./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/c.01_assume.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/c.01_assume.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R --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 f716f85b4674adf32c5382ff55713973e95460ac3d0ffe3bfad3cafce9960ed4 --- 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-38b53e6 [2022-11-25 17:47:37,831 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:47:37,833 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:47:37,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:47:37,854 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:47:37,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:47:37,857 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:47:37,859 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:47:37,861 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:47:37,862 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:47:37,863 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:47:37,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:47:37,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:47:37,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:47:37,868 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:47:37,869 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:47:37,870 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:47:37,871 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:47:37,873 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:47:37,875 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:47:37,877 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:47:37,879 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:47:37,880 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:47:37,881 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:47:37,885 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:47:37,885 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:47:37,886 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:47:37,887 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:47:37,887 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:47:37,889 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:47:37,889 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:47:37,890 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:47:37,891 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:47:37,892 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:47:37,893 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:47:37,894 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:47:37,895 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:47:37,895 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:47:37,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:47:37,897 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:47:37,898 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:47:37,899 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-25 17:47:37,921 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:47:37,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:47:37,921 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:47:37,922 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:47:37,923 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:47:37,923 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:47:37,924 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:47:37,924 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-25 17:47:37,924 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-25 17:47:37,924 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-25 17:47:37,925 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-25 17:47:37,925 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-25 17:47:37,925 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-25 17:47:37,926 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:47:37,926 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:47:37,926 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:47:37,927 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:47:37,927 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-25 17:47:37,927 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-25 17:47:37,928 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-25 17:47:37,928 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:47:37,928 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-25 17:47:37,929 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:47:37,929 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-25 17:47:37,929 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:47:37,929 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:47:37,930 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:47:37,930 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:47:37,931 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-25 17:47:37,932 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_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f716f85b4674adf32c5382ff55713973e95460ac3d0ffe3bfad3cafce9960ed4 [2022-11-25 17:47:38,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:47:38,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:47:38,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:47:38,252 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:47:38,254 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:47:38,256 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/termination-restricted-15/c.01_assume.c [2022-11-25 17:47:41,619 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:47:41,922 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:47:41,923 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/sv-benchmarks/c/termination-restricted-15/c.01_assume.c [2022-11-25 17:47:41,929 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/data/e65592f33/28e1035a593f48cf881600f867c0962d/FLAGebdb288cd [2022-11-25 17:47:41,951 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/data/e65592f33/28e1035a593f48cf881600f867c0962d [2022-11-25 17:47:41,958 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:47:41,960 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:47:41,967 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:47:41,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:47:41,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:47:41,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:47:41" (1/1) ... [2022-11-25 17:47:41,976 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a9b11fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:47:41, skipping insertion in model container [2022-11-25 17:47:41,976 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:47:41" (1/1) ... [2022-11-25 17:47:41,985 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:47:42,005 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:47:42,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:47:42,243 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:47:42,263 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:47:42,279 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:47:42,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:47:42 WrapperNode [2022-11-25 17:47:42,280 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:47:42,282 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:47:42,282 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:47:42,282 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:47:42,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:47:42" (1/1) ... [2022-11-25 17:47:42,299 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:47:42" (1/1) ... [2022-11-25 17:47:42,322 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-11-25 17:47:42,322 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:47:42,323 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:47:42,323 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:47:42,323 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:47:42,335 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:47:42" (1/1) ... [2022-11-25 17:47:42,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:47:42" (1/1) ... [2022-11-25 17:47:42,337 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:47:42" (1/1) ... [2022-11-25 17:47:42,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:47:42" (1/1) ... [2022-11-25 17:47:42,340 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:47:42" (1/1) ... [2022-11-25 17:47:42,347 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:47:42" (1/1) ... [2022-11-25 17:47:42,349 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:47:42" (1/1) ... [2022-11-25 17:47:42,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:47:42" (1/1) ... [2022-11-25 17:47:42,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:47:42,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:47:42,354 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:47:42,355 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:47:42,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:47:42" (1/1) ... [2022-11-25 17:47:42,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:47:42,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:47:42,404 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:47:42,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-25 17:47:42,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:47:42,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:47:42,556 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:47:42,559 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:47:42,664 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:47:42,671 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:47:42,671 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 17:47:42,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:47:42 BoogieIcfgContainer [2022-11-25 17:47:42,673 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:47:42,675 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-25 17:47:42,675 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-25 17:47:42,680 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-25 17:47:42,681 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 17:47:42,681 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 05:47:41" (1/3) ... [2022-11-25 17:47:42,683 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b3acf7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 05:47:42, skipping insertion in model container [2022-11-25 17:47:42,684 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 17:47:42,684 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:47:42" (2/3) ... [2022-11-25 17:47:42,685 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b3acf7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 05:47:42, skipping insertion in model container [2022-11-25 17:47:42,685 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-25 17:47:42,685 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:47:42" (3/3) ... [2022-11-25 17:47:42,687 INFO L332 chiAutomizerObserver]: Analyzing ICFG c.01_assume.c [2022-11-25 17:47:42,768 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-25 17:47:42,768 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-25 17:47:42,768 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-25 17:47:42,769 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-25 17:47:42,769 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-25 17:47:42,769 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-25 17:47:42,769 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-25 17:47:42,770 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-25 17:47:42,774 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:47:42,794 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-25 17:47:42,796 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 17:47:42,797 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 17:47:42,803 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-25 17:47:42,803 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-25 17:47:42,803 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-25 17:47:42,804 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:47:42,805 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-25 17:47:42,805 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 17:47:42,805 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 17:47:42,806 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-25 17:47:42,806 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-25 17:47:42,815 INFO L748 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 5#L9-2true [2022-11-25 17:47:42,815 INFO L750 eck$LassoCheckResult]: Loop: 5#L9-2true assume !!(main_~x~0#1 >= 0 && main_~y~0#1 > 0);main_~y~0#1 := 1; 9#L11-2true assume !((main_~x~0#1 > main_~y~0#1 && main_~y~0#1 > 0) && main_~y~0#1 < 1073741824); 8#L11-3true main_~x~0#1 := main_~x~0#1 - 1; 5#L9-2true [2022-11-25 17:47:42,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:47:42,822 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-25 17:47:42,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:47:42,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395427540] [2022-11-25 17:47:42,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:47:42,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:47:42,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:47:42,934 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:47:42,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:47:42,964 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:47:42,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:47:42,968 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2022-11-25 17:47:42,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:47:42,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728572296] [2022-11-25 17:47:42,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:47:42,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:47:42,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:47:42,996 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:47:43,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:47:43,003 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:47:43,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:47:43,005 INFO L85 PathProgramCache]: Analyzing trace with hash 28699886, now seen corresponding path program 1 times [2022-11-25 17:47:43,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:47:43,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105842178] [2022-11-25 17:47:43,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:47:43,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:47:43,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:47:43,016 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:47:43,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:47:43,023 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:47:43,217 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 17:47:43,218 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 17:47:43,218 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 17:47:43,218 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 17:47:43,218 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-25 17:47:43,218 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:47:43,219 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 17:47:43,219 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 17:47:43,219 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01_assume.c_Iteration1_Loop [2022-11-25 17:47:43,219 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 17:47:43,219 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 17:47:43,238 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:47:43,276 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:47:43,281 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:47:43,363 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 17:47:43,364 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-25 17:47:43,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:47:43,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:47:43,370 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:47:43,382 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 17:47:43,383 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:47:43,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-25 17:47:43,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:47:43,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:47:43,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:47:43,422 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:47:43,433 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-25 17:47:43,434 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:47:43,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-25 17:47:43,473 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-25 17:47:43,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:47:43,478 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 17:47:43,478 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 17:47:43,479 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 17:47:43,479 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 17:47:43,479 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-25 17:47:43,479 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:47:43,479 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 17:47:43,480 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 17:47:43,480 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01_assume.c_Iteration1_Loop [2022-11-25 17:47:43,480 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 17:47:43,480 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 17:47:43,482 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:47:43,498 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:47:43,502 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:47:43,563 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 17:47:43,568 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-25 17:47:43,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:47:43,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:47:43,570 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:47:43,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-25 17:47:43,575 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 [2022-11-25 17:47:43,585 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 17:47:43,585 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 17:47:43,586 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 17:47:43,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 17:47:43,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 17:47:43,594 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 17:47:43,595 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 17:47:43,618 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-25 17:47:43,629 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-25 17:47:43,629 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-25 17:47:43,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:47:43,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:47:43,666 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:47:43,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-25 17:47:43,669 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-25 17:47:43,669 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-25 17:47:43,669 INFO L513 LassoAnalysis]: Proved termination. [2022-11-25 17:47:43,670 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 2*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [] [2022-11-25 17:47:43,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-25 17:47:43,681 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-25 17:47:43,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:47:43,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:43,737 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:47:43,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:47:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:43,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 17:47:43,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:47:43,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:47:43,842 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-25 17:47:43,844 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:47:43,895 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 36 transitions. Complement of second has 7 states. [2022-11-25 17:47:43,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-25 17:47:43,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:47:43,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2022-11-25 17:47:43,906 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 3 letters. [2022-11-25 17:47:43,907 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:47:43,907 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 5 letters. Loop has 3 letters. [2022-11-25 17:47:43,908 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:47:43,908 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 6 letters. [2022-11-25 17:47:43,908 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:47:43,909 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 36 transitions. [2022-11-25 17:47:43,911 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-25 17:47:43,915 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 8 states and 11 transitions. [2022-11-25 17:47:43,916 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2022-11-25 17:47:43,916 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2022-11-25 17:47:43,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2022-11-25 17:47:43,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 17:47:43,918 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-11-25 17:47:43,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2022-11-25 17:47:43,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2022-11-25 17:47:43,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:47:43,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2022-11-25 17:47:43,946 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2022-11-25 17:47:43,947 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2022-11-25 17:47:43,947 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-25 17:47:43,947 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2022-11-25 17:47:43,947 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-25 17:47:43,948 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 17:47:43,948 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 17:47:43,948 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-25 17:47:43,948 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-25 17:47:43,949 INFO L748 eck$LassoCheckResult]: Stem: 74#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 75#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 76#L9-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 > 0);main_~y~0#1 := 1; 78#L11-2 [2022-11-25 17:47:43,949 INFO L750 eck$LassoCheckResult]: Loop: 78#L11-2 assume !!((main_~x~0#1 > main_~y~0#1 && main_~y~0#1 > 0) && main_~y~0#1 < 1073741824);main_~y~0#1 := 2 * main_~y~0#1; 78#L11-2 [2022-11-25 17:47:43,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:47:43,949 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-11-25 17:47:43,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:47:43,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954031032] [2022-11-25 17:47:43,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:47:43,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:47:43,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:47:43,955 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:47:43,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:47:43,959 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:47:43,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:47:43,960 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2022-11-25 17:47:43,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:47:43,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162315009] [2022-11-25 17:47:43,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:47:43,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:47:43,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:47:43,966 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:47:43,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:47:43,971 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:47:43,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:47:43,972 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2022-11-25 17:47:43,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:47:43,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662620771] [2022-11-25 17:47:43,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:47:43,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:47:43,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:47:43,979 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:47:43,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:47:43,984 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:47:44,013 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 17:47:44,013 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 17:47:44,013 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 17:47:44,014 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 17:47:44,014 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-25 17:47:44,014 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:47:44,014 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 17:47:44,014 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 17:47:44,014 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01_assume.c_Iteration2_Loop [2022-11-25 17:47:44,014 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 17:47:44,015 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 17:47:44,016 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:47:44,020 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:47:44,024 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:47:44,077 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 17:47:44,077 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-25 17:47:44,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:47:44,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:47:44,079 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:47:44,095 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 17:47:44,095 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:47:44,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-25 17:47:44,119 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 17:47:44,119 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 17:47:44,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-25 17:47:44,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:47:44,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:47:44,131 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:47:44,135 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 17:47:44,135 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:47:44,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-25 17:47:44,161 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 17:47:44,161 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 17:47:44,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-25 17:47:44,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:47:44,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:47:44,179 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:47:44,188 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 17:47:44,188 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:47:44,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-25 17:47:44,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-25 17:47:44,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:47:44,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:47:44,231 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:47:44,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-25 17:47:44,235 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-25 17:47:44,236 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:47:44,285 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-25 17:47:44,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-25 17:47:44,295 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 17:47:44,295 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 17:47:44,295 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 17:47:44,295 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 17:47:44,295 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-25 17:47:44,295 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:47:44,295 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 17:47:44,296 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 17:47:44,296 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01_assume.c_Iteration2_Loop [2022-11-25 17:47:44,296 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 17:47:44,296 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 17:47:44,298 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:47:44,303 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:47:44,307 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:47:44,393 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 17:47:44,393 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-25 17:47:44,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:47:44,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:47:44,402 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:47:44,462 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 [2022-11-25 17:47:44,475 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 17:47:44,475 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 17:47:44,475 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 17:47:44,475 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 17:47:44,484 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-25 17:47:44,485 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-25 17:47:44,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-25 17:47:44,517 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 17:47:44,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-25 17:47:44,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:47:44,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:47:44,526 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:47:44,535 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 [2022-11-25 17:47:44,547 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 17:47:44,548 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 17:47:44,548 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 17:47:44,548 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 17:47:44,551 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-25 17:47:44,551 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-25 17:47:44,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-25 17:47:44,563 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 17:47:44,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-25 17:47:44,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:47:44,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:47:44,574 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:47:44,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-25 17:47:44,582 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 [2022-11-25 17:47:44,595 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 17:47:44,595 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 17:47:44,595 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 17:47:44,595 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 17:47:44,596 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 17:47:44,597 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 17:47:44,597 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 17:47:44,617 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-25 17:47:44,622 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-25 17:47:44,622 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-25 17:47:44,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:47:44,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:47:44,629 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:47:44,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-25 17:47:44,633 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-25 17:47:44,633 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-25 17:47:44,634 INFO L513 LassoAnalysis]: Proved termination. [2022-11-25 17:47:44,634 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = -2*ULTIMATE.start_main_~y~0#1 + 2147483647 Supporting invariants [] [2022-11-25 17:47:44,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-25 17:47:44,644 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-25 17:47:44,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:47:44,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:44,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:47:44,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:47:44,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:44,683 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 17:47:44,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:47:44,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:47:44,684 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-25 17:47:44,684 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:47:44,705 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 19 transitions. Complement of second has 5 states. [2022-11-25 17:47:44,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-25 17:47:44,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:47:44,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2022-11-25 17:47:44,708 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 1 letters. [2022-11-25 17:47:44,708 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:47:44,708 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 1 letters. [2022-11-25 17:47:44,709 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:47:44,709 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2022-11-25 17:47:44,709 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:47:44,709 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2022-11-25 17:47:44,711 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-25 17:47:44,712 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 10 states and 14 transitions. [2022-11-25 17:47:44,712 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2022-11-25 17:47:44,713 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2022-11-25 17:47:44,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 14 transitions. [2022-11-25 17:47:44,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-25 17:47:44,713 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 14 transitions. [2022-11-25 17:47:44,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 14 transitions. [2022-11-25 17:47:44,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 7. [2022-11-25 17:47:44,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:47:44,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2022-11-25 17:47:44,716 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2022-11-25 17:47:44,716 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2022-11-25 17:47:44,717 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-25 17:47:44,717 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2022-11-25 17:47:44,719 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-25 17:47:44,719 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-25 17:47:44,719 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-25 17:47:44,719 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2022-11-25 17:47:44,719 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-25 17:47:44,720 INFO L748 eck$LassoCheckResult]: Stem: 126#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 127#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 128#L9-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 > 0);main_~y~0#1 := 1; 129#L11-2 assume !((main_~x~0#1 > main_~y~0#1 && main_~y~0#1 > 0) && main_~y~0#1 < 1073741824); 132#L11-3 main_~x~0#1 := main_~x~0#1 - 1; 130#L9-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 > 0);main_~y~0#1 := 1; 131#L11-2 [2022-11-25 17:47:44,723 INFO L750 eck$LassoCheckResult]: Loop: 131#L11-2 assume !!((main_~x~0#1 > main_~y~0#1 && main_~y~0#1 > 0) && main_~y~0#1 < 1073741824);main_~y~0#1 := 2 * main_~y~0#1; 131#L11-2 [2022-11-25 17:47:44,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:47:44,724 INFO L85 PathProgramCache]: Analyzing trace with hash 889696477, now seen corresponding path program 2 times [2022-11-25 17:47:44,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:47:44,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755770869] [2022-11-25 17:47:44,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:47:44,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:47:44,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:47:44,747 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:47:44,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:47:44,752 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:47:44,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:47:44,753 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 2 times [2022-11-25 17:47:44,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:47:44,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594232064] [2022-11-25 17:47:44,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:47:44,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:47:44,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:47:44,764 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:47:44,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:47:44,774 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:47:44,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:47:44,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1810787031, now seen corresponding path program 1 times [2022-11-25 17:47:44,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:47:44,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100771292] [2022-11-25 17:47:44,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:47:44,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:47:44,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:44,881 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:47:44,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:47:44,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100771292] [2022-11-25 17:47:44,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100771292] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:47:44,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323412565] [2022-11-25 17:47:44,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:47:44,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:47:44,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:47:44,884 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:47:44,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-25 17:47:44,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:44,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 17:47:44,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:47:45,045 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:47:45,045 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:47:45,120 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:47:45,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323412565] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:47:45,120 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:47:45,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-25 17:47:45,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507410431] [2022-11-25 17:47:45,122 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:47:45,153 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 17:47:45,153 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 17:47:45,153 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 17:47:45,153 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 17:47:45,153 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-25 17:47:45,153 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:47:45,153 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 17:47:45,153 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 17:47:45,154 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01_assume.c_Iteration3_Loop [2022-11-25 17:47:45,154 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 17:47:45,154 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 17:47:45,155 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:47:45,159 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:47:45,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-25 17:47:45,197 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:47:45,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-25 17:47:45,245 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 17:47:45,245 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-25 17:47:45,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:47:45,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:47:45,247 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:47:45,262 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 17:47:45,262 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:47:45,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-25 17:47:45,285 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-25 17:47:45,285 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-25 17:47:45,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-25 17:47:45,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:47:45,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:47:45,296 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:47:45,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-25 17:47:45,303 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-25 17:47:45,303 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:47:45,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-25 17:47:45,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:47:45,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:47:45,336 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:47:45,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-25 17:47:45,341 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-25 17:47:45,341 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-25 17:47:45,373 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-25 17:47:45,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-25 17:47:45,390 INFO L210 LassoAnalysis]: Preferences: [2022-11-25 17:47:45,390 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-25 17:47:45,390 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-25 17:47:45,391 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-25 17:47:45,391 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-25 17:47:45,391 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:47:45,391 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-25 17:47:45,391 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-25 17:47:45,391 INFO L133 ssoRankerPreferences]: Filename of dumped script: c.01_assume.c_Iteration3_Loop [2022-11-25 17:47:45,391 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-25 17:47:45,391 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-25 17:47:45,392 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:47:45,396 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:47:45,407 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-25 17:47:45,460 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-25 17:47:45,461 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-25 17:47:45,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:47:45,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:47:45,466 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:47:45,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-25 17:47:45,474 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 [2022-11-25 17:47:45,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 17:47:45,487 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 17:47:45,487 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 17:47:45,487 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 17:47:45,494 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-25 17:47:45,494 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-25 17:47:45,521 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-25 17:47:45,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-25 17:47:45,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:47:45,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:47:45,532 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:47:45,541 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 [2022-11-25 17:47:45,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-25 17:47:45,554 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-25 17:47:45,554 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-25 17:47:45,555 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-25 17:47:45,555 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-25 17:47:45,555 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-25 17:47:45,556 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-25 17:47:45,556 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-25 17:47:45,573 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-25 17:47:45,576 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-25 17:47:45,576 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-25 17:47:45,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-25 17:47:45,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:47:45,579 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-25 17:47:45,591 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-25 17:47:45,591 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-25 17:47:45,592 INFO L513 LassoAnalysis]: Proved termination. [2022-11-25 17:47:45,592 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = -2*ULTIMATE.start_main_~y~0#1 + 2147483647 Supporting invariants [] [2022-11-25 17:47:45,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-25 17:47:45,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-25 17:47:45,604 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-25 17:47:45,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:47:45,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:45,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:47:45,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:47:45,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:45,646 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 17:47:45,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:47:45,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:47:45,648 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-25 17:47:45,648 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:47:45,667 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 16 transitions. Complement of second has 5 states. [2022-11-25 17:47:45,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-25 17:47:45,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:47:45,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2022-11-25 17:47:45,670 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 1 letters. [2022-11-25 17:47:45,670 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:47:45,670 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-25 17:47:45,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:47:45,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:45,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:47:45,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:47:45,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:45,714 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 17:47:45,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:47:45,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:47:45,715 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-25 17:47:45,716 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:47:45,732 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 16 transitions. Complement of second has 5 states. [2022-11-25 17:47:45,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-25 17:47:45,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:47:45,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2022-11-25 17:47:45,734 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 1 letters. [2022-11-25 17:47:45,735 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:47:45,735 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-25 17:47:45,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:47:45,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:45,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:47:45,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:47:45,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:45,779 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 17:47:45,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:47:45,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:47:45,780 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-25 17:47:45,780 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:47:45,801 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 10 states and 12 transitions. Complement of second has 4 states. [2022-11-25 17:47:45,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-25 17:47:45,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:47:45,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2022-11-25 17:47:45,807 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 1 letters. [2022-11-25 17:47:45,807 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:47:45,808 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 1 letters. [2022-11-25 17:47:45,808 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:47:45,808 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 2 letters. [2022-11-25 17:47:45,808 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-25 17:47:45,808 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 12 transitions. [2022-11-25 17:47:45,810 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-25 17:47:45,811 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2022-11-25 17:47:45,811 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-25 17:47:45,811 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-25 17:47:45,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-25 17:47:45,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:47:45,811 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 17:47:45,811 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 17:47:45,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:47:45,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 17:47:45,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:47:45,817 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:47:45,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:47:45,820 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-11-25 17:47:45,821 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2022-11-25 17:47:45,821 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-25 17:47:45,821 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 17:47:45,821 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-25 17:47:45,821 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-25 17:47:45,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-25 17:47:45,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:47:45,821 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 17:47:45,822 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 17:47:45,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:47:45,823 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 17:47:45,823 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-25 17:47:45,824 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-25 17:47:45,824 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-25 17:47:45,824 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-25 17:47:45,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 05:47:45 BoogieIcfgContainer [2022-11-25 17:47:45,833 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-25 17:47:45,833 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:47:45,833 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:47:45,834 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:47:45,834 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:47:42" (3/4) ... [2022-11-25 17:47:45,837 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 17:47:45,838 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:47:45,839 INFO L158 Benchmark]: Toolchain (without parser) took 3878.25ms. Allocated memory was 136.3MB in the beginning and 184.5MB in the end (delta: 48.2MB). Free memory was 104.6MB in the beginning and 126.6MB in the end (delta: -21.9MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. [2022-11-25 17:47:45,839 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 92.3MB. Free memory is still 44.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:47:45,839 INFO L158 Benchmark]: CACSL2BoogieTranslator took 312.89ms. Allocated memory is still 136.3MB. Free memory was 104.6MB in the beginning and 95.3MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-25 17:47:45,840 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.78ms. Allocated memory is still 136.3MB. Free memory was 95.3MB in the beginning and 94.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:47:45,841 INFO L158 Benchmark]: Boogie Preprocessor took 28.61ms. Allocated memory is still 136.3MB. Free memory was 94.0MB in the beginning and 92.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:47:45,841 INFO L158 Benchmark]: RCFGBuilder took 320.37ms. Allocated memory is still 136.3MB. Free memory was 92.9MB in the beginning and 84.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-25 17:47:45,842 INFO L158 Benchmark]: BuchiAutomizer took 3157.55ms. Allocated memory was 136.3MB in the beginning and 184.5MB in the end (delta: 48.2MB). Free memory was 84.5MB in the beginning and 126.6MB in the end (delta: -42.1MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2022-11-25 17:47:45,842 INFO L158 Benchmark]: Witness Printer took 4.54ms. Allocated memory is still 184.5MB. Free memory is still 126.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:47:45,845 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 92.3MB. Free memory is still 44.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 312.89ms. Allocated memory is still 136.3MB. Free memory was 104.6MB in the beginning and 95.3MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.78ms. Allocated memory is still 136.3MB. Free memory was 95.3MB in the beginning and 94.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.61ms. Allocated memory is still 136.3MB. Free memory was 94.0MB in the beginning and 92.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 320.37ms. Allocated memory is still 136.3MB. Free memory was 92.9MB in the beginning and 84.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3157.55ms. Allocated memory was 136.3MB in the beginning and 184.5MB in the end (delta: 48.2MB). Free memory was 84.5MB in the beginning and 126.6MB in the end (delta: -42.1MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. * Witness Printer took 4.54ms. Allocated memory is still 184.5MB. Free memory is still 126.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function 2 * x + 1 and consists of 5 locations. One deterministic module has affine ranking function 2147483647 + -2 * y and consists of 3 locations. One nondeterministic module has affine ranking function 2147483647 + -2 * y and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 12 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.0s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 2.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 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, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 33 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 24 mSDtfsCounter, 32 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax169 hnf100 lsp58 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq141 hnf94 smp100 dnf100 smp100 tf108 neg98 sie119 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 123ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-25 17:47:45,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-25 17:47:46,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-25 17:47:46,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f081fa-89e6-4912-96d0-6b451cf9ce9d/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE