./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX --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 27dab8f9dd6de13395a492c9fbbcffd97b1fd9082fe91b0943ef2aaae430e414 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 09:39:00,536 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 09:39:00,537 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 09:39:00,570 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 09:39:00,570 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 09:39:00,572 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 09:39:00,573 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 09:39:00,576 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 09:39:00,578 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 09:39:00,579 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 09:39:00,580 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 09:39:00,582 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 09:39:00,582 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 09:39:00,583 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 09:39:00,585 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 09:39:00,587 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 09:39:00,588 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 09:39:00,589 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 09:39:00,591 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 09:39:00,593 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 09:39:00,595 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 09:39:00,598 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 09:39:00,600 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 09:39:00,604 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 09:39:00,608 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 09:39:00,614 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 09:39:00,614 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 09:39:00,616 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 09:39:00,616 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 09:39:00,618 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 09:39:00,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 09:39:00,620 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 09:39:00,621 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 09:39:00,623 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 09:39:00,624 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 09:39:00,625 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 09:39:00,626 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 09:39:00,626 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 09:39:00,627 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 09:39:00,628 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 09:39:00,631 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 09:39:00,632 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-09 09:39:00,664 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 09:39:00,665 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 09:39:00,665 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 09:39:00,665 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 09:39:00,666 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 09:39:00,667 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 09:39:00,667 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 09:39:00,667 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-09 09:39:00,667 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-09 09:39:00,668 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-09 09:39:00,668 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-09 09:39:00,672 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-09 09:39:00,673 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-09 09:39:00,673 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 09:39:00,673 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-09 09:39:00,673 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 09:39:00,674 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 09:39:00,674 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-09 09:39:00,674 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-09 09:39:00,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-09 09:39:00,674 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 09:39:00,675 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-09 09:39:00,675 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 09:39:00,675 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-09 09:39:00,676 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 09:39:00,676 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 09:39:00,677 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 09:39:00,678 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 09:39:00,678 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 09:39:00,679 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-09 09:39:00,679 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_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27dab8f9dd6de13395a492c9fbbcffd97b1fd9082fe91b0943ef2aaae430e414 [2021-11-09 09:39:00,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 09:39:00,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 09:39:00,932 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 09:39:00,935 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 09:39:00,935 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 09:39:00,936 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2021-11-09 09:39:01,023 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/data/f4b650e77/b7c20e4b34204ca898f095aa10ebd303/FLAGea4203cd6 [2021-11-09 09:39:01,532 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 09:39:01,533 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum.c [2021-11-09 09:39:01,552 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/data/f4b650e77/b7c20e4b34204ca898f095aa10ebd303/FLAGea4203cd6 [2021-11-09 09:39:01,903 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/data/f4b650e77/b7c20e4b34204ca898f095aa10ebd303 [2021-11-09 09:39:01,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 09:39:01,907 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 09:39:01,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 09:39:01,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 09:39:01,925 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 09:39:01,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:39:01" (1/1) ... [2021-11-09 09:39:01,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dc6de50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:39:01, skipping insertion in model container [2021-11-09 09:39:01,928 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:39:01" (1/1) ... [2021-11-09 09:39:01,939 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 09:39:01,951 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 09:39:02,179 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:39:02,182 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 09:39:02,230 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:39:02,241 INFO L208 MainTranslator]: Completed translation [2021-11-09 09:39:02,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:39:02 WrapperNode [2021-11-09 09:39:02,242 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 09:39:02,244 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 09:39:02,244 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 09:39:02,244 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 09:39:02,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:39:02" (1/1) ... [2021-11-09 09:39:02,257 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:39:02" (1/1) ... [2021-11-09 09:39:02,275 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 09:39:02,276 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 09:39:02,276 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 09:39:02,276 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 09:39:02,284 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:39:02" (1/1) ... [2021-11-09 09:39:02,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:39:02" (1/1) ... [2021-11-09 09:39:02,285 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:39:02" (1/1) ... [2021-11-09 09:39:02,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:39:02" (1/1) ... [2021-11-09 09:39:02,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:39:02" (1/1) ... [2021-11-09 09:39:02,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:39:02" (1/1) ... [2021-11-09 09:39:02,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:39:02" (1/1) ... [2021-11-09 09:39:02,295 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 09:39:02,296 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 09:39:02,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 09:39:02,297 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 09:39:02,298 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:39:02" (1/1) ... [2021-11-09 09:39:02,306 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:02,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:02,334 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:02,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-09 09:39:02,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 09:39:02,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 09:39:02,568 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 09:39:02,568 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-09 09:39:02,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:39:02 BoogieIcfgContainer [2021-11-09 09:39:02,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 09:39:02,574 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-09 09:39:02,575 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-09 09:39:02,578 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-09 09:39:02,578 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 09:39:02,579 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 09:39:01" (1/3) ... [2021-11-09 09:39:02,581 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2cb62129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 09:39:02, skipping insertion in model container [2021-11-09 09:39:02,581 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 09:39:02,581 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:39:02" (2/3) ... [2021-11-09 09:39:02,582 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2cb62129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 09:39:02, skipping insertion in model container [2021-11-09 09:39:02,582 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 09:39:02,582 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:39:02" (3/3) ... [2021-11-09 09:39:02,584 INFO L389 chiAutomizerObserver]: Analyzing ICFG TelAviv-Amir-Minimum.c [2021-11-09 09:39:02,655 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-09 09:39:02,656 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-09 09:39:02,656 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-09 09:39:02,656 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-09 09:39:02,656 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-09 09:39:02,657 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-09 09:39:02,657 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-09 09:39:02,657 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-09 09:39:02,673 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:39:02,691 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-11-09 09:39:02,692 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:39:02,692 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:39:02,697 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-11-09 09:39:02,698 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-09 09:39:02,698 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-09 09:39:02,698 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:39:02,700 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-11-09 09:39:02,700 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:39:02,700 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:39:02,700 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-11-09 09:39:02,701 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-09 09:39:02,707 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 4#L25-2true [2021-11-09 09:39:02,707 INFO L793 eck$LassoCheckResult]: Loop: 4#L25-2true assume !!(main_~x~0 > 0 && main_~y~0 > 0); 9#L25true assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 11#L26true assume main_~x~0 < main_~y~0;main_~y~0 := main_~x~0 - 1; 8#L26-2true main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 4#L25-2true [2021-11-09 09:39:02,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:02,716 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-11-09 09:39:02,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:39:02,726 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374863049] [2021-11-09 09:39:02,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:39:02,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:39:02,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:02,809 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:39:02,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:02,837 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:39:02,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:02,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1234440, now seen corresponding path program 1 times [2021-11-09 09:39:02,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:39:02,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18549162] [2021-11-09 09:39:02,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:39:02,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:39:02,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:02,866 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:39:02,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:02,884 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:39:02,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:02,886 INFO L85 PathProgramCache]: Analyzing trace with hash 29863591, now seen corresponding path program 1 times [2021-11-09 09:39:02,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:39:02,887 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978483437] [2021-11-09 09:39:02,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:39:02,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:39:02,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:02,906 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:39:02,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:02,923 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:39:03,086 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 09:39:03,094 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 09:39:03,095 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 09:39:03,095 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 09:39:03,095 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-09 09:39:03,096 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:03,096 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 09:39:03,096 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 09:39:03,096 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration1_Loop [2021-11-09 09:39:03,097 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 09:39:03,097 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 09:39:03,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:03,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:03,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:03,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:03,248 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 09:39:03,249 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-09 09:39:03,251 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:03,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:03,265 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:03,269 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:39:03,269 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:39:03,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-09 09:39:03,287 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-09 09:39:03,287 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: [] [2021-11-09 09:39:03,310 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-11-09 09:39:03,311 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:03,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:03,312 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:03,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-09 09:39:03,314 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:39:03,314 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:39:03,328 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-09 09:39:03,328 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-09 09:39:03,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:03,348 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:03,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:03,349 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:03,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-09 09:39:03,351 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:39:03,351 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:39:03,368 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-09 09:39:03,368 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=-1} Honda state: {ULTIMATE.start_main_#t~nondet2=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-09 09:39:03,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:03,396 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:03,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:03,408 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:03,410 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:39:03,410 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:39:03,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-09 09:39:03,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:03,452 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:03,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:03,454 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:03,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-09 09:39:03,460 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-09 09:39:03,461 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:39:03,515 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-09 09:39:03,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:03,521 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 09:39:03,521 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 09:39:03,521 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 09:39:03,521 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 09:39:03,522 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-09 09:39:03,522 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:03,522 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 09:39:03,522 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 09:39:03,522 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration1_Loop [2021-11-09 09:39:03,522 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 09:39:03,522 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 09:39:03,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:03,528 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:03,532 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:03,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:03,619 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 09:39:03,623 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-09 09:39:03,625 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:03,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:03,641 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:03,690 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 09:39:03,699 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:39:03,700 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:39:03,700 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 09:39:03,700 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:39:03,705 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 09:39:03,705 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 09:39:03,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-09 09:39:03,717 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 09:39:03,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:03,759 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:03,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:03,760 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:03,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-09 09:39:03,771 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 09:39:03,779 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:39:03,779 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:39:03,779 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 09:39:03,779 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:39:03,783 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 09:39:03,783 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 09:39:03,821 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 09:39:03,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-11-09 09:39:03,843 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:03,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:03,845 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:03,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-09 09:39:03,849 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 09:39:03,857 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:39:03,858 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 09:39:03,858 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:39:03,858 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-11-09 09:39:03,858 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:39:03,860 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-09 09:39:03,860 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 09:39:03,895 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 09:39:03,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:03,922 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:03,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:03,923 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:03,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-09 09:39:03,940 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 09:39:03,949 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:39:03,949 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 09:39:03,949 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:39:03,949 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 09:39:03,949 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:39:03,954 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 09:39:03,954 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 09:39:03,969 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-09 09:39:03,974 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-11-09 09:39:03,974 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-09 09:39:03,975 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:03,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:03,981 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:03,983 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-09 09:39:03,983 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-09 09:39:03,983 INFO L513 LassoAnalysis]: Proved termination. [2021-11-09 09:39:03,984 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-11-09 09:39:04,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-09 09:39:04,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:04,027 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-09 09:39:04,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:04,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:39:04,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 09:39:04,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:39:04,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:39:04,075 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-09 09:39:04,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:39:04,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:39:04,229 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-09 09:39:04,230 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 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 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:39:04,301 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 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 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 40 states and 55 transitions. Complement of second has 8 states. [2021-11-09 09:39:04,301 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 [2021-11-09 09:39:04,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:39:04,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2021-11-09 09:39:04,306 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 4 letters. [2021-11-09 09:39:04,307 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:39:04,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 5 letters. Loop has 4 letters. [2021-11-09 09:39:04,308 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:39:04,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 8 letters. [2021-11-09 09:39:04,309 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:39:04,310 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 55 transitions. [2021-11-09 09:39:04,317 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-11-09 09:39:04,321 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 21 states and 30 transitions. [2021-11-09 09:39:04,323 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-11-09 09:39:04,323 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-11-09 09:39:04,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 30 transitions. [2021-11-09 09:39:04,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-09 09:39:04,324 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2021-11-09 09:39:04,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 30 transitions. [2021-11-09 09:39:04,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 17. [2021-11-09 09:39:04,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.411764705882353) internal successors, (24), 16 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:39:04,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 24 transitions. [2021-11-09 09:39:04,352 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2021-11-09 09:39:04,352 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2021-11-09 09:39:04,352 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-09 09:39:04,352 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 24 transitions. [2021-11-09 09:39:04,355 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-11-09 09:39:04,355 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:39:04,355 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:39:04,358 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-09 09:39:04,358 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-09 09:39:04,359 INFO L791 eck$LassoCheckResult]: Stem: 99#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 100#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 96#L25 [2021-11-09 09:39:04,359 INFO L793 eck$LassoCheckResult]: Loop: 96#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 108#L26 assume !(main_~x~0 < main_~y~0);main_~y~0 := main_~y~0 - 1; 101#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 95#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 96#L25 [2021-11-09 09:39:04,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:04,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-11-09 09:39:04,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:39:04,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858207487] [2021-11-09 09:39:04,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:39:04,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:39:04,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:04,375 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:39:04,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:04,381 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:39:04,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:04,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1328732, now seen corresponding path program 1 times [2021-11-09 09:39:04,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:39:04,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733765380] [2021-11-09 09:39:04,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:39:04,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:39:04,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:04,404 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:39:04,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:04,414 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:39:04,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:04,415 INFO L85 PathProgramCache]: Analyzing trace with hash 925773253, now seen corresponding path program 1 times [2021-11-09 09:39:04,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:39:04,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888051303] [2021-11-09 09:39:04,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:39:04,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:39:04,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:04,431 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:39:04,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:04,441 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:39:04,490 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 09:39:04,490 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 09:39:04,490 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 09:39:04,490 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 09:39:04,490 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-09 09:39:04,491 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:04,491 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 09:39:04,491 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 09:39:04,491 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration2_Loop [2021-11-09 09:39:04,491 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 09:39:04,491 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 09:39:04,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:04,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:04,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:04,514 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:04,569 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 09:39:04,569 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-09 09:39:04,570 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:04,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:04,572 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:04,581 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:39:04,581 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:39:04,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-09 09:39:04,601 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-09 09:39:04,601 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-09 09:39:04,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:04,639 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:04,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:04,640 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:04,646 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:39:04,646 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:39:04,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-09 09:39:04,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:04,705 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:04,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:04,706 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:04,715 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-09 09:39:04,715 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:39:04,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-09 09:39:04,868 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-09 09:39:04,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:04,875 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 09:39:04,875 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 09:39:04,876 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 09:39:04,876 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 09:39:04,876 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-09 09:39:04,876 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:04,876 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 09:39:04,876 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 09:39:04,876 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration2_Loop [2021-11-09 09:39:04,876 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 09:39:04,876 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 09:39:04,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:04,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:04,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:04,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:04,976 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 09:39:04,977 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-09 09:39:04,977 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:04,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:04,978 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:04,985 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 09:39:04,994 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:39:04,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:39:04,995 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 09:39:04,995 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:39:05,000 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 09:39:05,000 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 09:39:05,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-09 09:39:05,024 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 09:39:05,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:05,055 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:05,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:05,061 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:05,066 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 09:39:05,075 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:39:05,075 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 09:39:05,076 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:39:05,076 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 09:39:05,076 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:39:05,078 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 09:39:05,078 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 09:39:05,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-09 09:39:05,096 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-09 09:39:05,100 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-09 09:39:05,100 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-09 09:39:05,100 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:05,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:05,125 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:05,128 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-09 09:39:05,128 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-09 09:39:05,129 INFO L513 LassoAnalysis]: Proved termination. [2021-11-09 09:39:05,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-09 09:39:05,129 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-11-09 09:39:05,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:05,164 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-09 09:39:05,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:05,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:39:05,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 09:39:05,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:39:05,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:39:05,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 09:39:05,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:39:05,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:39:05,236 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-09 09:39:05,237 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 24 transitions. cyclomatic complexity: 10 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2021-11-09 09:39:05,272 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 24 transitions. cyclomatic complexity: 10. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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 30 states and 44 transitions. Complement of second has 7 states. [2021-11-09 09:39:05,272 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 [2021-11-09 09:39:05,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2021-11-09 09:39:05,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2021-11-09 09:39:05,274 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 4 letters. [2021-11-09 09:39:05,274 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:39:05,274 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 6 letters. Loop has 4 letters. [2021-11-09 09:39:05,274 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:39:05,274 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 8 letters. [2021-11-09 09:39:05,275 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:39:05,275 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 44 transitions. [2021-11-09 09:39:05,280 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-11-09 09:39:05,282 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 21 states and 30 transitions. [2021-11-09 09:39:05,282 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-11-09 09:39:05,282 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-11-09 09:39:05,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 30 transitions. [2021-11-09 09:39:05,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-09 09:39:05,283 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2021-11-09 09:39:05,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 30 transitions. [2021-11-09 09:39:05,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2021-11-09 09:39:05,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 18 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:39:05,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 27 transitions. [2021-11-09 09:39:05,287 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 27 transitions. [2021-11-09 09:39:05,287 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 27 transitions. [2021-11-09 09:39:05,287 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-09 09:39:05,287 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 27 transitions. [2021-11-09 09:39:05,290 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-11-09 09:39:05,290 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:39:05,290 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:39:05,290 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-09 09:39:05,291 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-09 09:39:05,291 INFO L791 eck$LassoCheckResult]: Stem: 188#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 184#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 185#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 192#L33 [2021-11-09 09:39:05,292 INFO L793 eck$LassoCheckResult]: Loop: 192#L33 assume main_~x~0 < main_~y~0;main_~x~0 := main_~x~0 - 1; 195#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 190#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 198#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 192#L33 [2021-11-09 09:39:05,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:05,293 INFO L85 PathProgramCache]: Analyzing trace with hash 31084, now seen corresponding path program 1 times [2021-11-09 09:39:05,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:39:05,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148348482] [2021-11-09 09:39:05,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:39:05,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:39:05,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:05,308 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:39:05,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:05,316 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:39:05,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:05,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1696497, now seen corresponding path program 1 times [2021-11-09 09:39:05,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:39:05,318 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273650337] [2021-11-09 09:39:05,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:39:05,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:39:05,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:05,326 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:39:05,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:05,335 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:39:05,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:05,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1357271332, now seen corresponding path program 1 times [2021-11-09 09:39:05,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:39:05,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905322697] [2021-11-09 09:39:05,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:39:05,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:39:05,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:05,341 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:39:05,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:05,347 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:39:05,381 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 09:39:05,381 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 09:39:05,382 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 09:39:05,382 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 09:39:05,382 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-09 09:39:05,382 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:05,382 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 09:39:05,382 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 09:39:05,382 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration3_Loop [2021-11-09 09:39:05,382 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 09:39:05,382 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 09:39:05,384 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:05,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:05,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:05,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:05,457 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 09:39:05,457 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-09 09:39:05,457 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:05,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:05,458 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:05,464 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:39:05,464 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:39:05,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-11-09 09:39:05,488 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-09 09:39:05,489 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-09 09:39:05,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:05,524 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:05,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:05,525 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:05,531 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:39:05,531 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:39:05,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-09 09:39:05,556 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-09 09:39:05,556 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: [] [2021-11-09 09:39:05,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:05,588 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:05,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:05,593 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:05,603 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:39:05,603 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:39:05,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-11-09 09:39:05,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:05,664 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:05,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:05,665 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:05,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-11-09 09:39:05,671 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-09 09:39:05,671 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:39:05,777 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-09 09:39:05,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:05,780 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 09:39:05,780 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 09:39:05,780 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 09:39:05,780 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 09:39:05,780 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-09 09:39:05,780 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:05,780 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 09:39:05,780 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 09:39:05,780 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration3_Loop [2021-11-09 09:39:05,780 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 09:39:05,781 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 09:39:05,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:05,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:05,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:05,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:05,895 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 09:39:05,896 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-09 09:39:05,896 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:05,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:05,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:05,924 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:05,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:05,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-11-09 09:39:05,949 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 09:39:05,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:39:05,958 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 09:39:05,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:39:05,959 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 09:39:05,959 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:39:05,960 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 09:39:05,960 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 09:39:05,976 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 09:39:06,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:06,011 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:06,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:06,013 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:06,015 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 09:39:06,024 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:39:06,024 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:39:06,024 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 09:39:06,024 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:39:06,028 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 09:39:06,028 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 09:39:06,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-11-09 09:39:06,044 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 09:39:06,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:06,080 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:06,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:06,081 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:06,083 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 09:39:06,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:39:06,092 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 09:39:06,092 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:39:06,092 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 09:39:06,092 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:39:06,095 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 09:39:06,095 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 09:39:06,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-11-09 09:39:06,101 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-09 09:39:06,103 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-11-09 09:39:06,104 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-09 09:39:06,104 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:06,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:06,105 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:06,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-11-09 09:39:06,106 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-09 09:39:06,106 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-09 09:39:06,106 INFO L513 LassoAnalysis]: Proved termination. [2021-11-09 09:39:06,106 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-11-09 09:39:06,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:06,125 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-09 09:39:06,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:06,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:39:06,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 09:39:06,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:39:06,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:39:06,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 09:39:06,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:39:06,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:39:06,220 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-09 09:39:06,220 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 11 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2021-11-09 09:39:06,266 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 27 transitions. cyclomatic complexity: 11. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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 32 states and 48 transitions. Complement of second has 7 states. [2021-11-09 09:39:06,267 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 [2021-11-09 09:39:06,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2021-11-09 09:39:06,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2021-11-09 09:39:06,268 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 3 letters. Loop has 4 letters. [2021-11-09 09:39:06,268 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:39:06,268 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 7 letters. Loop has 4 letters. [2021-11-09 09:39:06,268 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:39:06,268 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 3 letters. Loop has 8 letters. [2021-11-09 09:39:06,269 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:39:06,269 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 48 transitions. [2021-11-09 09:39:06,270 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-11-09 09:39:06,272 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 26 states and 38 transitions. [2021-11-09 09:39:06,272 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-11-09 09:39:06,272 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-11-09 09:39:06,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 38 transitions. [2021-11-09 09:39:06,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-09 09:39:06,273 INFO L681 BuchiCegarLoop]: Abstraction has 26 states and 38 transitions. [2021-11-09 09:39:06,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 38 transitions. [2021-11-09 09:39:06,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2021-11-09 09:39:06,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 23 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:39:06,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 35 transitions. [2021-11-09 09:39:06,276 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 35 transitions. [2021-11-09 09:39:06,276 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 35 transitions. [2021-11-09 09:39:06,276 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-09 09:39:06,276 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 35 transitions. [2021-11-09 09:39:06,277 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-11-09 09:39:06,277 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:39:06,277 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:39:06,278 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2021-11-09 09:39:06,278 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-09 09:39:06,278 INFO L791 eck$LassoCheckResult]: Stem: 285#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 286#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 291#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 292#L33 assume !(main_~x~0 < main_~y~0);main_~x~0 := main_~y~0 - 1; 295#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 299#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 300#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 297#L26 [2021-11-09 09:39:06,278 INFO L793 eck$LassoCheckResult]: Loop: 297#L26 assume main_~x~0 < main_~y~0;main_~y~0 := main_~x~0 - 1; 287#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 288#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 302#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 297#L26 [2021-11-09 09:39:06,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:06,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1357211759, now seen corresponding path program 1 times [2021-11-09 09:39:06,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:39:06,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332979635] [2021-11-09 09:39:06,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:39:06,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:39:06,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:06,293 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:39:06,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:06,303 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:39:06,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:06,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1419720, now seen corresponding path program 2 times [2021-11-09 09:39:06,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:39:06,307 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157256140] [2021-11-09 09:39:06,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:39:06,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:39:06,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:06,315 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:39:06,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:06,322 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:39:06,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:06,324 INFO L85 PathProgramCache]: Analyzing trace with hash -369493672, now seen corresponding path program 1 times [2021-11-09 09:39:06,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:39:06,328 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785521882] [2021-11-09 09:39:06,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:39:06,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:39:06,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:06,337 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:39:06,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:06,366 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:39:06,399 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 09:39:06,399 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 09:39:06,399 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 09:39:06,399 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 09:39:06,399 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-09 09:39:06,399 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:06,400 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 09:39:06,400 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 09:39:06,400 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration4_Loop [2021-11-09 09:39:06,400 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 09:39:06,400 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 09:39:06,402 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:06,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:06,413 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:06,416 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:06,469 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 09:39:06,469 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-09 09:39:06,469 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:06,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:06,470 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:06,477 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:39:06,477 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:39:06,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-11-09 09:39:06,509 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-09 09:39:06,509 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=-1} Honda state: {ULTIMATE.start_main_#t~nondet2=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-09 09:39:06,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:06,544 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:06,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:06,545 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:06,548 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:39:06,548 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:39:06,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-11-09 09:39:06,586 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-11-09 09:39:06,586 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:06,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:06,587 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:06,589 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-09 09:39:06,589 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:39:06,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-11-09 09:39:06,769 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-09 09:39:06,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:06,772 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 09:39:06,772 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 09:39:06,772 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 09:39:06,772 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 09:39:06,772 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-09 09:39:06,772 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:06,772 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 09:39:06,772 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 09:39:06,772 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration4_Loop [2021-11-09 09:39:06,772 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 09:39:06,773 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 09:39:06,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:06,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:06,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:06,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:06,838 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 09:39:06,838 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-09 09:39:06,838 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:06,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:06,840 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:06,860 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 09:39:06,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-11-09 09:39:06,867 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:39:06,868 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 09:39:06,868 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:39:06,868 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-11-09 09:39:06,868 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:39:06,869 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-09 09:39:06,869 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 09:39:06,882 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 09:39:06,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:06,918 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:06,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:06,919 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:06,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-11-09 09:39:06,926 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 09:39:06,934 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:39:06,934 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 09:39:06,934 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:39:06,934 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 09:39:06,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:39:06,936 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 09:39:06,936 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 09:39:06,950 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-09 09:39:06,954 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-09 09:39:06,954 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-09 09:39:06,955 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:06,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:06,960 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:06,965 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-09 09:39:06,965 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-09 09:39:06,965 INFO L513 LassoAnalysis]: Proved termination. [2021-11-09 09:39:06,965 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-11-09 09:39:06,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-11-09 09:39:07,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:07,002 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-09 09:39:07,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:07,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:39:07,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 09:39:07,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:39:07,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:39:07,055 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-09 09:39:07,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:39:07,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:39:07,103 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-09 09:39:07,103 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 35 transitions. cyclomatic complexity: 15 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:39:07,137 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 35 transitions. cyclomatic complexity: 15. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) Result 78 states and 116 transitions. Complement of second has 7 states. [2021-11-09 09:39:07,137 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 [2021-11-09 09:39:07,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:39:07,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2021-11-09 09:39:07,138 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 7 letters. Loop has 4 letters. [2021-11-09 09:39:07,138 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:39:07,138 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 11 letters. Loop has 4 letters. [2021-11-09 09:39:07,138 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:39:07,139 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 7 letters. Loop has 8 letters. [2021-11-09 09:39:07,139 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:39:07,139 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 116 transitions. [2021-11-09 09:39:07,142 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-11-09 09:39:07,143 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 55 states and 80 transitions. [2021-11-09 09:39:07,143 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2021-11-09 09:39:07,144 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2021-11-09 09:39:07,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 80 transitions. [2021-11-09 09:39:07,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-09 09:39:07,144 INFO L681 BuchiCegarLoop]: Abstraction has 55 states and 80 transitions. [2021-11-09 09:39:07,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 80 transitions. [2021-11-09 09:39:07,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 42. [2021-11-09 09:39:07,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.5) internal successors, (63), 41 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:39:07,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 63 transitions. [2021-11-09 09:39:07,149 INFO L704 BuchiCegarLoop]: Abstraction has 42 states and 63 transitions. [2021-11-09 09:39:07,149 INFO L587 BuchiCegarLoop]: Abstraction has 42 states and 63 transitions. [2021-11-09 09:39:07,149 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-09 09:39:07,149 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 63 transitions. [2021-11-09 09:39:07,150 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-11-09 09:39:07,150 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:39:07,150 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:39:07,151 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2021-11-09 09:39:07,151 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-09 09:39:07,151 INFO L791 eck$LassoCheckResult]: Stem: 445#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 446#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 469#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 470#L33 assume !(main_~x~0 < main_~y~0);main_~x~0 := main_~y~0 - 1; 462#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 463#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 473#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 474#L26 assume !(main_~x~0 < main_~y~0);main_~y~0 := main_~y~0 - 1; 447#L26-2 [2021-11-09 09:39:07,151 INFO L793 eck$LassoCheckResult]: Loop: 447#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 448#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 450#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 452#L26 assume !(main_~x~0 < main_~y~0);main_~y~0 := main_~y~0 - 1; 447#L26-2 [2021-11-09 09:39:07,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:07,152 INFO L85 PathProgramCache]: Analyzing trace with hash 876108449, now seen corresponding path program 1 times [2021-11-09 09:39:07,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:39:07,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807479525] [2021-11-09 09:39:07,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:39:07,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:39:07,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:07,159 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:39:07,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:07,169 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:39:07,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:07,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1529372, now seen corresponding path program 2 times [2021-11-09 09:39:07,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:39:07,172 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506203547] [2021-11-09 09:39:07,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:39:07,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:39:07,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:07,183 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:39:07,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:07,190 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:39:07,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:07,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1432445116, now seen corresponding path program 1 times [2021-11-09 09:39:07,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:39:07,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977487488] [2021-11-09 09:39:07,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:39:07,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:39:07,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:07,200 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:39:07,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:07,206 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:39:07,240 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 09:39:07,241 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 09:39:07,241 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 09:39:07,241 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 09:39:07,241 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-09 09:39:07,241 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:07,241 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 09:39:07,241 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 09:39:07,241 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration5_Loop [2021-11-09 09:39:07,241 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 09:39:07,241 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 09:39:07,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:07,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:07,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:07,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:07,302 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 09:39:07,302 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-09 09:39:07,302 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:07,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:07,304 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:07,309 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:39:07,309 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:39:07,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-11-09 09:39:07,344 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-11-09 09:39:07,344 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:07,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:07,345 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:07,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-11-09 09:39:07,347 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-09 09:39:07,347 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:39:07,403 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-09 09:39:07,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:07,409 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 09:39:07,409 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 09:39:07,409 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 09:39:07,409 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 09:39:07,410 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-09 09:39:07,410 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:07,410 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 09:39:07,410 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 09:39:07,410 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration5_Loop [2021-11-09 09:39:07,410 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 09:39:07,410 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 09:39:07,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:07,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:07,420 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:07,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:07,462 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 09:39:07,462 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-09 09:39:07,463 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:07,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:07,463 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:07,493 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 09:39:07,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-11-09 09:39:07,502 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:39:07,502 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:39:07,502 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 09:39:07,502 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:39:07,504 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 09:39:07,504 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 09:39:07,518 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 09:39:07,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:07,544 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:07,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:07,546 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:07,553 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 09:39:07,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-11-09 09:39:07,561 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:39:07,561 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 09:39:07,561 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:39:07,562 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 09:39:07,562 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:39:07,563 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 09:39:07,563 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 09:39:07,568 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-09 09:39:07,571 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-09 09:39:07,571 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-09 09:39:07,571 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:07,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:07,572 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:07,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-11-09 09:39:07,573 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-09 09:39:07,574 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-09 09:39:07,574 INFO L513 LassoAnalysis]: Proved termination. [2021-11-09 09:39:07,574 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-11-09 09:39:07,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:07,592 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-09 09:39:07,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:07,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:39:07,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 09:39:07,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:39:07,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:39:07,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 09:39:07,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:39:07,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:39:07,685 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-09 09:39:07,686 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 63 transitions. cyclomatic complexity: 28 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2021-11-09 09:39:07,703 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 63 transitions. cyclomatic complexity: 28. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) Result 106 states and 158 transitions. Complement of second has 7 states. [2021-11-09 09:39:07,703 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 [2021-11-09 09:39:07,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2021-11-09 09:39:07,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2021-11-09 09:39:07,704 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 8 letters. Loop has 4 letters. [2021-11-09 09:39:07,704 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:39:07,704 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 12 letters. Loop has 4 letters. [2021-11-09 09:39:07,705 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:39:07,705 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 8 letters. Loop has 8 letters. [2021-11-09 09:39:07,705 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:39:07,705 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 106 states and 158 transitions. [2021-11-09 09:39:07,708 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-11-09 09:39:07,709 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 106 states to 90 states and 129 transitions. [2021-11-09 09:39:07,709 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2021-11-09 09:39:07,709 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-11-09 09:39:07,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 90 states and 129 transitions. [2021-11-09 09:39:07,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-09 09:39:07,710 INFO L681 BuchiCegarLoop]: Abstraction has 90 states and 129 transitions. [2021-11-09 09:39:07,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states and 129 transitions. [2021-11-09 09:39:07,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 75. [2021-11-09 09:39:07,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 75 states have (on average 1.48) internal successors, (111), 74 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:39:07,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 111 transitions. [2021-11-09 09:39:07,717 INFO L704 BuchiCegarLoop]: Abstraction has 75 states and 111 transitions. [2021-11-09 09:39:07,717 INFO L587 BuchiCegarLoop]: Abstraction has 75 states and 111 transitions. [2021-11-09 09:39:07,717 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-11-09 09:39:07,717 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 75 states and 111 transitions. [2021-11-09 09:39:07,719 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2021-11-09 09:39:07,719 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:39:07,719 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:39:07,719 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1] [2021-11-09 09:39:07,719 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-09 09:39:07,720 INFO L791 eck$LassoCheckResult]: Stem: 653#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 654#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 659#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 660#L33 assume !(main_~x~0 < main_~y~0);main_~x~0 := main_~y~0 - 1; 686#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 685#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 683#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 680#L26 assume main_~x~0 < main_~y~0;main_~y~0 := main_~x~0 - 1; 679#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 678#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 674#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 675#L33 [2021-11-09 09:39:07,720 INFO L793 eck$LassoCheckResult]: Loop: 675#L33 assume main_~x~0 < main_~y~0;main_~x~0 := main_~x~0 - 1; 722#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 717#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 718#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 675#L33 [2021-11-09 09:39:07,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:07,720 INFO L85 PathProgramCache]: Analyzing trace with hash -369493663, now seen corresponding path program 2 times [2021-11-09 09:39:07,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:39:07,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549660010] [2021-11-09 09:39:07,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:39:07,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:39:07,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:07,726 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:39:07,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:07,733 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:39:07,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:07,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1696497, now seen corresponding path program 2 times [2021-11-09 09:39:07,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:39:07,733 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160327714] [2021-11-09 09:39:07,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:39:07,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:39:07,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:07,737 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:39:07,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:07,740 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:39:07,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:07,741 INFO L85 PathProgramCache]: Analyzing trace with hash -4707247, now seen corresponding path program 1 times [2021-11-09 09:39:07,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:39:07,741 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179125719] [2021-11-09 09:39:07,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:39:07,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:39:07,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:07,750 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:39:07,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:07,758 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:39:07,792 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 09:39:07,792 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 09:39:07,792 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 09:39:07,792 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 09:39:07,792 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-09 09:39:07,792 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:07,793 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 09:39:07,793 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 09:39:07,793 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration6_Loop [2021-11-09 09:39:07,793 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 09:39:07,793 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 09:39:07,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:07,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:07,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:07,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:07,856 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 09:39:07,856 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-09 09:39:07,857 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:07,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:07,860 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:07,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-11-09 09:39:07,889 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:39:07,889 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:39:07,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:07,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:07,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:07,968 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:07,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:07,969 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:07,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:07,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-11-09 09:39:07,974 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-09 09:39:07,974 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:39:08,064 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-09 09:39:08,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:08,066 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 09:39:08,066 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 09:39:08,066 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 09:39:08,066 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 09:39:08,066 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-09 09:39:08,066 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:08,066 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 09:39:08,066 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 09:39:08,066 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration6_Loop [2021-11-09 09:39:08,066 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 09:39:08,066 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 09:39:08,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:08,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:08,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:08,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:08,133 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 09:39:08,133 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-09 09:39:08,134 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:08,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:08,134 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:08,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-11-09 09:39:08,139 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 09:39:08,146 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:39:08,146 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 09:39:08,146 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:39:08,146 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 09:39:08,146 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:39:08,147 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 09:39:08,148 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 09:39:08,154 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-09 09:39:08,172 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-11-09 09:39:08,172 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-09 09:39:08,172 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:08,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:08,176 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:08,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-11-09 09:39:08,177 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-09 09:39:08,177 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-09 09:39:08,177 INFO L513 LassoAnalysis]: Proved termination. [2021-11-09 09:39:08,177 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-11-09 09:39:08,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:08,196 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-09 09:39:08,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:08,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:39:08,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 09:39:08,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:39:08,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:39:08,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 09:39:08,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:39:08,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:39:08,277 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-09 09:39:08,277 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 75 states and 111 transitions. cyclomatic complexity: 48 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:39:08,307 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 75 states and 111 transitions. cyclomatic complexity: 48. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 112 states and 173 transitions. Complement of second has 7 states. [2021-11-09 09:39:08,307 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 [2021-11-09 09:39:08,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:39:08,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2021-11-09 09:39:08,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 11 letters. Loop has 4 letters. [2021-11-09 09:39:08,308 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:39:08,309 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-09 09:39:08,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:08,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:39:08,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 09:39:08,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:39:08,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:39:08,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 09:39:08,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:39:08,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:39:08,393 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-09 09:39:08,393 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 75 states and 111 transitions. cyclomatic complexity: 48 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:39:08,429 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 75 states and 111 transitions. cyclomatic complexity: 48. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 107 states and 160 transitions. Complement of second has 7 states. [2021-11-09 09:39:08,432 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 [2021-11-09 09:39:08,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:39:08,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-11-09 09:39:08,433 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 4 letters. [2021-11-09 09:39:08,433 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:39:08,433 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-09 09:39:08,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:08,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:39:08,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 09:39:08,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:39:08,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:39:08,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 09:39:08,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:39:08,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:39:08,517 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-09 09:39:08,517 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 75 states and 111 transitions. cyclomatic complexity: 48 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:39:08,546 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 75 states and 111 transitions. cyclomatic complexity: 48. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 128 states and 203 transitions. Complement of second has 8 states. [2021-11-09 09:39:08,549 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 [2021-11-09 09:39:08,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:39:08,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2021-11-09 09:39:08,550 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 11 letters. Loop has 4 letters. [2021-11-09 09:39:08,550 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:39:08,550 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 15 letters. Loop has 4 letters. [2021-11-09 09:39:08,551 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:39:08,551 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 11 letters. Loop has 8 letters. [2021-11-09 09:39:08,552 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:39:08,552 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 128 states and 203 transitions. [2021-11-09 09:39:08,555 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 22 [2021-11-09 09:39:08,556 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 128 states to 97 states and 147 transitions. [2021-11-09 09:39:08,557 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2021-11-09 09:39:08,557 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2021-11-09 09:39:08,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 97 states and 147 transitions. [2021-11-09 09:39:08,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-09 09:39:08,557 INFO L681 BuchiCegarLoop]: Abstraction has 97 states and 147 transitions. [2021-11-09 09:39:08,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states and 147 transitions. [2021-11-09 09:39:08,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 66. [2021-11-09 09:39:08,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 66 states have (on average 1.5151515151515151) internal successors, (100), 65 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:39:08,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 100 transitions. [2021-11-09 09:39:08,564 INFO L704 BuchiCegarLoop]: Abstraction has 66 states and 100 transitions. [2021-11-09 09:39:08,564 INFO L587 BuchiCegarLoop]: Abstraction has 66 states and 100 transitions. [2021-11-09 09:39:08,564 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-11-09 09:39:08,564 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 100 transitions. [2021-11-09 09:39:08,565 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2021-11-09 09:39:08,565 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:39:08,565 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:39:08,565 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2021-11-09 09:39:08,566 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2021-11-09 09:39:08,566 INFO L791 eck$LassoCheckResult]: Stem: 1256#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 1257#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 1281#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 1267#L26 assume !(main_~x~0 < main_~y~0);main_~y~0 := main_~y~0 - 1; 1268#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 1283#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 1262#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 1263#L33 [2021-11-09 09:39:08,566 INFO L793 eck$LassoCheckResult]: Loop: 1263#L33 assume main_~x~0 < main_~y~0;main_~x~0 := main_~x~0 - 1; 1265#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 1254#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 1255#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 1266#L26 assume main_~x~0 < main_~y~0;main_~y~0 := main_~x~0 - 1; 1258#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 1259#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 1316#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 1263#L33 [2021-11-09 09:39:08,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:08,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1365800207, now seen corresponding path program 1 times [2021-11-09 09:39:08,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:39:08,567 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303000086] [2021-11-09 09:39:08,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:39:08,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:39:08,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:08,572 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:39:08,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:08,576 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:39:08,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:08,577 INFO L85 PathProgramCache]: Analyzing trace with hash -920272584, now seen corresponding path program 1 times [2021-11-09 09:39:08,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:39:08,577 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717844405] [2021-11-09 09:39:08,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:39:08,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:39:08,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:08,582 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:39:08,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:08,587 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:39:08,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:08,587 INFO L85 PathProgramCache]: Analyzing trace with hash -725918680, now seen corresponding path program 1 times [2021-11-09 09:39:08,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:39:08,587 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6578691] [2021-11-09 09:39:08,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:39:08,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:39:08,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:08,600 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:39:08,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:08,605 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:39:08,689 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 09:39:08,690 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 09:39:08,690 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 09:39:08,690 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 09:39:08,690 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-09 09:39:08,690 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:08,690 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 09:39:08,690 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 09:39:08,690 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration7_Loop [2021-11-09 09:39:08,690 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 09:39:08,690 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 09:39:08,691 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:08,695 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:08,697 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:08,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:08,758 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 09:39:08,758 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-09 09:39:08,758 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:08,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:08,759 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:08,761 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:39:08,761 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:39:08,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-11-09 09:39:08,783 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-09 09:39:08,783 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=-1} Honda state: {ULTIMATE.start_main_#t~nondet2=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-09 09:39:08,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:08,805 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:08,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:08,806 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:08,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-11-09 09:39:08,807 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:39:08,807 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:39:08,819 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-09 09:39:08,819 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_13=1} Honda state: {v_rep~unnamed0~0~true_13=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-09 09:39:08,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-11-09 09:39:08,838 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:08,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:08,839 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:08,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-11-09 09:39:08,840 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:39:08,840 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:39:08,852 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-09 09:39:08,853 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_13=0} Honda state: {v_rep~unnamed0~0~false_13=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-09 09:39:08,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:08,871 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:08,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:08,872 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:08,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-11-09 09:39:08,874 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:39:08,874 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:39:08,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-11-09 09:39:08,906 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:08,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:08,907 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:08,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-11-09 09:39:08,910 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-09 09:39:08,910 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:39:09,060 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-09 09:39:09,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:09,062 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 09:39:09,063 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 09:39:09,063 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 09:39:09,063 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 09:39:09,063 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-09 09:39:09,063 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:09,063 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 09:39:09,063 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 09:39:09,063 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration7_Loop [2021-11-09 09:39:09,063 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 09:39:09,063 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 09:39:09,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:09,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:09,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:09,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:09,123 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 09:39:09,123 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-09 09:39:09,123 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:09,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:09,124 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:09,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-11-09 09:39:09,133 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 09:39:09,140 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:39:09,140 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 09:39:09,140 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:39:09,140 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-11-09 09:39:09,140 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:39:09,141 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-09 09:39:09,141 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 09:39:09,144 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 09:39:09,163 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2021-11-09 09:39:09,164 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:09,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:09,164 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:09,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-11-09 09:39:09,167 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 09:39:09,174 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:39:09,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:39:09,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 09:39:09,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:39:09,177 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 09:39:09,177 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 09:39:09,198 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 09:39:09,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-11-09 09:39:09,217 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:09,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:09,220 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:09,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-11-09 09:39:09,225 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 09:39:09,232 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:39:09,232 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:39:09,232 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 09:39:09,232 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:39:09,234 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 09:39:09,234 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 09:39:09,242 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 09:39:09,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2021-11-09 09:39:09,261 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:09,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:09,261 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:09,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-11-09 09:39:09,263 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 09:39:09,273 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:39:09,273 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 09:39:09,273 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:39:09,273 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 09:39:09,273 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:39:09,275 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 09:39:09,275 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 09:39:09,300 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-09 09:39:09,313 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-11-09 09:39:09,313 INFO L444 ModelExtractionUtils]: 4 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-09 09:39:09,313 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:09,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:09,314 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:09,320 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-09 09:39:09,321 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-09 09:39:09,321 INFO L513 LassoAnalysis]: Proved termination. [2021-11-09 09:39:09,321 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-11-09 09:39:09,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-11-09 09:39:09,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:09,354 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-09 09:39:09,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:09,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:39:09,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 09:39:09,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:39:09,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:39:09,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-09 09:39:09,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:39:09,457 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:39:09,458 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-11-09 09:39:09,460 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 66 states and 100 transitions. cyclomatic complexity: 43 Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:39:09,547 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 66 states and 100 transitions. cyclomatic complexity: 43. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 246 states and 366 transitions. Complement of second has 13 states. [2021-11-09 09:39:09,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2021-11-09 09:39:09,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:39:09,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 30 transitions. [2021-11-09 09:39:09,548 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 30 transitions. Stem has 7 letters. Loop has 8 letters. [2021-11-09 09:39:09,550 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:39:09,550 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 30 transitions. Stem has 15 letters. Loop has 8 letters. [2021-11-09 09:39:09,550 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:39:09,550 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 30 transitions. Stem has 7 letters. Loop has 16 letters. [2021-11-09 09:39:09,551 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:39:09,551 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 246 states and 366 transitions. [2021-11-09 09:39:09,557 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 26 [2021-11-09 09:39:09,566 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 246 states to 208 states and 314 transitions. [2021-11-09 09:39:09,566 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2021-11-09 09:39:09,567 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 47 [2021-11-09 09:39:09,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 208 states and 314 transitions. [2021-11-09 09:39:09,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-09 09:39:09,567 INFO L681 BuchiCegarLoop]: Abstraction has 208 states and 314 transitions. [2021-11-09 09:39:09,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states and 314 transitions. [2021-11-09 09:39:09,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 188. [2021-11-09 09:39:09,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 188 states have (on average 1.5265957446808511) internal successors, (287), 187 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:39:09,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 287 transitions. [2021-11-09 09:39:09,589 INFO L704 BuchiCegarLoop]: Abstraction has 188 states and 287 transitions. [2021-11-09 09:39:09,590 INFO L587 BuchiCegarLoop]: Abstraction has 188 states and 287 transitions. [2021-11-09 09:39:09,590 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-11-09 09:39:09,590 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 188 states and 287 transitions. [2021-11-09 09:39:09,591 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 26 [2021-11-09 09:39:09,591 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:39:09,592 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:39:09,596 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1] [2021-11-09 09:39:09,596 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2021-11-09 09:39:09,596 INFO L791 eck$LassoCheckResult]: Stem: 1650#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 1651#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 1699#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 1697#L33 assume !(main_~x~0 < main_~y~0);main_~x~0 := main_~y~0 - 1; 1688#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 1684#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 1685#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 1698#L26 assume main_~x~0 < main_~y~0;main_~y~0 := main_~x~0 - 1; 1678#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 1673#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 1674#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 1773#L33 [2021-11-09 09:39:09,596 INFO L793 eck$LassoCheckResult]: Loop: 1773#L33 assume main_~x~0 < main_~y~0;main_~x~0 := main_~x~0 - 1; 1739#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 1740#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 1719#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 1721#L26 assume main_~x~0 < main_~y~0;main_~y~0 := main_~x~0 - 1; 1774#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 1702#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 1703#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 1773#L33 [2021-11-09 09:39:09,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:09,597 INFO L85 PathProgramCache]: Analyzing trace with hash -369493663, now seen corresponding path program 3 times [2021-11-09 09:39:09,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:39:09,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029240161] [2021-11-09 09:39:09,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:39:09,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:39:09,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:09,619 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:39:09,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:09,624 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:39:09,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:09,625 INFO L85 PathProgramCache]: Analyzing trace with hash -920272584, now seen corresponding path program 2 times [2021-11-09 09:39:09,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:39:09,625 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479818934] [2021-11-09 09:39:09,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:39:09,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:39:09,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:09,641 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:39:09,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:09,652 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:39:09,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:09,653 INFO L85 PathProgramCache]: Analyzing trace with hash -742368616, now seen corresponding path program 2 times [2021-11-09 09:39:09,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:39:09,653 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570184656] [2021-11-09 09:39:09,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:39:09,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:39:09,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:09,660 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:39:09,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:09,678 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:39:09,749 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 09:39:09,749 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 09:39:09,750 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 09:39:09,750 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 09:39:09,750 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-09 09:39:09,750 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:09,750 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 09:39:09,750 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 09:39:09,750 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration8_Loop [2021-11-09 09:39:09,750 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 09:39:09,751 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 09:39:09,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:09,755 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:09,766 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:09,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:09,822 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 09:39:09,822 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-09 09:39:09,822 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:09,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:09,828 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:09,831 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:39:09,831 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:39:09,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-11-09 09:39:09,860 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-09 09:39:09,860 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_15=1} Honda state: {v_rep~unnamed0~0~true_15=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-09 09:39:09,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:09,892 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:09,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:09,895 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:09,939 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:39:09,939 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:39:09,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-11-09 09:39:09,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:09,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:09,998 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:09,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:09,999 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:10,005 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-09 09:39:10,005 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:39:10,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:10,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-11-09 09:39:10,222 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-09 09:39:10,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:10,224 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 09:39:10,224 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 09:39:10,224 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 09:39:10,224 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 09:39:10,224 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-09 09:39:10,224 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:10,224 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 09:39:10,224 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 09:39:10,224 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration8_Loop [2021-11-09 09:39:10,224 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 09:39:10,225 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 09:39:10,225 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:10,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:10,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:10,248 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:10,310 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 09:39:10,310 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-09 09:39:10,312 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:10,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:10,312 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:10,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-11-09 09:39:10,314 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 09:39:10,321 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:39:10,321 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:39:10,321 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 09:39:10,322 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:39:10,323 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 09:39:10,323 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 09:39:10,348 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 09:39:10,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:10,374 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:10,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:10,375 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:10,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-11-09 09:39:10,376 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 09:39:10,383 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:39:10,383 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 09:39:10,383 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:39:10,383 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 09:39:10,383 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:39:10,385 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 09:39:10,385 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 09:39:10,402 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-09 09:39:10,405 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-09 09:39:10,405 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-09 09:39:10,405 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:10,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:10,406 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:10,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-11-09 09:39:10,407 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-09 09:39:10,407 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-09 09:39:10,407 INFO L513 LassoAnalysis]: Proved termination. [2021-11-09 09:39:10,407 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-11-09 09:39:10,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:10,427 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-09 09:39:10,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:10,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:39:10,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 09:39:10,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:39:10,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:39:10,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-09 09:39:10,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:39:10,545 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:39:10,545 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-11-09 09:39:10,546 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 188 states and 287 transitions. cyclomatic complexity: 124 Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 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) [2021-11-09 09:39:10,631 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 188 states and 287 transitions. cyclomatic complexity: 124. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 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) Result 330 states and 503 transitions. Complement of second has 13 states. [2021-11-09 09:39:10,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2021-11-09 09:39:10,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 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) [2021-11-09 09:39:10,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 30 transitions. [2021-11-09 09:39:10,632 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 30 transitions. Stem has 11 letters. Loop has 8 letters. [2021-11-09 09:39:10,633 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:39:10,633 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-09 09:39:10,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:10,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:39:10,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 09:39:10,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:39:10,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:39:10,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-09 09:39:10,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:39:10,738 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:39:10,739 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 4 loop predicates [2021-11-09 09:39:10,739 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 188 states and 287 transitions. cyclomatic complexity: 124 Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 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) [2021-11-09 09:39:10,825 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 188 states and 287 transitions. cyclomatic complexity: 124. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 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) Result 326 states and 483 transitions. Complement of second has 15 states. [2021-11-09 09:39:10,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2021-11-09 09:39:10,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 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) [2021-11-09 09:39:10,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 25 transitions. [2021-11-09 09:39:10,827 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 25 transitions. Stem has 11 letters. Loop has 8 letters. [2021-11-09 09:39:10,827 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:39:10,827 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-09 09:39:10,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:10,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:39:10,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 09:39:10,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:39:10,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:39:10,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-09 09:39:10,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:39:10,935 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:39:10,936 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-11-09 09:39:10,936 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 188 states and 287 transitions. cyclomatic complexity: 124 Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 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) [2021-11-09 09:39:11,017 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 188 states and 287 transitions. cyclomatic complexity: 124. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 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) Result 525 states and 786 transitions. Complement of second has 23 states. [2021-11-09 09:39:11,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2021-11-09 09:39:11,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 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) [2021-11-09 09:39:11,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 34 transitions. [2021-11-09 09:39:11,018 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 34 transitions. Stem has 11 letters. Loop has 8 letters. [2021-11-09 09:39:11,018 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:39:11,018 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 34 transitions. Stem has 19 letters. Loop has 8 letters. [2021-11-09 09:39:11,019 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:39:11,019 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 34 transitions. Stem has 11 letters. Loop has 16 letters. [2021-11-09 09:39:11,019 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:39:11,019 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 525 states and 786 transitions. [2021-11-09 09:39:11,026 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 86 [2021-11-09 09:39:11,029 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 525 states to 342 states and 512 transitions. [2021-11-09 09:39:11,030 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2021-11-09 09:39:11,030 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 73 [2021-11-09 09:39:11,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 342 states and 512 transitions. [2021-11-09 09:39:11,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-09 09:39:11,031 INFO L681 BuchiCegarLoop]: Abstraction has 342 states and 512 transitions. [2021-11-09 09:39:11,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states and 512 transitions. [2021-11-09 09:39:11,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 205. [2021-11-09 09:39:11,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 205 states have (on average 1.5463414634146342) internal successors, (317), 204 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:39:11,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 317 transitions. [2021-11-09 09:39:11,055 INFO L704 BuchiCegarLoop]: Abstraction has 205 states and 317 transitions. [2021-11-09 09:39:11,055 INFO L587 BuchiCegarLoop]: Abstraction has 205 states and 317 transitions. [2021-11-09 09:39:11,055 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-11-09 09:39:11,055 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 205 states and 317 transitions. [2021-11-09 09:39:11,056 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 66 [2021-11-09 09:39:11,057 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:39:11,057 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:39:11,057 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2021-11-09 09:39:11,057 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2021-11-09 09:39:11,057 INFO L791 eck$LassoCheckResult]: Stem: 3284#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 3285#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 3327#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 3328#L26 assume !(main_~x~0 < main_~y~0);main_~y~0 := main_~y~0 - 1; 3340#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 3338#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 3291#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 3292#L33 [2021-11-09 09:39:11,057 INFO L793 eck$LassoCheckResult]: Loop: 3292#L33 assume !(main_~x~0 < main_~y~0);main_~x~0 := main_~y~0 - 1; 3423#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 3424#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 3443#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 3418#L26 assume main_~x~0 < main_~y~0;main_~y~0 := main_~x~0 - 1; 3442#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 3441#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 3417#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 3292#L33 [2021-11-09 09:39:11,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:11,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1365800207, now seen corresponding path program 2 times [2021-11-09 09:39:11,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:39:11,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239549830] [2021-11-09 09:39:11,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:39:11,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:39:11,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:11,069 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:39:11,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:11,074 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:39:11,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:11,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1729619210, now seen corresponding path program 1 times [2021-11-09 09:39:11,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:39:11,076 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374919780] [2021-11-09 09:39:11,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:39:11,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:39:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:11,086 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:39:11,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:11,095 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:39:11,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:11,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1535265306, now seen corresponding path program 1 times [2021-11-09 09:39:11,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:39:11,099 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191282619] [2021-11-09 09:39:11,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:39:11,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:39:11,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:11,112 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:39:11,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:11,126 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:39:11,188 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 09:39:11,189 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 09:39:11,189 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 09:39:11,189 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 09:39:11,189 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-09 09:39:11,189 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:11,189 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 09:39:11,189 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 09:39:11,189 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration9_Loop [2021-11-09 09:39:11,189 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 09:39:11,189 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 09:39:11,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:11,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:11,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:11,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:11,259 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 09:39:11,259 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-09 09:39:11,259 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:11,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:11,261 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:11,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-11-09 09:39:11,262 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:39:11,262 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:39:11,283 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-09 09:39:11,283 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_17=1} Honda state: {v_rep~unnamed0~0~true_17=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-09 09:39:11,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:11,317 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:11,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:11,318 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:11,319 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:39:11,319 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:39:11,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-11-09 09:39:11,347 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-09 09:39:11,347 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=-1} Honda state: {ULTIMATE.start_main_#t~nondet2=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-09 09:39:11,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:11,366 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:11,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:11,366 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:11,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-11-09 09:39:11,368 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:39:11,368 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:39:11,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2021-11-09 09:39:11,395 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:11,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:11,396 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:11,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-11-09 09:39:11,397 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-09 09:39:11,397 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:39:11,494 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-09 09:39:11,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2021-11-09 09:39:11,496 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 09:39:11,496 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 09:39:11,496 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 09:39:11,496 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 09:39:11,496 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-09 09:39:11,496 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:11,496 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 09:39:11,496 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 09:39:11,496 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration9_Loop [2021-11-09 09:39:11,496 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 09:39:11,496 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 09:39:11,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:11,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:11,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:11,510 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:11,571 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 09:39:11,571 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-09 09:39:11,571 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:11,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:11,572 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:11,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-11-09 09:39:11,574 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 09:39:11,581 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:39:11,581 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:39:11,581 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 09:39:11,581 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:39:11,583 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 09:39:11,583 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 09:39:11,586 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 09:39:11,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:11,605 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:11,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:11,606 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:11,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-11-09 09:39:11,607 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 09:39:11,615 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:39:11,615 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 09:39:11,615 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:39:11,615 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-11-09 09:39:11,615 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:39:11,616 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-09 09:39:11,616 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 09:39:11,617 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 09:39:11,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:11,636 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:11,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:11,637 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:11,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-11-09 09:39:11,638 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 09:39:11,645 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:39:11,646 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 09:39:11,646 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:39:11,646 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 09:39:11,646 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:39:11,647 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 09:39:11,647 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 09:39:11,650 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-09 09:39:11,652 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-11-09 09:39:11,652 INFO L444 ModelExtractionUtils]: 4 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-09 09:39:11,652 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:11,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:11,653 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:11,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-11-09 09:39:11,654 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-09 09:39:11,654 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-09 09:39:11,654 INFO L513 LassoAnalysis]: Proved termination. [2021-11-09 09:39:11,654 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-11-09 09:39:11,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:11,675 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-09 09:39:11,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:11,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:39:11,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 09:39:11,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:39:11,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:39:11,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-09 09:39:11,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:39:11,774 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:39:11,774 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-11-09 09:39:11,775 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 205 states and 317 transitions. cyclomatic complexity: 133 Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:39:11,845 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 205 states and 317 transitions. cyclomatic complexity: 133. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 490 states and 759 transitions. Complement of second has 12 states. [2021-11-09 09:39:11,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2021-11-09 09:39:11,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:39:11,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 30 transitions. [2021-11-09 09:39:11,846 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 30 transitions. Stem has 7 letters. Loop has 8 letters. [2021-11-09 09:39:11,846 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:39:11,846 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 30 transitions. Stem has 15 letters. Loop has 8 letters. [2021-11-09 09:39:11,847 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:39:11,847 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 30 transitions. Stem has 7 letters. Loop has 16 letters. [2021-11-09 09:39:11,847 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:39:11,847 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 490 states and 759 transitions. [2021-11-09 09:39:11,853 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-11-09 09:39:11,856 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 490 states to 285 states and 426 transitions. [2021-11-09 09:39:11,856 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2021-11-09 09:39:11,856 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-11-09 09:39:11,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 285 states and 426 transitions. [2021-11-09 09:39:11,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-09 09:39:11,857 INFO L681 BuchiCegarLoop]: Abstraction has 285 states and 426 transitions. [2021-11-09 09:39:11,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states and 426 transitions. [2021-11-09 09:39:11,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 193. [2021-11-09 09:39:11,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 193 states have (on average 1.528497409326425) internal successors, (295), 192 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:39:11,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 295 transitions. [2021-11-09 09:39:11,864 INFO L704 BuchiCegarLoop]: Abstraction has 193 states and 295 transitions. [2021-11-09 09:39:11,865 INFO L587 BuchiCegarLoop]: Abstraction has 193 states and 295 transitions. [2021-11-09 09:39:11,865 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-11-09 09:39:11,865 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 193 states and 295 transitions. [2021-11-09 09:39:11,903 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-11-09 09:39:11,903 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:39:11,903 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:39:11,905 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 3, 2, 2, 1, 1, 1, 1] [2021-11-09 09:39:11,905 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-09 09:39:11,905 INFO L791 eck$LassoCheckResult]: Stem: 4060#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 4061#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 4084#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 4088#L26 assume !(main_~x~0 < main_~y~0);main_~y~0 := main_~y~0 - 1; 4085#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 4086#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 4081#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 4082#L33 assume main_~x~0 < main_~y~0;main_~x~0 := main_~x~0 - 1; 4134#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 4133#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 4128#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 4130#L26 assume !(main_~x~0 < main_~y~0);main_~y~0 := main_~y~0 - 1; 4141#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 4140#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 4137#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 4067#L26 [2021-11-09 09:39:11,905 INFO L793 eck$LassoCheckResult]: Loop: 4067#L26 assume !(main_~x~0 < main_~y~0);main_~y~0 := main_~y~0 - 1; 4062#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 4063#L25-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 4066#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 4067#L26 [2021-11-09 09:39:11,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:11,906 INFO L85 PathProgramCache]: Analyzing trace with hash -725859107, now seen corresponding path program 1 times [2021-11-09 09:39:11,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:39:11,906 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738522256] [2021-11-09 09:39:11,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:39:11,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:39:11,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:11,938 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:39:11,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:11,944 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:39:11,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:11,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1479302, now seen corresponding path program 3 times [2021-11-09 09:39:11,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:39:11,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810511302] [2021-11-09 09:39:11,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:39:11,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:39:11,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:11,949 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:39:11,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:11,951 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:39:11,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:11,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:11,961 INFO L85 PathProgramCache]: Analyzing trace with hash -517142174, now seen corresponding path program 2 times [2021-11-09 09:39:11,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:39:11,961 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651684026] [2021-11-09 09:39:11,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:39:11,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:39:11,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:11,971 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:39:11,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:39:11,993 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:39:12,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:12,026 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 09:39:12,026 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 09:39:12,026 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 09:39:12,027 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 09:39:12,027 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-09 09:39:12,027 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:12,027 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 09:39:12,027 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 09:39:12,027 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration10_Loop [2021-11-09 09:39:12,027 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 09:39:12,027 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 09:39:12,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:12,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:12,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:12,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:12,083 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 09:39:12,083 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-09 09:39:12,084 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:12,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:12,084 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:12,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-11-09 09:39:12,086 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:39:12,086 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:39:12,099 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-09 09:39:12,099 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_19=0} Honda state: {v_rep~unnamed0~0~false_19=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-09 09:39:12,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:12,118 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:12,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:12,119 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:12,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-11-09 09:39:12,120 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:39:12,120 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:39:12,133 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-09 09:39:12,133 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_19=1} Honda state: {v_rep~unnamed0~0~true_19=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-09 09:39:12,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:12,153 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:12,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:12,154 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:12,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-11-09 09:39:12,156 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:39:12,156 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:39:12,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:12,187 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:12,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:12,187 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:12,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-11-09 09:39:12,188 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-09 09:39:12,189 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:39:12,287 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-09 09:39:12,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:12,290 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 09:39:12,290 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 09:39:12,290 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 09:39:12,290 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 09:39:12,290 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-09 09:39:12,290 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:12,290 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 09:39:12,290 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 09:39:12,290 INFO L133 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum.c_Iteration10_Loop [2021-11-09 09:39:12,290 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 09:39:12,290 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 09:39:12,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:12,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:12,304 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:12,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:39:12,350 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 09:39:12,351 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-09 09:39:12,351 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:12,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:12,351 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:12,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-11-09 09:39:12,353 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 09:39:12,360 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:39:12,360 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:39:12,360 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 09:39:12,360 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:39:12,377 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 09:39:12,377 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 09:39:12,392 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 09:39:12,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:12,428 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:12,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:12,429 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:12,433 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 09:39:12,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-11-09 09:39:12,441 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:39:12,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:39:12,441 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 09:39:12,441 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:39:12,442 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-09 09:39:12,442 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-09 09:39:12,464 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 09:39:12,485 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2021-11-09 09:39:12,485 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:12,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:12,486 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:12,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-11-09 09:39:12,487 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-09 09:39:12,494 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:39:12,495 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 09:39:12,495 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:39:12,495 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 09:39:12,495 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:39:12,496 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 09:39:12,496 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 09:39:12,498 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-09 09:39:12,500 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-11-09 09:39:12,500 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-09 09:39:12,500 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:39:12,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:39:12,506 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:39:12,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-11-09 09:39:12,508 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-09 09:39:12,508 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-09 09:39:12,508 INFO L513 LassoAnalysis]: Proved termination. [2021-11-09 09:39:12,508 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-11-09 09:39:12,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0 [2021-11-09 09:39:12,529 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-09 09:39:12,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:12,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:39:12,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 09:39:12,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:39:12,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:39:12,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 09:39:12,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:39:12,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:39:12,622 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-09 09:39:12,622 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 193 states and 295 transitions. cyclomatic complexity: 126 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:39:12,659 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 193 states and 295 transitions. cyclomatic complexity: 126. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 302 states and 452 transitions. Complement of second has 7 states. [2021-11-09 09:39:12,659 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 [2021-11-09 09:39:12,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:39:12,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2021-11-09 09:39:12,660 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 15 letters. Loop has 4 letters. [2021-11-09 09:39:12,660 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:39:12,660 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-09 09:39:12,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:12,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:39:12,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 09:39:12,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:39:12,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:39:12,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 09:39:12,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:39:12,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:39:12,742 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-09 09:39:12,742 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 193 states and 295 transitions. cyclomatic complexity: 126 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:39:12,769 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 193 states and 295 transitions. cyclomatic complexity: 126. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 313 states and 443 transitions. Complement of second has 7 states. [2021-11-09 09:39:12,780 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 [2021-11-09 09:39:12,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:39:12,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-11-09 09:39:12,781 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 15 letters. Loop has 4 letters. [2021-11-09 09:39:12,781 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:39:12,781 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-09 09:39:12,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:39:12,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:39:12,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 09:39:12,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:39:12,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:39:12,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 09:39:12,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:39:12,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:39:12,894 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-09 09:39:12,894 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 193 states and 295 transitions. cyclomatic complexity: 126 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:39:12,918 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 193 states and 295 transitions. cyclomatic complexity: 126. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 423 states and 703 transitions. Complement of second has 8 states. [2021-11-09 09:39:12,918 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 [2021-11-09 09:39:12,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:39:12,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2021-11-09 09:39:12,919 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 15 letters. Loop has 4 letters. [2021-11-09 09:39:12,919 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:39:12,919 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 19 letters. Loop has 4 letters. [2021-11-09 09:39:12,919 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:39:12,919 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 15 letters. Loop has 8 letters. [2021-11-09 09:39:12,920 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:39:12,920 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 423 states and 703 transitions. [2021-11-09 09:39:12,924 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-09 09:39:12,925 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 423 states to 0 states and 0 transitions. [2021-11-09 09:39:12,925 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-09 09:39:12,925 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-09 09:39:12,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-09 09:39:12,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:39:12,925 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 09:39:12,925 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 09:39:12,925 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 09:39:12,925 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-11-09 09:39:12,925 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-09 09:39:12,926 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-09 09:39:12,926 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-09 09:39:12,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 09:39:12 BoogieIcfgContainer [2021-11-09 09:39:12,931 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-09 09:39:12,932 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 09:39:12,932 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 09:39:12,932 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 09:39:12,933 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:39:02" (3/4) ... [2021-11-09 09:39:12,936 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-09 09:39:12,936 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 09:39:12,937 INFO L168 Benchmark]: Toolchain (without parser) took 11029.69 ms. Allocated memory was 130.0 MB in the beginning and 169.9 MB in the end (delta: 39.8 MB). Free memory was 95.8 MB in the beginning and 81.9 MB in the end (delta: 13.9 MB). Peak memory consumption was 52.5 MB. Max. memory is 16.1 GB. [2021-11-09 09:39:12,938 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 88.1 MB. Free memory is still 41.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:39:12,938 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.22 ms. Allocated memory is still 130.0 MB. Free memory was 95.6 MB in the beginning and 105.9 MB in the end (delta: -10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-09 09:39:12,938 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.41 ms. Allocated memory is still 130.0 MB. Free memory was 105.9 MB in the beginning and 104.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:39:12,939 INFO L168 Benchmark]: Boogie Preprocessor took 19.35 ms. Allocated memory is still 130.0 MB. Free memory was 104.5 MB in the beginning and 103.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 09:39:12,939 INFO L168 Benchmark]: RCFGBuilder took 275.40 ms. Allocated memory is still 130.0 MB. Free memory was 103.4 MB in the beginning and 95.6 MB in the end (delta: 7.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-09 09:39:12,939 INFO L168 Benchmark]: BuchiAutomizer took 10357.26 ms. Allocated memory was 130.0 MB in the beginning and 169.9 MB in the end (delta: 39.8 MB). Free memory was 95.4 MB in the beginning and 81.9 MB in the end (delta: 13.5 MB). Peak memory consumption was 55.5 MB. Max. memory is 16.1 GB. [2021-11-09 09:39:12,939 INFO L168 Benchmark]: Witness Printer took 3.87 ms. Allocated memory is still 169.9 MB. Free memory is still 81.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:39:12,941 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 88.1 MB. Free memory is still 41.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 334.22 ms. Allocated memory is still 130.0 MB. Free memory was 95.6 MB in the beginning and 105.9 MB in the end (delta: -10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.41 ms. Allocated memory is still 130.0 MB. Free memory was 105.9 MB in the beginning and 104.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.35 ms. Allocated memory is still 130.0 MB. Free memory was 104.5 MB in the beginning and 103.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 275.40 ms. Allocated memory is still 130.0 MB. Free memory was 103.4 MB in the beginning and 95.6 MB in the end (delta: 7.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 10357.26 ms. Allocated memory was 130.0 MB in the beginning and 169.9 MB in the end (delta: 39.8 MB). Free memory was 95.4 MB in the beginning and 81.9 MB in the end (delta: 13.5 MB). Peak memory consumption was 55.5 MB. Max. memory is 16.1 GB. * Witness Printer took 3.87 ms. Allocated memory is still 169.9 MB. Free memory is still 81.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 10 terminating modules (0 trivial, 7 deterministic, 3 nondeterministic). One deterministic module has affine ranking function y and consists of 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 7 locations. One deterministic module has affine ranking function y and consists of 7 locations. One nondeterministic module has affine ranking function x and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 7 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.2s and 11 iterations. TraceHistogramMax:4. Analysis of lassos took 7.4s. Construction of modules took 0.2s. Büchi inclusion checks took 2.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 9. Automata minimization 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 316 StatesRemovedByMinimization, 9 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 205 states and ocurred in iteration 8. Nontrivial modules had stage [7, 0, 3, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/6 HoareTripleCheckerStatistics: 192 SDtfs, 248 SDslu, 117 SDs, 0 SdLazy, 319 SolverSat, 103 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT10 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax151 hnf99 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq151 hnf93 smp100 dnf100 smp100 tf107 neg100 sie117 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 93ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 15 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 10 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-09 09:39:12,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2021-11-09 09:39:13,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71456701-4d4c-4def-8786-59f627fa7d96/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE