./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/cstrcat_diffterm_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrcat_diffterm_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY --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 ece2db0c2e485d2e7ebf6b014e7d50fbe2c0e7d33a07f2ac4123e51b956ac73d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 07:38:21,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 07:38:21,173 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 07:38:21,215 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 07:38:21,216 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 07:38:21,218 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 07:38:21,220 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 07:38:21,223 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 07:38:21,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 07:38:21,227 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 07:38:21,229 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 07:38:21,230 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 07:38:21,231 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 07:38:21,233 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 07:38:21,235 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 07:38:21,237 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 07:38:21,238 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 07:38:21,240 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 07:38:21,243 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 07:38:21,246 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 07:38:21,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 07:38:21,251 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 07:38:21,253 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 07:38:21,254 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 07:38:21,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 07:38:21,260 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 07:38:21,260 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 07:38:21,261 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 07:38:21,262 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 07:38:21,264 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 07:38:21,264 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 07:38:21,265 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 07:38:21,267 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 07:38:21,268 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 07:38:21,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 07:38:21,270 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 07:38:21,271 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 07:38:21,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 07:38:21,273 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 07:38:21,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 07:38:21,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 07:38:21,276 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-07 07:38:21,308 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 07:38:21,308 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 07:38:21,309 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 07:38:21,310 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 07:38:21,311 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 07:38:21,312 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 07:38:21,312 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 07:38:21,313 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-07 07:38:21,313 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-07 07:38:21,313 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-07 07:38:21,314 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-07 07:38:21,314 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-07 07:38:21,315 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-07 07:38:21,315 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 07:38:21,316 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 07:38:21,316 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 07:38:21,317 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 07:38:21,317 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-07 07:38:21,317 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-07 07:38:21,317 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-07 07:38:21,318 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 07:38:21,318 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-07 07:38:21,318 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 07:38:21,318 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-07 07:38:21,318 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 07:38:21,319 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 07:38:21,319 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 07:38:21,319 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 07:38:21,319 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 07:38:21,320 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-07 07:38:21,320 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_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ece2db0c2e485d2e7ebf6b014e7d50fbe2c0e7d33a07f2ac4123e51b956ac73d [2021-11-07 07:38:21,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 07:38:21,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 07:38:21,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 07:38:21,657 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 07:38:21,657 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 07:38:21,658 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/termination-15/cstrcat_diffterm_alloca.i [2021-11-07 07:38:21,755 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/data/5b77bf949/91c14bbf5cfb4f659624755cfd04dd98/FLAG981d7fe56 [2021-11-07 07:38:22,309 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 07:38:22,310 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/sv-benchmarks/c/termination-15/cstrcat_diffterm_alloca.i [2021-11-07 07:38:22,322 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/data/5b77bf949/91c14bbf5cfb4f659624755cfd04dd98/FLAG981d7fe56 [2021-11-07 07:38:22,610 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/data/5b77bf949/91c14bbf5cfb4f659624755cfd04dd98 [2021-11-07 07:38:22,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 07:38:22,614 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 07:38:22,616 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 07:38:22,616 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 07:38:22,620 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 07:38:22,621 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:38:22" (1/1) ... [2021-11-07 07:38:22,622 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fdd123d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:38:22, skipping insertion in model container [2021-11-07 07:38:22,623 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:38:22" (1/1) ... [2021-11-07 07:38:22,631 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 07:38:22,665 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 07:38:23,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:38:23,118 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 07:38:23,164 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:38:23,199 INFO L208 MainTranslator]: Completed translation [2021-11-07 07:38:23,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:38:23 WrapperNode [2021-11-07 07:38:23,199 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 07:38:23,201 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 07:38:23,201 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 07:38:23,201 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 07:38:23,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:38:23" (1/1) ... [2021-11-07 07:38:23,226 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:38:23" (1/1) ... [2021-11-07 07:38:23,249 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 07:38:23,250 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 07:38:23,250 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 07:38:23,250 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 07:38:23,259 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:38:23" (1/1) ... [2021-11-07 07:38:23,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:38:23" (1/1) ... [2021-11-07 07:38:23,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:38:23" (1/1) ... [2021-11-07 07:38:23,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:38:23" (1/1) ... [2021-11-07 07:38:23,268 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:38:23" (1/1) ... [2021-11-07 07:38:23,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:38:23" (1/1) ... [2021-11-07 07:38:23,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:38:23" (1/1) ... [2021-11-07 07:38:23,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 07:38:23,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 07:38:23,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 07:38:23,277 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 07:38:23,278 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:38:23" (1/1) ... [2021-11-07 07:38:23,287 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:38:23,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:38:23,314 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:38:23,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-07 07:38:23,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 07:38:23,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 07:38:23,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 07:38:23,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 07:38:23,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 07:38:23,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 07:38:23,622 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 07:38:23,622 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-11-07 07:38:23,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:38:23 BoogieIcfgContainer [2021-11-07 07:38:23,625 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 07:38:23,626 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-07 07:38:23,626 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-07 07:38:23,631 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-07 07:38:23,632 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 07:38:23,632 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.11 07:38:22" (1/3) ... [2021-11-07 07:38:23,634 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7833145c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 07:38:23, skipping insertion in model container [2021-11-07 07:38:23,634 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 07:38:23,634 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:38:23" (2/3) ... [2021-11-07 07:38:23,635 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7833145c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 07:38:23, skipping insertion in model container [2021-11-07 07:38:23,635 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 07:38:23,635 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:38:23" (3/3) ... [2021-11-07 07:38:23,637 INFO L389 chiAutomizerObserver]: Analyzing ICFG cstrcat_diffterm_alloca.i [2021-11-07 07:38:23,689 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-07 07:38:23,689 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-07 07:38:23,689 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-07 07:38:23,690 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-07 07:38:23,690 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-07 07:38:23,690 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-07 07:38:23,690 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-07 07:38:23,690 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-07 07:38:23,722 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 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) [2021-11-07 07:38:23,763 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-11-07 07:38:23,764 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 07:38:23,764 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 07:38:23,773 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-07 07:38:23,773 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-07 07:38:23,773 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-07 07:38:23,774 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 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) [2021-11-07 07:38:23,791 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-11-07 07:38:23,791 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 07:38:23,792 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 07:38:23,792 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-07 07:38:23,792 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-07 07:38:23,799 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 7#L-1true havoc main_#res;havoc main_#t~nondet210, main_#t~nondet211, main_#t~nondet212, main_#t~malloc213.base, main_#t~malloc213.offset, main_#t~malloc214.base, main_#t~malloc214.offset, main_#t~ret215.base, main_#t~ret215.offset, main_~length1~0, main_~length2~0, main_~length3~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet210;havoc main_#t~nondet210;main_~length2~0 := main_#t~nondet211;havoc main_#t~nondet211;main_~length3~0 := main_#t~nondet212;havoc main_#t~nondet212; 12#L377true assume !(main_~length1~0 < 1); 15#L377-2true assume !(main_~length2~0 < 2); 8#L380-1true assume !(main_~length3~0 < 1); 11#L383-1true assume !(main_~length2~0 - main_~length3~0 < main_~length1~0 || main_~length3~0 > main_~length2~0);call main_#t~malloc213.base, main_#t~malloc213.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc213.base, main_#t~malloc213.offset;call main_#t~malloc214.base, main_#t~malloc214.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc214.base, main_#t~malloc214.offset;call write~int(49, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(49, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length3~0 - 1), 1);cstrcat_#in~s1.base, cstrcat_#in~s1.offset, cstrcat_#in~s2.base, cstrcat_#in~s2.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrcat_#res.base, cstrcat_#res.offset;havoc cstrcat_#t~post206.base, cstrcat_#t~post206.offset, cstrcat_#t~mem205, cstrcat_#t~post207.base, cstrcat_#t~post207.offset, cstrcat_#t~post208.base, cstrcat_#t~post208.offset, cstrcat_#t~mem209, cstrcat_~s1.base, cstrcat_~s1.offset, cstrcat_~s2.base, cstrcat_~s2.offset, cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s1.base, cstrcat_~s1.offset := cstrcat_#in~s1.base, cstrcat_#in~s1.offset;cstrcat_~s2.base, cstrcat_~s2.offset := cstrcat_#in~s2.base, cstrcat_#in~s2.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_~s1.base, cstrcat_~s1.offset; 3#L367-3true [2021-11-07 07:38:23,800 INFO L793 eck$LassoCheckResult]: Loop: 3#L367-3true call cstrcat_#t~mem205 := read~int(cstrcat_~s~0.base, cstrcat_~s~0.offset, 1); 16#L367-1true assume !!(49 != cstrcat_#t~mem205);havoc cstrcat_#t~mem205;cstrcat_#t~post206.base, cstrcat_#t~post206.offset := cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_#t~post206.base, 1 + cstrcat_#t~post206.offset;havoc cstrcat_#t~post206.base, cstrcat_#t~post206.offset; 3#L367-3true [2021-11-07 07:38:23,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:38:23,806 INFO L85 PathProgramCache]: Analyzing trace with hash 889572367, now seen corresponding path program 1 times [2021-11-07 07:38:23,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:38:23,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321445465] [2021-11-07 07:38:23,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:38:23,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:38:23,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:38:23,988 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 07:38:24,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:38:24,051 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 07:38:24,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:38:24,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1926, now seen corresponding path program 1 times [2021-11-07 07:38:24,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:38:24,075 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560225537] [2021-11-07 07:38:24,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:38:24,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:38:24,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:38:24,083 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 07:38:24,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:38:24,090 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 07:38:24,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:38:24,092 INFO L85 PathProgramCache]: Analyzing trace with hash 180553748, now seen corresponding path program 1 times [2021-11-07 07:38:24,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:38:24,093 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204670798] [2021-11-07 07:38:24,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:38:24,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:38:24,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:38:24,167 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 07:38:24,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:38:24,208 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 07:38:25,129 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 07:38:25,130 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 07:38:25,130 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 07:38:25,130 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 07:38:25,131 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-07 07:38:25,131 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:38:25,131 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 07:38:25,131 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 07:38:25,131 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcat_diffterm_alloca.i_Iteration1_Lasso [2021-11-07 07:38:25,131 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 07:38:25,132 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 07:38:25,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:38:25,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:38:25,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:38:25,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:38:25,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:38:25,549 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:38:25,560 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:38:25,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:38:25,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:38:25,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:38:25,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:38:25,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:38:25,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:38:25,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:38:25,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:38:25,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:38:25,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:38:25,597 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:38:25,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:38:26,024 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 07:38:26,029 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-07 07:38:26,031 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:38:26,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:38:26,033 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:38:26,042 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:38:26,052 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:38:26,052 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:38:26,053 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:38:26,053 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:38:26,053 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:38:26,055 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:38:26,056 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:38:26,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-07 07:38:26,074 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:38:26,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-07 07:38:26,112 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:38:26,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:38:26,115 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:38:26,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-07 07:38:26,128 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:38:26,142 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:38:26,142 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:38:26,142 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:38:26,142 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:38:26,146 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 07:38:26,146 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 07:38:26,159 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:38:26,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-07 07:38:26,195 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:38:26,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:38:26,197 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:38:26,205 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:38:26,214 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:38:26,214 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:38:26,215 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:38:26,215 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:38:26,215 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:38:26,216 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:38:26,216 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:38:26,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-07 07:38:26,229 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:38:26,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-07 07:38:26,263 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:38:26,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:38:26,264 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:38:26,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-07 07:38:26,265 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:38:26,272 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:38:26,273 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:38:26,273 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:38:26,273 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:38:26,273 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:38:26,274 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:38:26,274 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:38:26,288 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:38:26,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-07 07:38:26,310 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:38:26,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:38:26,313 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:38:26,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-07 07:38:26,317 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:38:26,324 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:38:26,324 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:38:26,324 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:38:26,324 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:38:26,331 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 07:38:26,332 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 07:38:26,344 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:38:26,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-07 07:38:26,375 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:38:26,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:38:26,376 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:38:26,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-07 07:38:26,378 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:38:26,385 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:38:26,385 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:38:26,385 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:38:26,385 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:38:26,388 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 07:38:26,388 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 07:38:26,396 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:38:26,415 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-11-07 07:38:26,416 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:38:26,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:38:26,417 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:38:26,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-07 07:38:26,420 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:38:26,427 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:38:26,427 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:38:26,427 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:38:26,427 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:38:26,435 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 07:38:26,435 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 07:38:26,448 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:38:26,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-07 07:38:26,480 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:38:26,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:38:26,481 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:38:26,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-07 07:38:26,484 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:38:26,491 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:38:26,491 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:38:26,492 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:38:26,492 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:38:26,494 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 07:38:26,494 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 07:38:26,521 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:38:26,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-07 07:38:26,551 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:38:26,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:38:26,552 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:38:26,554 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:38:26,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-07 07:38:26,562 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:38:26,562 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:38:26,562 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:38:26,562 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:38:26,575 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 07:38:26,576 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 07:38:26,604 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-07 07:38:26,702 INFO L443 ModelExtractionUtils]: Simplification made 22 calls to the SMT solver. [2021-11-07 07:38:26,702 INFO L444 ModelExtractionUtils]: 13 out of 49 variables were initially zero. Simplification set additionally 33 variables to zero. [2021-11-07 07:38:26,704 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:38:26,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:38:26,709 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:38:26,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-07 07:38:26,750 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-07 07:38:26,773 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-07 07:38:26,773 INFO L513 LassoAnalysis]: Proved termination. [2021-11-07 07:38:26,773 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc214.base)_1, ULTIMATE.start_cstrcat_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc214.base)_1 - 1*ULTIMATE.start_cstrcat_~s~0.offset Supporting invariants [] [2021-11-07 07:38:26,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-07 07:38:26,882 INFO L297 tatePredicateManager]: 8 out of 9 supporting invariants were superfluous and have been removed [2021-11-07 07:38:26,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:38:26,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:38:26,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-07 07:38:26,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:38:26,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:38:26,998 WARN L261 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 07:38:26,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:38:27,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:38:27,053 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-07 07:38:27,054 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 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 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2021-11-07 07:38:27,138 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 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 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 32 states and 42 transitions. Complement of second has 8 states. [2021-11-07 07:38:27,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-07 07:38:27,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2021-11-07 07:38:27,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2021-11-07 07:38:27,148 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 6 letters. Loop has 2 letters. [2021-11-07 07:38:27,149 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:38:27,149 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 8 letters. Loop has 2 letters. [2021-11-07 07:38:27,150 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:38:27,150 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 6 letters. Loop has 4 letters. [2021-11-07 07:38:27,150 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:38:27,151 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 42 transitions. [2021-11-07 07:38:27,159 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-07 07:38:27,168 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 0 states and 0 transitions. [2021-11-07 07:38:27,169 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-07 07:38:27,169 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-07 07:38:27,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-07 07:38:27,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:38:27,171 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 07:38:27,171 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 07:38:27,171 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 07:38:27,171 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-07 07:38:27,171 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-07 07:38:27,171 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-07 07:38:27,172 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-07 07:38:27,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.11 07:38:27 BoogieIcfgContainer [2021-11-07 07:38:27,178 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-07 07:38:27,178 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 07:38:27,178 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 07:38:27,178 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 07:38:27,179 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:38:23" (3/4) ... [2021-11-07 07:38:27,182 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 07:38:27,182 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 07:38:27,185 INFO L168 Benchmark]: Toolchain (without parser) took 4568.96 ms. Allocated memory was 94.4 MB in the beginning and 117.4 MB in the end (delta: 23.1 MB). Free memory was 58.9 MB in the beginning and 59.9 MB in the end (delta: -965.4 kB). Peak memory consumption was 22.2 MB. Max. memory is 16.1 GB. [2021-11-07 07:38:27,186 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 94.4 MB. Free memory was 64.5 MB in the beginning and 64.5 MB in the end (delta: 29.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:38:27,187 INFO L168 Benchmark]: CACSL2BoogieTranslator took 583.75 ms. Allocated memory is still 94.4 MB. Free memory was 58.8 MB in the beginning and 63.0 MB in the end (delta: -4.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 07:38:27,189 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.75 ms. Allocated memory is still 94.4 MB. Free memory was 63.0 MB in the beginning and 60.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 07:38:27,194 INFO L168 Benchmark]: Boogie Preprocessor took 25.91 ms. Allocated memory is still 94.4 MB. Free memory was 60.9 MB in the beginning and 59.9 MB in the end (delta: 965.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:38:27,195 INFO L168 Benchmark]: RCFGBuilder took 348.55 ms. Allocated memory is still 94.4 MB. Free memory was 59.5 MB in the beginning and 49.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 07:38:27,195 INFO L168 Benchmark]: BuchiAutomizer took 3551.55 ms. Allocated memory was 94.4 MB in the beginning and 117.4 MB in the end (delta: 23.1 MB). Free memory was 49.0 MB in the beginning and 60.8 MB in the end (delta: -11.8 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. [2021-11-07 07:38:27,196 INFO L168 Benchmark]: Witness Printer took 4.14 ms. Allocated memory is still 117.4 MB. Free memory was 60.8 MB in the beginning and 59.9 MB in the end (delta: 931.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:38:27,204 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 94.4 MB. Free memory was 64.5 MB in the beginning and 64.5 MB in the end (delta: 29.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 583.75 ms. Allocated memory is still 94.4 MB. Free memory was 58.8 MB in the beginning and 63.0 MB in the end (delta: -4.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.75 ms. Allocated memory is still 94.4 MB. Free memory was 63.0 MB in the beginning and 60.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.91 ms. Allocated memory is still 94.4 MB. Free memory was 60.9 MB in the beginning and 59.9 MB in the end (delta: 965.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 348.55 ms. Allocated memory is still 94.4 MB. Free memory was 59.5 MB in the beginning and 49.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3551.55 ms. Allocated memory was 94.4 MB in the beginning and 117.4 MB in the end (delta: 23.1 MB). Free memory was 49.0 MB in the beginning and 60.8 MB in the end (delta: -11.8 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. * Witness Printer took 4.14 ms. Allocated memory is still 117.4 MB. Free memory was 60.8 MB in the beginning and 59.9 MB in the end (delta: 931.6 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[__builtin_alloca(length2 * sizeof(char))] + -1 * s and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.0s. 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: 16 SDtfs, 17 SDslu, 7 SDs, 0 SdLazy, 7 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital187 mio100 ax100 hnf100 lsp96 ukn78 mio100 lsp50 div100 bol100 ite100 ukn100 eq186 hnf88 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 47ms 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! [2021-11-07 07:38:27,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-07 07:38:27,468 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_989efb62-daf1-48e8-aa0f-82f77c42a455/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE