./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/and-02-false.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/and-02-false.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF --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 112cd574dc467966c3ac33adac4b214751d4988613e6cb57f73fdffbdf7c6fb8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:55:01,069 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:55:01,071 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:55:01,101 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:55:01,101 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:55:01,103 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:55:01,105 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:55:01,107 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:55:01,109 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:55:01,111 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:55:01,112 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:55:01,113 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:55:01,114 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:55:01,115 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:55:01,117 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:55:01,119 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:55:01,120 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:55:01,121 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:55:01,123 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:55:01,125 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:55:01,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:55:01,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:55:01,130 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:55:01,131 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:55:01,135 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:55:01,135 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:55:01,136 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:55:01,137 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:55:01,138 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:55:01,139 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:55:01,139 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:55:01,140 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:55:01,141 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:55:01,142 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:55:01,144 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:55:01,144 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:55:01,145 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:55:01,145 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:55:01,146 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:55:01,147 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:55:01,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:55:01,149 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-20 06:55:01,187 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:55:01,187 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:55:01,188 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:55:01,188 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:55:01,189 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:55:01,189 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:55:01,189 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:55:01,190 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-20 06:55:01,190 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-20 06:55:01,190 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-20 06:55:01,190 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-20 06:55:01,191 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-20 06:55:01,191 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-20 06:55:01,191 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:55:01,191 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 06:55:01,192 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:55:01,192 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:55:01,192 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-20 06:55:01,192 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-20 06:55:01,193 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-20 06:55:01,193 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:55:01,193 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-20 06:55:01,193 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:55:01,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-20 06:55:01,194 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:55:01,194 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:55:01,195 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:55:01,195 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:55:01,195 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:55:01,196 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-20 06:55:01,196 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_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 112cd574dc467966c3ac33adac4b214751d4988613e6cb57f73fdffbdf7c6fb8 [2021-11-20 06:55:01,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:55:01,523 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:55:01,526 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:55:01,528 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:55:01,529 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:55:01,531 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/termination-bwb/and-02-false.c [2021-11-20 06:55:01,608 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/data/425770a82/37a2c0b532514ccab5ec8610cbabd057/FLAG6a752156f [2021-11-20 06:55:02,093 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:55:02,094 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/sv-benchmarks/c/termination-bwb/and-02-false.c [2021-11-20 06:55:02,101 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/data/425770a82/37a2c0b532514ccab5ec8610cbabd057/FLAG6a752156f [2021-11-20 06:55:02,463 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/data/425770a82/37a2c0b532514ccab5ec8610cbabd057 [2021-11-20 06:55:02,466 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:55:02,467 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:55:02,469 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:55:02,469 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:55:02,473 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:55:02,474 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:55:02" (1/1) ... [2021-11-20 06:55:02,475 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e74d75d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:55:02, skipping insertion in model container [2021-11-20 06:55:02,475 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:55:02" (1/1) ... [2021-11-20 06:55:02,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:55:02,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:55:02,681 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:55:02,687 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:55:02,702 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:55:02,710 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:55:02,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:55:02 WrapperNode [2021-11-20 06:55:02,711 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:55:02,712 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:55:02,713 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:55:02,713 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:55:02,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:55:02" (1/1) ... [2021-11-20 06:55:02,724 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:55:02" (1/1) ... [2021-11-20 06:55:02,737 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2021-11-20 06:55:02,738 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:55:02,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:55:02,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:55:02,739 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:55:02,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:55:02" (1/1) ... [2021-11-20 06:55:02,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:55:02" (1/1) ... [2021-11-20 06:55:02,748 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:55:02" (1/1) ... [2021-11-20 06:55:02,748 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:55:02" (1/1) ... [2021-11-20 06:55:02,750 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:55:02" (1/1) ... [2021-11-20 06:55:02,754 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:55:02" (1/1) ... [2021-11-20 06:55:02,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:55:02" (1/1) ... [2021-11-20 06:55:02,755 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:55:02,756 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:55:02,756 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:55:02,757 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:55:02,757 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:55:02" (1/1) ... [2021-11-20 06:55:02,765 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:55:02,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:55:02,801 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:55:02,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-20 06:55:02,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:55:02,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:55:02,886 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:55:02,888 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:55:02,962 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:55:02,969 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:55:02,969 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 06:55:02,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:55:02 BoogieIcfgContainer [2021-11-20 06:55:02,971 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:55:02,972 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-20 06:55:02,972 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-20 06:55:02,975 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-20 06:55:02,976 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 06:55:02,980 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 06:55:02" (1/3) ... [2021-11-20 06:55:02,982 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@35a42d20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 06:55:02, skipping insertion in model container [2021-11-20 06:55:02,982 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 06:55:02,982 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:55:02" (2/3) ... [2021-11-20 06:55:02,982 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@35a42d20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 06:55:02, skipping insertion in model container [2021-11-20 06:55:02,982 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 06:55:02,983 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:55:02" (3/3) ... [2021-11-20 06:55:02,984 INFO L388 chiAutomizerObserver]: Analyzing ICFG and-02-false.c [2021-11-20 06:55:03,026 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-20 06:55:03,027 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-20 06:55:03,027 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-20 06:55:03,027 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-20 06:55:03,027 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-20 06:55:03,027 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-20 06:55:03,027 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-20 06:55:03,028 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-20 06:55:03,042 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:55:03,059 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-20 06:55:03,060 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 06:55:03,060 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 06:55:03,065 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-20 06:55:03,066 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-20 06:55:03,066 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-20 06:55:03,066 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:55:03,067 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-20 06:55:03,067 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 06:55:03,067 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 06:55:03,068 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-20 06:55:03,068 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-20 06:55:03,074 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~post2#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 6#L18-2true [2021-11-20 06:55:03,075 INFO L793 eck$LassoCheckResult]: Loop: 6#L18-2true assume !!(0 == main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 4#L18true assume !(main_~x~0#1 >= 0);main_#t~post2#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post2#1;havoc main_#t~post2#1; 6#L18-2true [2021-11-20 06:55:03,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:55:03,081 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-20 06:55:03,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:55:03,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004631366] [2021-11-20 06:55:03,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:55:03,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:55:03,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:55:03,165 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:55:03,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:55:03,182 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:55:03,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:55:03,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2021-11-20 06:55:03,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:55:03,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780106326] [2021-11-20 06:55:03,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:55:03,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:55:03,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:55:03,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:55:03,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:55:03,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780106326] [2021-11-20 06:55:03,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780106326] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:55:03,244 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:55:03,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-20 06:55:03,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161075679] [2021-11-20 06:55:03,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:55:03,250 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-20 06:55:03,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:55:03,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:55:03,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:55:03,283 INFO L87 Difference]: Start difference. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 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) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:55:03,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:55:03,296 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2021-11-20 06:55:03,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:55:03,303 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 8 transitions. [2021-11-20 06:55:03,304 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-20 06:55:03,307 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 4 states and 4 transitions. [2021-11-20 06:55:03,308 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-11-20 06:55:03,308 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2021-11-20 06:55:03,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 4 transitions. [2021-11-20 06:55:03,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 06:55:03,309 INFO L681 BuchiCegarLoop]: Abstraction has 4 states and 4 transitions. [2021-11-20 06:55:03,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 4 transitions. [2021-11-20 06:55:03,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2021-11-20 06:55:03,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:55:03,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4 transitions. [2021-11-20 06:55:03,333 INFO L704 BuchiCegarLoop]: Abstraction has 4 states and 4 transitions. [2021-11-20 06:55:03,333 INFO L587 BuchiCegarLoop]: Abstraction has 4 states and 4 transitions. [2021-11-20 06:55:03,333 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-20 06:55:03,333 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 4 transitions. [2021-11-20 06:55:03,334 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-20 06:55:03,334 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 06:55:03,334 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 06:55:03,334 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-20 06:55:03,334 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-20 06:55:03,335 INFO L791 eck$LassoCheckResult]: Stem: 27#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 28#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~post2#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 26#L18-2 [2021-11-20 06:55:03,335 INFO L793 eck$LassoCheckResult]: Loop: 26#L18-2 assume !!(0 == main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 25#L18 assume main_~x~0#1 >= 0;main_~x~0#1 := ~bitwiseAnd(main_~x~0#1, main_~a~0#1); 26#L18-2 [2021-11-20 06:55:03,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:55:03,335 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2021-11-20 06:55:03,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:55:03,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029765723] [2021-11-20 06:55:03,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:55:03,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:55:03,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:55:03,340 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:55:03,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:55:03,344 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:55:03,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:55:03,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1316, now seen corresponding path program 1 times [2021-11-20 06:55:03,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:55:03,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851243565] [2021-11-20 06:55:03,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:55:03,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:55:03,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:55:03,352 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:55:03,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:55:03,357 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:55:03,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:55:03,358 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2021-11-20 06:55:03,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:55:03,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745267639] [2021-11-20 06:55:03,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:55:03,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:55:03,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:55:03,365 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:55:03,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:55:03,384 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:55:03,425 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 06:55:03,426 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 06:55:03,426 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 06:55:03,426 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 06:55:03,426 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 06:55:03,427 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:55:03,427 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 06:55:03,427 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 06:55:03,427 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-02-false.c_Iteration2_Loop [2021-11-20 06:55:03,427 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 06:55:03,433 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 06:55:03,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:55:03,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:55:03,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:55:03,541 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 06:55:03,549 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 06:55:03,551 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:55:03,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:55:03,553 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:55:03,556 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 06:55:03,556 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:55:03,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-20 06:55:03,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-20 06:55:03,633 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:55:03,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:55:03,637 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:55:03,649 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 06:55:03,649 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:55:03,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-20 06:55:03,693 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 06:55:03,693 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~a~0#1=0} Honda state: {ULTIMATE.start_main_~a~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~a~0#1=-3}, {ULTIMATE.start_main_~a~0#1=-1}, {ULTIMATE.start_main_~a~0#1=3}] Lambdas: [1, 4, 1] Nus: [0, 1] [2021-11-20 06:55:03,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-20 06:55:03,715 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:55:03,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:55:03,716 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:55:03,730 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 06:55:03,731 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:55:03,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-20 06:55:03,743 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 06:55:03,743 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-20 06:55:03,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-20 06:55:03,775 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:55:03,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:55:03,776 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:55:03,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-20 06:55:03,790 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 06:55:03,790 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:55:03,818 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 06:55:03,818 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-20 06:55:03,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-20 06:55:03,864 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 06:55:03,864 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 06:55:03,864 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 06:55:03,864 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 06:55:03,864 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 06:55:03,864 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:55:03,864 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 06:55:03,865 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 06:55:03,865 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-02-false.c_Iteration2_Lasso [2021-11-20 06:55:03,865 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 06:55:03,865 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 06:55:03,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:55:03,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:55:03,901 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:55:03,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:55:03,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:55:03,916 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:55:03,989 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 06:55:03,989 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 06:55:03,989 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:55:03,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:55:04,005 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:55:04,017 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 06:55:04,017 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:55:04,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-20 06:55:04,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-20 06:55:04,069 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:55:04,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:55:04,070 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:55:04,075 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 06:55:04,076 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:55:04,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-20 06:55:04,106 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 06:55:04,106 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~a~0#1=0} Honda state: {ULTIMATE.start_main_~a~0#1=16} Generalized eigenvectors: [{ULTIMATE.start_main_~a~0#1=-3}, {ULTIMATE.start_main_~a~0#1=-1}, {ULTIMATE.start_main_~a~0#1=3}] Lambdas: [1, 4, 1] Nus: [0, 1] [2021-11-20 06:55:04,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-20 06:55:04,134 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:55:04,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:55:04,135 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:55:04,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-20 06:55:04,144 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 06:55:04,144 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:55:04,157 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 06:55:04,157 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2#1=0} Honda state: {ULTIMATE.start_main_#t~post2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-20 06:55:04,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-11-20 06:55:04,182 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:55:04,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:55:04,184 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:55:04,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-20 06:55:04,191 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 06:55:04,191 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:55:04,205 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 06:55:04,205 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-20 06:55:04,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-20 06:55:04,225 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:55:04,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:55:04,227 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:55:04,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-20 06:55:04,229 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 06:55:04,229 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:55:04,238 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 06:55:04,238 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-20 06:55:04,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-20 06:55:04,257 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:55:04,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:55:04,258 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:55:04,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-20 06:55:04,260 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 06:55:04,260 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:55:04,271 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 06:55:04,271 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-20 06:55:04,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-20 06:55:04,292 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:55:04,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:55:04,293 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:55:04,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-20 06:55:04,296 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 06:55:04,296 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:55:04,322 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 06:55:04,323 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-20 06:55:04,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-20 06:55:04,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 06:55:04 BoogieIcfgContainer [2021-11-20 06:55:04,349 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-20 06:55:04,350 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 06:55:04,350 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 06:55:04,350 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 06:55:04,351 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:55:02" (3/4) ... [2021-11-20 06:55:04,354 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 06:55:04,354 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 06:55:04,355 INFO L158 Benchmark]: Toolchain (without parser) took 1886.97ms. Allocated memory is still 104.9MB. Free memory was 69.2MB in the beginning and 72.5MB in the end (delta: -3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:55:04,355 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 104.9MB. Free memory is still 85.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:55:04,356 INFO L158 Benchmark]: CACSL2BoogieTranslator took 242.41ms. Allocated memory is still 104.9MB. Free memory was 69.0MB in the beginning and 82.5MB in the end (delta: -13.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 06:55:04,356 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.55ms. Allocated memory is still 104.9MB. Free memory was 82.5MB in the beginning and 81.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:55:04,357 INFO L158 Benchmark]: Boogie Preprocessor took 17.07ms. Allocated memory is still 104.9MB. Free memory was 81.3MB in the beginning and 80.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:55:04,357 INFO L158 Benchmark]: RCFGBuilder took 214.68ms. Allocated memory is still 104.9MB. Free memory was 80.2MB in the beginning and 72.1MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 06:55:04,358 INFO L158 Benchmark]: BuchiAutomizer took 1377.62ms. Allocated memory is still 104.9MB. Free memory was 72.1MB in the beginning and 72.9MB in the end (delta: -822.7kB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. [2021-11-20 06:55:04,358 INFO L158 Benchmark]: Witness Printer took 3.89ms. Allocated memory is still 104.9MB. Free memory was 72.9MB in the beginning and 72.5MB in the end (delta: 477.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:55:04,361 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 104.9MB. Free memory is still 85.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 242.41ms. Allocated memory is still 104.9MB. Free memory was 69.0MB in the beginning and 82.5MB in the end (delta: -13.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.55ms. Allocated memory is still 104.9MB. Free memory was 82.5MB in the beginning and 81.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.07ms. Allocated memory is still 104.9MB. Free memory was 81.3MB in the beginning and 80.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 214.68ms. Allocated memory is still 104.9MB. Free memory was 80.2MB in the beginning and 72.1MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1377.62ms. Allocated memory is still 104.9MB. Free memory was 72.1MB in the beginning and 72.9MB in the end (delta: -822.7kB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. * Witness Printer took 3.89ms. Allocated memory is still 104.9MB. Free memory was 72.9MB in the beginning and 72.5MB in the end (delta: 477.4kB). 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one module whose termination is unknown.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 4 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 7 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax100 hnf100 lsp63 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq212 hnf100 smp100 dnf100 smp100 tf108 neg100 sie100 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Unable to decide termination Buchi Automizer cannot decide termination for the following lasso because it contains the following overapproximations. Overapproximations C: x&a [19] (Reason bitwiseAnd) Lasso Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~post2#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16;" Loop: "assume !!(0 == main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1;" "assume main_~x~0#1 >= 0;main_~x~0#1 := ~bitwiseAnd(main_~x~0#1, main_~a~0#1);" RESULT: Ultimate could not prove your program: unable to determine termination [2021-11-20 06:55:04,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/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 Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_688006f3-46cf-4df9-9053-4c1c9f92f646/bin/uautomizer-DQz5hQGWxF/config using search string *Termination*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN