./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Parallel.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Parallel.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be --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 6d237a1b253e1662249abfec0a27795a205783446cdc8f92e994520c562b96f7 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 20:10:36,516 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:10:36,518 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:10:36,564 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:10:36,565 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:10:36,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:10:36,574 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:10:36,576 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:10:36,578 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:10:36,579 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:10:36,581 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:10:36,582 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:10:36,583 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:10:36,584 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:10:36,585 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:10:36,587 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:10:36,588 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:10:36,589 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:10:36,592 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:10:36,594 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:10:36,596 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:10:36,598 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:10:36,599 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:10:36,600 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:10:36,604 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:10:36,605 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:10:36,605 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:10:36,606 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:10:36,607 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:10:36,608 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:10:36,608 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:10:36,609 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:10:36,610 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:10:36,611 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:10:36,612 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:10:36,612 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:10:36,613 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:10:36,614 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:10:36,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:10:36,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:10:36,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:10:36,616 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-21 20:10:36,642 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:10:36,642 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:10:36,643 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:10:36,643 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:10:36,644 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:10:36,644 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:10:36,645 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:10:36,645 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 20:10:36,645 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 20:10:36,646 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 20:10:36,646 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 20:10:36,646 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 20:10:36,646 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 20:10:36,647 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:10:36,647 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 20:10:36,647 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:10:36,647 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:10:36,648 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 20:10:36,648 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 20:10:36,648 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 20:10:36,649 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:10:36,649 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 20:10:36,649 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:10:36,649 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 20:10:36,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:10:36,650 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:10:36,650 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:10:36,650 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:10:36,651 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:10:36,652 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 20:10:36,652 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_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d237a1b253e1662249abfec0a27795a205783446cdc8f92e994520c562b96f7 [2021-10-21 20:10:36,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:10:36,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:10:36,942 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:10:36,943 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:10:36,944 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:10:36,945 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/termination-crafted/Parallel.c [2021-10-21 20:10:37,004 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/data/6b8961b4e/d48ad9e97b3b40058aa5eeacc01add00/FLAGbb70ccc7a [2021-10-21 20:10:37,495 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:10:37,496 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/sv-benchmarks/c/termination-crafted/Parallel.c [2021-10-21 20:10:37,502 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/data/6b8961b4e/d48ad9e97b3b40058aa5eeacc01add00/FLAGbb70ccc7a [2021-10-21 20:10:37,873 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/data/6b8961b4e/d48ad9e97b3b40058aa5eeacc01add00 [2021-10-21 20:10:37,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:10:37,877 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:10:37,881 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:10:37,881 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:10:37,885 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:10:37,886 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:10:37" (1/1) ... [2021-10-21 20:10:37,889 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77a63871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:37, skipping insertion in model container [2021-10-21 20:10:37,889 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:10:37" (1/1) ... [2021-10-21 20:10:37,896 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:10:37,913 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:10:38,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:10:38,080 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:10:38,114 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:10:38,127 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:10:38,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:38 WrapperNode [2021-10-21 20:10:38,127 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:10:38,129 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:10:38,129 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:10:38,129 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:10:38,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:38" (1/1) ... [2021-10-21 20:10:38,155 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:38" (1/1) ... [2021-10-21 20:10:38,171 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:10:38,172 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:10:38,172 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:10:38,172 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:10:38,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:38" (1/1) ... [2021-10-21 20:10:38,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:38" (1/1) ... [2021-10-21 20:10:38,181 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:38" (1/1) ... [2021-10-21 20:10:38,181 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:38" (1/1) ... [2021-10-21 20:10:38,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:38" (1/1) ... [2021-10-21 20:10:38,186 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:38" (1/1) ... [2021-10-21 20:10:38,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:38" (1/1) ... [2021-10-21 20:10:38,188 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:10:38,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:10:38,189 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:10:38,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:10:38,191 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:38" (1/1) ... [2021-10-21 20:10:38,198 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:10:38,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:10:38,220 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:10:38,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 20:10:38,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:10:38,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:10:38,430 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:10:38,430 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-21 20:10:38,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:10:38 BoogieIcfgContainer [2021-10-21 20:10:38,434 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:10:38,435 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 20:10:38,435 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 20:10:38,439 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 20:10:38,440 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:10:38,440 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 08:10:37" (1/3) ... [2021-10-21 20:10:38,441 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b8035c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:10:38, skipping insertion in model container [2021-10-21 20:10:38,442 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:10:38,442 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:38" (2/3) ... [2021-10-21 20:10:38,442 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b8035c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:10:38, skipping insertion in model container [2021-10-21 20:10:38,442 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:10:38,443 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:10:38" (3/3) ... [2021-10-21 20:10:38,444 INFO L389 chiAutomizerObserver]: Analyzing ICFG Parallel.c [2021-10-21 20:10:38,504 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 20:10:38,504 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 20:10:38,504 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 20:10:38,505 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 20:10:38,505 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 20:10:38,505 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 20:10:38,505 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 20:10:38,505 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 20:10:38,519 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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) [2021-10-21 20:10:38,535 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:10:38,535 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:10:38,535 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:10:38,541 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-21 20:10:38,541 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:10:38,541 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 20:10:38,542 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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) [2021-10-21 20:10:38,543 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:10:38,543 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:10:38,543 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:10:38,543 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-21 20:10:38,544 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:10:38,550 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 5#L23-2true [2021-10-21 20:10:38,550 INFO L793 eck$LassoCheckResult]: Loop: 5#L23-2true assume !!(main_~x~0 >= 0 || main_~y~0 >= 0); 6#L23true assume main_~x~0 >= 0;main_~x~0 := main_~x~0 - 1; 5#L23-2true [2021-10-21 20:10:38,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:10:38,555 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-21 20:10:38,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:10:38,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86159760] [2021-10-21 20:10:38,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:10:38,566 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:10:38,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:10:38,635 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:10:38,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:10:38,652 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:10:38,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:10:38,655 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2021-10-21 20:10:38,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:10:38,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30547735] [2021-10-21 20:10:38,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:10:38,656 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:10:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:10:38,666 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:10:38,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:10:38,672 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:10:38,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:10:38,674 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2021-10-21 20:10:38,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:10:38,675 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207017998] [2021-10-21 20:10:38,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:10:38,675 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:10:38,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:10:38,681 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:10:38,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:10:38,688 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:10:38,772 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:10:38,775 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:10:38,784 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:10:38,784 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:10:38,784 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:10:38,800 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:10:38,800 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:10:38,800 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:10:38,801 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parallel.c_Iteration1_Loop [2021-10-21 20:10:38,801 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:10:38,801 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:10:38,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:10:38,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:10:38,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:10:38,909 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:10:38,910 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:10:38,913 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:10:38,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:10:38,915 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:10:38,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 20:10:38,928 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:10:38,928 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:10:38,966 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:10:38,966 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: [] [2021-10-21 20:10:39,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-21 20:10:39,006 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:10:39,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:10:39,009 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:10:39,014 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:10:39,014 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:10:39,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 20:10:39,047 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:10:39,048 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: [] [2021-10-21 20:10:39,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 20:10:39,070 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:10:39,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:10:39,072 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:10:39,076 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:10:39,077 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:10:39,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 20:10:39,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-10-21 20:10:39,124 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:10:39,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:10:39,125 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:10:39,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 20:10:39,127 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:10:39,127 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:10:39,171 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:10:39,173 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-10-21 20:10:39,173 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:10:39,173 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:10:39,174 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:10:39,174 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:10:39,174 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:10:39,174 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:10:39,174 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:10:39,174 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:10:39,174 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parallel.c_Iteration1_Loop [2021-10-21 20:10:39,174 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:10:39,174 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:10:39,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:10:39,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:10:39,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:10:39,234 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:10:39,238 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:10:39,240 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:10:39,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:10:39,241 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:10:39,245 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 [2021-10-21 20:10:39,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 20:10:39,253 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:10:39,253 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:10:39,253 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:10:39,253 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:10:39,261 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:10:39,261 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:10:39,285 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:10:39,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-21 20:10:39,304 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:10:39,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:10:39,306 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:10:39,309 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 [2021-10-21 20:10:39,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-21 20:10:39,318 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:10:39,318 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:10:39,318 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:10:39,318 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:10:39,322 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:10:39,323 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:10:39,358 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:10:39,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-21 20:10:39,384 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:10:39,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:10:39,385 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:10:39,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-21 20:10:39,390 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 [2021-10-21 20:10:39,397 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:10:39,397 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:10:39,398 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:10:39,398 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:10:39,398 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:10:39,399 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:10:39,400 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:10:39,409 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:10:39,429 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 20:10:39,429 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 20:10:39,430 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:10:39,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:10:39,433 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:10:39,457 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:10:39,457 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 20:10:39,457 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:10:39,457 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2021-10-21 20:10:39,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-21 20:10:39,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-21 20:10:39,497 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 20:10:39,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:10:39,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:10:39,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:10:39,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:10:39,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:10:39,554 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:10:39,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:10:39,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:10:39,581 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 [2021-10-21 20:10:39,582 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-10-21 20:10:39,629 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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 21 states and 30 transitions. Complement of second has 5 states. [2021-10-21 20:10:39,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 20:10:39,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-10-21 20:10:39,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-10-21 20:10:39,634 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 1 letters. Loop has 2 letters. [2021-10-21 20:10:39,635 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:10:39,635 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-21 20:10:39,636 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:10:39,637 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 1 letters. Loop has 4 letters. [2021-10-21 20:10:39,637 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:10:39,638 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 30 transitions. [2021-10-21 20:10:39,642 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:10:39,647 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 8 states and 11 transitions. [2021-10-21 20:10:39,648 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-10-21 20:10:39,649 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-10-21 20:10:39,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2021-10-21 20:10:39,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:10:39,650 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-10-21 20:10:39,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2021-10-21 20:10:39,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2021-10-21 20:10:39,674 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) [2021-10-21 20:10:39,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2021-10-21 20:10:39,676 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-21 20:10:39,676 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-21 20:10:39,676 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 20:10:39,676 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2021-10-21 20:10:39,677 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 20:10:39,677 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:10:39,677 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:10:39,677 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-21 20:10:39,677 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:10:39,677 INFO L791 eck$LassoCheckResult]: Stem: 60#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 61#L23-2 assume !!(main_~x~0 >= 0 || main_~y~0 >= 0); 63#L23 [2021-10-21 20:10:39,678 INFO L793 eck$LassoCheckResult]: Loop: 63#L23 assume !(main_~x~0 >= 0);main_~y~0 := main_~y~0 - 1; 62#L23-2 assume !!(main_~x~0 >= 0 || main_~y~0 >= 0); 63#L23 [2021-10-21 20:10:39,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:10:39,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-10-21 20:10:39,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:10:39,679 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508865812] [2021-10-21 20:10:39,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:10:39,679 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:10:39,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:10:39,683 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:10:39,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:10:39,688 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:10:39,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:10:39,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 1 times [2021-10-21 20:10:39,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:10:39,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869501289] [2021-10-21 20:10:39,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:10:39,689 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:10:39,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:10:39,694 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:10:39,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:10:39,698 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:10:39,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:10:39,699 INFO L82 PathProgramCache]: Analyzing trace with hash 963397, now seen corresponding path program 1 times [2021-10-21 20:10:39,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:10:39,699 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108040908] [2021-10-21 20:10:39,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:10:39,700 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:10:39,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:10:39,705 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:10:39,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:10:39,711 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:10:39,740 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:10:39,740 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:10:39,740 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:10:39,740 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:10:39,740 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:10:39,741 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:10:39,741 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:10:39,741 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:10:39,741 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parallel.c_Iteration2_Loop [2021-10-21 20:10:39,741 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:10:39,741 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:10:39,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:10:39,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:10:39,755 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:10:39,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:10:39,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-21 20:10:39,844 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:10:39,844 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:10:39,844 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:10:39,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:10:39,846 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:10:39,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-21 20:10:39,856 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:10:39,864 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:10:39,888 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:10:39,888 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: [] [2021-10-21 20:10:39,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-21 20:10:39,908 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:10:39,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:10:39,909 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:10:39,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-21 20:10:39,913 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:10:39,913 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:10:39,930 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:10:39,931 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: [] [2021-10-21 20:10:39,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-21 20:10:39,950 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:10:39,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:10:39,951 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:10:39,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-21 20:10:39,953 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:10:39,953 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:10:39,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-21 20:10:39,983 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:10:39,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:10:39,984 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:10:39,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-21 20:10:39,985 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:10:39,989 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:10:40,071 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:10:40,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-21 20:10:40,074 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:10:40,074 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:10:40,074 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:10:40,074 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:10:40,074 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:10:40,074 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:10:40,074 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:10:40,074 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:10:40,074 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parallel.c_Iteration2_Loop [2021-10-21 20:10:40,074 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:10:40,074 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:10:40,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:10:40,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:10:40,083 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:10:40,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:10:40,128 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:10:40,128 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:10:40,128 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:10:40,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:10:40,129 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:10:40,140 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 [2021-10-21 20:10:40,149 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:10:40,150 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:10:40,150 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:10:40,150 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:10:40,153 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:10:40,153 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:10:40,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-21 20:10:40,171 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:10:40,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-21 20:10:40,207 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:10:40,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:10:40,208 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:10:40,214 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 [2021-10-21 20:10:40,223 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:10:40,223 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:10:40,223 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:10:40,224 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:10:40,227 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:10:40,227 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:10:40,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-21 20:10:40,248 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:10:40,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-21 20:10:40,281 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:10:40,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:10:40,285 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:10:40,287 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 [2021-10-21 20:10:40,296 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:10:40,296 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:10:40,296 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:10:40,296 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:10:40,296 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:10:40,297 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:10:40,298 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:10:40,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-21 20:10:40,316 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:10:40,319 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 20:10:40,319 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-21 20:10:40,320 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:10:40,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:10:40,322 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:10:40,324 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:10:40,324 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 20:10:40,324 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:10:40,324 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-21 20:10:40,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-21 20:10:40,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-21 20:10:40,354 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 20:10:40,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:10:40,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:10:40,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:10:40,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:10:40,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:10:40,382 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 20:10:40,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:10:40,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:10:40,443 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 20:10:40,450 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 1.3333333333333333) 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) [2021-10-21 20:10:40,473 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 1.3333333333333333) 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 16 states and 23 transitions. Complement of second has 6 states. [2021-10-21 20:10:40,473 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 [2021-10-21 20:10:40,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) 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) [2021-10-21 20:10:40,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2021-10-21 20:10:40,475 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-21 20:10:40,475 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:10:40,475 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-21 20:10:40,475 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:10:40,475 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-21 20:10:40,475 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:10:40,476 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 23 transitions. [2021-10-21 20:10:40,478 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 20:10:40,479 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2021-10-21 20:10:40,479 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 20:10:40,479 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 20:10:40,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 20:10:40,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:10:40,480 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:10:40,480 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:10:40,480 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:10:40,480 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 20:10:40,480 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-21 20:10:40,480 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 20:10:40,480 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-21 20:10:40,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 08:10:40 BoogieIcfgContainer [2021-10-21 20:10:40,486 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 20:10:40,487 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:10:40,488 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:10:40,488 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:10:40,488 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:10:38" (3/4) ... [2021-10-21 20:10:40,491 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 20:10:40,491 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:10:40,499 INFO L168 Benchmark]: Toolchain (without parser) took 2615.07 ms. Allocated memory was 134.2 MB in the beginning and 197.1 MB in the end (delta: 62.9 MB). Free memory was 95.7 MB in the beginning and 155.1 MB in the end (delta: -59.5 MB). Peak memory consumption was 2.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:10:40,499 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 134.2 MB. Free memory was 111.9 MB in the beginning and 111.8 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:10:40,500 INFO L168 Benchmark]: CACSL2BoogieTranslator took 246.72 ms. Allocated memory is still 134.2 MB. Free memory was 95.5 MB in the beginning and 110.0 MB in the end (delta: -14.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:10:40,501 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.63 ms. Allocated memory is still 134.2 MB. Free memory was 109.9 MB in the beginning and 108.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:10:40,501 INFO L168 Benchmark]: Boogie Preprocessor took 16.49 ms. Allocated memory is still 134.2 MB. Free memory was 108.5 MB in the beginning and 107.8 MB in the end (delta: 706.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:10:40,502 INFO L168 Benchmark]: RCFGBuilder took 244.82 ms. Allocated memory is still 134.2 MB. Free memory was 107.4 MB in the beginning and 99.7 MB in the end (delta: 7.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-21 20:10:40,505 INFO L168 Benchmark]: BuchiAutomizer took 2050.88 ms. Allocated memory was 134.2 MB in the beginning and 197.1 MB in the end (delta: 62.9 MB). Free memory was 99.7 MB in the beginning and 155.1 MB in the end (delta: -55.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:10:40,506 INFO L168 Benchmark]: Witness Printer took 4.13 ms. Allocated memory is still 197.1 MB. Free memory is still 155.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:10:40,515 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 134.2 MB. Free memory was 111.9 MB in the beginning and 111.8 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 246.72 ms. Allocated memory is still 134.2 MB. Free memory was 95.5 MB in the beginning and 110.0 MB in the end (delta: -14.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.63 ms. Allocated memory is still 134.2 MB. Free memory was 109.9 MB in the beginning and 108.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 16.49 ms. Allocated memory is still 134.2 MB. Free memory was 108.5 MB in the beginning and 107.8 MB in the end (delta: 706.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 244.82 ms. Allocated memory is still 134.2 MB. Free memory was 107.4 MB in the beginning and 99.7 MB in the end (delta: 7.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2050.88 ms. Allocated memory was 134.2 MB in the beginning and 197.1 MB in the end (delta: 62.9 MB). Free memory was 99.7 MB in the beginning and 155.1 MB in the end (delta: -55.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. * Witness Printer took 4.13 ms. Allocated memory is still 197.1 MB. Free memory is still 155.1 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 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * x + 1 and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 12.0ms AutomataMinimizationTime, 1 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 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 7 SDtfs, 9 SDslu, 4 SDs, 0 SdLazy, 14 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.1ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax206 hnf100 lsp42 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 45ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-21 20:10:40,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-21 20:10:40,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4aa3e92-6310-4eaf-995c-27e63475f484/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...