./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN --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 da22ffb72429307957b6c0c7dbecd683a89e13ab06c6f4d1911b51bf365e4d9f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:37:58,250 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:37:58,253 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:37:58,307 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:37:58,307 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:37:58,308 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:37:58,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:37:58,313 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:37:58,315 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:37:58,316 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:37:58,322 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:37:58,328 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:37:58,328 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:37:58,338 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:37:58,339 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:37:58,341 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:37:58,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:37:58,346 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:37:58,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:37:58,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:37:58,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:37:58,366 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:37:58,368 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:37:58,369 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:37:58,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:37:58,373 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:37:58,374 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:37:58,375 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:37:58,376 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:37:58,385 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:37:58,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:37:58,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:37:58,389 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:37:58,391 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:37:58,392 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:37:58,393 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:37:58,394 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:37:58,394 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:37:58,394 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:37:58,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:37:58,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:37:58,399 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-20 11:37:58,457 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:37:58,457 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:37:58,458 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:37:58,458 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:37:58,459 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:37:58,460 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:37:58,460 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:37:58,460 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-20 11:37:58,460 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-20 11:37:58,461 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-20 11:37:58,461 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-20 11:37:58,461 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-20 11:37:58,461 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-20 11:37:58,462 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:37:58,462 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:37:58,462 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:37:58,462 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:37:58,463 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-20 11:37:58,463 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-20 11:37:58,463 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-20 11:37:58,463 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:37:58,464 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-20 11:37:58,464 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:37:58,464 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-20 11:37:58,464 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:37:58,469 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:37:58,470 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:37:58,470 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:37:58,474 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-20 11:37:58,474 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_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da22ffb72429307957b6c0c7dbecd683a89e13ab06c6f4d1911b51bf365e4d9f [2022-11-20 11:37:58,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:37:58,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:37:58,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:37:58,918 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:37:58,919 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:37:58,922 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.c [2022-11-20 11:38:02,910 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:38:03,220 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:38:03,220 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.c [2022-11-20 11:38:03,228 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/data/e8dea7ae2/a6d60714d6f84c7ba7755132428853e6/FLAG6dde11894 [2022-11-20 11:38:03,247 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/data/e8dea7ae2/a6d60714d6f84c7ba7755132428853e6 [2022-11-20 11:38:03,251 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:38:03,253 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:38:03,254 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:38:03,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:38:03,260 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:38:03,261 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:38:03" (1/1) ... [2022-11-20 11:38:03,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@509d2c8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:03, skipping insertion in model container [2022-11-20 11:38:03,263 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:38:03" (1/1) ... [2022-11-20 11:38:03,276 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:38:03,294 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:38:03,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:38:03,458 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:38:03,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:38:03,483 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:38:03,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:03 WrapperNode [2022-11-20 11:38:03,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:38:03,485 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:38:03,486 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:38:03,486 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:38:03,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:03" (1/1) ... [2022-11-20 11:38:03,502 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:03" (1/1) ... [2022-11-20 11:38:03,522 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2022-11-20 11:38:03,523 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:38:03,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:38:03,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:38:03,524 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:38:03,536 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:03" (1/1) ... [2022-11-20 11:38:03,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:03" (1/1) ... [2022-11-20 11:38:03,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:03" (1/1) ... [2022-11-20 11:38:03,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:03" (1/1) ... [2022-11-20 11:38:03,539 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:03" (1/1) ... [2022-11-20 11:38:03,544 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:03" (1/1) ... [2022-11-20 11:38:03,545 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:03" (1/1) ... [2022-11-20 11:38:03,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:03" (1/1) ... [2022-11-20 11:38:03,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:38:03,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:38:03,548 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:38:03,549 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:38:03,550 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:03" (1/1) ... [2022-11-20 11:38:03,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:03,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:03,595 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:03,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-20 11:38:03,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:38:03,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:38:03,745 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:38:03,754 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:38:03,889 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:38:03,897 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:38:03,897 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 11:38:03,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:38:03 BoogieIcfgContainer [2022-11-20 11:38:03,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:38:03,909 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-20 11:38:03,909 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-20 11:38:03,914 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-20 11:38:03,915 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 11:38:03,916 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 11:38:03" (1/3) ... [2022-11-20 11:38:03,919 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4f508bf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 11:38:03, skipping insertion in model container [2022-11-20 11:38:03,919 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 11:38:03,919 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:03" (2/3) ... [2022-11-20 11:38:03,921 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4f508bf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 11:38:03, skipping insertion in model container [2022-11-20 11:38:03,921 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 11:38:03,921 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:38:03" (3/3) ... [2022-11-20 11:38:03,923 INFO L332 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig7a.c [2022-11-20 11:38:04,066 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-20 11:38:04,066 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-20 11:38:04,066 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-20 11:38:04,067 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-20 11:38:04,067 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-20 11:38:04,067 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-20 11:38:04,067 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-20 11:38:04,067 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-20 11:38:04,073 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:38:04,131 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-20 11:38:04,131 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:38:04,132 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:38:04,139 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-20 11:38:04,139 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-20 11:38:04,139 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-20 11:38:04,140 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:38:04,141 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-20 11:38:04,141 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:38:04,141 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:38:04,142 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-20 11:38:04,142 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-20 11:38:04,152 INFO L748 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1, main_~d~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~d~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~d~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 7#L21-2true [2022-11-20 11:38:04,152 INFO L750 eck$LassoCheckResult]: Loop: 7#L21-2true assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0); 6#L21true assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~y~0#1 := main_~y~0#1 - 1;main_~d~0#1 := main_~d~0#1 - 1; 7#L21-2true [2022-11-20 11:38:04,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:04,177 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-20 11:38:04,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:04,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954373545] [2022-11-20 11:38:04,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:04,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:04,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:38:04,292 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:38:04,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:38:04,316 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:38:04,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:04,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2022-11-20 11:38:04,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:04,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283269510] [2022-11-20 11:38:04,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:04,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:04,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:38:04,350 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:38:04,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:38:04,376 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:38:04,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:04,379 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2022-11-20 11:38:04,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:04,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385832715] [2022-11-20 11:38:04,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:04,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:04,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:38:04,392 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:38:04,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:38:04,416 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:38:04,590 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 11:38:04,596 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 11:38:04,597 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 11:38:04,597 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 11:38:04,597 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 11:38:04,597 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:04,598 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 11:38:04,598 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 11:38:04,598 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration1_Loop [2022-11-20 11:38:04,598 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 11:38:04,599 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 11:38:04,624 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:04,641 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:04,647 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:04,657 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:04,668 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:04,673 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:04,836 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 11:38:04,849 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 11:38:04,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:04,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:04,861 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:04,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-20 11:38:04,882 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:38:04,882 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:38:04,935 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 11:38:04,936 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 11:38:04,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:04,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:04,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:04,951 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:04,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-20 11:38:04,962 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:38:04,962 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:38:04,988 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 11:38:04,988 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 11:38:04,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:04,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:04,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:04,997 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:05,012 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:38:05,012 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:38:05,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-20 11:38:05,054 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 11:38:05,055 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=5, ULTIMATE.start_main_#t~nondet5#1=5} Honda state: {ULTIMATE.start_main_~x~0#1=5, ULTIMATE.start_main_#t~nondet5#1=5} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 11:38:05,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:05,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:05,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:05,068 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:05,074 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:38:05,075 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:38:05,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-20 11:38:05,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:05,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:05,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:05,117 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:05,124 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 11:38:05,125 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:38:05,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-20 11:38:05,169 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 11:38:05,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:05,179 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 11:38:05,179 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 11:38:05,179 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 11:38:05,179 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 11:38:05,179 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 11:38:05,179 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:05,180 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 11:38:05,180 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 11:38:05,180 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration1_Loop [2022-11-20 11:38:05,180 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 11:38:05,180 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 11:38:05,183 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:05,195 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:05,203 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:05,215 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:05,226 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:05,237 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:05,399 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 11:38:05,406 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 11:38:05,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:05,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:05,426 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:05,446 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:38:05,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-20 11:38:05,462 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:38:05,463 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:38:05,463 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:38:05,463 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:38:05,469 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 11:38:05,470 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 11:38:05,484 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:38:05,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-11-20 11:38:05,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:05,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:05,501 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:05,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-20 11:38:05,505 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:38:05,518 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:38:05,519 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:38:05,519 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:38:05,519 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:38:05,524 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 11:38:05,525 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 11:38:05,539 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:38:05,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:05,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:05,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:05,555 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:05,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-20 11:38:05,566 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:38:05,581 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:38:05,581 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 11:38:05,582 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:38:05,582 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:38:05,582 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:38:05,584 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 11:38:05,584 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 11:38:05,595 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:38:05,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:05,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:05,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:05,617 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:05,623 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:38:05,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-20 11:38:05,639 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:38:05,639 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 11:38:05,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:38:05,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:38:05,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:38:05,642 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 11:38:05,642 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 11:38:05,653 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 11:38:05,660 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-20 11:38:05,661 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-20 11:38:05,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:05,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:05,666 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:05,680 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 11:38:05,681 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 11:38:05,681 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 11:38:05,682 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~d~0#1) = 1*ULTIMATE.start_main_~d~0#1 Supporting invariants [] [2022-11-20 11:38:05,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-20 11:38:05,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:05,691 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 11:38:05,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:05,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:05,746 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:38:05,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:38:05,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:05,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:38:05,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:38:05,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:38:05,844 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-20 11:38:05,847 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:38:05,903 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 31 transitions. Complement of second has 8 states. [2022-11-20 11:38:05,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-20 11:38:05,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:38:05,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2022-11-20 11:38:05,914 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 2 letters. Loop has 2 letters. [2022-11-20 11:38:05,915 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:38:05,915 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 2 letters. [2022-11-20 11:38:05,915 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:38:05,915 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 2 letters. Loop has 4 letters. [2022-11-20 11:38:05,916 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:38:05,917 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2022-11-20 11:38:05,919 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-20 11:38:05,923 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 8 states and 11 transitions. [2022-11-20 11:38:05,924 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-11-20 11:38:05,925 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2022-11-20 11:38:05,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2022-11-20 11:38:05,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 11:38:05,926 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-11-20 11:38:05,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2022-11-20 11:38:05,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-11-20 11:38:05,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:38:05,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2022-11-20 11:38:05,954 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-11-20 11:38:05,954 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-11-20 11:38:05,954 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-20 11:38:05,954 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2022-11-20 11:38:05,955 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-20 11:38:05,955 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:38:05,955 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:38:05,956 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-20 11:38:05,956 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-20 11:38:05,956 INFO L748 eck$LassoCheckResult]: Stem: 71#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 72#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1, main_~d~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~d~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~d~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 78#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0); 73#L21 assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_~x~0#1 - 1;main_~d~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 74#L21-2 [2022-11-20 11:38:05,957 INFO L750 eck$LassoCheckResult]: Loop: 74#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0); 77#L21 assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~y~0#1 := main_~y~0#1 - 1;main_~d~0#1 := main_~d~0#1 - 1; 74#L21-2 [2022-11-20 11:38:05,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:05,958 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2022-11-20 11:38:05,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:05,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422541286] [2022-11-20 11:38:05,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:05,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:05,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:38:05,966 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:38:05,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:38:05,973 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:38:05,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:05,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 2 times [2022-11-20 11:38:05,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:05,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721604805] [2022-11-20 11:38:05,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:05,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:05,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:38:05,982 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:38:05,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:38:05,989 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:38:05,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:05,992 INFO L85 PathProgramCache]: Analyzing trace with hash 889692235, now seen corresponding path program 1 times [2022-11-20 11:38:05,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:05,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332523256] [2022-11-20 11:38:05,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:05,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:06,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:38:06,016 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:38:06,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:38:06,032 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:38:06,121 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 11:38:06,121 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 11:38:06,121 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 11:38:06,121 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 11:38:06,121 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 11:38:06,121 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:06,122 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 11:38:06,122 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 11:38:06,122 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration2_Loop [2022-11-20 11:38:06,122 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 11:38:06,122 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 11:38:06,128 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:06,134 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:06,140 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:06,145 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:06,155 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:06,168 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:06,295 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 11:38:06,295 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 11:38:06,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:06,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:06,297 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:06,314 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:38:06,314 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:38:06,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-20 11:38:06,354 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 11:38:06,354 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 11:38:06,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:06,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:06,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:06,394 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:06,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-20 11:38:06,401 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:38:06,401 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:38:06,417 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 11:38:06,417 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3#1=0} Honda state: {ULTIMATE.start_main_#t~nondet3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 11:38:06,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:06,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:06,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:06,423 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:06,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-20 11:38:06,432 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:38:06,432 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:38:06,455 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 11:38:06,455 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 11:38:06,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2022-11-20 11:38:06,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:06,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:06,463 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:06,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-20 11:38:06,467 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:38:06,467 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:38:06,491 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 11:38:06,492 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=5, ULTIMATE.start_main_#t~nondet5#1=5} Honda state: {ULTIMATE.start_main_~x~0#1=5, ULTIMATE.start_main_#t~nondet5#1=5} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 11:38:06,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:06,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:06,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:06,499 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:06,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-20 11:38:06,503 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:38:06,503 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:38:06,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:06,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:06,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:06,535 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:06,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-20 11:38:06,542 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 11:38:06,542 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:38:06,590 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 11:38:06,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:06,596 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 11:38:06,596 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 11:38:06,596 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 11:38:06,596 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 11:38:06,596 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 11:38:06,596 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:06,596 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 11:38:06,597 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 11:38:06,597 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration2_Loop [2022-11-20 11:38:06,597 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 11:38:06,597 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 11:38:06,599 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:06,610 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:06,614 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:06,622 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:06,627 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:06,641 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:06,744 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 11:38:06,744 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 11:38:06,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:06,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:06,747 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:06,768 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:38:06,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-20 11:38:06,785 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:38:06,786 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 11:38:06,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:38:06,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:38:06,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:38:06,787 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 11:38:06,787 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 11:38:06,797 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:38:06,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:06,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:06,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:06,809 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:06,820 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:38:06,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-20 11:38:06,836 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:38:06,837 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:38:06,837 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:38:06,837 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:38:06,840 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 11:38:06,840 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 11:38:06,857 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:38:06,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:06,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:06,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:06,869 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:06,886 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:38:06,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-20 11:38:06,902 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:38:06,902 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 11:38:06,902 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:38:06,903 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:38:06,903 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:38:06,904 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 11:38:06,904 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 11:38:06,921 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:38:06,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:06,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:06,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:06,933 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:06,944 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:38:06,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-20 11:38:06,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:38:06,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:38:06,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:38:06,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:38:06,972 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 11:38:06,972 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 11:38:06,993 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:38:07,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:07,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:07,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:07,003 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:07,008 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:38:07,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-20 11:38:07,024 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:38:07,024 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 11:38:07,024 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:38:07,024 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:38:07,025 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:38:07,026 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 11:38:07,026 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 11:38:07,036 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 11:38:07,040 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-20 11:38:07,040 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-20 11:38:07,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:07,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:07,048 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:07,050 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 11:38:07,050 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 11:38:07,050 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 11:38:07,051 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~d~0#1) = 1*ULTIMATE.start_main_~d~0#1 Supporting invariants [] [2022-11-20 11:38:07,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-20 11:38:07,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:07,063 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 11:38:07,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:07,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:07,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:38:07,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:38:07,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:07,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:38:07,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:38:07,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:38:07,157 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-20 11:38:07,157 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:38:07,184 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 17 transitions. Complement of second has 5 states. [2022-11-20 11:38:07,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-20 11:38:07,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:38:07,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2022-11-20 11:38:07,188 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2022-11-20 11:38:07,192 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:38:07,192 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2022-11-20 11:38:07,192 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:38:07,193 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2022-11-20 11:38:07,193 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:38:07,193 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2022-11-20 11:38:07,195 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-20 11:38:07,196 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2022-11-20 11:38:07,197 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-11-20 11:38:07,198 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-11-20 11:38:07,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2022-11-20 11:38:07,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 11:38:07,199 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2022-11-20 11:38:07,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2022-11-20 11:38:07,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-20 11:38:07,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:38:07,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2022-11-20 11:38:07,203 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2022-11-20 11:38:07,203 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2022-11-20 11:38:07,203 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-20 11:38:07,203 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 17 transitions. [2022-11-20 11:38:07,206 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-20 11:38:07,206 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:38:07,206 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:38:07,206 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1] [2022-11-20 11:38:07,207 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-20 11:38:07,207 INFO L748 eck$LassoCheckResult]: Stem: 129#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 130#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1, main_~d~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~d~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~d~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 137#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0); 131#L21 assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_~x~0#1 - 1;main_~d~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 132#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0); 138#L21 assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_~x~0#1 - 1;main_~d~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 135#L21-2 [2022-11-20 11:38:07,207 INFO L750 eck$LassoCheckResult]: Loop: 135#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0); 136#L21 assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~y~0#1 := main_~y~0#1 - 1;main_~d~0#1 := main_~d~0#1 - 1; 135#L21-2 [2022-11-20 11:38:07,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:07,222 INFO L85 PathProgramCache]: Analyzing trace with hash 889692233, now seen corresponding path program 2 times [2022-11-20 11:38:07,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:07,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738619872] [2022-11-20 11:38:07,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:07,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:07,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:38:07,237 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:38:07,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:38:07,255 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:38:07,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:07,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 3 times [2022-11-20 11:38:07,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:07,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405913511] [2022-11-20 11:38:07,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:07,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:07,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:38:07,266 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:38:07,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:38:07,280 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:38:07,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:07,281 INFO L85 PathProgramCache]: Analyzing trace with hash 295744366, now seen corresponding path program 2 times [2022-11-20 11:38:07,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:07,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801623974] [2022-11-20 11:38:07,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:07,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:07,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:38:07,296 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:38:07,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:38:07,311 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:38:07,371 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 11:38:07,371 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 11:38:07,371 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 11:38:07,371 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 11:38:07,372 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 11:38:07,372 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:07,372 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 11:38:07,372 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 11:38:07,372 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration3_Loop [2022-11-20 11:38:07,372 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 11:38:07,373 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 11:38:07,383 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:07,390 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:07,394 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:07,398 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:07,406 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:07,410 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:07,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:07,563 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 11:38:07,564 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 11:38:07,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:07,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:07,566 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:07,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:07,579 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:38:07,579 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:38:07,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-20 11:38:07,614 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 11:38:07,614 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=5, ULTIMATE.start_main_#t~nondet5#1=5} Honda state: {ULTIMATE.start_main_~x~0#1=5, ULTIMATE.start_main_#t~nondet5#1=5} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 11:38:07,619 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2022-11-20 11:38:07,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:07,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:07,621 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:07,630 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:38:07,630 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:38:07,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-20 11:38:07,658 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 11:38:07,658 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 11:38:07,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:07,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:07,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:07,670 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:07,676 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:38:07,676 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:38:07,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-20 11:38:07,702 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 11:38:07,702 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3#1=0} Honda state: {ULTIMATE.start_main_#t~nondet3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 11:38:07,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:07,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:07,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:07,717 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:07,722 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:38:07,722 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:38:07,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-20 11:38:07,742 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2022-11-20 11:38:07,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:07,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:07,745 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:07,748 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 11:38:07,748 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:38:07,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-20 11:38:07,781 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 11:38:07,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2022-11-20 11:38:07,785 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 11:38:07,785 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 11:38:07,785 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 11:38:07,786 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 11:38:07,786 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 11:38:07,786 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:07,786 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 11:38:07,786 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 11:38:07,786 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration3_Loop [2022-11-20 11:38:07,786 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 11:38:07,786 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 11:38:07,788 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:07,804 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:07,811 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:07,817 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:07,827 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:07,837 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:07,937 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 11:38:07,938 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 11:38:07,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:07,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:07,939 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:07,946 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:38:07,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-20 11:38:07,962 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:38:07,963 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 11:38:07,963 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:38:07,963 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:38:07,963 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:38:07,964 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 11:38:07,965 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 11:38:07,981 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:38:07,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:07,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:07,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:07,993 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:07,998 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:38:08,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-20 11:38:08,015 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:38:08,016 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 11:38:08,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:38:08,016 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:38:08,016 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:38:08,017 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 11:38:08,017 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 11:38:08,033 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:38:08,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:08,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:08,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:08,044 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:08,049 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:38:08,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-20 11:38:08,065 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:38:08,066 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:38:08,066 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:38:08,066 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:38:08,070 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 11:38:08,070 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 11:38:08,089 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:38:08,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:08,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:08,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:08,102 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:08,110 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:38:08,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-20 11:38:08,126 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:38:08,126 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 11:38:08,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:38:08,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:38:08,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:38:08,129 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 11:38:08,129 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 11:38:08,145 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 11:38:08,148 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-20 11:38:08,148 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-20 11:38:08,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:08,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:08,150 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:08,158 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 11:38:08,158 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 11:38:08,158 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 11:38:08,158 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~d~0#1) = 1*ULTIMATE.start_main_~d~0#1 Supporting invariants [] [2022-11-20 11:38:08,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-11-20 11:38:08,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:08,169 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 11:38:08,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:08,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:08,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:38:08,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:38:08,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:08,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:38:08,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:38:08,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:38:08,247 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-20 11:38:08,248 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:38:08,269 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 21 transitions. Complement of second has 5 states. [2022-11-20 11:38:08,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-20 11:38:08,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:38:08,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2022-11-20 11:38:08,273 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2022-11-20 11:38:08,273 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:38:08,274 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-20 11:38:08,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:08,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:08,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:38:08,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:38:08,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:08,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:38:08,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:38:08,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:38:08,347 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-20 11:38:08,348 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:38:08,365 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 21 transitions. Complement of second has 5 states. [2022-11-20 11:38:08,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-20 11:38:08,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:38:08,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2022-11-20 11:38:08,367 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2022-11-20 11:38:08,367 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:38:08,368 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-20 11:38:08,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:08,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:08,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:38:08,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:38:08,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:08,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:38:08,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:38:08,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:38:08,427 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-20 11:38:08,427 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:38:08,448 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 24 transitions. Complement of second has 4 states. [2022-11-20 11:38:08,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-20 11:38:08,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:38:08,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2022-11-20 11:38:08,453 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2022-11-20 11:38:08,454 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:38:08,454 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 2 letters. [2022-11-20 11:38:08,454 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:38:08,455 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 4 letters. [2022-11-20 11:38:08,456 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:38:08,456 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 24 transitions. [2022-11-20 11:38:08,461 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-20 11:38:08,462 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 14 states and 20 transitions. [2022-11-20 11:38:08,462 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2022-11-20 11:38:08,462 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2022-11-20 11:38:08,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 20 transitions. [2022-11-20 11:38:08,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 11:38:08,463 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 20 transitions. [2022-11-20 11:38:08,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 20 transitions. [2022-11-20 11:38:08,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 6. [2022-11-20 11:38:08,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:38:08,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2022-11-20 11:38:08,469 INFO L240 hiAutomatonCegarLoop]: Abstraction has 6 states and 8 transitions. [2022-11-20 11:38:08,469 INFO L428 stractBuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2022-11-20 11:38:08,469 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-20 11:38:08,469 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2022-11-20 11:38:08,470 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-20 11:38:08,470 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:38:08,470 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:38:08,471 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-20 11:38:08,471 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-20 11:38:08,471 INFO L748 eck$LassoCheckResult]: Stem: 286#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 287#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1, main_~d~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~d~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~d~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 289#L21-2 [2022-11-20 11:38:08,471 INFO L750 eck$LassoCheckResult]: Loop: 289#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0); 288#L21 assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_~x~0#1 - 1;main_~d~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 289#L21-2 [2022-11-20 11:38:08,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:08,472 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2022-11-20 11:38:08,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:08,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536784160] [2022-11-20 11:38:08,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:08,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:08,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:38:08,489 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:38:08,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:38:08,496 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:38:08,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:08,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1316, now seen corresponding path program 1 times [2022-11-20 11:38:08,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:08,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485122672] [2022-11-20 11:38:08,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:08,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:08,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:38:08,514 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:38:08,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:38:08,534 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:38:08,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:08,535 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 3 times [2022-11-20 11:38:08,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:08,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338338614] [2022-11-20 11:38:08,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:08,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:08,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:38:08,541 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:38:08,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:38:08,562 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:38:08,609 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 11:38:08,609 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 11:38:08,610 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 11:38:08,610 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 11:38:08,610 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 11:38:08,610 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:08,610 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 11:38:08,610 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 11:38:08,610 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration4_Loop [2022-11-20 11:38:08,611 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 11:38:08,611 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 11:38:08,612 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:08,622 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:08,626 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:08,631 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:08,635 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:08,639 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:08,731 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 11:38:08,731 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 11:38:08,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:08,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:08,734 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:08,742 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:38:08,742 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:38:08,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-11-20 11:38:08,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:08,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:08,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:08,777 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:08,784 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 11:38:08,784 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:38:08,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-11-20 11:38:08,818 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 11:38:08,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:08,822 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 11:38:08,822 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 11:38:08,823 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 11:38:08,823 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 11:38:08,823 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 11:38:08,823 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:08,823 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 11:38:08,823 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 11:38:08,823 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration4_Loop [2022-11-20 11:38:08,823 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 11:38:08,823 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 11:38:08,825 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:08,834 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:08,838 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:08,842 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:08,846 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:08,851 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:08,933 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 11:38:08,934 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 11:38:08,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:08,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:08,937 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:08,942 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:38:08,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-11-20 11:38:08,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:38:08,959 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 11:38:08,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:38:08,959 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:38:08,959 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:38:08,960 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 11:38:08,960 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 11:38:08,977 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 11:38:08,980 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-20 11:38:08,980 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-20 11:38:08,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:08,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:08,982 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:08,990 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 11:38:08,990 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 11:38:08,990 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 11:38:08,990 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2022-11-20 11:38:08,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-11-20 11:38:09,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:09,003 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 11:38:09,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:09,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:09,024 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:38:09,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:38:09,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:09,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:38:09,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:38:09,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:38:09,051 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-20 11:38:09,051 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:38:09,064 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 18 transitions. Complement of second has 5 states. [2022-11-20 11:38:09,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-20 11:38:09,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:38:09,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2022-11-20 11:38:09,067 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 2 letters. Loop has 2 letters. [2022-11-20 11:38:09,067 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:38:09,067 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 4 letters. Loop has 2 letters. [2022-11-20 11:38:09,067 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:38:09,067 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 2 letters. Loop has 4 letters. [2022-11-20 11:38:09,067 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:38:09,067 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 18 transitions. [2022-11-20 11:38:09,068 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-20 11:38:09,069 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 10 states and 14 transitions. [2022-11-20 11:38:09,069 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2022-11-20 11:38:09,069 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2022-11-20 11:38:09,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 14 transitions. [2022-11-20 11:38:09,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 11:38:09,069 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 14 transitions. [2022-11-20 11:38:09,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 14 transitions. [2022-11-20 11:38:09,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2022-11-20 11:38:09,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 8 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) [2022-11-20 11:38:09,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 13 transitions. [2022-11-20 11:38:09,071 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 13 transitions. [2022-11-20 11:38:09,071 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2022-11-20 11:38:09,072 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-20 11:38:09,072 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 13 transitions. [2022-11-20 11:38:09,072 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-20 11:38:09,072 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:38:09,072 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:38:09,074 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2022-11-20 11:38:09,074 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-20 11:38:09,075 INFO L748 eck$LassoCheckResult]: Stem: 336#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 337#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1, main_~d~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~d~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~d~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 342#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0); 343#L21 assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~y~0#1 := main_~y~0#1 - 1;main_~d~0#1 := main_~d~0#1 - 1; 344#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0); 338#L21 [2022-11-20 11:38:09,075 INFO L750 eck$LassoCheckResult]: Loop: 338#L21 assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_~x~0#1 - 1;main_~d~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 339#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0); 338#L21 [2022-11-20 11:38:09,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:09,075 INFO L85 PathProgramCache]: Analyzing trace with hash 28699811, now seen corresponding path program 2 times [2022-11-20 11:38:09,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:09,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622803333] [2022-11-20 11:38:09,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:09,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:09,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:38:09,088 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:38:09,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:38:09,107 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:38:09,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:09,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 2 times [2022-11-20 11:38:09,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:09,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438612924] [2022-11-20 11:38:09,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:09,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:09,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:38:09,114 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:38:09,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:38:09,122 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:38:09,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:09,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1810715040, now seen corresponding path program 3 times [2022-11-20 11:38:09,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:09,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899398057] [2022-11-20 11:38:09,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:09,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:09,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:38:09,138 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:38:09,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:38:09,149 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:38:09,203 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 11:38:09,203 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 11:38:09,203 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 11:38:09,203 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 11:38:09,204 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 11:38:09,204 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:09,204 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 11:38:09,204 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 11:38:09,204 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration5_Loop [2022-11-20 11:38:09,204 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 11:38:09,205 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 11:38:09,206 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:09,210 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:09,215 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:09,223 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:09,227 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:09,231 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:09,314 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 11:38:09,314 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 11:38:09,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:09,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:09,315 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:09,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-11-20 11:38:09,319 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:38:09,319 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:38:09,349 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 11:38:09,349 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=1} Honda state: {ULTIMATE.start_main_~y~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 11:38:09,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:09,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:09,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:09,362 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:09,370 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:38:09,370 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:38:09,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-11-20 11:38:09,401 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 11:38:09,401 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3#1=4} Honda state: {ULTIMATE.start_main_#t~nondet3#1=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 11:38:09,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:09,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:09,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:09,414 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:09,423 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:38:09,423 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:38:09,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-11-20 11:38:09,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:09,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:09,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:09,461 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:09,470 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 11:38:09,470 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:38:09,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-11-20 11:38:09,556 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 11:38:09,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2022-11-20 11:38:09,560 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 11:38:09,560 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 11:38:09,560 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 11:38:09,560 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 11:38:09,560 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 11:38:09,561 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:09,561 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 11:38:09,561 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 11:38:09,561 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration5_Loop [2022-11-20 11:38:09,561 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 11:38:09,561 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 11:38:09,562 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:09,578 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:09,582 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:09,585 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:09,593 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:09,598 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:09,676 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 11:38:09,676 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 11:38:09,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:09,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:09,678 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:09,689 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:38:09,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2022-11-20 11:38:09,706 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:38:09,706 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 11:38:09,706 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:38:09,706 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:38:09,706 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:38:09,707 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 11:38:09,707 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 11:38:09,721 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:38:09,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:09,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:09,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:09,732 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:09,737 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:38:09,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2022-11-20 11:38:09,753 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:38:09,753 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 11:38:09,753 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:38:09,753 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-20 11:38:09,753 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:38:09,755 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-11-20 11:38:09,755 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 11:38:09,760 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:38:09,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:09,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:09,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:09,766 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:09,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2022-11-20 11:38:09,772 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:38:09,784 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:38:09,785 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:38:09,785 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:38:09,785 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:38:09,788 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 11:38:09,788 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 11:38:09,793 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:38:09,797 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2022-11-20 11:38:09,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:09,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:09,798 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:09,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2022-11-20 11:38:09,804 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:38:09,817 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:38:09,817 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 11:38:09,817 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:38:09,817 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:38:09,817 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:38:09,818 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 11:38:09,818 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 11:38:09,828 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 11:38:09,832 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-20 11:38:09,832 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-20 11:38:09,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:09,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:09,840 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:09,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2022-11-20 11:38:09,844 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 11:38:09,844 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 11:38:09,844 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 11:38:09,844 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2022-11-20 11:38:09,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:09,849 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 11:38:09,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:09,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:09,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:38:09,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:38:09,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:09,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:38:09,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:38:09,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:38:09,940 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-20 11:38:09,941 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:38:09,962 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 15 transitions. Complement of second has 5 states. [2022-11-20 11:38:09,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-20 11:38:09,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:38:09,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2022-11-20 11:38:09,966 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2022-11-20 11:38:09,966 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:38:09,966 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-20 11:38:09,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:09,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:09,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:38:09,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:38:10,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:10,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:38:10,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:38:10,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:38:10,030 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-20 11:38:10,030 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:38:10,053 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 15 transitions. Complement of second has 5 states. [2022-11-20 11:38:10,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-20 11:38:10,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:38:10,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2022-11-20 11:38:10,059 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2022-11-20 11:38:10,059 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:38:10,059 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-20 11:38:10,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:10,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:10,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:38:10,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:38:10,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:10,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:38:10,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:38:10,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:38:10,119 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-20 11:38:10,119 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:38:10,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:10,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:10,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:10,172 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 20 transitions. Complement of second has 4 states. [2022-11-20 11:38:10,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-20 11:38:10,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:38:10,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2022-11-20 11:38:10,174 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2022-11-20 11:38:10,174 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:38:10,174 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2022-11-20 11:38:10,174 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:38:10,175 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 4 letters. [2022-11-20 11:38:10,175 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:38:10,175 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 20 transitions. [2022-11-20 11:38:10,176 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2022-11-20 11:38:10,177 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 12 states and 17 transitions. [2022-11-20 11:38:10,177 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2022-11-20 11:38:10,177 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2022-11-20 11:38:10,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2022-11-20 11:38:10,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 11:38:10,178 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2022-11-20 11:38:10,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2022-11-20 11:38:10,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 8. [2022-11-20 11:38:10,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:38:10,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2022-11-20 11:38:10,180 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-11-20 11:38:10,180 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2022-11-20 11:38:10,181 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-20 11:38:10,181 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2022-11-20 11:38:10,181 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 11:38:10,181 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:38:10,181 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:38:10,183 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2022-11-20 11:38:10,183 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2022-11-20 11:38:10,184 INFO L748 eck$LassoCheckResult]: Stem: 473#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 474#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1, main_~d~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~d~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~d~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 479#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0); 477#L21 assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~y~0#1 := main_~y~0#1 - 1;main_~d~0#1 := main_~d~0#1 - 1; 478#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0); 475#L21 [2022-11-20 11:38:10,184 INFO L750 eck$LassoCheckResult]: Loop: 475#L21 assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_~x~0#1 - 1;main_~d~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 476#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0); 477#L21 assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~y~0#1 := main_~y~0#1 - 1;main_~d~0#1 := main_~d~0#1 - 1; 478#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0); 475#L21 [2022-11-20 11:38:10,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:10,185 INFO L85 PathProgramCache]: Analyzing trace with hash 28699811, now seen corresponding path program 3 times [2022-11-20 11:38:10,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:10,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162146991] [2022-11-20 11:38:10,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:10,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:10,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:38:10,205 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:38:10,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:38:10,215 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:38:10,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:10,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1351673, now seen corresponding path program 1 times [2022-11-20 11:38:10,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:10,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816302585] [2022-11-20 11:38:10,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:10,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:10,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:38:10,240 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:38:10,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:38:10,249 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:38:10,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:10,252 INFO L85 PathProgramCache]: Analyzing trace with hash 635399067, now seen corresponding path program 4 times [2022-11-20 11:38:10,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:10,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966113999] [2022-11-20 11:38:10,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:10,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:10,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:38:10,273 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:38:10,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:38:10,285 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:38:10,408 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 11:38:10,408 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 11:38:10,408 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 11:38:10,409 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 11:38:10,409 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 11:38:10,409 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:10,409 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 11:38:10,409 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 11:38:10,409 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration6_Loop [2022-11-20 11:38:10,409 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 11:38:10,409 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 11:38:10,411 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:10,416 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:10,420 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:10,426 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:10,439 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:10,443 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:10,451 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:10,558 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 11:38:10,558 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 11:38:10,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:10,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:10,563 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:10,568 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:38:10,568 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:38:10,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2022-11-20 11:38:10,598 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 11:38:10,598 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3#1=4} Honda state: {ULTIMATE.start_main_#t~nondet3#1=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 11:38:10,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:10,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:10,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:10,604 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:10,610 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:38:10,610 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:38:10,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2022-11-20 11:38:10,641 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 11:38:10,641 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 11:38:10,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2022-11-20 11:38:10,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:10,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:10,645 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:10,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2022-11-20 11:38:10,649 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:38:10,649 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:38:10,671 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 11:38:10,672 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 11:38:10,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2022-11-20 11:38:10,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:10,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:10,676 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:10,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2022-11-20 11:38:10,682 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:38:10,682 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:38:10,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:10,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:10,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:10,705 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:10,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2022-11-20 11:38:10,710 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 11:38:10,710 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:38:10,806 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 11:38:10,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:10,809 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 11:38:10,810 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 11:38:10,810 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 11:38:10,810 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 11:38:10,810 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 11:38:10,810 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:10,810 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 11:38:10,810 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 11:38:10,810 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration6_Loop [2022-11-20 11:38:10,810 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 11:38:10,810 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 11:38:10,812 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:10,821 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:10,825 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:10,833 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:10,841 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:10,848 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:10,852 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:38:10,952 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 11:38:10,952 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 11:38:10,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:10,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:10,954 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:10,962 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:38:10,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2022-11-20 11:38:10,978 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:38:10,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:38:10,978 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:38:10,978 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:38:10,981 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 11:38:10,981 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 11:38:10,993 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:38:10,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:10,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:10,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:10,999 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:11,003 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:38:11,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2022-11-20 11:38:11,019 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:38:11,020 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 11:38:11,020 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:38:11,020 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:38:11,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:38:11,021 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 11:38:11,021 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 11:38:11,037 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:38:11,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:11,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:11,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:11,043 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:11,047 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 11:38:11,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2022-11-20 11:38:11,064 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:38:11,064 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 11:38:11,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:38:11,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:38:11,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:38:11,065 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 11:38:11,066 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 11:38:11,081 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 11:38:11,095 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-20 11:38:11,095 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-20 11:38:11,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:38:11,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:11,097 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:11,102 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 11:38:11,102 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 11:38:11,102 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 11:38:11,102 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2022-11-20 11:38:11,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2022-11-20 11:38:11,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:11,107 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 11:38:11,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:11,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:11,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 11:38:11,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:38:11,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:11,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:38:11,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:38:11,174 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 11:38:11,175 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-20 11:38:11,175 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:38:11,210 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 32 transitions. Complement of second has 6 states. [2022-11-20 11:38:11,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-20 11:38:11,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:38:11,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2022-11-20 11:38:11,213 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 5 letters. Loop has 4 letters. [2022-11-20 11:38:11,213 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:38:11,213 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 9 letters. Loop has 4 letters. [2022-11-20 11:38:11,213 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:38:11,213 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 5 letters. Loop has 8 letters. [2022-11-20 11:38:11,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:38:11,214 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 32 transitions. [2022-11-20 11:38:11,221 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-20 11:38:11,221 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 0 states and 0 transitions. [2022-11-20 11:38:11,223 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-20 11:38:11,223 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-20 11:38:11,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-20 11:38:11,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:38:11,224 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 11:38:11,224 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 11:38:11,224 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 11:38:11,224 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-20 11:38:11,225 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-20 11:38:11,225 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-20 11:38:11,225 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-20 11:38:11,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 11:38:11 BoogieIcfgContainer [2022-11-20 11:38:11,236 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-20 11:38:11,237 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:38:11,237 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:38:11,237 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:38:11,238 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:38:03" (3/4) ... [2022-11-20 11:38:11,242 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 11:38:11,242 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:38:11,243 INFO L158 Benchmark]: Toolchain (without parser) took 7990.47ms. Allocated memory was 142.6MB in the beginning and 182.5MB in the end (delta: 39.8MB). Free memory was 108.1MB in the beginning and 107.5MB in the end (delta: 664.1kB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. [2022-11-20 11:38:11,243 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 142.6MB. Free memory is still 114.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:38:11,244 INFO L158 Benchmark]: CACSL2BoogieTranslator took 230.04ms. Allocated memory is still 142.6MB. Free memory was 108.1MB in the beginning and 99.3MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 11:38:11,244 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.80ms. Allocated memory is still 142.6MB. Free memory was 99.3MB in the beginning and 97.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:38:11,245 INFO L158 Benchmark]: Boogie Preprocessor took 23.45ms. Allocated memory is still 142.6MB. Free memory was 97.6MB in the beginning and 96.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:38:11,245 INFO L158 Benchmark]: RCFGBuilder took 351.99ms. Allocated memory is still 142.6MB. Free memory was 96.6MB in the beginning and 88.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 11:38:11,246 INFO L158 Benchmark]: BuchiAutomizer took 7326.94ms. Allocated memory was 142.6MB in the beginning and 182.5MB in the end (delta: 39.8MB). Free memory was 87.7MB in the beginning and 108.5MB in the end (delta: -20.8MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2022-11-20 11:38:11,246 INFO L158 Benchmark]: Witness Printer took 5.56ms. Allocated memory is still 182.5MB. Free memory was 108.5MB in the beginning and 107.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:38:11,248 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 142.6MB. Free memory is still 114.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 230.04ms. Allocated memory is still 142.6MB. Free memory was 108.1MB in the beginning and 99.3MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.80ms. Allocated memory is still 142.6MB. Free memory was 99.3MB in the beginning and 97.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.45ms. Allocated memory is still 142.6MB. Free memory was 97.6MB in the beginning and 96.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 351.99ms. Allocated memory is still 142.6MB. Free memory was 96.6MB in the beginning and 88.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 7326.94ms. Allocated memory was 142.6MB in the beginning and 182.5MB in the end (delta: 39.8MB). Free memory was 87.7MB in the beginning and 108.5MB in the end (delta: -20.8MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. * Witness Printer took 5.56ms. Allocated memory is still 182.5MB. Free memory was 108.5MB in the beginning and 107.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (0 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has affine ranking function d and consists of 5 locations. One deterministic module has affine ranking function d and consists of 3 locations. One deterministic module has affine ranking function x and consists of 3 locations. One deterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function d and consists of 3 locations. One nondeterministic module has affine ranking function x and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.1s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 5.8s. Construction of modules took 0.1s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 13 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/2 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 48 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 59 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 57 IncrementalHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 51 mSDtfsCounter, 57 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT6 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital26 mio100 ax145 hnf100 lsp26 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq157 hnf93 smp100 dnf100 smp100 tf113 neg100 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 77ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 15 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-20 11:38:11,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2022-11-20 11:38:11,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_534a2075-c0d6-47f5-96e9-d7f06ad67d8e/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE