./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Toulouse-MultiBranchesToLoop-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Toulouse-MultiBranchesToLoop-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 979c09223b4f64932a9ecfe431c2618325c341ab74bc342cc8647dbf1f3b723f ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:05:19,388 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:05:19,390 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:05:19,423 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:05:19,423 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:05:19,425 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:05:19,427 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:05:19,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:05:19,431 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:05:19,433 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:05:19,435 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:05:19,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:05:19,439 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:05:19,443 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:05:19,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:05:19,449 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:05:19,451 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:05:19,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:05:19,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:05:19,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:05:19,471 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:05:19,472 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:05:19,474 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:05:19,477 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:05:19,480 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:05:19,486 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:05:19,487 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:05:19,488 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:05:19,490 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:05:19,491 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:05:19,492 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:05:19,493 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:05:19,495 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:05:19,496 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:05:19,498 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:05:19,498 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:05:19,499 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:05:19,499 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:05:19,500 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:05:19,501 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:05:19,501 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:05:19,502 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-21 19:05:19,546 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:05:19,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:05:19,553 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:05:19,553 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:05:19,555 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:05:19,555 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:05:19,555 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:05:19,555 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:05:19,556 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:05:19,556 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:05:19,557 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:05:19,557 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:05:19,557 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:05:19,558 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:05:19,558 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:05:19,558 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:05:19,558 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:05:19,558 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:05:19,559 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:05:19,559 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:05:19,559 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:05:19,559 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:05:19,560 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:05:19,560 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:05:19,560 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:05:19,560 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:05:19,562 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:05:19,562 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:05:19,562 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:05:19,564 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:05:19,564 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_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 979c09223b4f64932a9ecfe431c2618325c341ab74bc342cc8647dbf1f3b723f [2021-10-21 19:05:19,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:05:19,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:05:19,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:05:19,822 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:05:19,823 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:05:19,824 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/termination-crafted/Toulouse-MultiBranchesToLoop-2.c [2021-10-21 19:05:19,883 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/data/90b985999/758b3eb035e64a7d9480e84050dd57de/FLAG3ba67df74 [2021-10-21 19:05:20,351 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:05:20,357 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/sv-benchmarks/c/termination-crafted/Toulouse-MultiBranchesToLoop-2.c [2021-10-21 19:05:20,365 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/data/90b985999/758b3eb035e64a7d9480e84050dd57de/FLAG3ba67df74 [2021-10-21 19:05:20,721 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/data/90b985999/758b3eb035e64a7d9480e84050dd57de [2021-10-21 19:05:20,724 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:05:20,726 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:05:20,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:05:20,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:05:20,736 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:05:20,737 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:05:20" (1/1) ... [2021-10-21 19:05:20,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45bf2f30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:20, skipping insertion in model container [2021-10-21 19:05:20,741 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:05:20" (1/1) ... [2021-10-21 19:05:20,749 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:05:20,764 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:05:20,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:05:20,950 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:05:20,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:05:20,981 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:05:20,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:20 WrapperNode [2021-10-21 19:05:20,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:05:20,983 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:05:20,983 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:05:20,983 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:05:20,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:20" (1/1) ... [2021-10-21 19:05:20,995 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:20" (1/1) ... [2021-10-21 19:05:21,013 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:05:21,014 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:05:21,014 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:05:21,014 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:05:21,022 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:20" (1/1) ... [2021-10-21 19:05:21,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:20" (1/1) ... [2021-10-21 19:05:21,023 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:20" (1/1) ... [2021-10-21 19:05:21,023 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:20" (1/1) ... [2021-10-21 19:05:21,026 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:20" (1/1) ... [2021-10-21 19:05:21,030 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:20" (1/1) ... [2021-10-21 19:05:21,031 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:20" (1/1) ... [2021-10-21 19:05:21,032 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:05:21,033 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:05:21,034 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:05:21,034 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:05:21,035 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:20" (1/1) ... [2021-10-21 19:05:21,048 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:05:21,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:21,084 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:05:21,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:05:21,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:05:21,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:05:21,298 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:05:21,298 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-21 19:05:21,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:05:21 BoogieIcfgContainer [2021-10-21 19:05:21,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:05:21,301 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:05:21,301 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:05:21,305 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:05:21,305 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:05:21,306 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:05:20" (1/3) ... [2021-10-21 19:05:21,307 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58311af5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:05:21, skipping insertion in model container [2021-10-21 19:05:21,307 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:05:21,307 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:05:20" (2/3) ... [2021-10-21 19:05:21,308 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58311af5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:05:21, skipping insertion in model container [2021-10-21 19:05:21,308 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:05:21,308 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:05:21" (3/3) ... [2021-10-21 19:05:21,309 INFO L389 chiAutomizerObserver]: Analyzing ICFG Toulouse-MultiBranchesToLoop-2.c [2021-10-21 19:05:21,354 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:05:21,355 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:05:21,355 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:05:21,355 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:05:21,355 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:05:21,355 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:05:21,355 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:05:21,355 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:05:21,371 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.8125) internal successors, (29), 16 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:21,390 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 19:05:21,390 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:05:21,390 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:05:21,397 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:05:21,397 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-21 19:05:21,397 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:05:21,398 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.8125) internal successors, (29), 16 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:21,401 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 19:05:21,401 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:05:21,401 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:05:21,402 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:05:21,402 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-21 19:05:21,409 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~z~0 := main_#t~nondet1;havoc main_#t~nondet1; 17#L20true assume !!(-268435455 <= main_~y~0); 13#L21true assume !!(-268435455 <= main_~z~0); 11#L22true assume 0 != main_#t~nondet2;havoc main_#t~nondet2;main_~x~0 := 1; 8#L22-2true assume !(main_~x~0 > 0);main_~x~0 := main_~x~0 - 1; 15#L27-1true assume !(main_~x~0 > 0);main_~x~0 := main_~x~0 - 1; 6#L32-1true assume !(main_~x~0 > 0);main_~x~0 := main_~x~0 - 1; 9#L37-1true assume !(main_~x~0 > 0);main_~x~0 := main_~x~0 - 1; 4#L42-1true assume !(main_~x~0 > 0);main_~x~0 := main_~x~0 - 1; 12#L47-1true assume !(main_~x~0 > 0);main_~x~0 := main_~x~0 - 1; 18#L52-1true assume !(main_~x~0 > 0);main_~x~0 := main_~x~0 - 1; 16#L57-1true assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 10#L67-1true [2021-10-21 19:05:21,409 INFO L793 eck$LassoCheckResult]: Loop: 10#L67-1true assume !!(main_~y~0 < 100 && main_~z~0 < 100);main_~y~0 := main_~y~0 + main_~x~0;main_~z~0 := main_~z~0 - main_~x~0; 10#L67-1true [2021-10-21 19:05:21,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:05:21,415 INFO L82 PathProgramCache]: Analyzing trace with hash 21841375, now seen corresponding path program 1 times [2021-10-21 19:05:21,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:05:21,424 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095751458] [2021-10-21 19:05:21,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:05:21,426 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:05:21,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:05:21,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:05:21,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:05:21,577 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095751458] [2021-10-21 19:05:21,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095751458] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:05:21,578 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:05:21,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:05:21,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552201854] [2021-10-21 19:05:21,585 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:05:21,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:05:21,586 INFO L82 PathProgramCache]: Analyzing trace with hash 104, now seen corresponding path program 1 times [2021-10-21 19:05:21,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:05:21,587 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546980955] [2021-10-21 19:05:21,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:05:21,587 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:05:21,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:05:21,596 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:05:21,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:05:21,615 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:05:21,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:05:21,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:05:21,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:05:21,706 INFO L87 Difference]: Start difference. First operand has 17 states, 16 states have (on average 1.8125) internal successors, (29), 16 states have internal predecessors, (29), 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 4.0) internal successors, (12), 3 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) [2021-10-21 19:05:21,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:05:21,820 INFO L93 Difference]: Finished difference Result 30 states and 41 transitions. [2021-10-21 19:05:21,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:05:21,824 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 41 transitions. [2021-10-21 19:05:21,828 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2021-10-21 19:05:21,832 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 22 states and 31 transitions. [2021-10-21 19:05:21,833 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2021-10-21 19:05:21,833 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2021-10-21 19:05:21,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 31 transitions. [2021-10-21 19:05:21,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:05:21,835 INFO L681 BuchiCegarLoop]: Abstraction has 22 states and 31 transitions. [2021-10-21 19:05:21,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 31 transitions. [2021-10-21 19:05:21,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2021-10-21 19:05:21,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 20 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:21,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 30 transitions. [2021-10-21 19:05:21,867 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2021-10-21 19:05:21,867 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2021-10-21 19:05:21,867 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:05:21,867 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 30 transitions. [2021-10-21 19:05:21,875 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 19:05:21,875 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:05:21,876 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:05:21,879 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:05:21,879 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-21 19:05:21,880 INFO L791 eck$LassoCheckResult]: Stem: 58#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~z~0 := main_#t~nondet1;havoc main_#t~nondet1; 59#L20 assume !!(-268435455 <= main_~y~0); 68#L21 assume !!(-268435455 <= main_~z~0); 66#L22 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2;main_~x~0 := -1; 67#L22-2 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 63#L27-1 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 60#L32-1 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 61#L37-1 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 56#L42-1 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 57#L47-1 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 65#L52-1 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 69#L57-1 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 64#L67-1 [2021-10-21 19:05:21,881 INFO L793 eck$LassoCheckResult]: Loop: 64#L67-1 assume !!(main_~y~0 < 100 && main_~z~0 < 100);main_~y~0 := main_~y~0 + main_~x~0;main_~z~0 := main_~z~0 - main_~x~0; 64#L67-1 [2021-10-21 19:05:21,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:05:21,885 INFO L82 PathProgramCache]: Analyzing trace with hash -322927901, now seen corresponding path program 1 times [2021-10-21 19:05:21,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:05:21,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51162931] [2021-10-21 19:05:21,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:05:21,886 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:05:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:05:21,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:05:21,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:05:21,937 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51162931] [2021-10-21 19:05:21,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51162931] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:05:21,940 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:05:21,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:05:21,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184943858] [2021-10-21 19:05:21,941 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:05:21,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:05:21,943 INFO L82 PathProgramCache]: Analyzing trace with hash 104, now seen corresponding path program 2 times [2021-10-21 19:05:21,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:05:21,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503125227] [2021-10-21 19:05:21,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:05:21,945 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:05:21,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:05:21,954 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:05:21,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:05:21,959 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:05:22,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:05:22,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:05:22,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:05:22,010 INFO L87 Difference]: Start difference. First operand 21 states and 30 transitions. cyclomatic complexity: 10 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) [2021-10-21 19:05:22,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:05:22,053 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2021-10-21 19:05:22,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:05:22,054 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 23 transitions. [2021-10-21 19:05:22,056 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2021-10-21 19:05:22,056 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 22 states and 23 transitions. [2021-10-21 19:05:22,057 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2021-10-21 19:05:22,057 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2021-10-21 19:05:22,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 23 transitions. [2021-10-21 19:05:22,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:05:22,058 INFO L681 BuchiCegarLoop]: Abstraction has 22 states and 23 transitions. [2021-10-21 19:05:22,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 23 transitions. [2021-10-21 19:05:22,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2021-10-21 19:05:22,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.0476190476190477) internal successors, (22), 20 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:22,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2021-10-21 19:05:22,061 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-10-21 19:05:22,061 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-10-21 19:05:22,061 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 19:05:22,062 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 22 transitions. [2021-10-21 19:05:22,062 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 19:05:22,063 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:05:22,063 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:05:22,063 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:05:22,064 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-21 19:05:22,064 INFO L791 eck$LassoCheckResult]: Stem: 107#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~z~0 := main_#t~nondet1;havoc main_#t~nondet1; 108#L20 assume !!(-268435455 <= main_~y~0); 118#L21 assume !!(-268435455 <= main_~z~0); 116#L22 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2;main_~x~0 := -1; 111#L22-2 assume !(main_~x~0 > 0);main_~x~0 := main_~x~0 - 1; 112#L27-1 assume !(main_~x~0 > 0);main_~x~0 := main_~x~0 - 1; 109#L32-1 assume !(main_~x~0 > 0);main_~x~0 := main_~x~0 - 1; 110#L37-1 assume !(main_~x~0 > 0);main_~x~0 := main_~x~0 - 1; 113#L42-1 assume !(main_~x~0 > 0);main_~x~0 := main_~x~0 - 1; 123#L47-1 assume !(main_~x~0 > 0);main_~x~0 := main_~x~0 - 1; 120#L52-1 assume !(main_~x~0 > 0);main_~x~0 := main_~x~0 - 1; 121#L57-1 assume !(main_~x~0 > 0);main_~x~0 := main_~x~0 - 1; 114#L67-1 [2021-10-21 19:05:22,064 INFO L793 eck$LassoCheckResult]: Loop: 114#L67-1 assume !!(main_~y~0 < 100 && main_~z~0 < 100);main_~y~0 := main_~y~0 + main_~x~0;main_~z~0 := main_~z~0 - main_~x~0; 114#L67-1 [2021-10-21 19:05:22,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:05:22,065 INFO L82 PathProgramCache]: Analyzing trace with hash 701899747, now seen corresponding path program 1 times [2021-10-21 19:05:22,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:05:22,066 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756514348] [2021-10-21 19:05:22,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:05:22,066 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:05:22,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:05:22,101 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:05:22,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:05:22,135 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:05:22,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:05:22,136 INFO L82 PathProgramCache]: Analyzing trace with hash 104, now seen corresponding path program 3 times [2021-10-21 19:05:22,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:05:22,136 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849054617] [2021-10-21 19:05:22,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:05:22,137 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:05:22,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:05:22,141 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:05:22,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:05:22,145 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:05:22,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:05:22,146 INFO L82 PathProgramCache]: Analyzing trace with hash 284055750, now seen corresponding path program 1 times [2021-10-21 19:05:22,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:05:22,147 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51570677] [2021-10-21 19:05:22,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:05:22,147 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:05:22,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:05:22,178 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:05:22,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:05:22,205 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:05:22,417 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:05:22,418 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:05:22,418 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:05:22,418 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:05:22,418 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 19:05:22,419 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:05:22,419 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:05:22,419 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:05:22,419 INFO L133 ssoRankerPreferences]: Filename of dumped script: Toulouse-MultiBranchesToLoop-2.c_Iteration3_Lasso [2021-10-21 19:05:22,419 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:05:22,419 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:05:22,437 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:05:22,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:05:22,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:05:22,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:05:22,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:05:22,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:05:22,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:05:22,564 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:05:22,564 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 19:05:22,567 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:05:22,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:22,573 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:05:22,580 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:05:22,580 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:05:22,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 19:05:22,616 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:05:22,616 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:05:22,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:05:22,656 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:05:22,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:22,658 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:05:22,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 19:05:22,663 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:05:22,663 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:05:22,685 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:05:22,685 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:05:22,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:05:22,713 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:05:22,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:22,715 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:05:22,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 19:05:22,728 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:05:22,728 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:05:22,747 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:05:22,747 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:05:22,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:05:22,772 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:05:22,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:22,773 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:05:22,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 19:05:22,780 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:05:22,780 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:05:22,804 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:05:22,805 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:05:22,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-10-21 19:05:22,824 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:05:22,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:22,825 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:05:22,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 19:05:22,834 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:05:22,834 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:05:22,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:05:22,901 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:05:22,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:22,908 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:05:22,914 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:05:22,914 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:05:22,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-21 19:05:22,972 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 19:05:22,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:05:22,980 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:05:22,980 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:05:22,980 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:05:22,980 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:05:22,980 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:05:22,981 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:05:22,981 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:05:22,981 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:05:22,981 INFO L133 ssoRankerPreferences]: Filename of dumped script: Toulouse-MultiBranchesToLoop-2.c_Iteration3_Lasso [2021-10-21 19:05:22,981 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:05:22,981 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:05:22,983 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:05:22,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:05:22,992 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:05:22,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:05:23,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:05:23,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:05:23,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:05:23,075 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:05:23,079 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:05:23,080 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:05:23,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:23,082 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:05:23,092 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:05:23,102 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:05:23,102 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:05:23,102 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:05:23,102 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:05:23,107 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:05:23,107 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:05:23,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-21 19:05:23,132 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:05:23,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:05:23,172 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:05:23,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:23,173 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:05:23,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-21 19:05:23,174 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:05:23,181 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:05:23,181 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:05:23,182 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:05:23,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:05:23,182 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:05:23,184 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:05:23,184 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:05:23,191 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:05:23,211 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-10-21 19:05:23,211 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:05:23,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:23,212 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:05:23,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-21 19:05:23,217 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:05:23,224 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:05:23,224 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:05:23,224 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:05:23,224 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:05:23,224 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:05:23,225 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:05:23,225 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:05:23,235 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:05:23,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-21 19:05:23,255 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:05:23,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:23,256 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:05:23,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-21 19:05:23,258 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:05:23,269 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:05:23,270 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:05:23,270 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:05:23,270 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:05:23,281 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:05:23,283 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:05:23,304 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:05:23,321 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-10-21 19:05:23,321 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-10-21 19:05:23,323 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:05:23,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:23,329 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:05:23,365 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:05:23,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-21 19:05:23,397 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-10-21 19:05:23,397 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:05:23,397 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = -1*ULTIMATE.start_main_~z~0 + 100 Supporting invariants [-1*ULTIMATE.start_main_~x~0 - 2 >= 0] [2021-10-21 19:05:23,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-21 19:05:23,437 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2021-10-21 19:05:23,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:05:23,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:05:23,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-21 19:05:23,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:05:23,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:05:23,766 WARN L261 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 19:05:23,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:05:23,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:05:23,769 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.9 stem predicates 1 loop predicates [2021-10-21 19:05:23,770 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 22 transitions. cyclomatic complexity: 2 Second operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:23,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-21 19:05:23,999 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 22 transitions. cyclomatic complexity: 2. Second operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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 23 states and 24 transitions. Complement of second has 10 states. [2021-10-21 19:05:23,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 9 stem states 0 non-accepting loop states 1 accepting loop states [2021-10-21 19:05:24,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:24,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 23 transitions. [2021-10-21 19:05:24,002 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 23 transitions. Stem has 12 letters. Loop has 1 letters. [2021-10-21 19:05:24,003 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:05:24,003 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 23 transitions. Stem has 13 letters. Loop has 1 letters. [2021-10-21 19:05:24,003 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:05:24,003 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 23 transitions. Stem has 12 letters. Loop has 2 letters. [2021-10-21 19:05:24,003 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:05:24,003 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 24 transitions. [2021-10-21 19:05:24,004 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 19:05:24,005 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 13 states and 13 transitions. [2021-10-21 19:05:24,005 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-10-21 19:05:24,005 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-10-21 19:05:24,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 13 transitions. [2021-10-21 19:05:24,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:05:24,006 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-10-21 19:05:24,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 13 transitions. [2021-10-21 19:05:24,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-21 19:05:24,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.0) internal successors, (13), 12 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:24,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-10-21 19:05:24,007 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-10-21 19:05:24,007 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-10-21 19:05:24,007 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-21 19:05:24,008 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 13 transitions. [2021-10-21 19:05:24,008 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 19:05:24,008 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:05:24,008 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:05:24,009 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:05:24,009 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-21 19:05:24,009 INFO L791 eck$LassoCheckResult]: Stem: 238#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~z~0 := main_#t~nondet1;havoc main_#t~nondet1; 239#L20 assume !!(-268435455 <= main_~y~0); 247#L21 assume !!(-268435455 <= main_~z~0); 245#L22 assume 0 != main_#t~nondet2;havoc main_#t~nondet2;main_~x~0 := 1; 242#L22-2 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 243#L27-1 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 240#L32-1 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 241#L37-1 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 236#L42-1 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 237#L47-1 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 246#L52-1 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 248#L57-1 assume main_~x~0 > 0;main_~x~0 := 1 + main_~x~0; 244#L67-1 [2021-10-21 19:05:24,009 INFO L793 eck$LassoCheckResult]: Loop: 244#L67-1 assume !!(main_~y~0 < 100 && main_~z~0 < 100);main_~y~0 := main_~y~0 + main_~x~0;main_~z~0 := main_~z~0 - main_~x~0; 244#L67-1 [2021-10-21 19:05:24,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:05:24,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1002986271, now seen corresponding path program 1 times [2021-10-21 19:05:24,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:05:24,010 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627319353] [2021-10-21 19:05:24,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:05:24,010 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:05:24,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:05:24,021 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:05:24,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:05:24,031 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:05:24,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:05:24,032 INFO L82 PathProgramCache]: Analyzing trace with hash 104, now seen corresponding path program 4 times [2021-10-21 19:05:24,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:05:24,032 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548329052] [2021-10-21 19:05:24,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:05:24,032 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:05:24,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:05:24,037 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:05:24,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:05:24,040 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:05:24,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:05:24,040 INFO L82 PathProgramCache]: Analyzing trace with hash -1027803256, now seen corresponding path program 1 times [2021-10-21 19:05:24,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:05:24,041 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043070263] [2021-10-21 19:05:24,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:05:24,041 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:05:24,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:05:24,053 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:05:24,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:05:24,065 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:05:24,216 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:05:24,216 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:05:24,216 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:05:24,216 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:05:24,216 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 19:05:24,216 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:05:24,217 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:05:24,217 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:05:24,217 INFO L133 ssoRankerPreferences]: Filename of dumped script: Toulouse-MultiBranchesToLoop-2.c_Iteration4_Lasso [2021-10-21 19:05:24,217 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:05:24,217 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:05:24,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:05:24,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:05:24,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:05:24,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:05:24,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:05:24,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:05:24,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:05:24,306 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:05:24,306 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 19:05:24,307 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:05:24,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:24,308 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:05:24,315 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:05:24,315 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:05:24,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-21 19:05:24,345 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:05:24,345 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: [] [2021-10-21 19:05:24,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-21 19:05:24,384 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:05:24,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:24,388 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:05:24,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-21 19:05:24,394 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:05:24,395 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:05:24,411 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:05:24,412 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:05:24,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-21 19:05:24,434 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:05:24,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:24,435 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:05:24,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-21 19:05:24,440 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:05:24,440 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:05:24,448 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:05:24,448 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:05:24,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-21 19:05:24,468 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:05:24,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:24,469 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:05:24,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-21 19:05:24,471 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:05:24,471 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:05:24,483 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:05:24,483 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:05:24,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-21 19:05:24,505 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:05:24,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:24,506 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:05:24,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-21 19:05:24,511 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:05:24,511 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:05:24,524 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:05:24,524 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: [] [2021-10-21 19:05:24,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-21 19:05:24,544 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:05:24,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:24,545 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:05:24,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-21 19:05:24,549 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:05:24,549 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:05:24,564 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:05:24,564 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:05:24,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-21 19:05:24,584 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:05:24,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:24,584 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:05:24,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-21 19:05:24,586 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:05:24,586 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:05:24,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-21 19:05:24,621 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:05:24,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:24,622 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:05:24,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-21 19:05:24,625 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:05:24,625 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:05:24,688 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 19:05:24,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-21 19:05:24,692 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:05:24,692 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:05:24,692 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:05:24,692 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:05:24,692 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:05:24,692 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:05:24,692 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:05:24,692 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:05:24,692 INFO L133 ssoRankerPreferences]: Filename of dumped script: Toulouse-MultiBranchesToLoop-2.c_Iteration4_Lasso [2021-10-21 19:05:24,692 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:05:24,692 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:05:24,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:05:24,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:05:24,706 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:05:24,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:05:24,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:05:24,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:05:24,718 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:05:24,791 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:05:24,791 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:05:24,791 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:05:24,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:24,792 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:05:24,796 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:05:24,805 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:05:24,805 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:05:24,805 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:05:24,806 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:05:24,808 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:05:24,808 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:05:24,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-21 19:05:24,823 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:05:24,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-21 19:05:24,853 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:05:24,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:24,857 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:05:24,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-21 19:05:24,860 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:05:24,869 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:05:24,869 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:05:24,870 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:05:24,870 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:05:24,870 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:05:24,870 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:05:24,871 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:05:24,883 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:05:24,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-21 19:05:24,919 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:05:24,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:24,920 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:05:24,925 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:05:24,934 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:05:24,935 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:05:24,935 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:05:24,935 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:05:24,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:05:24,936 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:05:24,936 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:05:24,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-21 19:05:24,955 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:05:24,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-21 19:05:24,988 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:05:24,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:24,992 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:05:24,994 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:05:25,004 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:05:25,004 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:05:25,004 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:05:25,004 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:05:25,004 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:05:25,005 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:05:25,005 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:05:25,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-21 19:05:25,015 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:05:25,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-21 19:05:25,050 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:05:25,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:25,052 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:05:25,053 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:05:25,064 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:05:25,064 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:05:25,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:05:25,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:05:25,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:05:25,065 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:05:25,065 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:05:25,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-21 19:05:25,078 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:05:25,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-21 19:05:25,112 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:05:25,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:25,114 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:05:25,116 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:05:25,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:05:25,125 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:05:25,125 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:05:25,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:05:25,128 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:05:25,129 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:05:25,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-21 19:05:25,144 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:05:25,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-21 19:05:25,181 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:05:25,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:25,184 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:05:25,186 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:05:25,195 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:05:25,196 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:05:25,196 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:05:25,196 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:05:25,202 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:05:25,202 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:05:25,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-21 19:05:25,222 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:05:25,264 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-10-21 19:05:25,265 INFO L444 ModelExtractionUtils]: 0 out of 13 variables were initially zero. Simplification set additionally 8 variables to zero. [2021-10-21 19:05:25,265 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:05:25,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:05:25,267 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:05:25,271 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:05:25,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-21 19:05:25,300 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-10-21 19:05:25,301 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:05:25,301 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -1*ULTIMATE.start_main_~y~0 + 100 Supporting invariants [1*ULTIMATE.start_main_~x~0 - 2 >= 0] [2021-10-21 19:05:25,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-21 19:05:25,342 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2021-10-21 19:05:25,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:05:25,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:05:25,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-21 19:05:25,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:05:25,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-21 19:05:25,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:05:25,580 WARN L261 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 19:05:25,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:05:25,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:05:25,581 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.8 stem predicates 1 loop predicates [2021-10-21 19:05:25,581 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 13 transitions. cyclomatic complexity: 1 Second operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:25,694 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 13 transitions. cyclomatic complexity: 1. Second operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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 14 transitions. Complement of second has 9 states. [2021-10-21 19:05:25,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 8 stem states 0 non-accepting loop states 1 accepting loop states [2021-10-21 19:05:25,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:05:25,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 13 transitions. [2021-10-21 19:05:25,695 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 13 transitions. Stem has 12 letters. Loop has 1 letters. [2021-10-21 19:05:25,696 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:05:25,696 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 13 transitions. Stem has 13 letters. Loop has 1 letters. [2021-10-21 19:05:25,696 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:05:25,696 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 13 transitions. Stem has 12 letters. Loop has 2 letters. [2021-10-21 19:05:25,697 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:05:25,697 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 14 transitions. [2021-10-21 19:05:25,697 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:05:25,698 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2021-10-21 19:05:25,698 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 19:05:25,698 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 19:05:25,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 19:05:25,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:05:25,698 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:05:25,698 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:05:25,699 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:05:25,699 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-21 19:05:25,699 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:05:25,699 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:05:25,699 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-21 19:05:25,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:05:25 BoogieIcfgContainer [2021-10-21 19:05:25,705 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:05:25,706 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:05:25,706 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:05:25,706 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:05:25,706 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:05:21" (3/4) ... [2021-10-21 19:05:25,709 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:05:25,710 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:05:25,711 INFO L168 Benchmark]: Toolchain (without parser) took 4983.99 ms. Allocated memory was 138.4 MB in the beginning and 167.8 MB in the end (delta: 29.4 MB). Free memory was 108.3 MB in the beginning and 123.0 MB in the end (delta: -14.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:05:25,712 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 92.3 MB. Free memory was 52.8 MB in the beginning and 52.7 MB in the end (delta: 40.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:05:25,712 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.69 ms. Allocated memory is still 138.4 MB. Free memory was 108.0 MB in the beginning and 115.6 MB in the end (delta: -7.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:05:25,713 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.31 ms. Allocated memory is still 138.4 MB. Free memory was 115.6 MB in the beginning and 114.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:05:25,713 INFO L168 Benchmark]: Boogie Preprocessor took 19.15 ms. Allocated memory is still 138.4 MB. Free memory was 114.5 MB in the beginning and 113.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:05:25,714 INFO L168 Benchmark]: RCFGBuilder took 266.84 ms. Allocated memory is still 138.4 MB. Free memory was 113.1 MB in the beginning and 104.4 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:05:25,714 INFO L168 Benchmark]: BuchiAutomizer took 4404.01 ms. Allocated memory was 138.4 MB in the beginning and 167.8 MB in the end (delta: 29.4 MB). Free memory was 104.1 MB in the beginning and 123.0 MB in the end (delta: -18.9 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:05:25,715 INFO L168 Benchmark]: Witness Printer took 4.03 ms. Allocated memory is still 167.8 MB. Free memory is still 123.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:05:25,717 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 92.3 MB. Free memory was 52.8 MB in the beginning and 52.7 MB in the end (delta: 40.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 249.69 ms. Allocated memory is still 138.4 MB. Free memory was 108.0 MB in the beginning and 115.6 MB in the end (delta: -7.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.31 ms. Allocated memory is still 138.4 MB. Free memory was 115.6 MB in the beginning and 114.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.15 ms. Allocated memory is still 138.4 MB. Free memory was 114.5 MB in the beginning and 113.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 266.84 ms. Allocated memory is still 138.4 MB. Free memory was 113.1 MB in the beginning and 104.4 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4404.01 ms. Allocated memory was 138.4 MB in the beginning and 167.8 MB in the end (delta: 29.4 MB). Free memory was 104.1 MB in the beginning and 123.0 MB in the end (delta: -18.9 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. * Witness Printer took 4.03 ms. Allocated memory is still 167.8 MB. Free memory is still 123.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (2 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 100 + -1 * z and consists of 10 locations. One deterministic module has affine ranking function -1 * y + 100 and consists of 9 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.3s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 3.1s. Construction of modules took 0.2s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 19.7ms AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 21 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 54 SDtfs, 23 SDslu, 20 SDs, 0 SdLazy, 107 SolverSat, 72 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 221.0ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN2 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital32 mio100 ax137 hnf100 lsp72 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf93 smp100 dnf100 smp100 tf100 neg100 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 52ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-21 19:05:25,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0be556-192a-4576-bf70-44f9bd71422a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...