-8670-45a1-a49a-7e822f801d9a/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-13 01:15:06,446 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:15:06,446 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:15:06,446 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:15:06,446 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:15:06,446 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:15:06,446 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:15:06,447 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:15:06,447 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:15:06,447 INFO L133 ssoRankerPreferences]: Filename of dumped script: LeUserDefRec.c_Iteration1_Loop [2021-10-13 01:15:06,447 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:15:06,447 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:15:06,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:15:06,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:15:06,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:15:06,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:15:06,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:15:06,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:15:06,569 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:15:06,574 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:15:06,575 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:15:06,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9200919b-8670-45a1-a49a-7e822f801d9a/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:15:06,577 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9200919b-8670-45a1-a49a-7e822f801d9a/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:15:06,583 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:15:06,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9200919b-8670-45a1-a49a-7e822f801d9a/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-13 01:15:06,594 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:15:06,595 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:15:06,595 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:15:06,595 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:15:06,595 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:15:06,597 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:15:06,598 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:15:06,628 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:15:06,632 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 01:15:06,632 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-13 01:15:06,634 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:15:06,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9200919b-8670-45a1-a49a-7e822f801d9a/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:15:06,637 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9200919b-8670-45a1-a49a-7e822f801d9a/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:15:06,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9200919b-8670-45a1-a49a-7e822f801d9a/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-13 01:15:06,669 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:15:06,669 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 01:15:06,670 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:15:06,671 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(le_#in~y) = 1*le_#in~y Supporting invariants [] [2021-10-13 01:15:06,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9200919b-8670-45a1-a49a-7e822f801d9a/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-13 01:15:06,698 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 01:15:06,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:15:06,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:15:06,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:15:06,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:15:06,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:15:06,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 01:15:06,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:15:06,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:15:06,937 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 [2021-10-13 01:15:06,938 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 14 states, 10 states have (on average 1.3) internal successors, (13), 10 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 1.6666666666666667) 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) [2021-10-13 01:15:07,088 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 14 states, 10 states have (on average 1.3) internal successors, (13), 10 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 1.6666666666666667) 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 32 states and 37 transitions. Complement of second has 12 states. [2021-10-13 01:15:07,089 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 [2021-10-13 01:15:07,091 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) [2021-10-13 01:15:07,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2021-10-13 01:15:07,094 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 4 letters. Loop has 3 letters. [2021-10-13 01:15:07,105 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:15:07,106 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 7 letters. Loop has 3 letters. [2021-10-13 01:15:07,107 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:15:07,107 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 4 letters. Loop has 6 letters. [2021-10-13 01:15:07,107 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:15:07,108 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 37 transitions. [2021-10-13 01:15:07,139 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 01:15:07,141 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 0 states and 0 transitions. [2021-10-13 01:15:07,143 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-13 01:15:07,143 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-13 01:15:07,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-13 01:15:07,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:15:07,144 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:15:07,144 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:15:07,144 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:15:07,145 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 01:15:07,145 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-13 01:15:07,146 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 01:15:07,146 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-13 01:15:07,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 01:15:07 BoogieIcfgContainer [2021-10-13 01:15:07,153 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 01:15:07,154 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9200919b-8670-45a1-a49a-7e822f801d9a/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-10-13 01:15:07,156 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:15:07,156 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:15:07,156 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:15:07,157 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:15:05" (3/4) ... [2021-10-13 01:15:07,160 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 01:15:07,160 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:15:07,162 INFO L168 Benchmark]: Toolchain (without parser) took 2502.00 ms. Allocated memory is still 130.0 MB. Free memory was 91.9 MB in the beginning and 101.8 MB in the end (delta: -9.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:15:07,163 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 130.0 MB. Free memory is still 108.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:15:07,164 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.75 ms. Allocated memory is still 130.0 MB. Free memory was 91.7 MB in the beginning and 105.6 MB in the end (delta: -14.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 01:15:07,164 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.59 ms. Allocated memory is still 130.0 MB. Free memory was 105.6 MB in the beginning and 104.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:15:07,165 INFO L168 Benchmark]: Boogie Preprocessor took 19.05 ms. Allocated memory is still 130.0 MB. Free memory was 104.4 MB in the beginning and 103.5 MB in the end (delta: 808.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:15:07,166 INFO L168 Benchmark]: RCFGBuilder took 318.83 ms. Allocated memory is still 130.0 MB. Free memory was 103.5 MB in the beginning and 95.6 MB in the end (delta: 8.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 01:15:07,167 INFO L168 Benchmark]: BuchiAutomizer took 1846.32 ms. Allocated memory is still 130.0 MB. Free memory was 95.2 MB in the beginning and 102.5 MB in the end (delta: -7.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:15:07,167 INFO L168 Benchmark]: Witness Printer took 4.69 ms. Allocated memory is still 130.0 MB. Free memory was 102.5 MB in the beginning and 101.8 MB in the end (delta: 636.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:15:07,171 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 130.0 MB. Free memory is still 108.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 271.75 ms. Allocated memory is still 130.0 MB. Free memory was 91.7 MB in the beginning and 105.6 MB in the end (delta: -14.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.59 ms. Allocated memory is still 130.0 MB. Free memory was 105.6 MB in the beginning and 104.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.05 ms. Allocated memory is still 130.0 MB. Free memory was 104.4 MB in the beginning and 103.5 MB in the end (delta: 808.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 318.83 ms. Allocated memory is still 130.0 MB. Free memory was 103.5 MB in the beginning and 95.6 MB in the end (delta: 8.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1846.32 ms. Allocated memory is still 130.0 MB. Free memory was 95.2 MB in the beginning and 102.5 MB in the end (delta: -7.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.69 ms. Allocated memory is still 130.0 MB. Free memory was 102.5 MB in the beginning and 101.8 MB in the end (delta: 636.2 kB). 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(y) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. 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: 10 SDtfs, 13 SDslu, 2 SDs, 0 SdLazy, 18 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 60.0ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax100 hnf100 lsp54 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 94ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 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! [2021-10-13 01:15:07,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9200919b-8670-45a1-a49a-7e822f801d9a/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...