./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/aviad.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_efbbba38-bb9d-4f7a-816c-06b121a4f776/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbbba38-bb9d-4f7a-816c-06b121a4f776/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_efbbba38-bb9d-4f7a-816c-06b121a4f776/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbbba38-bb9d-4f7a-816c-06b121a4f776/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/aviad.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbbba38-bb9d-4f7a-816c-06b121a4f776/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_efbbba38-bb9d-4f7a-816c-06b121a4f776/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 212c9b1b6a93f8f17548e7937584929a6b6ed1677eb6287f5deae898fbaeb3a4 .............................................................................................................................................................................................................................................................................................................................................................................................. 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 19:36:28,545 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:36:28,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:36:28,621 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:36:28,622 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:36:28,627 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:36:28,629 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:36:28,634 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:36:28,637 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:36:28,643 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:36:28,645 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:36:28,647 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:36:28,648 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:36:28,651 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:36:28,654 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:36:28,659 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:36:28,661 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:36:28,662 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:36:28,665 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:36:28,675 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:36:28,677 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:36:28,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:36:28,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:36:28,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:36:28,694 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:36:28,695 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:36:28,695 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:36:28,698 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:36:28,698 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:36:28,700 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:36:28,701 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:36:28,702 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:36:28,705 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:36:28,706 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:36:28,708 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:36:28,708 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:36:28,709 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:36:28,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:36:28,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:36:28,711 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:36:28,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:36:28,712 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbbba38-bb9d-4f7a-816c-06b121a4f776/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-21 19:36:28,763 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:36:28,764 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:36:28,765 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:36:28,765 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:36:28,768 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:36:28,769 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:36:28,769 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:36:28,769 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:36:28,769 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:36:28,770 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:36:28,771 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:36:28,771 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:36:28,772 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:36:28,772 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:36:28,772 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:36:28,772 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:36:28,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:36:28,773 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:36:28,773 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:36:28,774 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:36:28,774 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:36:28,774 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:36:28,774 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:36:28,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:36:28,775 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:36:28,775 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:36:28,776 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:36:28,776 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:36:28,776 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:36:28,778 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:36:28,778 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_efbbba38-bb9d-4f7a-816c-06b121a4f776/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbbba38-bb9d-4f7a-816c-06b121a4f776/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 212c9b1b6a93f8f17548e7937584929a6b6ed1677eb6287f5deae898fbaeb3a4 [2021-10-21 19:36:29,154 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:36:29,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:36:29,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:36:29,204 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:36:29,205 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:36:29,206 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbbba38-bb9d-4f7a-816c-06b121a4f776/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/termination-crafted-lit/aviad.c [2021-10-21 19:36:29,301 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbbba38-bb9d-4f7a-816c-06b121a4f776/bin/uautomizer-j4sWxH34Be/data/e6e4fb691/cfa4daff3dd647fdb77236d5c37dd56d/FLAG873002da7 [2021-10-21 19:36:29,899 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:36:29,900 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbbba38-bb9d-4f7a-816c-06b121a4f776/sv-benchmarks/c/termination-crafted-lit/aviad.c [2021-10-21 19:36:29,906 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbbba38-bb9d-4f7a-816c-06b121a4f776/bin/uautomizer-j4sWxH34Be/data/e6e4fb691/cfa4daff3dd647fdb77236d5c37dd56d/FLAG873002da7 [2021-10-21 19:36:30,265 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbbba38-bb9d-4f7a-816c-06b121a4f776/bin/uautomizer-j4sWxH34Be/data/e6e4fb691/cfa4daff3dd647fdb77236d5c37dd56d [2021-10-21 19:36:30,268 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:36:30,269 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:36:30,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:36:30,272 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:36:30,276 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:36:30,277 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:36:30" (1/1) ... [2021-10-21 19:36:30,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56be4e7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:30, skipping insertion in model container [2021-10-21 19:36:30,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:36:30" (1/1) ... [2021-10-21 19:36:30,287 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:36:30,301 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:36:30,507 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:36:30,531 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:36:30,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:36:30,559 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:36:30,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:30 WrapperNode [2021-10-21 19:36:30,560 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:36:30,561 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:36:30,561 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:36:30,561 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:36:30,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:30" (1/1) ... [2021-10-21 19:36:30,580 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:30" (1/1) ... [2021-10-21 19:36:30,605 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:36:30,606 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:36:30,606 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:36:30,606 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:36:30,615 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:30" (1/1) ... [2021-10-21 19:36:30,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:30" (1/1) ... [2021-10-21 19:36:30,617 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:30" (1/1) ... [2021-10-21 19:36:30,617 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:30" (1/1) ... [2021-10-21 19:36:30,621 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:30" (1/1) ... [2021-10-21 19:36:30,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:30" (1/1) ... [2021-10-21 19:36:30,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:30" (1/1) ... [2021-10-21 19:36:30,634 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:36:30,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:36:30,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:36:30,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:36:30,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:30" (1/1) ... [2021-10-21 19:36:30,646 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:36:30,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbbba38-bb9d-4f7a-816c-06b121a4f776/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:36:30,673 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbbba38-bb9d-4f7a-816c-06b121a4f776/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:36:30,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbbba38-bb9d-4f7a-816c-06b121a4f776/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:36:30,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:36:30,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:36:30,870 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:36:30,874 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-21 19:36:30,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:36:30 BoogieIcfgContainer [2021-10-21 19:36:30,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:36:30,876 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:36:30,876 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:36:30,882 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:36:30,882 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:36:30,882 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:36:30" (1/3) ... [2021-10-21 19:36:30,883 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5446cce4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:36:30, skipping insertion in model container [2021-10-21 19:36:30,884 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:36:30,884 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:30" (2/3) ... [2021-10-21 19:36:30,884 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5446cce4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:36:30, skipping insertion in model container [2021-10-21 19:36:30,884 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:36:30,884 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:36:30" (3/3) ... [2021-10-21 19:36:30,885 INFO L389 chiAutomizerObserver]: Analyzing ICFG aviad.c [2021-10-21 19:36:30,929 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:36:30,929 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:36:30,930 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:36:30,930 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:36:30,930 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:36:30,930 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:36:30,930 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:36:30,930 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:36:30,944 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 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 19:36:30,960 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:36:30,960 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:36:30,961 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:36:30,966 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-21 19:36:30,966 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:36:30,966 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:36:30,967 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 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 19:36:30,968 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:36:30,968 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:36:30,969 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:36:30,969 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-21 19:36:30,969 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:36:30,975 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~ret2, main_~x~0, main_~count~1;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1;f_#in~a := main_~x~0;havoc f_#res;havoc f_#t~post0, f_~a, f_~tmp~0, f_~count~0;f_~a := f_#in~a;havoc f_~tmp~0;f_~count~0 := 0; 10#L11-2true [2021-10-21 19:36:30,976 INFO L793 eck$LassoCheckResult]: Loop: 10#L11-2true assume !!(f_~a > 1);f_~tmp~0 := (if f_~a < 0 && 0 != f_~a % 2 then f_~a % 2 - 2 else f_~a % 2); 6#L13true assume 0 == f_~tmp~0;f_~a := (if f_~a < 0 && 0 != f_~a % 2 then 1 + f_~a / 2 else f_~a / 2); 7#L13-2true f_#t~post0 := f_~count~0;f_~count~0 := 1 + f_#t~post0;havoc f_#t~post0; 10#L11-2true [2021-10-21 19:36:30,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:36:30,982 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-21 19:36:30,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:36:30,994 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966221248] [2021-10-21 19:36:30,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:30,995 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:36:31,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:36:31,079 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:36:31,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:36:31,097 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:36:31,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:36:31,108 INFO L82 PathProgramCache]: Analyzing trace with hash 39821, now seen corresponding path program 1 times [2021-10-21 19:36:31,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:36:31,109 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612627623] [2021-10-21 19:36:31,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:31,109 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:36:31,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:36:31,134 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:36:31,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:36:31,150 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:36:31,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:36:31,153 INFO L82 PathProgramCache]: Analyzing trace with hash 963342, now seen corresponding path program 1 times [2021-10-21 19:36:31,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:36:31,153 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527169923] [2021-10-21 19:36:31,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:31,154 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:36:31,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:36:31,185 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:36:31,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:36:31,219 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:36:31,366 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:36:31,366 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:36:31,366 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:36:31,367 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:36:31,367 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 19:36:31,367 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:36:31,367 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:36:31,367 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:36:31,367 INFO L133 ssoRankerPreferences]: Filename of dumped script: aviad.c_Iteration1_Loop [2021-10-21 19:36:31,367 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:36:31,368 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:36:31,380 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 19:36:31,386 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 19:36:31,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:36:31,575 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:36:31,575 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 19:36:31,577 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:36:31,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbbba38-bb9d-4f7a-816c-06b121a4f776/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:36:31,578 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbbba38-bb9d-4f7a-816c-06b121a4f776/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:36:31,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbbba38-bb9d-4f7a-816c-06b121a4f776/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 19:36:31,580 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:36:31,580 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:36:31,595 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:36:31,595 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~post0=0} Honda state: {ULTIMATE.start_f_#t~post0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:36:31,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbbba38-bb9d-4f7a-816c-06b121a4f776/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-10-21 19:36:31,618 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:36:31,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbbba38-bb9d-4f7a-816c-06b121a4f776/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:36:31,620 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbbba38-bb9d-4f7a-816c-06b121a4f776/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:36:31,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbbba38-bb9d-4f7a-816c-06b121a4f776/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 19:36:31,641 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:36:31,644 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:36:31,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbbba38-bb9d-4f7a-816c-06b121a4f776/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:36:31,730 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:36:31,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbbba38-bb9d-4f7a-816c-06b121a4f776/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:36:31,732 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbbba38-bb9d-4f7a-816c-06b121a4f776/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:36:31,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbbba38-bb9d-4f7a-816c-06b121a4f776/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 19:36:31,734 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:36:31,734 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:36:31,796 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 19:36:31,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbbba38-bb9d-4f7a-816c-06b121a4f776/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:36:31,799 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:36:31,799 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:36:31,800 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:36:31,800 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:36:31,800 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:36:31,800 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:36:31,800 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:36:31,800 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:36:31,800 INFO L133 ssoRankerPreferences]: Filename of dumped script: aviad.c_Iteration1_Loop [2021-10-21 19:36:31,800 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:36:31,800 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:36:31,802 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 19:36:31,807 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 19:36:31,833 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 19:36:31,910 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:36:31,914 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:36:31,916 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:36:31,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbbba38-bb9d-4f7a-816c-06b121a4f776/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:36:31,917 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbbba38-bb9d-4f7a-816c-06b121a4f776/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:36:31,928 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 19:36:31,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbbba38-bb9d-4f7a-816c-06b121a4f776/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 19:36:31,938 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:36:31,938 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:36:31,939 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:36:31,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:36:31,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:36:31,941 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:36:31,941 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:36:31,951 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:36:31,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbbba38-bb9d-4f7a-816c-06b121a4f776/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:36:31,980 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:36:31,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbbba38-bb9d-4f7a-816c-06b121a4f776/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:36:31,981 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbbba38-bb9d-4f7a-816c-06b121a4f776/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:36:31,989 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 19:36:31,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbbba38-bb9d-4f7a-816c-06b121a4f776/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 19:36:31,998 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:36:31,998 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:36:31,998 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:36:31,998 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:36:31,998 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:36:32,001 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:36:32,001 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:36:32,007 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:36:32,010 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-21 19:36:32,010 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 19:36:32,012 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:36:32,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbbba38-bb9d-4f7a-816c-06b121a4f776/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:36:32,017 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbbba38-bb9d-4f7a-816c-06b121a4f776/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:36:32,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbbba38-bb9d-4f7a-816c-06b121a4f776/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-21 19:36:32,060 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:36:32,061 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 19:36:32,061 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:36:32,061 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~a) = 1*ULTIMATE.start_f_~a Supporting invariants [] [2021-10-21 19:36:32,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbbba38-bb9d-4f7a-816c-06b121a4f776/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:36:32,098 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 19:36:32,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:36:32,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:36:32,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:36:32,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:36:32,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:36:32,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:36:32,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:36:32,286 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 19:36:32,304 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-21 19:36:32,305 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 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 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:32,346 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 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 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 28 transitions. Complement of second has 7 states. [2021-10-21 19:36:32,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-21 19:36:32,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:36:32,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2021-10-21 19:36:32,350 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 1 letters. Loop has 3 letters. [2021-10-21 19:36:32,351 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:36:32,351 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 4 letters. Loop has 3 letters. [2021-10-21 19:36:32,352 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:36:32,352 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 1 letters. Loop has 6 letters. [2021-10-21 19:36:32,352 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:36:32,353 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 28 transitions. [2021-10-21 19:36:32,356 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:36:32,359 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2021-10-21 19:36:32,360 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 19:36:32,360 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 19:36:32,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 19:36:32,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:36:32,361 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:36:32,361 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:36:32,361 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:36:32,361 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:36:32,361 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:36:32,362 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:36:32,362 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-21 19:36:32,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:36:32 BoogieIcfgContainer [2021-10-21 19:36:32,367 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:36:32,368 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:36:32,368 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:36:32,368 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:36:32,369 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:36:30" (3/4) ... [2021-10-21 19:36:32,372 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:36:32,372 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:36:32,373 INFO L168 Benchmark]: Toolchain (without parser) took 2102.96 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 62.1 MB in the beginning and 75.1 MB in the end (delta: -13.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2021-10-21 19:36:32,374 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 96.5 MB. Free memory was 68.2 MB in the beginning and 68.2 MB in the end (delta: 29.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:36:32,375 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.80 ms. Allocated memory is still 96.5 MB. Free memory was 61.8 MB in the beginning and 73.9 MB in the end (delta: -12.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:36:32,376 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.05 ms. Allocated memory is still 96.5 MB. Free memory was 73.9 MB in the beginning and 72.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:36:32,376 INFO L168 Benchmark]: Boogie Preprocessor took 28.63 ms. Allocated memory is still 96.5 MB. Free memory was 72.7 MB in the beginning and 71.9 MB in the end (delta: 819.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:36:32,377 INFO L168 Benchmark]: RCFGBuilder took 239.81 ms. Allocated memory is still 96.5 MB. Free memory was 71.8 MB in the beginning and 63.5 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:36:32,378 INFO L168 Benchmark]: BuchiAutomizer took 1491.14 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 63.5 MB in the beginning and 75.1 MB in the end (delta: -11.5 MB). Peak memory consumption was 12.9 MB. Max. memory is 16.1 GB. [2021-10-21 19:36:32,378 INFO L168 Benchmark]: Witness Printer took 3.77 ms. Allocated memory is still 117.4 MB. Free memory is still 75.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:36:32,382 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 96.5 MB. Free memory was 68.2 MB in the beginning and 68.2 MB in the end (delta: 29.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 288.80 ms. Allocated memory is still 96.5 MB. Free memory was 61.8 MB in the beginning and 73.9 MB in the end (delta: -12.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.05 ms. Allocated memory is still 96.5 MB. Free memory was 73.9 MB in the beginning and 72.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.63 ms. Allocated memory is still 96.5 MB. Free memory was 72.7 MB in the beginning and 71.9 MB in the end (delta: 819.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 239.81 ms. Allocated memory is still 96.5 MB. Free memory was 71.8 MB in the beginning and 63.5 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1491.14 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 63.5 MB in the beginning and 75.1 MB in the end (delta: -11.5 MB). Peak memory consumption was 12.9 MB. Max. memory is 16.1 GB. * Witness Printer took 3.77 ms. Allocated memory is still 117.4 MB. Free memory is still 75.1 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function a and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 6 SDtfs, 6 SDslu, 10 SDs, 0 SdLazy, 7 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.4ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax100 hnf100 lsp78 ukn100 mio100 lsp100 div500 bol100 ite100 ukn100 eq131 hnf46 smp57 dnf100 smp100 tf106 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 35ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-21 19:36:32,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbbba38-bb9d-4f7a-816c-06b121a4f776/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:36:32,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efbbba38-bb9d-4f7a-816c-06b121a4f776/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...