./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/PastaB15.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/PastaB15.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3 --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 3ccb58682df62cf013193e768e6367e3efc261e2 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 20:05:14,250 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 20:05:14,253 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 20:05:14,300 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 20:05:14,301 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 20:05:14,302 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 20:05:14,304 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 20:05:14,306 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 20:05:14,309 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 20:05:14,310 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 20:05:14,311 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 20:05:14,313 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 20:05:14,314 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 20:05:14,316 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 20:05:14,318 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 20:05:14,320 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 20:05:14,321 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 20:05:14,323 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 20:05:14,326 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 20:05:14,329 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 20:05:14,332 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 20:05:14,334 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 20:05:14,336 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 20:05:14,337 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 20:05:14,342 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 20:05:14,342 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 20:05:14,343 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 20:05:14,344 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 20:05:14,345 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 20:05:14,347 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 20:05:14,348 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 20:05:14,349 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 20:05:14,350 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 20:05:14,352 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 20:05:14,353 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 20:05:14,354 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 20:05:14,355 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 20:05:14,355 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 20:05:14,356 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 20:05:14,357 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 20:05:14,358 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 20:05:14,362 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-15 20:05:14,414 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 20:05:14,415 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 20:05:14,416 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 20:05:14,416 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 20:05:14,417 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 20:05:14,418 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 20:05:14,418 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 20:05:14,418 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-15 20:05:14,419 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-15 20:05:14,419 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-15 20:05:14,420 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-15 20:05:14,421 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-15 20:05:14,421 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-15 20:05:14,421 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 20:05:14,421 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-15 20:05:14,422 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 20:05:14,422 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 20:05:14,422 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-15 20:05:14,422 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-15 20:05:14,423 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-15 20:05:14,423 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 20:05:14,423 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-15 20:05:14,423 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 20:05:14,424 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-15 20:05:14,424 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 20:05:14,424 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 20:05:14,427 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 20:05:14,427 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 20:05:14,427 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 20:05:14,429 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-15 20:05:14,429 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_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ccb58682df62cf013193e768e6367e3efc261e2 [2021-10-15 20:05:14,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 20:05:14,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 20:05:14,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 20:05:14,737 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 20:05:14,738 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 20:05:14,739 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/termination-restricted-15/PastaB15.c [2021-10-15 20:05:14,812 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/data/58efd4cd7/cbb218332cb349fe8515a998a51f682a/FLAG62d8095a5 [2021-10-15 20:05:15,345 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 20:05:15,346 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/sv-benchmarks/c/termination-restricted-15/PastaB15.c [2021-10-15 20:05:15,359 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/data/58efd4cd7/cbb218332cb349fe8515a998a51f682a/FLAG62d8095a5 [2021-10-15 20:05:15,720 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/data/58efd4cd7/cbb218332cb349fe8515a998a51f682a [2021-10-15 20:05:15,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 20:05:15,724 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 20:05:15,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 20:05:15,726 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 20:05:15,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 20:05:15,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:05:15" (1/1) ... [2021-10-15 20:05:15,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7acb95cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:05:15, skipping insertion in model container [2021-10-15 20:05:15,740 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:05:15" (1/1) ... [2021-10-15 20:05:15,747 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 20:05:15,757 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 20:05:15,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 20:05:15,881 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 20:05:15,896 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 20:05:15,926 INFO L208 MainTranslator]: Completed translation [2021-10-15 20:05:15,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:05:15 WrapperNode [2021-10-15 20:05:15,927 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 20:05:15,929 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 20:05:15,929 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 20:05:15,929 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 20:05:15,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:05:15" (1/1) ... [2021-10-15 20:05:15,945 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:05:15" (1/1) ... [2021-10-15 20:05:15,967 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 20:05:15,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 20:05:15,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 20:05:15,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 20:05:15,977 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:05:15" (1/1) ... [2021-10-15 20:05:15,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:05:15" (1/1) ... [2021-10-15 20:05:15,979 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:05:15" (1/1) ... [2021-10-15 20:05:15,980 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:05:15" (1/1) ... [2021-10-15 20:05:15,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:05:15" (1/1) ... [2021-10-15 20:05:15,987 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:05:15" (1/1) ... [2021-10-15 20:05:15,989 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:05:15" (1/1) ... [2021-10-15 20:05:15,990 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 20:05:15,992 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 20:05:15,992 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 20:05:15,993 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 20:05:15,994 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:05:15" (1/1) ... [2021-10-15 20:05:16,002 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:05:16,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:05:16,033 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:05:16,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-15 20:05:16,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 20:05:16,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 20:05:16,255 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 20:05:16,256 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-15 20:05:16,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:05:16 BoogieIcfgContainer [2021-10-15 20:05:16,259 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 20:05:16,263 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-15 20:05:16,263 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-15 20:05:16,266 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-15 20:05:16,267 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 20:05:16,267 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.10 08:05:15" (1/3) ... [2021-10-15 20:05:16,268 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5973e05c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 08:05:16, skipping insertion in model container [2021-10-15 20:05:16,268 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 20:05:16,269 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:05:15" (2/3) ... [2021-10-15 20:05:16,269 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5973e05c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 08:05:16, skipping insertion in model container [2021-10-15 20:05:16,269 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 20:05:16,269 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:05:16" (3/3) ... [2021-10-15 20:05:16,271 INFO L389 chiAutomizerObserver]: Analyzing ICFG PastaB15.c [2021-10-15 20:05:16,319 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-15 20:05:16,319 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-15 20:05:16,319 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-15 20:05:16,320 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-15 20:05:16,320 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-15 20:05:16,320 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-15 20:05:16,320 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-15 20:05:16,320 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-15 20:05:16,332 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 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) [2021-10-15 20:05:16,347 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-15 20:05:16,347 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:05:16,347 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:05:16,353 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-15 20:05:16,353 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-15 20:05:16,353 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-15 20:05:16,354 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 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) [2021-10-15 20:05:16,355 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-15 20:05:16,355 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:05:16,355 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:05:16,355 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-15 20:05:16,355 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-15 20:05:16,362 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 7#L14-3true [2021-10-15 20:05:16,362 INFO L793 eck$LassoCheckResult]: Loop: 7#L14-3true assume !!(main_~x~0 == main_~y~0 && main_~x~0 > main_~z~0); 8#L14-2true assume !(main_~y~0 > main_~z~0); 7#L14-3true [2021-10-15 20:05:16,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:05:16,367 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-15 20:05:16,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:05:16,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756066218] [2021-10-15 20:05:16,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:05:16,375 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:05:16,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:05:16,440 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:05:16,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:05:16,459 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:05:16,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:05:16,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1288, now seen corresponding path program 1 times [2021-10-15 20:05:16,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:05:16,463 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140519038] [2021-10-15 20:05:16,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:05:16,464 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:05:16,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:05:16,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:05:16,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:05:16,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140519038] [2021-10-15 20:05:16,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140519038] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:05:16,529 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:05:16,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-15 20:05:16,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637760524] [2021-10-15 20:05:16,534 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 20:05:16,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:05:16,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 20:05:16,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 20:05:16,552 INFO L87 Difference]: Start difference. First operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 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, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2021-10-15 20:05:16,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:05:16,583 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2021-10-15 20:05:16,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 20:05:16,585 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2021-10-15 20:05:16,586 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-15 20:05:16,589 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 4 states and 5 transitions. [2021-10-15 20:05:16,590 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-10-15 20:05:16,590 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2021-10-15 20:05:16,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 5 transitions. [2021-10-15 20:05:16,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:05:16,591 INFO L681 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2021-10-15 20:05:16,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 5 transitions. [2021-10-15 20:05:16,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2021-10-15 20:05:16,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-10-15 20:05:16,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2021-10-15 20:05:16,633 INFO L704 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2021-10-15 20:05:16,633 INFO L587 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2021-10-15 20:05:16,633 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-15 20:05:16,633 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 5 transitions. [2021-10-15 20:05:16,635 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-15 20:05:16,635 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:05:16,635 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:05:16,635 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-15 20:05:16,636 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-15 20:05:16,636 INFO L791 eck$LassoCheckResult]: Stem: 24#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 25#L14-3 [2021-10-15 20:05:16,636 INFO L793 eck$LassoCheckResult]: Loop: 25#L14-3 assume !!(main_~x~0 == main_~y~0 && main_~x~0 > main_~z~0); 26#L14-2 assume !!(main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 27#L14-2 assume !(main_~y~0 > main_~z~0); 25#L14-3 [2021-10-15 20:05:16,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:05:16,639 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2021-10-15 20:05:16,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:05:16,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903084677] [2021-10-15 20:05:16,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:05:16,641 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:05:16,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:05:16,658 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:05:16,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:05:16,668 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:05:16,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:05:16,672 INFO L82 PathProgramCache]: Analyzing trace with hash 40007, now seen corresponding path program 1 times [2021-10-15 20:05:16,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:05:16,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534426427] [2021-10-15 20:05:16,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:05:16,674 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:05:16,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:05:16,697 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:05:16,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:05:16,706 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:05:16,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:05:16,707 INFO L82 PathProgramCache]: Analyzing trace with hash 963528, now seen corresponding path program 1 times [2021-10-15 20:05:16,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:05:16,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075284339] [2021-10-15 20:05:16,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:05:16,708 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:05:16,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:05:16,718 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:05:16,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:05:16,728 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:05:16,860 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 20:05:16,861 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 20:05:16,861 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 20:05:16,861 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 20:05:16,861 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-15 20:05:16,862 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:05:16,862 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 20:05:16,862 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 20:05:16,862 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB15.c_Iteration2_Loop [2021-10-15 20:05:16,862 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 20:05:16,863 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 20:05:16,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:05:16,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:05:16,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:05:17,037 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 20:05:17,038 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-15 20:05:17,040 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:05:17,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:05:17,049 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:05:17,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-15 20:05:17,064 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 20:05:17,065 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:05:17,088 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-15 20:05:17,089 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-15 20:05:17,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-15 20:05:17,125 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:05:17,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:05:17,127 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:05:17,133 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 20:05:17,133 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:05:17,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-15 20:05:17,168 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-15 20:05:17,168 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-15 20:05:17,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-15 20:05:17,207 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:05:17,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:05:17,212 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:05:17,219 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 20:05:17,219 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:05:17,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-15 20:05:17,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-15 20:05:17,280 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:05:17,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:05:17,284 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:05:17,291 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-15 20:05:17,291 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:05:17,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-15 20:05:17,622 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-15 20:05:17,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-15 20:05:17,629 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 20:05:17,629 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 20:05:17,629 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 20:05:17,629 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 20:05:17,629 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 20:05:17,629 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:05:17,629 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 20:05:17,630 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 20:05:17,630 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB15.c_Iteration2_Loop [2021-10-15 20:05:17,630 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 20:05:17,630 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 20:05:17,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:05:17,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:05:17,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:05:17,765 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 20:05:17,771 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 20:05:17,772 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:05:17,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:05:17,782 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:05:17,785 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 [2021-10-15 20:05:17,796 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:05:17,797 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:05:17,797 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:05:17,797 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:05:17,810 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:05:17,811 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:05:17,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-15 20:05:17,832 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:05:17,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-15 20:05:17,866 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:05:17,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:05:17,868 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:05:17,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-15 20:05:17,873 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 [2021-10-15 20:05:17,882 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:05:17,882 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:05:17,882 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:05:17,882 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:05:17,886 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:05:17,887 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:05:17,904 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:05:17,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-15 20:05:17,944 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:05:17,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:05:17,945 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:05:17,951 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 [2021-10-15 20:05:17,962 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:05:17,962 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:05:17,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:05:17,962 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:05:17,963 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:05:17,965 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:05:17,965 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:05:17,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-15 20:05:17,969 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-15 20:05:18,000 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-15 20:05:18,000 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-15 20:05:18,002 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:05:18,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:05:18,004 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:05:18,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-15 20:05:18,025 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-15 20:05:18,025 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-15 20:05:18,025 INFO L513 LassoAnalysis]: Proved termination. [2021-10-15 20:05:18,026 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~x~0 - 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2021-10-15 20:05:18,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-15 20:05:18,054 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-15 20:05:18,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:05:18,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:05:18,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-15 20:05:18,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:05:18,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:05:18,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-15 20:05:18,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:05:18,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:05:18,207 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-15 20:05:18,207 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 4 states and 5 transitions. cyclomatic complexity: 2 Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-10-15 20:05:18,240 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 4 states and 5 transitions. cyclomatic complexity: 2. Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 12 states and 17 transitions. Complement of second has 6 states. [2021-10-15 20:05:18,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-15 20:05:18,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-10-15 20:05:18,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2021-10-15 20:05:18,258 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 1 letters. Loop has 3 letters. [2021-10-15 20:05:18,259 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:05:18,259 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 3 letters. [2021-10-15 20:05:18,259 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:05:18,259 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 1 letters. Loop has 6 letters. [2021-10-15 20:05:18,260 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:05:18,260 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2021-10-15 20:05:18,262 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-15 20:05:18,262 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 8 states and 11 transitions. [2021-10-15 20:05:18,262 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-10-15 20:05:18,263 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2021-10-15 20:05:18,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2021-10-15 20:05:18,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-15 20:05:18,263 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-10-15 20:05:18,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2021-10-15 20:05:18,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2021-10-15 20:05:18,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 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) [2021-10-15 20:05:18,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2021-10-15 20:05:18,264 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-15 20:05:18,264 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-15 20:05:18,265 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-15 20:05:18,265 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2021-10-15 20:05:18,265 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-15 20:05:18,265 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:05:18,265 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:05:18,266 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2021-10-15 20:05:18,266 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-15 20:05:18,266 INFO L791 eck$LassoCheckResult]: Stem: 76#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 77#L14-3 assume !!(main_~x~0 == main_~y~0 && main_~x~0 > main_~z~0); 79#L14-2 assume !!(main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 80#L14-2 assume !!(main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 78#L14-2 [2021-10-15 20:05:18,266 INFO L793 eck$LassoCheckResult]: Loop: 78#L14-2 assume !!(main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 78#L14-2 [2021-10-15 20:05:18,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:05:18,267 INFO L82 PathProgramCache]: Analyzing trace with hash 963530, now seen corresponding path program 1 times [2021-10-15 20:05:18,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:05:18,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694929062] [2021-10-15 20:05:18,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:05:18,268 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:05:18,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:05:18,299 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:05:18,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:05:18,310 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:05:18,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:05:18,311 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2021-10-15 20:05:18,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:05:18,316 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607473076] [2021-10-15 20:05:18,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:05:18,316 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:05:18,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:05:18,323 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:05:18,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:05:18,331 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:05:18,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:05:18,332 INFO L82 PathProgramCache]: Analyzing trace with hash 29869449, now seen corresponding path program 2 times [2021-10-15 20:05:18,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:05:18,333 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754360116] [2021-10-15 20:05:18,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:05:18,333 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:05:18,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:05:18,351 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:05:18,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:05:18,363 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:05:18,386 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 20:05:18,386 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 20:05:18,386 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 20:05:18,386 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 20:05:18,386 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-15 20:05:18,387 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:05:18,387 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 20:05:18,387 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 20:05:18,387 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB15.c_Iteration3_Loop [2021-10-15 20:05:18,387 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 20:05:18,387 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 20:05:18,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:05:18,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:05:18,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:05:18,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:05:18,475 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 20:05:18,475 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-15 20:05:18,475 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:05:18,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:05:18,484 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:05:18,506 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 20:05:18,506 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:05:18,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-15 20:05:18,541 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-15 20:05:18,541 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-15 20:05:18,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-15 20:05:18,576 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:05:18,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:05:18,577 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:05:18,584 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 20:05:18,584 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:05:18,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-15 20:05:18,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-15 20:05:18,648 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:05:18,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:05:18,650 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:05:18,657 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-15 20:05:18,657 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:05:18,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-15 20:05:18,693 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-15 20:05:18,693 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=1}, {ULTIMATE.start_main_~x~0=-2}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [3, 1, 0] Nus: [1, 1] [2021-10-15 20:05:18,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-15 20:05:18,731 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:05:18,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:05:18,732 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:05:18,740 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 20:05:18,740 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:05:18,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-15 20:05:18,760 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-15 20:05:18,760 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-15 20:05:18,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-15 20:05:18,795 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:05:18,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:05:18,796 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:05:18,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-15 20:05:18,807 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 20:05:18,808 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:05:18,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-15 20:05:18,836 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:05:18,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:05:18,837 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:05:18,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-15 20:05:18,840 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-15 20:05:18,840 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:05:19,050 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-15 20:05:19,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-15 20:05:19,053 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 20:05:19,053 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 20:05:19,053 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 20:05:19,053 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 20:05:19,053 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 20:05:19,054 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:05:19,054 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 20:05:19,054 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 20:05:19,054 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB15.c_Iteration3_Loop [2021-10-15 20:05:19,054 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 20:05:19,054 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 20:05:19,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:05:19,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:05:19,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:05:19,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:05:19,144 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 20:05:19,145 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 20:05:19,145 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:05:19,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:05:19,146 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:05:19,155 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 [2021-10-15 20:05:19,165 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:05:19,165 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:05:19,165 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:05:19,165 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:05:19,172 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:05:19,174 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:05:19,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-15 20:05:19,195 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:05:19,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-15 20:05:19,232 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:05:19,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:05:19,233 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:05:19,241 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 [2021-10-15 20:05:19,251 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:05:19,251 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:05:19,251 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:05:19,251 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:05:19,251 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:05:19,252 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:05:19,252 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:05:19,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-15 20:05:19,263 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:05:19,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-15 20:05:19,298 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:05:19,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:05:19,300 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:05:19,305 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 [2021-10-15 20:05:19,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-15 20:05:19,315 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:05:19,315 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:05:19,315 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:05:19,315 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:05:19,325 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:05:19,325 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 20:05:19,334 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:05:19,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-15 20:05:19,354 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:05:19,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:05:19,356 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:05:19,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-15 20:05:19,360 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 [2021-10-15 20:05:19,368 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:05:19,368 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:05:19,368 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:05:19,368 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:05:19,368 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:05:19,369 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:05:19,369 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:05:19,375 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-15 20:05:19,378 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-15 20:05:19,378 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-15 20:05:19,378 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:05:19,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:05:19,379 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:05:19,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-15 20:05:19,388 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-15 20:05:19,388 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-15 20:05:19,388 INFO L513 LassoAnalysis]: Proved termination. [2021-10-15 20:05:19,388 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~y~0 - 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2021-10-15 20:05:19,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-15 20:05:19,414 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-15 20:05:19,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:05:19,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:05:19,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-15 20:05:19,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:05:19,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:05:19,478 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-15 20:05:19,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:05:19,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:05:19,482 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-15 20:05:19,482 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-10-15 20:05:19,501 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 11 states and 15 transitions. Complement of second has 4 states. [2021-10-15 20:05:19,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-15 20:05:19,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-10-15 20:05:19,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-10-15 20:05:19,504 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 1 letters. [2021-10-15 20:05:19,504 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:05:19,504 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 1 letters. [2021-10-15 20:05:19,506 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:05:19,507 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-15 20:05:19,507 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 20:05:19,508 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 15 transitions. [2021-10-15 20:05:19,512 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-15 20:05:19,512 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2021-10-15 20:05:19,513 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-15 20:05:19,513 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-15 20:05:19,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-15 20:05:19,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:05:19,513 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 20:05:19,514 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 20:05:19,514 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 20:05:19,514 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-15 20:05:19,514 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-15 20:05:19,514 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-15 20:05:19,514 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-15 20:05:19,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.10 08:05:19 BoogieIcfgContainer [2021-10-15 20:05:19,522 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-15 20:05:19,524 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 20:05:19,525 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 20:05:19,525 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 20:05:19,526 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:05:16" (3/4) ... [2021-10-15 20:05:19,541 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-15 20:05:19,545 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 20:05:19,547 INFO L168 Benchmark]: Toolchain (without parser) took 3821.53 ms. Allocated memory was 130.0 MB in the beginning and 180.4 MB in the end (delta: 50.3 MB). Free memory was 101.1 MB in the beginning and 106.7 MB in the end (delta: -5.7 MB). Peak memory consumption was 45.0 MB. Max. memory is 16.1 GB. [2021-10-15 20:05:19,548 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 130.0 MB. Free memory is still 85.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:05:19,551 INFO L168 Benchmark]: CACSL2BoogieTranslator took 202.14 ms. Allocated memory is still 130.0 MB. Free memory was 100.9 MB in the beginning and 103.9 MB in the end (delta: -3.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-15 20:05:19,553 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.21 ms. Allocated memory is still 130.0 MB. Free memory was 103.9 MB in the beginning and 102.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:05:19,555 INFO L168 Benchmark]: Boogie Preprocessor took 22.47 ms. Allocated memory is still 130.0 MB. Free memory was 102.7 MB in the beginning and 101.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:05:19,556 INFO L168 Benchmark]: RCFGBuilder took 267.12 ms. Allocated memory is still 130.0 MB. Free memory was 101.7 MB in the beginning and 94.1 MB in the end (delta: 7.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-15 20:05:19,558 INFO L168 Benchmark]: BuchiAutomizer took 3259.86 ms. Allocated memory was 130.0 MB in the beginning and 180.4 MB in the end (delta: 50.3 MB). Free memory was 93.8 MB in the beginning and 106.7 MB in the end (delta: -12.9 MB). Peak memory consumption was 40.2 MB. Max. memory is 16.1 GB. [2021-10-15 20:05:19,559 INFO L168 Benchmark]: Witness Printer took 20.45 ms. Allocated memory is still 180.4 MB. Free memory is still 106.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:05:19,562 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 130.0 MB. Free memory is still 85.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 202.14 ms. Allocated memory is still 130.0 MB. Free memory was 100.9 MB in the beginning and 103.9 MB in the end (delta: -3.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.21 ms. Allocated memory is still 130.0 MB. Free memory was 103.9 MB in the beginning and 102.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.47 ms. Allocated memory is still 130.0 MB. Free memory was 102.7 MB in the beginning and 101.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 267.12 ms. Allocated memory is still 130.0 MB. Free memory was 101.7 MB in the beginning and 94.1 MB in the end (delta: 7.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3259.86 ms. Allocated memory was 130.0 MB in the beginning and 180.4 MB in the end (delta: 50.3 MB). Free memory was 93.8 MB in the beginning and 106.7 MB in the end (delta: -12.9 MB). Peak memory consumption was 40.2 MB. Max. memory is 16.1 GB. * Witness Printer took 20.45 ms. Allocated memory is still 180.4 MB. Free memory is still 106.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x + -1 * z and consists of 4 locations. One deterministic module has affine ranking function y + -1 * z and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 2.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 12.6ms AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/1 HoareTripleCheckerStatistics: 11 SDtfs, 6 SDslu, 3 SDs, 0 SdLazy, 18 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 34.2ms Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax168 hnf100 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq168 hnf92 smp92 dnf100 smp100 tf110 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 60ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.9s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-15 20:05:19,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-15 20:05:19,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-15 20:05:20,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b4f685-090f-40eb-985a-caa59330d342/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...