./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-dietlibc/strchr_short.i --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_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/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_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-dietlibc/strchr_short.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/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_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/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 fa76bf6b20245863a3a0ece612004b4f99489c23 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 00:25:13,243 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:25:13,266 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:25:13,306 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:25:13,306 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:25:13,308 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:25:13,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:25:13,312 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:25:13,315 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:25:13,316 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:25:13,317 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:25:13,319 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:25:13,319 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:25:13,321 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:25:13,322 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:25:13,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:25:13,325 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:25:13,327 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:25:13,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:25:13,331 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:25:13,333 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:25:13,335 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:25:13,336 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:25:13,337 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:25:13,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:25:13,342 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:25:13,342 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:25:13,343 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:25:13,344 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:25:13,345 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:25:13,346 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:25:13,347 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:25:13,348 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:25:13,349 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:25:13,350 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:25:13,351 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:25:13,352 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:25:13,352 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:25:13,353 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:25:13,354 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:25:13,355 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:25:13,356 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-13 00:25:13,383 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:25:13,383 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:25:13,384 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:25:13,384 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:25:13,385 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:25:13,385 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:25:13,386 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:25:13,386 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:25:13,386 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:25:13,386 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:25:13,386 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:25:13,387 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:25:13,387 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:25:13,387 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:25:13,387 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:25:13,387 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:25:13,388 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:25:13,388 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:25:13,388 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:25:13,388 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:25:13,388 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:25:13,389 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:25:13,389 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:25:13,389 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:25:13,389 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:25:13,390 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:25:13,390 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:25:13,390 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:25:13,390 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:25:13,391 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:25:13,392 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_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa76bf6b20245863a3a0ece612004b4f99489c23 [2021-10-13 00:25:13,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:25:13,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:25:13,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:25:13,656 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:25:13,657 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:25:13,658 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/termination-dietlibc/strchr_short.i [2021-10-13 00:25:13,727 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/data/898e1eb04/92dcf0f860a0425488be113450088483/FLAG399fbf38c [2021-10-13 00:25:14,310 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:25:14,311 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/sv-benchmarks/c/termination-dietlibc/strchr_short.i [2021-10-13 00:25:14,326 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/data/898e1eb04/92dcf0f860a0425488be113450088483/FLAG399fbf38c [2021-10-13 00:25:14,570 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/data/898e1eb04/92dcf0f860a0425488be113450088483 [2021-10-13 00:25:14,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:25:14,574 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:25:14,576 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:25:14,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:25:14,580 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:25:14,581 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:25:14" (1/1) ... [2021-10-13 00:25:14,583 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4987947c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:25:14, skipping insertion in model container [2021-10-13 00:25:14,584 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:25:14" (1/1) ... [2021-10-13 00:25:14,591 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:25:14,629 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:25:14,931 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:25:14,939 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:25:14,974 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:25:15,004 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:25:15,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:25:15 WrapperNode [2021-10-13 00:25:15,005 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:25:15,006 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:25:15,006 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:25:15,006 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:25:15,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:25:15" (1/1) ... [2021-10-13 00:25:15,027 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:25:15" (1/1) ... [2021-10-13 00:25:15,047 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:25:15,048 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:25:15,048 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:25:15,048 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:25:15,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:25:15" (1/1) ... [2021-10-13 00:25:15,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:25:15" (1/1) ... [2021-10-13 00:25:15,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:25:15" (1/1) ... [2021-10-13 00:25:15,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:25:15" (1/1) ... [2021-10-13 00:25:15,065 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:25:15" (1/1) ... [2021-10-13 00:25:15,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:25:15" (1/1) ... [2021-10-13 00:25:15,071 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:25:15" (1/1) ... [2021-10-13 00:25:15,073 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:25:15,074 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:25:15,074 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:25:15,075 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:25:15,075 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:25:15" (1/1) ... [2021-10-13 00:25:15,083 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:25:15,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:25:15,109 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:25:15,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:25:15,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 00:25:15,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 00:25:15,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:25:15,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 00:25:15,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:25:15,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:25:15,519 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:25:15,519 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 00:25:15,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:25:15 BoogieIcfgContainer [2021-10-13 00:25:15,521 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:25:15,522 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:25:15,522 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:25:15,534 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:25:15,535 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:25:15,536 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:25:14" (1/3) ... [2021-10-13 00:25:15,537 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6df65484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:25:15, skipping insertion in model container [2021-10-13 00:25:15,537 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:25:15,537 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:25:15" (2/3) ... [2021-10-13 00:25:15,538 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6df65484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:25:15, skipping insertion in model container [2021-10-13 00:25:15,538 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:25:15,538 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:25:15" (3/3) ... [2021-10-13 00:25:15,540 INFO L389 chiAutomizerObserver]: Analyzing ICFG strchr_short.i [2021-10-13 00:25:15,597 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:25:15,598 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:25:15,598 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:25:15,598 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:25:15,599 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:25:15,599 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:25:15,599 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:25:15,599 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:25:15,613 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:25:15,631 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 00:25:15,631 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:25:15,631 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:25:15,635 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-13 00:25:15,635 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:25:15,635 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:25:15,636 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:25:15,637 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 00:25:15,637 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:25:15,637 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:25:15,638 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-13 00:25:15,638 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:25:15,645 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 7#L-1true havoc main_#res;havoc main_#t~nondet5, main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~nondet7, main_#t~ret8.base, main_#t~ret8.offset, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~the_int~0;main_~in_len~0 := main_#t~nondet5;havoc main_#t~nondet5; 10#L516true assume !(main_~in_len~0 < 1);call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~the_int~0 := main_#t~nondet7;havoc main_#t~nondet7;strchr_#in~t.base, strchr_#in~t.offset, strchr_#in~c := main_~in~0.base, main_~in~0.offset, main_~the_int~0;havoc strchr_#res.base, strchr_#res.offset;havoc strchr_#t~mem2, strchr_#t~mem3, strchr_#t~pre4.base, strchr_#t~pre4.offset, strchr_~t.base, strchr_~t.offset, strchr_~c, strchr_~ch~0;strchr_~t.base, strchr_~t.offset := strchr_#in~t.base, strchr_#in~t.offset;strchr_~c := strchr_#in~c;havoc strchr_~ch~0;strchr_~ch~0 := (if strchr_~c % 256 <= 127 then strchr_~c % 256 else strchr_~c % 256 - 256); 6#L509-2true [2021-10-13 00:25:15,645 INFO L793 eck$LassoCheckResult]: Loop: 6#L509-2true assume !false;call strchr_#t~mem2 := read~int(strchr_~t.base, strchr_~t.offset, 1); 12#L510true assume !(strchr_#t~mem2 == strchr_~ch~0);havoc strchr_#t~mem2;call strchr_#t~mem3 := read~int(strchr_~t.base, strchr_~t.offset, 1); 9#L510-2true assume !(0 == strchr_#t~mem3);havoc strchr_#t~mem3;strchr_#t~pre4.base, strchr_#t~pre4.offset := strchr_~t.base, 1 + strchr_~t.offset;strchr_~t.base, strchr_~t.offset := strchr_~t.base, 1 + strchr_~t.offset;havoc strchr_#t~pre4.base, strchr_#t~pre4.offset; 6#L509-2true [2021-10-13 00:25:15,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:25:15,651 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2021-10-13 00:25:15,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:25:15,661 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668501646] [2021-10-13 00:25:15,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:25:15,662 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:25:15,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:25:15,767 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:25:15,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:25:15,805 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:25:15,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:25:15,808 INFO L82 PathProgramCache]: Analyzing trace with hash 44851, now seen corresponding path program 1 times [2021-10-13 00:25:15,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:25:15,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216986294] [2021-10-13 00:25:15,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:25:15,809 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:25:15,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:25:15,818 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:25:15,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:25:15,826 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:25:15,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:25:15,828 INFO L82 PathProgramCache]: Analyzing trace with hash 889574320, now seen corresponding path program 1 times [2021-10-13 00:25:15,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:25:15,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897194591] [2021-10-13 00:25:15,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:25:15,829 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:25:15,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:25:15,856 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:25:15,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:25:15,930 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:25:16,477 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:25:16,478 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:25:16,478 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:25:16,478 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:25:16,478 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:25:16,479 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:25:16,479 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:25:16,479 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:25:16,479 INFO L133 ssoRankerPreferences]: Filename of dumped script: strchr_short.i_Iteration1_Lasso [2021-10-13 00:25:16,479 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:25:16,479 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:25:16,502 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 00:25:16,507 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 00:25:16,510 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 00:25:16,512 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 00:25:16,514 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 00:25:16,517 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 00:25:16,521 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 00:25:16,523 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 00:25:16,526 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 00:25:16,529 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 00:25:16,938 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 00:25:16,942 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 00:25:16,945 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 00:25:16,949 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 00:25:17,479 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:25:17,484 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:25:17,488 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:25:17,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:25:17,490 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:25:17,503 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 00:25:17,515 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:25:17,515 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:25:17,516 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:25:17,516 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:25:17,516 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:25:17,519 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:25:17,519 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:25:17,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-13 00:25:17,526 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:25:17,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:25:17,556 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:25:17,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:25:17,561 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:25:17,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-13 00:25:17,568 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 00:25:17,576 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:25:17,576 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:25:17,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:25:17,577 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:25:17,577 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:25:17,577 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:25:17,577 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:25:17,587 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:25:17,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:25:17,610 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:25:17,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:25:17,612 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:25:17,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-13 00:25:17,614 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 00:25:17,623 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:25:17,623 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:25:17,623 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:25:17,623 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:25:17,623 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:25:17,631 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:25:17,631 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:25:17,655 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:25:17,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:25:17,680 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:25:17,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:25:17,681 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:25:17,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-13 00:25:17,683 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 00:25:17,691 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:25:17,691 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:25:17,691 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:25:17,691 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:25:17,691 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:25:17,692 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:25:17,692 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:25:17,693 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:25:17,718 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-10-13 00:25:17,718 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:25:17,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:25:17,720 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:25:17,741 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 00:25:17,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-13 00:25:17,749 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:25:17,749 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:25:17,749 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:25:17,749 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:25:17,749 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:25:17,750 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:25:17,750 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:25:17,751 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:25:17,776 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-10-13 00:25:17,776 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:25:17,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:25:17,777 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:25:17,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-13 00:25:17,780 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:25:17,788 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:25:17,788 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:25:17,788 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:25:17,788 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:25:17,795 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:25:17,795 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:25:17,799 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:25:17,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-13 00:25:17,821 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:25:17,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:25:17,822 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:25:17,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-13 00:25:17,827 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:25:17,836 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:25:17,836 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:25:17,836 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:25:17,836 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:25:17,836 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:25:17,837 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:25:17,837 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:25:17,839 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:25:17,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-13 00:25:17,862 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:25:17,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:25:17,863 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:25:17,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-13 00:25:17,865 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 00:25:17,873 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:25:17,873 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:25:17,873 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:25:17,873 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:25:17,873 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:25:17,879 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:25:17,879 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:25:17,894 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:25:17,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-13 00:25:17,918 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:25:17,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:25:17,919 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:25:17,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-13 00:25:17,922 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:25:17,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:25:17,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:25:17,930 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:25:17,930 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:25:17,934 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:25:17,934 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:25:17,967 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:25:17,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-13 00:25:17,993 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:25:17,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:25:17,994 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:25:17,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-13 00:25:17,996 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 00:25:18,004 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:25:18,005 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:25:18,005 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:25:18,005 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:25:18,014 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:25:18,014 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:25:18,035 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:25:18,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-13 00:25:18,059 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:25:18,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:25:18,060 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:25:18,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-13 00:25:18,062 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 00:25:18,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:25:18,070 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:25:18,070 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:25:18,070 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:25:18,076 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:25:18,077 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:25:18,111 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:25:18,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-13 00:25:18,136 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:25:18,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:25:18,137 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:25:18,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-13 00:25:18,141 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 00:25:18,150 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:25:18,150 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:25:18,150 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:25:18,151 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:25:18,166 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:25:18,166 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:25:18,195 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:25:18,225 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-10-13 00:25:18,226 INFO L444 ModelExtractionUtils]: 15 out of 25 variables were initially zero. Simplification set additionally 7 variables to zero. [2021-10-13 00:25:18,227 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:25:18,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:25:18,245 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:25:18,252 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:25:18,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-13 00:25:18,274 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-13 00:25:18,274 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:25:18,275 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_strchr_~t.base)_1, ULTIMATE.start_strchr_~t.offset) = 1*v_rep(select #length ULTIMATE.start_strchr_~t.base)_1 - 1*ULTIMATE.start_strchr_~t.offset Supporting invariants [] [2021-10-13 00:25:18,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-13 00:25:18,332 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2021-10-13 00:25:18,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:25:18,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:25:18,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:25:18,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:25:18,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:25:18,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 00:25:18,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:25:18,492 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 00:25:18,512 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-13 00:25:18,514 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:25:18,573 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 27 states and 33 transitions. Complement of second has 5 states. [2021-10-13 00:25:18,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 00:25:18,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:25:18,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2021-10-13 00:25:18,580 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 3 letters. Loop has 3 letters. [2021-10-13 00:25:18,583 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:25:18,583 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 6 letters. Loop has 3 letters. [2021-10-13 00:25:18,583 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:25:18,583 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 3 letters. Loop has 6 letters. [2021-10-13 00:25:18,584 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:25:18,585 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 33 transitions. [2021-10-13 00:25:18,588 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:25:18,590 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 0 states and 0 transitions. [2021-10-13 00:25:18,591 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-13 00:25:18,591 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-13 00:25:18,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-13 00:25:18,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:25:18,592 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:25:18,592 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:25:18,592 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:25:18,592 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:25:18,592 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-13 00:25:18,592 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:25:18,592 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-13 00:25:18,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:25:18 BoogieIcfgContainer [2021-10-13 00:25:18,599 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:25:18,600 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:25:18,600 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:25:18,600 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:25:18,601 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:25:15" (3/4) ... [2021-10-13 00:25:18,604 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:25:18,604 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:25:18,606 INFO L168 Benchmark]: Toolchain (without parser) took 4030.30 ms. Allocated memory was 111.1 MB in the beginning and 151.0 MB in the end (delta: 39.8 MB). Free memory was 87.5 MB in the beginning and 74.6 MB in the end (delta: 12.9 MB). Peak memory consumption was 51.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:25:18,607 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 111.1 MB. Free memory was 68.9 MB in the beginning and 68.8 MB in the end (delta: 63.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:25:18,608 INFO L168 Benchmark]: CACSL2BoogieTranslator took 428.99 ms. Allocated memory is still 111.1 MB. Free memory was 87.5 MB in the beginning and 81.9 MB in the end (delta: 5.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:25:18,608 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.71 ms. Allocated memory is still 111.1 MB. Free memory was 81.9 MB in the beginning and 80.0 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:25:18,609 INFO L168 Benchmark]: Boogie Preprocessor took 25.66 ms. Allocated memory is still 111.1 MB. Free memory was 80.0 MB in the beginning and 78.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:25:18,610 INFO L168 Benchmark]: RCFGBuilder took 447.15 ms. Allocated memory is still 111.1 MB. Free memory was 78.8 MB in the beginning and 69.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:25:18,610 INFO L168 Benchmark]: BuchiAutomizer took 3076.93 ms. Allocated memory was 111.1 MB in the beginning and 151.0 MB in the end (delta: 39.8 MB). Free memory was 69.3 MB in the beginning and 74.8 MB in the end (delta: -5.5 MB). Peak memory consumption was 36.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:25:18,611 INFO L168 Benchmark]: Witness Printer took 4.45 ms. Allocated memory is still 151.0 MB. Free memory was 74.8 MB in the beginning and 74.6 MB in the end (delta: 232.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:25:18,619 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 111.1 MB. Free memory was 68.9 MB in the beginning and 68.8 MB in the end (delta: 63.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 428.99 ms. Allocated memory is still 111.1 MB. Free memory was 87.5 MB in the beginning and 81.9 MB in the end (delta: 5.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.71 ms. Allocated memory is still 111.1 MB. Free memory was 81.9 MB in the beginning and 80.0 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.66 ms. Allocated memory is still 111.1 MB. Free memory was 80.0 MB in the beginning and 78.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 447.15 ms. Allocated memory is still 111.1 MB. Free memory was 78.8 MB in the beginning and 69.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3076.93 ms. Allocated memory was 111.1 MB in the beginning and 151.0 MB in the end (delta: 39.8 MB). Free memory was 69.3 MB in the beginning and 74.8 MB in the end (delta: -5.5 MB). Peak memory consumption was 36.6 MB. Max. memory is 16.1 GB. * Witness Printer took 4.45 ms. Allocated memory is still 151.0 MB. Free memory was 74.8 MB in the beginning and 74.6 MB in the end (delta: 232.0 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 unknown-#length-unknown[t] + -1 * t and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. 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: 11 SDtfs, 20 SDslu, 5 SDs, 0 SdLazy, 7 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.0ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital147 mio100 ax100 hnf100 lsp111 ukn111 mio100 lsp34 div135 bol100 ite100 ukn100 eq159 hnf73 smp74 dnf281 smp56 tf100 neg93 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 23ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-13 00:25:18,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-13 00:25:18,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00ff2e20-4b86-4ba5-a9ac-cac8519037b8/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...