./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/c.01-no-inv.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/c.01-no-inv.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8 --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 b152d0a77c0a827c56e67a020428723a5ece98968c26b23e643be1f19b0bbb84 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 13:43:49,380 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:43:49,382 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:43:49,399 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:43:49,400 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:43:49,401 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:43:49,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:43:49,403 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:43:49,405 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:43:49,405 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:43:49,406 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:43:49,407 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:43:49,408 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:43:49,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:43:49,409 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:43:49,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:43:49,411 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:43:49,412 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:43:49,414 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:43:49,415 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:43:49,417 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:43:49,418 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:43:49,419 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:43:49,420 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:43:49,423 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:43:49,423 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:43:49,424 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:43:49,425 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:43:49,425 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:43:49,426 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:43:49,426 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:43:49,427 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:43:49,427 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:43:49,428 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:43:49,429 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:43:49,429 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:43:49,430 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:43:49,430 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:43:49,430 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:43:49,431 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:43:49,431 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:43:49,432 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-12-13 13:43:49,460 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:43:49,460 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:43:49,471 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:43:49,471 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:43:49,472 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:43:49,473 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:43:49,473 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:43:49,473 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 13:43:49,473 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 13:43:49,473 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 13:43:49,473 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 13:43:49,474 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 13:43:49,474 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 13:43:49,474 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:43:49,474 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 13:43:49,474 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:43:49,474 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:43:49,475 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 13:43:49,475 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 13:43:49,475 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 13:43:49,475 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:43:49,475 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 13:43:49,475 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:43:49,476 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 13:43:49,476 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:43:49,476 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:43:49,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:43:49,476 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:43:49,477 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 13:43:49,477 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_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b152d0a77c0a827c56e67a020428723a5ece98968c26b23e643be1f19b0bbb84 [2022-12-13 13:43:49,672 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:43:49,691 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:43:49,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:43:49,695 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:43:49,695 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:43:49,696 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/termination-restricted-15/c.01-no-inv.c [2022-12-13 13:43:52,364 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:43:52,531 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:43:52,532 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/sv-benchmarks/c/termination-restricted-15/c.01-no-inv.c [2022-12-13 13:43:52,537 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/data/b7f47d1b7/202ce517deb04ffcabd2707a0458708e/FLAG47a9a4360 [2022-12-13 13:43:52,551 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/data/b7f47d1b7/202ce517deb04ffcabd2707a0458708e [2022-12-13 13:43:52,553 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:43:52,555 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:43:52,556 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:43:52,556 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:43:52,559 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:43:52,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:43:52" (1/1) ... [2022-12-13 13:43:52,561 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dd67af6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:43:52, skipping insertion in model container [2022-12-13 13:43:52,561 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:43:52" (1/1) ... [2022-12-13 13:43:52,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:43:52,580 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:43:52,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:43:52,699 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:43:52,711 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:43:52,722 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:43:52,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:43:52 WrapperNode [2022-12-13 13:43:52,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:43:52,723 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:43:52,724 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:43:52,724 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:43:52,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:43:52" (1/1) ... [2022-12-13 13:43:52,734 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:43:52" (1/1) ... [2022-12-13 13:43:52,748 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2022-12-13 13:43:52,748 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:43:52,749 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:43:52,749 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:43:52,749 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:43:52,757 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:43:52" (1/1) ... [2022-12-13 13:43:52,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:43:52" (1/1) ... [2022-12-13 13:43:52,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:43:52" (1/1) ... [2022-12-13 13:43:52,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:43:52" (1/1) ... [2022-12-13 13:43:52,759 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:43:52" (1/1) ... [2022-12-13 13:43:52,763 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:43:52" (1/1) ... [2022-12-13 13:43:52,763 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:43:52" (1/1) ... [2022-12-13 13:43:52,764 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:43:52" (1/1) ... [2022-12-13 13:43:52,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:43:52,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:43:52,766 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:43:52,766 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:43:52,767 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:43:52" (1/1) ... [2022-12-13 13:43:52,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:43:52,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:43:52,794 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:43:52,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 13:43:52,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:43:52,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:43:52,903 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:43:52,905 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:43:52,942 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:43:52,947 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:43:52,947 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 13:43:52,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:43:52 BoogieIcfgContainer [2022-12-13 13:43:52,948 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:43:52,949 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 13:43:52,949 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 13:43:52,951 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 13:43:52,952 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 13:43:52,952 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 01:43:52" (1/3) ... [2022-12-13 13:43:52,953 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7cff0d07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 01:43:52, skipping insertion in model container [2022-12-13 13:43:52,953 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 13:43:52,953 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:43:52" (2/3) ... [2022-12-13 13:43:52,953 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7cff0d07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 01:43:52, skipping insertion in model container [2022-12-13 13:43:52,953 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 13:43:52,953 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:43:52" (3/3) ... [2022-12-13 13:43:52,954 INFO L332 chiAutomizerObserver]: Analyzing ICFG c.01-no-inv.c [2022-12-13 13:43:52,992 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 13:43:52,992 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 13:43:52,992 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 13:43:52,993 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 13:43:52,993 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 13:43:52,993 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 13:43:52,993 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 13:43:52,993 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 13:43:52,997 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2022-12-13 13:43:53,009 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-12-13 13:43:53,009 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 13:43:53,009 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 13:43:53,012 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 13:43:53,013 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 13:43:53,013 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 13:43:53,013 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2022-12-13 13:43:53,013 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-12-13 13:43:53,014 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 13:43:53,014 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 13:43:53,014 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 13:43:53,014 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 13:43:53,019 INFO L748 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 4#L10-2true [2022-12-13 13:43:53,020 INFO L750 eck$LassoCheckResult]: Loop: 4#L10-2true assume !!(main_~x~0#1 >= 0);main_~y~0#1 := 1; 2#L12-2true assume !(main_~x~0#1 > main_~y~0#1 && main_~y~0#1 < 1073741824); 5#L12-3true main_~x~0#1 := main_~x~0#1 - 1; 4#L10-2true [2022-12-13 13:43:53,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:43:53,024 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-12-13 13:43:53,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:43:53,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985986198] [2022-12-13 13:43:53,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:43:53,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:43:53,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:43:53,086 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:43:53,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:43:53,100 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:43:53,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:43:53,102 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2022-12-13 13:43:53,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:43:53,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560071099] [2022-12-13 13:43:53,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:43:53,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:43:53,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:43:53,112 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:43:53,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:43:53,116 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:43:53,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:43:53,117 INFO L85 PathProgramCache]: Analyzing trace with hash 28699886, now seen corresponding path program 1 times [2022-12-13 13:43:53,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:43:53,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89369869] [2022-12-13 13:43:53,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:43:53,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:43:53,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:43:53,123 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:43:53,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:43:53,127 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:43:53,193 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 13:43:53,193 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 13:43:53,193 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 13:43:53,193 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 13:43:53,194 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 13:43:53,194 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:43:53,194 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 13:43:53,194 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 13:43:53,194 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv.c_Iteration1_Loop [2022-12-13 13:43:53,194 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 13:43:53,194 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 13:43:53,208 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:43:53,217 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:43:53,220 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:43:53,273 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 13:43:53,273 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 13:43:53,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:43:53,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:43:53,276 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:43:53,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-12-13 13:43:53,279 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 13:43:53,279 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 13:43:53,302 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 13:43:53,302 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: [] [2022-12-13 13:43:53,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-12-13 13:43:53,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:43:53,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:43:53,309 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:43:53,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-12-13 13:43:53,311 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 13:43:53,311 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 13:43:53,332 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 13:43:53,332 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: [] [2022-12-13 13:43:53,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-12-13 13:43:53,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:43:53,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:43:53,336 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:43:53,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-12-13 13:43:53,339 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 13:43:53,339 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 13:43:53,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-12-13 13:43:53,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:43:53,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:43:53,356 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:43:53,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-12-13 13:43:53,359 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 13:43:53,359 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 13:43:53,386 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 13:43:53,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-12-13 13:43:53,389 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 13:43:53,389 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 13:43:53,389 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 13:43:53,389 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 13:43:53,389 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 13:43:53,389 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:43:53,390 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 13:43:53,390 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 13:43:53,390 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv.c_Iteration1_Loop [2022-12-13 13:43:53,390 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 13:43:53,390 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 13:43:53,392 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:43:53,395 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:43:53,404 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:43:53,444 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 13:43:53,448 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 13:43:53,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:43:53,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:43:53,450 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:43:53,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-12-13 13:43:53,452 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 [2022-12-13 13:43:53,463 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 13:43:53,463 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 13:43:53,463 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 13:43:53,463 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 13:43:53,468 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 13:43:53,468 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 13:43:53,472 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 13:43:53,476 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-12-13 13:43:53,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:43:53,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:43:53,477 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:43:53,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-12-13 13:43:53,479 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 [2022-12-13 13:43:53,489 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 13:43:53,490 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 13:43:53,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 13:43:53,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 13:43:53,490 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 13:43:53,492 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 13:43:53,492 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 13:43:53,495 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 13:43:53,499 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 13:43:53,499 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-12-13 13:43:53,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:43:53,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:43:53,524 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:43:53,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-12-13 13:43:53,526 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 13:43:53,526 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 13:43:53,526 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 13:43:53,526 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 2*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [] [2022-12-13 13:43:53,529 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-12-13 13:43:53,532 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 13:43:53,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:43:53,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:43:53,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 13:43:53,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:43:53,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:43:53,568 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 13:43:53,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:43:53,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:43:53,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-12-13 13:43:53,628 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-12-13 13:43:53,630 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:43:53,668 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 36 transitions. Complement of second has 7 states. [2022-12-13 13:43:53,669 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 [2022-12-13 13:43:53,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:43:53,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2022-12-13 13:43:53,674 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 3 letters. [2022-12-13 13:43:53,674 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 13:43:53,674 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 5 letters. Loop has 3 letters. [2022-12-13 13:43:53,674 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 13:43:53,675 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 6 letters. [2022-12-13 13:43:53,675 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 13:43:53,675 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 36 transitions. [2022-12-13 13:43:53,677 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-12-13 13:43:53,679 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 8 states and 11 transitions. [2022-12-13 13:43:53,679 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2022-12-13 13:43:53,680 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2022-12-13 13:43:53,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2022-12-13 13:43:53,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 13:43:53,680 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-12-13 13:43:53,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2022-12-13 13:43:53,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2022-12-13 13:43:53,696 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) [2022-12-13 13:43:53,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2022-12-13 13:43:53,696 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2022-12-13 13:43:53,696 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2022-12-13 13:43:53,697 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 13:43:53,697 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2022-12-13 13:43:53,697 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-12-13 13:43:53,697 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 13:43:53,697 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 13:43:53,697 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-12-13 13:43:53,697 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-12-13 13:43:53,698 INFO L748 eck$LassoCheckResult]: Stem: 79#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 80#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 77#L10-2 assume !!(main_~x~0#1 >= 0);main_~y~0#1 := 1; 74#L12-2 [2022-12-13 13:43:53,698 INFO L750 eck$LassoCheckResult]: Loop: 74#L12-2 assume !!(main_~x~0#1 > main_~y~0#1 && main_~y~0#1 < 1073741824);main_~y~0#1 := 2 * main_~y~0#1; 74#L12-2 [2022-12-13 13:43:53,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:43:53,698 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-12-13 13:43:53,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:43:53,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921206007] [2022-12-13 13:43:53,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:43:53,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:43:53,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:43:53,702 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:43:53,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:43:53,704 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:43:53,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:43:53,704 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2022-12-13 13:43:53,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:43:53,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030924599] [2022-12-13 13:43:53,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:43:53,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:43:53,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:43:53,708 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:43:53,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:43:53,711 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:43:53,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:43:53,712 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2022-12-13 13:43:53,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:43:53,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626770111] [2022-12-13 13:43:53,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:43:53,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:43:53,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:43:53,715 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:43:53,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:43:53,720 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:43:53,746 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 13:43:53,746 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 13:43:53,746 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 13:43:53,746 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 13:43:53,746 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 13:43:53,747 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:43:53,747 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 13:43:53,747 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 13:43:53,747 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv.c_Iteration2_Lasso [2022-12-13 13:43:53,747 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 13:43:53,747 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 13:43:53,749 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:43:53,751 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:43:53,760 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:43:53,763 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:43:53,765 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:43:53,767 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:43:53,769 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:43:53,817 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 13:43:53,817 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 13:43:53,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:43:53,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:43:53,818 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:43:53,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-12-13 13:43:53,821 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 13:43:53,821 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 13:43:53,843 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 13:43:53,843 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: [] [2022-12-13 13:43:53,847 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-12-13 13:43:53,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:43:53,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:43:53,848 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:43:53,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-12-13 13:43:53,850 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 13:43:53,851 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 13:43:53,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-12-13 13:43:53,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:43:53,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:43:53,875 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:43:53,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-12-13 13:43:53,877 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 13:43:53,877 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 13:43:53,900 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 13:43:53,903 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2022-12-13 13:43:53,904 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 13:43:53,904 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 13:43:53,904 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 13:43:53,904 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 13:43:53,904 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 13:43:53,904 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:43:53,904 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 13:43:53,904 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 13:43:53,904 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv.c_Iteration2_Lasso [2022-12-13 13:43:53,904 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 13:43:53,904 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 13:43:53,906 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:43:53,908 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:43:53,916 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:43:53,918 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:43:53,920 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:43:53,922 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:43:53,924 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:43:53,965 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 13:43:53,966 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 13:43:53,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:43:53,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:43:53,967 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:43:53,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-12-13 13:43:53,969 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 [2022-12-13 13:43:53,979 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 13:43:53,979 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 13:43:53,979 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 13:43:53,979 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 13:43:53,982 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 13:43:53,982 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 13:43:53,985 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 13:43:53,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2022-12-13 13:43:53,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:43:53,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:43:53,990 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:43:53,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-12-13 13:43:53,992 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 [2022-12-13 13:43:54,002 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 13:43:54,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 13:43:54,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 13:43:54,003 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 13:43:54,008 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 13:43:54,008 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 13:43:54,019 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 13:43:54,029 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-12-13 13:43:54,030 INFO L444 ModelExtractionUtils]: 1 out of 10 variables were initially zero. Simplification set additionally 4 variables to zero. [2022-12-13 13:43:54,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:43:54,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:43:54,031 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:43:54,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-12-13 13:43:54,033 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 13:43:54,045 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2022-12-13 13:43:54,045 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 13:43:54,045 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = -2*ULTIMATE.start_main_~y~0#1 + 2147483647 Supporting invariants [1*ULTIMATE.start_main_~y~0#1 - 1 >= 0] [2022-12-13 13:43:54,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2022-12-13 13:43:54,053 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2022-12-13 13:43:54,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:43:54,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:43:54,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 13:43:54,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:43:54,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:43:54,085 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 13:43:54,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:43:54,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:43:54,086 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-12-13 13:43:54,087 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2022-12-13 13:43:54,109 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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 14 states and 19 transitions. Complement of second has 5 states. [2022-12-13 13:43:54,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-12-13 13:43:54,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2022-12-13 13:43:54,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2022-12-13 13:43:54,110 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 1 letters. [2022-12-13 13:43:54,110 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 13:43:54,110 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 1 letters. [2022-12-13 13:43:54,110 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 13:43:54,110 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2022-12-13 13:43:54,110 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 13:43:54,110 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2022-12-13 13:43:54,111 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-12-13 13:43:54,112 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 10 states and 14 transitions. [2022-12-13 13:43:54,112 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2022-12-13 13:43:54,112 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2022-12-13 13:43:54,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 14 transitions. [2022-12-13 13:43:54,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 13:43:54,112 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 14 transitions. [2022-12-13 13:43:54,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 14 transitions. [2022-12-13 13:43:54,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 7. [2022-12-13 13:43:54,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) 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) [2022-12-13 13:43:54,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2022-12-13 13:43:54,113 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2022-12-13 13:43:54,114 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2022-12-13 13:43:54,114 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 13:43:54,114 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2022-12-13 13:43:54,114 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-12-13 13:43:54,114 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 13:43:54,114 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 13:43:54,115 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2022-12-13 13:43:54,115 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-12-13 13:43:54,115 INFO L748 eck$LassoCheckResult]: Stem: 140#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 141#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 138#L10-2 assume !!(main_~x~0#1 >= 0);main_~y~0#1 := 1; 136#L12-2 assume !(main_~x~0#1 > main_~y~0#1 && main_~y~0#1 < 1073741824); 137#L12-3 main_~x~0#1 := main_~x~0#1 - 1; 139#L10-2 assume !!(main_~x~0#1 >= 0);main_~y~0#1 := 1; 135#L12-2 [2022-12-13 13:43:54,115 INFO L750 eck$LassoCheckResult]: Loop: 135#L12-2 assume !!(main_~x~0#1 > main_~y~0#1 && main_~y~0#1 < 1073741824);main_~y~0#1 := 2 * main_~y~0#1; 135#L12-2 [2022-12-13 13:43:54,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:43:54,116 INFO L85 PathProgramCache]: Analyzing trace with hash 889696477, now seen corresponding path program 2 times [2022-12-13 13:43:54,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:43:54,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127055048] [2022-12-13 13:43:54,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:43:54,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:43:54,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:43:54,121 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:43:54,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:43:54,124 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:43:54,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:43:54,125 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 2 times [2022-12-13 13:43:54,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:43:54,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172704317] [2022-12-13 13:43:54,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:43:54,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:43:54,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:43:54,128 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:43:54,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:43:54,131 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:43:54,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:43:54,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1810787031, now seen corresponding path program 1 times [2022-12-13 13:43:54,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:43:54,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005549292] [2022-12-13 13:43:54,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:43:54,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:43:54,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:43:54,191 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:43:54,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:43:54,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005549292] [2022-12-13 13:43:54,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005549292] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:43:54,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223929836] [2022-12-13 13:43:54,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:43:54,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:43:54,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:43:54,193 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:43:54,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-13 13:43:54,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:43:54,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 13:43:54,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:43:54,250 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:43:54,251 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:43:54,298 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:43:54,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223929836] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:43:54,298 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:43:54,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-12-13 13:43:54,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062424430] [2022-12-13 13:43:54,299 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:43:54,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:43:54,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 13:43:54,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:43:54,317 INFO L87 Difference]: Start difference. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 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) [2022-12-13 13:43:54,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:43:54,391 INFO L93 Difference]: Finished difference Result 21 states and 26 transitions. [2022-12-13 13:43:54,391 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 26 transitions. [2022-12-13 13:43:54,393 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-12-13 13:43:54,393 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 11 states and 13 transitions. [2022-12-13 13:43:54,393 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-12-13 13:43:54,393 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2022-12-13 13:43:54,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 13 transitions. [2022-12-13 13:43:54,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 13:43:54,394 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 13 transitions. [2022-12-13 13:43:54,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 13 transitions. [2022-12-13 13:43:54,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-12-13 13:43:54,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.2222222222222223) 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) [2022-12-13 13:43:54,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2022-12-13 13:43:54,395 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 11 transitions. [2022-12-13 13:43:54,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 13:43:54,396 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2022-12-13 13:43:54,396 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-12-13 13:43:54,396 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions. [2022-12-13 13:43:54,397 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-12-13 13:43:54,397 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 13:43:54,397 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 13:43:54,397 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2022-12-13 13:43:54,397 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-12-13 13:43:54,397 INFO L748 eck$LassoCheckResult]: Stem: 230#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 231#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 227#L10-2 assume !!(main_~x~0#1 >= 0);main_~y~0#1 := 1; 225#L12-2 assume !!(main_~x~0#1 > main_~y~0#1 && main_~y~0#1 < 1073741824);main_~y~0#1 := 2 * main_~y~0#1; 226#L12-2 assume !!(main_~x~0#1 > main_~y~0#1 && main_~y~0#1 < 1073741824);main_~y~0#1 := 2 * main_~y~0#1; 232#L12-2 assume !(main_~x~0#1 > main_~y~0#1 && main_~y~0#1 < 1073741824); 229#L12-3 main_~x~0#1 := main_~x~0#1 - 1; 228#L10-2 assume !!(main_~x~0#1 >= 0);main_~y~0#1 := 1; 224#L12-2 [2022-12-13 13:43:54,398 INFO L750 eck$LassoCheckResult]: Loop: 224#L12-2 assume !!(main_~x~0#1 > main_~y~0#1 && main_~y~0#1 < 1073741824);main_~y~0#1 := 2 * main_~y~0#1; 224#L12-2 [2022-12-13 13:43:54,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:43:54,398 INFO L85 PathProgramCache]: Analyzing trace with hash 301557853, now seen corresponding path program 2 times [2022-12-13 13:43:54,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:43:54,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259079694] [2022-12-13 13:43:54,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:43:54,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:43:54,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:43:54,405 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:43:54,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:43:54,409 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:43:54,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:43:54,410 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 3 times [2022-12-13 13:43:54,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:43:54,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269819159] [2022-12-13 13:43:54,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:43:54,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:43:54,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:43:54,412 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:43:54,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:43:54,414 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:43:54,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:43:54,414 INFO L85 PathProgramCache]: Analyzing trace with hash 758358871, now seen corresponding path program 3 times [2022-12-13 13:43:54,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:43:54,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501317993] [2022-12-13 13:43:54,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:43:54,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:43:54,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:43:54,420 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:43:54,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:43:54,425 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:43:54,480 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 13:43:54,480 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 13:43:54,480 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 13:43:54,480 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 13:43:54,480 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 13:43:54,480 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:43:54,480 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 13:43:54,481 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 13:43:54,481 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv.c_Iteration4_Lasso [2022-12-13 13:43:54,481 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 13:43:54,481 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 13:43:54,482 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:43:54,491 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:43:54,493 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:43:54,495 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:43:54,496 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:43:54,498 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:43:54,499 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:43:54,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-12-13 13:43:54,550 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 13:43:54,551 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 13:43:54,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:43:54,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:43:54,552 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:43:54,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-12-13 13:43:54,554 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 13:43:54,554 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 13:43:54,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2022-12-13 13:43:54,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:43:54,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:43:54,570 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:43:54,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-12-13 13:43:54,573 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 13:43:54,573 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 13:43:54,596 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 13:43:54,599 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2022-12-13 13:43:54,599 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 13:43:54,599 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 13:43:54,599 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 13:43:54,599 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 13:43:54,599 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 13:43:54,600 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:43:54,600 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 13:43:54,600 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 13:43:54,600 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01-no-inv.c_Iteration4_Lasso [2022-12-13 13:43:54,600 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 13:43:54,600 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 13:43:54,601 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:43:54,610 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:43:54,613 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:43:54,614 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:43:54,615 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:43:54,616 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:43:54,618 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 13:43:54,651 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 13:43:54,651 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 13:43:54,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:43:54,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:43:54,652 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:43:54,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-12-13 13:43:54,654 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 [2022-12-13 13:43:54,664 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 13:43:54,664 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 13:43:54,664 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 13:43:54,664 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 13:43:54,668 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 13:43:54,669 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 13:43:54,677 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 13:43:54,683 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2022-12-13 13:43:54,683 INFO L444 ModelExtractionUtils]: 3 out of 10 variables were initially zero. Simplification set additionally 2 variables to zero. [2022-12-13 13:43:54,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:43:54,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:43:54,685 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:43:54,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-12-13 13:43:54,687 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 13:43:54,699 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2022-12-13 13:43:54,699 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 13:43:54,699 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = -2*ULTIMATE.start_main_~y~0#1 + 2147483647 Supporting invariants [1*ULTIMATE.start_main_~y~0#1 - 1 >= 0] [2022-12-13 13:43:54,702 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2022-12-13 13:43:54,704 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2022-12-13 13:43:54,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:43:54,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:43:54,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 13:43:54,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:43:54,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:43:54,735 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 13:43:54,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:43:54,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:43:54,736 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-12-13 13:43:54,736 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:43:54,754 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 20 transitions. Complement of second has 5 states. [2022-12-13 13:43:54,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-12-13 13:43:54,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:43:54,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2022-12-13 13:43:54,756 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 8 letters. Loop has 1 letters. [2022-12-13 13:43:54,756 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 13:43:54,756 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-12-13 13:43:54,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:43:54,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:43:54,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 13:43:54,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:43:54,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:43:54,791 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 13:43:54,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:43:54,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:43:54,792 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2022-12-13 13:43:54,792 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:43:54,809 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 20 transitions. Complement of second has 5 states. [2022-12-13 13:43:54,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-12-13 13:43:54,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:43:54,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2022-12-13 13:43:54,811 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 8 letters. Loop has 1 letters. [2022-12-13 13:43:54,811 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 13:43:54,811 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-12-13 13:43:54,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:43:54,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:43:54,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 13:43:54,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:43:54,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:43:54,841 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 13:43:54,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:43:54,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:43:54,841 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-12-13 13:43:54,842 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:43:54,859 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 14 transitions. Complement of second has 4 states. [2022-12-13 13:43:54,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-12-13 13:43:54,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:43:54,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2022-12-13 13:43:54,860 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 8 letters. Loop has 1 letters. [2022-12-13 13:43:54,860 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 13:43:54,860 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 1 letters. [2022-12-13 13:43:54,861 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 13:43:54,861 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 8 letters. Loop has 2 letters. [2022-12-13 13:43:54,861 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 13:43:54,861 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2022-12-13 13:43:54,862 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-12-13 13:43:54,862 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2022-12-13 13:43:54,862 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-12-13 13:43:54,862 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-12-13 13:43:54,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-12-13 13:43:54,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:43:54,863 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 13:43:54,863 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 13:43:54,863 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 13:43:54,863 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-12-13 13:43:54,863 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-12-13 13:43:54,863 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-12-13 13:43:54,863 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-12-13 13:43:54,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 01:43:54 BoogieIcfgContainer [2022-12-13 13:43:54,870 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 13:43:54,871 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 13:43:54,871 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 13:43:54,871 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 13:43:54,871 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:43:52" (3/4) ... [2022-12-13 13:43:54,873 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 13:43:54,873 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 13:43:54,874 INFO L158 Benchmark]: Toolchain (without parser) took 2319.27ms. Allocated memory was 140.5MB in the beginning and 195.0MB in the end (delta: 54.5MB). Free memory was 105.7MB in the beginning and 132.8MB in the end (delta: -27.0MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2022-12-13 13:43:54,874 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 140.5MB. Free memory is still 107.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:43:54,875 INFO L158 Benchmark]: CACSL2BoogieTranslator took 166.64ms. Allocated memory is still 140.5MB. Free memory was 105.7MB in the beginning and 96.4MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 13:43:54,875 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.85ms. Allocated memory is still 140.5MB. Free memory was 96.4MB in the beginning and 95.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:43:54,875 INFO L158 Benchmark]: Boogie Preprocessor took 16.35ms. Allocated memory is still 140.5MB. Free memory was 95.3MB in the beginning and 94.3MB in the end (delta: 935.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:43:54,876 INFO L158 Benchmark]: RCFGBuilder took 182.44ms. Allocated memory is still 140.5MB. Free memory was 94.3MB in the beginning and 85.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 13:43:54,876 INFO L158 Benchmark]: BuchiAutomizer took 1921.35ms. Allocated memory was 140.5MB in the beginning and 195.0MB in the end (delta: 54.5MB). Free memory was 85.9MB in the beginning and 133.8MB in the end (delta: -47.9MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2022-12-13 13:43:54,877 INFO L158 Benchmark]: Witness Printer took 2.78ms. Allocated memory is still 195.0MB. Free memory was 133.8MB in the beginning and 132.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:43:54,879 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 140.5MB. Free memory is still 107.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 166.64ms. Allocated memory is still 140.5MB. Free memory was 105.7MB in the beginning and 96.4MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.85ms. Allocated memory is still 140.5MB. Free memory was 96.4MB in the beginning and 95.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.35ms. Allocated memory is still 140.5MB. Free memory was 95.3MB in the beginning and 94.3MB in the end (delta: 935.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 182.44ms. Allocated memory is still 140.5MB. Free memory was 94.3MB in the beginning and 85.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1921.35ms. Allocated memory was 140.5MB in the beginning and 195.0MB in the end (delta: 54.5MB). Free memory was 85.9MB in the beginning and 133.8MB in the end (delta: -47.9MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * Witness Printer took 2.78ms. Allocated memory is still 195.0MB. Free memory was 133.8MB in the beginning and 132.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function 2 * x + 1 and consists of 5 locations. One deterministic module has affine ranking function 2147483647 + -2 * y and consists of 3 locations. One nondeterministic module has affine ranking function 2147483647 + -2 * y and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 39 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 45 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 66 IncrementalHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 31 mSDtfsCounter, 66 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax157 hnf100 lsp58 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq151 hnf93 smp100 dnf100 smp100 tf102 neg97 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 23ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-12-13 13:43:54,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-12-13 13:43:55,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-12-13 13:43:55,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7c76458-cf06-4e4d-b200-ab4c7e507bfd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE