./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-numeric/TwoWay.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-numeric/TwoWay.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS --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 6e96af222dc7427442f09a30ad05a811063c14ee1b704442df6b3bb77339a035 --- 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-4e7fbc6 [2022-11-23 03:10:23,732 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:10:23,740 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:10:23,763 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:10:23,763 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:10:23,765 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:10:23,766 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:10:23,768 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:10:23,770 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:10:23,771 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:10:23,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:10:23,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:10:23,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:10:23,776 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:10:23,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:10:23,778 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:10:23,779 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:10:23,780 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:10:23,782 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:10:23,785 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:10:23,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:10:23,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:10:23,789 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:10:23,790 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:10:23,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:10:23,795 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:10:23,795 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:10:23,796 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:10:23,797 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:10:23,798 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:10:23,798 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:10:23,799 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:10:23,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:10:23,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:10:23,803 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:10:23,803 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:10:23,804 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:10:23,804 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:10:23,804 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:10:23,805 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:10:23,806 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:10:23,807 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-23 03:10:23,847 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:10:23,852 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:10:23,853 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:10:23,854 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:10:23,856 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:10:23,856 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:10:23,856 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:10:23,856 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-23 03:10:23,857 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-23 03:10:23,857 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-23 03:10:23,858 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-23 03:10:23,858 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-23 03:10:23,858 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-23 03:10:23,859 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:10:23,859 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 03:10:23,859 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:10:23,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:10:23,860 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-23 03:10:23,860 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-23 03:10:23,860 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-23 03:10:23,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:10:23,861 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-23 03:10:23,861 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:10:23,861 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-23 03:10:23,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:10:23,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:10:23,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:10:23,862 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:10:23,863 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-23 03:10:23,864 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_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e96af222dc7427442f09a30ad05a811063c14ee1b704442df6b3bb77339a035 [2022-11-23 03:10:24,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:10:24,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:10:24,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:10:24,138 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:10:24,138 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:10:24,140 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/termination-numeric/TwoWay.c [2022-11-23 03:10:27,207 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:10:27,462 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:10:27,462 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/sv-benchmarks/c/termination-numeric/TwoWay.c [2022-11-23 03:10:27,475 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/data/b0d56ab2f/d23c8300ed5e4987a3586e9ecc30b359/FLAG6dd9ce656 [2022-11-23 03:10:27,490 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/data/b0d56ab2f/d23c8300ed5e4987a3586e9ecc30b359 [2022-11-23 03:10:27,493 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:10:27,495 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:10:27,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:10:27,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:10:27,500 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:10:27,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:10:27" (1/1) ... [2022-11-23 03:10:27,502 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@99c3e18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:27, skipping insertion in model container [2022-11-23 03:10:27,502 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:10:27" (1/1) ... [2022-11-23 03:10:27,510 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:10:27,523 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:10:27,658 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:10:27,662 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:10:27,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:10:27,686 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:10:27,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:27 WrapperNode [2022-11-23 03:10:27,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:10:27,687 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:10:27,688 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:10:27,688 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:10:27,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:27" (1/1) ... [2022-11-23 03:10:27,701 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:27" (1/1) ... [2022-11-23 03:10:27,718 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2022-11-23 03:10:27,719 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:10:27,722 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:10:27,722 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:10:27,723 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:10:27,731 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:27" (1/1) ... [2022-11-23 03:10:27,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:27" (1/1) ... [2022-11-23 03:10:27,733 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:27" (1/1) ... [2022-11-23 03:10:27,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:27" (1/1) ... [2022-11-23 03:10:27,737 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:27" (1/1) ... [2022-11-23 03:10:27,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:27" (1/1) ... [2022-11-23 03:10:27,741 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:27" (1/1) ... [2022-11-23 03:10:27,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:27" (1/1) ... [2022-11-23 03:10:27,743 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:10:27,745 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:10:27,745 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:10:27,745 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:10:27,746 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:27" (1/1) ... [2022-11-23 03:10:27,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:10:27,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:27,779 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:10:27,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-23 03:10:27,819 INFO L130 BoogieDeclarations]: Found specification of procedure twoWay [2022-11-23 03:10:27,819 INFO L138 BoogieDeclarations]: Found implementation of procedure twoWay [2022-11-23 03:10:27,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:10:27,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:10:27,869 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:10:27,871 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:10:27,963 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:10:27,976 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:10:27,977 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 03:10:27,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:10:27 BoogieIcfgContainer [2022-11-23 03:10:27,979 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:10:27,980 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-23 03:10:27,980 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-23 03:10:27,984 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-23 03:10:27,985 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-23 03:10:27,985 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 03:10:27" (1/3) ... [2022-11-23 03:10:27,986 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c405f8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 03:10:27, skipping insertion in model container [2022-11-23 03:10:27,986 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-23 03:10:27,986 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:10:27" (2/3) ... [2022-11-23 03:10:27,987 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c405f8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 03:10:27, skipping insertion in model container [2022-11-23 03:10:27,987 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-23 03:10:27,987 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:10:27" (3/3) ... [2022-11-23 03:10:27,988 INFO L332 chiAutomizerObserver]: Analyzing ICFG TwoWay.c [2022-11-23 03:10:28,038 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-23 03:10:28,038 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-23 03:10:28,038 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-23 03:10:28,038 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-23 03:10:28,039 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-23 03:10:28,039 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-23 03:10:28,039 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-23 03:10:28,039 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-23 03:10:28,043 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 03:10:28,065 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-23 03:10:28,066 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 03:10:28,066 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 03:10:28,072 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-23 03:10:28,072 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-23 03:10:28,073 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-23 03:10:28,073 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 03:10:28,074 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-23 03:10:28,075 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 03:10:28,075 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 03:10:28,075 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-23 03:10:28,075 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-23 03:10:28,084 INFO L748 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~ret6#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 8#L42true assume !(main_~x~0#1 < 0);main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 13#L45true assume !(main_~y~0#1 < 0);main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 15#L48true call main_#t~ret6#1 := twoWay(1, main_~x~0#1);< 4#twoWayENTRYtrue [2022-11-23 03:10:28,084 INFO L750 eck$LassoCheckResult]: Loop: 4#twoWayENTRYtrue ~terminate := #in~terminate;~n := #in~n; 11#L27true assume !(~n < 0);~m~0 := ~n; 12#L31true assume 0 != ~terminate;#t~post0 := ~m~0;~m~0 := #t~post0 - 1;havoc #t~post0; 7#L31-2true call #t~ret2 := twoWay(~terminate, ~m~0);< 4#twoWayENTRYtrue [2022-11-23 03:10:28,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:10:28,090 INFO L85 PathProgramCache]: Analyzing trace with hash 42056122, now seen corresponding path program 1 times [2022-11-23 03:10:28,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:10:28,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313727983] [2022-11-23 03:10:28,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:10:28,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:10:28,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:10:28,172 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:10:28,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:10:28,194 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:10:28,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:10:28,198 INFO L85 PathProgramCache]: Analyzing trace with hash 927614, now seen corresponding path program 1 times [2022-11-23 03:10:28,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:10:28,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927699400] [2022-11-23 03:10:28,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:10:28,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:10:28,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:10:28,212 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:10:28,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:10:28,219 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:10:28,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:10:28,222 INFO L85 PathProgramCache]: Analyzing trace with hash 322591927, now seen corresponding path program 1 times [2022-11-23 03:10:28,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:10:28,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337208975] [2022-11-23 03:10:28,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:10:28,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:10:28,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:10:28,237 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:10:28,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:10:28,249 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:10:28,501 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 03:10:28,501 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 03:10:28,502 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 03:10:28,502 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 03:10:28,502 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-23 03:10:28,502 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:10:28,502 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 03:10:28,503 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 03:10:28,503 INFO L133 ssoRankerPreferences]: Filename of dumped script: TwoWay.c_Iteration1_Loop [2022-11-23 03:10:28,503 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 03:10:28,503 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 03:10:28,523 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:10:28,543 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:10:28,551 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:10:28,560 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:10:28,565 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:10:28,571 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:10:28,598 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:10:28,605 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:10:28,609 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:10:28,710 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 03:10:28,713 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-23 03:10:28,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:10:28,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:28,722 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:10:28,729 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 03:10:28,729 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:10:28,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-23 03:10:28,764 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 03:10:28,765 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_#t~ret2=0} Honda state: {twoWay_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-23 03:10:28,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-23 03:10:28,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:10:28,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:28,779 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:10:28,794 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 03:10:28,794 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:10:28,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-23 03:10:28,817 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 03:10:28,817 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_~m~0=0} Honda state: {twoWay_~m~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-23 03:10:28,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-23 03:10:28,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:10:28,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:28,825 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:10:28,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-23 03:10:28,839 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 03:10:28,839 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:10:28,863 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 03:10:28,863 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_~terminate=0} Honda state: {twoWay_~terminate=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-23 03:10:28,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-23 03:10:28,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:10:28,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:28,868 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:10:28,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-23 03:10:28,875 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 03:10:28,875 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:10:28,888 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 03:10:28,888 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_#res=0} Honda state: {twoWay_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-23 03:10:28,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-11-23 03:10:28,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:10:28,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:28,897 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:10:28,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-23 03:10:28,901 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 03:10:28,901 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:10:28,916 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 03:10:28,916 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_~n=0} Honda state: {twoWay_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-23 03:10:28,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-23 03:10:28,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:10:28,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:28,925 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:10:28,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-23 03:10:28,939 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 03:10:28,940 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:10:28,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-23 03:10:28,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:10:28,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:28,966 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:10:28,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-23 03:10:28,969 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-23 03:10:28,969 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:10:28,992 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-23 03:10:29,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-23 03:10:29,004 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 03:10:29,004 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 03:10:29,004 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 03:10:29,004 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 03:10:29,004 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-23 03:10:29,004 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:10:29,004 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 03:10:29,004 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 03:10:29,005 INFO L133 ssoRankerPreferences]: Filename of dumped script: TwoWay.c_Iteration1_Loop [2022-11-23 03:10:29,005 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 03:10:29,005 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 03:10:29,006 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:10:29,015 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:10:29,020 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:10:29,025 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:10:29,037 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:10:29,044 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:10:29,053 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:10:29,056 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:10:29,060 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:10:29,158 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 03:10:29,163 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-23 03:10:29,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:10:29,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:29,175 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:10:29,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-23 03:10:29,180 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 [2022-11-23 03:10:29,191 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 03:10:29,191 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 03:10:29,191 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 03:10:29,191 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 03:10:29,192 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 03:10:29,194 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 03:10:29,194 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 03:10:29,204 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 03:10:29,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-23 03:10:29,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:10:29,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:29,217 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:10:29,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-23 03:10:29,224 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 [2022-11-23 03:10:29,237 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 03:10:29,237 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 03:10:29,237 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 03:10:29,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 03:10:29,238 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 03:10:29,241 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 03:10:29,241 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 03:10:29,261 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 03:10:29,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-23 03:10:29,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:10:29,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:29,271 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:10:29,288 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 [2022-11-23 03:10:29,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 03:10:29,301 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 03:10:29,302 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 03:10:29,302 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 03:10:29,302 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 03:10:29,303 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 03:10:29,303 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 03:10:29,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-23 03:10:29,326 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 03:10:29,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-23 03:10:29,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:10:29,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:29,353 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:10:29,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-23 03:10:29,371 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 [2022-11-23 03:10:29,395 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 03:10:29,396 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 03:10:29,396 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 03:10:29,396 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 03:10:29,396 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 03:10:29,397 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 03:10:29,397 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 03:10:29,410 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-23 03:10:29,415 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-23 03:10:29,415 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-23 03:10:29,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:10:29,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:29,451 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:10:29,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-23 03:10:29,454 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-23 03:10:29,454 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-23 03:10:29,454 INFO L513 LassoAnalysis]: Proved termination. [2022-11-23 03:10:29,454 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(twoWay_#in~n) = 2*twoWay_#in~n + 1 Supporting invariants [] [2022-11-23 03:10:29,459 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2022-11-23 03:10:29,463 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-23 03:10:29,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:10:29,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:10:29,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 03:10:29,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:10:29,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:10:29,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 03:10:29,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:10:29,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:29,671 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-11-23 03:10:29,673 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:29,849 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2). Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 45 states and 57 transitions. Complement of second has 16 states. [2022-11-23 03:10:29,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-11-23 03:10:29,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:29,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2022-11-23 03:10:29,858 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 5 letters. Loop has 4 letters. [2022-11-23 03:10:29,859 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 03:10:29,859 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 9 letters. Loop has 4 letters. [2022-11-23 03:10:29,860 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 03:10:29,860 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 5 letters. Loop has 8 letters. [2022-11-23 03:10:29,860 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 03:10:29,861 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 57 transitions. [2022-11-23 03:10:29,864 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-23 03:10:29,869 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 23 states and 26 transitions. [2022-11-23 03:10:29,870 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2022-11-23 03:10:29,870 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2022-11-23 03:10:29,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 26 transitions. [2022-11-23 03:10:29,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 03:10:29,871 INFO L218 hiAutomatonCegarLoop]: Abstraction has 23 states and 26 transitions. [2022-11-23 03:10:29,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 26 transitions. [2022-11-23 03:10:29,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 16. [2022-11-23 03:10:29,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:29,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2022-11-23 03:10:29,898 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 19 transitions. [2022-11-23 03:10:29,898 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2022-11-23 03:10:29,898 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-23 03:10:29,898 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2022-11-23 03:10:29,899 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-23 03:10:29,899 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 03:10:29,899 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 03:10:29,899 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:10:29,899 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-23 03:10:29,899 INFO L748 eck$LassoCheckResult]: Stem: 129#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 130#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~ret6#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 142#L42 assume !(main_~x~0#1 < 0);main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 141#L45 assume !(main_~y~0#1 < 0);main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 139#L48 call main_#t~ret6#1 := twoWay(1, main_~x~0#1);< 143#twoWayENTRY ~terminate := #in~terminate;~n := #in~n; 137#L27 assume !(~n < 0);~m~0 := ~n; 138#L31 assume !(0 != ~terminate);#t~post1 := ~m~0;~m~0 := 1 + #t~post1;havoc #t~post1; 132#L31-2 [2022-11-23 03:10:29,900 INFO L750 eck$LassoCheckResult]: Loop: 132#L31-2 call #t~ret2 := twoWay(~terminate, ~m~0);< 131#twoWayENTRY ~terminate := #in~terminate;~n := #in~n; 133#L27 assume !(~n < 0);~m~0 := ~n; 144#L31 assume 0 != ~terminate;#t~post0 := ~m~0;~m~0 := #t~post0 - 1;havoc #t~post0; 132#L31-2 [2022-11-23 03:10:29,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:10:29,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1236519797, now seen corresponding path program 1 times [2022-11-23 03:10:29,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:10:29,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355451586] [2022-11-23 03:10:29,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:10:29,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:10:29,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:10:29,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:29,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:10:29,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355451586] [2022-11-23 03:10:29,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355451586] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:10:29,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:10:29,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:10:29,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542254304] [2022-11-23 03:10:29,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:10:29,983 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-23 03:10:29,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:10:29,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1876964, now seen corresponding path program 2 times [2022-11-23 03:10:29,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:10:29,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91153002] [2022-11-23 03:10:29,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:10:29,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:10:29,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:10:29,990 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:10:29,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:10:29,995 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:10:30,157 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 03:10:30,157 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 03:10:30,157 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 03:10:30,157 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 03:10:30,157 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-23 03:10:30,157 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:10:30,158 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 03:10:30,158 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 03:10:30,158 INFO L133 ssoRankerPreferences]: Filename of dumped script: TwoWay.c_Iteration2_Loop [2022-11-23 03:10:30,158 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 03:10:30,158 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 03:10:30,159 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:10:30,173 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:10:30,175 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:10:30,179 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:10:30,181 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:10:30,192 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:10:30,281 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 03:10:30,282 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-23 03:10:30,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:10:30,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:30,283 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:10:30,291 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 03:10:30,291 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:10:30,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-23 03:10:30,319 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 03:10:30,319 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_#t~ret2=0} Honda state: {twoWay_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-23 03:10:30,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-23 03:10:30,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:10:30,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:30,329 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:10:30,354 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 03:10:30,355 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:10:30,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-23 03:10:30,387 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 03:10:30,387 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_#t~post0=0} Honda state: {twoWay_#t~post0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-23 03:10:30,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-23 03:10:30,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:10:30,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:30,398 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:10:30,401 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 03:10:30,401 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:10:30,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-23 03:10:30,424 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 03:10:30,424 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_#t~post1=0} Honda state: {twoWay_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-23 03:10:30,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-23 03:10:30,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:10:30,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:30,435 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:10:30,439 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 03:10:30,439 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:10:30,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-23 03:10:30,462 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 03:10:30,462 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {twoWay_#res=0} Honda state: {twoWay_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-23 03:10:30,471 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2022-11-23 03:10:30,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:10:30,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:30,495 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:10:30,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-23 03:10:30,499 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 03:10:30,499 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:10:30,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-23 03:10:30,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:10:30,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:30,527 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:10:30,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-23 03:10:30,533 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-23 03:10:30,533 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 03:10:41,802 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-23 03:10:41,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-23 03:10:41,807 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 03:10:41,807 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 03:10:41,807 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 03:10:41,807 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 03:10:41,807 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-23 03:10:41,807 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:10:41,807 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 03:10:41,807 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 03:10:41,807 INFO L133 ssoRankerPreferences]: Filename of dumped script: TwoWay.c_Iteration2_Loop [2022-11-23 03:10:41,808 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 03:10:41,808 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 03:10:41,809 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:10:41,821 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:10:41,823 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:10:41,826 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:10:41,829 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:10:41,841 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 03:10:41,931 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 03:10:41,931 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-23 03:10:41,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:10:41,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:41,932 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:10:41,944 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 [2022-11-23 03:10:41,957 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 03:10:41,957 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 03:10:41,957 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 03:10:41,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 03:10:41,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 03:10:41,959 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 03:10:41,959 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 03:10:41,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-23 03:10:41,961 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 03:10:41,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-23 03:10:41,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:10:41,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:41,965 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:10:41,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-23 03:10:41,968 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 [2022-11-23 03:10:41,978 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 03:10:41,979 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 03:10:41,979 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 03:10:41,979 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 03:10:41,979 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 03:10:41,980 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 03:10:41,980 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 03:10:41,981 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 03:10:41,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2022-11-23 03:10:41,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:10:41,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:41,988 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:10:41,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-23 03:10:41,992 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 [2022-11-23 03:10:42,002 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 03:10:42,002 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 03:10:42,002 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 03:10:42,002 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 03:10:42,002 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 03:10:42,003 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 03:10:42,003 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 03:10:42,005 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 03:10:42,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-23 03:10:42,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:10:42,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:42,010 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:10:42,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-23 03:10:42,012 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 [2022-11-23 03:10:42,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 03:10:42,022 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 03:10:42,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 03:10:42,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 03:10:42,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 03:10:42,023 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 03:10:42,023 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 03:10:42,058 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 03:10:42,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-23 03:10:42,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:10:42,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:42,068 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:10:42,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-23 03:10:42,075 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 [2022-11-23 03:10:42,087 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 03:10:42,087 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 03:10:42,087 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 03:10:42,087 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 03:10:42,087 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 03:10:42,089 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 03:10:42,089 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 03:10:42,099 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-23 03:10:42,103 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-23 03:10:42,103 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-23 03:10:42,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 03:10:42,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:10:42,107 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 03:10:42,111 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-23 03:10:42,111 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-23 03:10:42,112 INFO L513 LassoAnalysis]: Proved termination. [2022-11-23 03:10:42,112 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(twoWay_~m~0) = 2*twoWay_~m~0 + 1 Supporting invariants [] [2022-11-23 03:10:42,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-23 03:10:42,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-23 03:10:42,122 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-23 03:10:42,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:10:42,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:10:42,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 03:10:42,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:10:42,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:10:42,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 03:10:42,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:10:42,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:10:42,278 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2022-11-23 03:10:42,278 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5 Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:42,344 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 26 states and 31 transitions. Complement of second has 11 states. [2022-11-23 03:10:42,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-11-23 03:10:42,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:42,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2022-11-23 03:10:42,346 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 8 letters. Loop has 4 letters. [2022-11-23 03:10:42,347 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 03:10:42,347 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 12 letters. Loop has 4 letters. [2022-11-23 03:10:42,347 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 03:10:42,347 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 8 letters. Loop has 8 letters. [2022-11-23 03:10:42,347 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 03:10:42,348 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 31 transitions. [2022-11-23 03:10:42,349 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-23 03:10:42,350 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 25 states and 30 transitions. [2022-11-23 03:10:42,350 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2022-11-23 03:10:42,351 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2022-11-23 03:10:42,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 30 transitions. [2022-11-23 03:10:42,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 03:10:42,351 INFO L218 hiAutomatonCegarLoop]: Abstraction has 25 states and 30 transitions. [2022-11-23 03:10:42,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 30 transitions. [2022-11-23 03:10:42,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2022-11-23 03:10:42,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 18 states have internal predecessors, (22), 5 states have call successors, (7), 5 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:42,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2022-11-23 03:10:42,354 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 29 transitions. [2022-11-23 03:10:42,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:10:42,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:10:42,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:10:42,358 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:10:42,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:10:42,376 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2022-11-23 03:10:42,376 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 13 transitions. [2022-11-23 03:10:42,377 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-23 03:10:42,377 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2022-11-23 03:10:42,377 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-23 03:10:42,377 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-23 03:10:42,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-23 03:10:42,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:10:42,378 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 03:10:42,378 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 03:10:42,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 03:10:42,379 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 03:10:42,379 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-23 03:10:42,379 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-23 03:10:42,380 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-23 03:10:42,380 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-23 03:10:42,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 03:10:42 BoogieIcfgContainer [2022-11-23 03:10:42,387 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-23 03:10:42,388 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 03:10:42,388 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 03:10:42,388 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 03:10:42,389 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:10:27" (3/4) ... [2022-11-23 03:10:42,391 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 03:10:42,391 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 03:10:42,392 INFO L158 Benchmark]: Toolchain (without parser) took 14897.80ms. Allocated memory is still 205.5MB. Free memory was 172.8MB in the beginning and 94.2MB in the end (delta: 78.6MB). Peak memory consumption was 79.2MB. Max. memory is 16.1GB. [2022-11-23 03:10:42,393 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 142.6MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:10:42,393 INFO L158 Benchmark]: CACSL2BoogieTranslator took 190.93ms. Allocated memory is still 205.5MB. Free memory was 172.8MB in the beginning and 163.2MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 03:10:42,394 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.51ms. Allocated memory is still 205.5MB. Free memory was 163.2MB in the beginning and 161.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:10:42,394 INFO L158 Benchmark]: Boogie Preprocessor took 21.55ms. Allocated memory is still 205.5MB. Free memory was 161.9MB in the beginning and 161.1MB in the end (delta: 770.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:10:42,395 INFO L158 Benchmark]: RCFGBuilder took 234.07ms. Allocated memory is still 205.5MB. Free memory was 161.1MB in the beginning and 151.8MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-23 03:10:42,395 INFO L158 Benchmark]: BuchiAutomizer took 14407.50ms. Allocated memory is still 205.5MB. Free memory was 151.3MB in the beginning and 94.2MB in the end (delta: 57.1MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. [2022-11-23 03:10:42,395 INFO L158 Benchmark]: Witness Printer took 3.86ms. Allocated memory is still 205.5MB. Free memory is still 94.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:10:42,398 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 142.6MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 190.93ms. Allocated memory is still 205.5MB. Free memory was 172.8MB in the beginning and 163.2MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.51ms. Allocated memory is still 205.5MB. Free memory was 163.2MB in the beginning and 161.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.55ms. Allocated memory is still 205.5MB. Free memory was 161.9MB in the beginning and 161.1MB in the end (delta: 770.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 234.07ms. Allocated memory is still 205.5MB. Free memory was 161.1MB in the beginning and 151.8MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 14407.50ms. Allocated memory is still 205.5MB. Free memory was 151.3MB in the beginning and 94.2MB in the end (delta: 57.1MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. * Witness Printer took 3.86ms. Allocated memory is still 205.5MB. Free memory is still 94.2MB. 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * unknown-#in~n-unknown + 1 and consists of 5 locations. One deterministic module has affine ranking function 2 * m + 1 and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 14.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 13.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 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, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 39 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 57 IncrementalHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 30 mSDtfsCounter, 57 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax100 hnf100 lsp62 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq168 hnf92 smp100 dnf139 smp100 tf106 neg93 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 34ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 9 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 11.7s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-23 03:10:42,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-23 03:10:42,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-23 03:10:42,818 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef562d81-62df-4415-8240-a63f6bc9240b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE