./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/count_down-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/count_down-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY --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 99c02e26cc69c81635e61f874ccaf79837a3339fa533477441a437bf8690e003 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 08:38:10,409 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 08:38:10,411 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 08:38:10,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 08:38:10,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 08:38:10,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 08:38:10,460 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 08:38:10,463 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 08:38:10,467 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 08:38:10,468 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 08:38:10,470 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 08:38:10,472 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 08:38:10,473 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 08:38:10,475 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 08:38:10,477 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 08:38:10,479 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 08:38:10,481 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 08:38:10,482 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 08:38:10,485 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 08:38:10,489 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 08:38:10,492 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 08:38:10,499 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 08:38:10,501 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 08:38:10,503 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 08:38:10,512 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 08:38:10,517 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 08:38:10,518 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 08:38:10,519 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 08:38:10,521 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 08:38:10,523 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 08:38:10,525 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 08:38:10,527 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 08:38:10,528 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 08:38:10,532 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 08:38:10,534 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 08:38:10,535 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 08:38:10,536 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 08:38:10,536 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 08:38:10,537 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 08:38:10,541 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 08:38:10,542 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 08:38:10,544 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-07 08:38:10,604 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 08:38:10,604 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 08:38:10,605 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 08:38:10,606 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 08:38:10,607 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 08:38:10,608 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 08:38:10,608 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 08:38:10,608 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-07 08:38:10,609 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-07 08:38:10,609 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-07 08:38:10,610 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-07 08:38:10,611 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-07 08:38:10,611 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-07 08:38:10,611 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 08:38:10,612 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 08:38:10,612 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 08:38:10,612 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 08:38:10,613 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-07 08:38:10,613 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-07 08:38:10,613 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-07 08:38:10,614 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 08:38:10,614 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-07 08:38:10,614 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 08:38:10,614 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-07 08:38:10,615 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 08:38:10,615 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 08:38:10,617 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 08:38:10,618 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 08:38:10,618 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 08:38:10,619 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-07 08:38:10,620 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_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99c02e26cc69c81635e61f874ccaf79837a3339fa533477441a437bf8690e003 [2021-11-07 08:38:10,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 08:38:11,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 08:38:11,014 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 08:38:11,015 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 08:38:11,016 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 08:38:11,017 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/termination-memory-alloca/count_down-alloca-2.i [2021-11-07 08:38:11,140 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/data/198e85387/5984f06ba3444e31ba2b7266c2c00c58/FLAG6b95b3db7 [2021-11-07 08:38:11,756 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 08:38:11,757 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/sv-benchmarks/c/termination-memory-alloca/count_down-alloca-2.i [2021-11-07 08:38:11,773 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/data/198e85387/5984f06ba3444e31ba2b7266c2c00c58/FLAG6b95b3db7 [2021-11-07 08:38:12,038 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/data/198e85387/5984f06ba3444e31ba2b7266c2c00c58 [2021-11-07 08:38:12,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 08:38:12,045 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 08:38:12,060 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 08:38:12,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 08:38:12,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 08:38:12,067 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:38:12" (1/1) ... [2021-11-07 08:38:12,068 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d522bde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:12, skipping insertion in model container [2021-11-07 08:38:12,069 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:38:12" (1/1) ... [2021-11-07 08:38:12,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 08:38:12,136 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 08:38:12,514 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:38:12,525 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 08:38:12,569 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:38:12,607 INFO L208 MainTranslator]: Completed translation [2021-11-07 08:38:12,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:12 WrapperNode [2021-11-07 08:38:12,608 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 08:38:12,609 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 08:38:12,610 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 08:38:12,610 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 08:38:12,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:12" (1/1) ... [2021-11-07 08:38:12,654 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:12" (1/1) ... [2021-11-07 08:38:12,677 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 08:38:12,678 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 08:38:12,679 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 08:38:12,679 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 08:38:12,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:12" (1/1) ... [2021-11-07 08:38:12,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:12" (1/1) ... [2021-11-07 08:38:12,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:12" (1/1) ... [2021-11-07 08:38:12,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:12" (1/1) ... [2021-11-07 08:38:12,700 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:12" (1/1) ... [2021-11-07 08:38:12,704 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:12" (1/1) ... [2021-11-07 08:38:12,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:12" (1/1) ... [2021-11-07 08:38:12,709 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 08:38:12,710 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 08:38:12,710 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 08:38:12,711 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 08:38:12,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:12" (1/1) ... [2021-11-07 08:38:12,741 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:12,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:12,786 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:12,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-07 08:38:12,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 08:38:12,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 08:38:12,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 08:38:12,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 08:38:12,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 08:38:12,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 08:38:13,214 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 08:38:13,215 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-07 08:38:13,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:38:13 BoogieIcfgContainer [2021-11-07 08:38:13,217 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 08:38:13,218 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-07 08:38:13,219 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-07 08:38:13,223 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-07 08:38:13,224 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 08:38:13,224 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.11 08:38:12" (1/3) ... [2021-11-07 08:38:13,226 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d598482 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 08:38:13, skipping insertion in model container [2021-11-07 08:38:13,226 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 08:38:13,226 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:12" (2/3) ... [2021-11-07 08:38:13,227 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d598482 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 08:38:13, skipping insertion in model container [2021-11-07 08:38:13,227 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 08:38:13,227 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:38:13" (3/3) ... [2021-11-07 08:38:13,229 INFO L389 chiAutomizerObserver]: Analyzing ICFG count_down-alloca-2.i [2021-11-07 08:38:13,303 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-07 08:38:13,303 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-07 08:38:13,304 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-07 08:38:13,304 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-07 08:38:13,304 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-07 08:38:13,304 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-07 08:38:13,304 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-07 08:38:13,304 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-07 08:38:13,340 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 17 states have internal predecessors, (26), 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) [2021-11-07 08:38:13,379 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-11-07 08:38:13,380 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:38:13,380 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:38:13,388 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-11-07 08:38:13,389 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-07 08:38:13,389 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-07 08:38:13,389 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 17 states have internal predecessors, (26), 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) [2021-11-07 08:38:13,394 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-11-07 08:38:13,394 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:38:13,394 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:38:13,395 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-11-07 08:38:13,395 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-07 08:38:13,405 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~nondet2, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet5, main_#t~post4, main_#t~mem8, main_#t~post9, main_#t~mem7, main_#t~post6, main_~i~0, main_~j~0, main_~val~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 17#L551true assume !(main_~length~0 < 1); 12#L551-2true call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 11#L553true assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 16#L554-3true [2021-11-07 08:38:13,407 INFO L793 eck$LassoCheckResult]: Loop: 16#L554-3true assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet5;havoc main_#t~nondet5; 5#L556true assume main_~val~0 < 0;main_~val~0 := 0; 6#L556-2true call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 15#L554-2true main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 16#L554-3true [2021-11-07 08:38:13,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:38:13,422 INFO L85 PathProgramCache]: Analyzing trace with hash 28695753, now seen corresponding path program 1 times [2021-11-07 08:38:13,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:38:13,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812123573] [2021-11-07 08:38:13,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:38:13,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:38:13,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:38:13,573 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:38:13,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:38:13,617 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:38:13,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:38:13,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1603878, now seen corresponding path program 1 times [2021-11-07 08:38:13,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:38:13,646 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129097515] [2021-11-07 08:38:13,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:38:13,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:38:13,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:38:13,668 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:38:13,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:38:13,702 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:38:13,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:38:13,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1182970350, now seen corresponding path program 1 times [2021-11-07 08:38:13,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:38:13,711 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746808696] [2021-11-07 08:38:13,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:38:13,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:38:13,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:38:13,790 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:38:13,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:38:13,818 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:38:14,345 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:38:14,346 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:38:14,346 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:38:14,346 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:38:14,346 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-07 08:38:14,347 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:14,347 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:38:14,347 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:38:14,347 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_down-alloca-2.i_Iteration1_Lasso [2021-11-07 08:38:14,348 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:38:14,348 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:38:14,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:14,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:14,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:14,415 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:14,420 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:14,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:14,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:14,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:14,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:14,582 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:14,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:14,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:14,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:14,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:14,616 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:14,949 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:38:14,955 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-07 08:38:14,957 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:14,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:14,960 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:14,966 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 [2021-11-07 08:38:14,978 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:38:14,978 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:38:14,979 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:38:14,979 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:38:14,979 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:38:14,982 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:38:14,982 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:38:14,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-07 08:38:15,004 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:38:15,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-07 08:38:15,049 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:15,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:15,052 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:15,061 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 [2021-11-07 08:38:15,073 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:38:15,073 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:38:15,073 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:38:15,073 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:38:15,073 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:38:15,074 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:38:15,075 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:38:15,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-07 08:38:15,089 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:38:15,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-07 08:38:15,138 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:15,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:15,144 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:15,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-07 08:38:15,148 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 [2021-11-07 08:38:15,161 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:38:15,161 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:38:15,161 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:38:15,161 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:38:15,161 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:38:15,163 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:38:15,163 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:38:15,174 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:38:15,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-07 08:38:15,219 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:15,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:15,221 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:15,228 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 [2021-11-07 08:38:15,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:38:15,240 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:38:15,240 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:38:15,240 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:38:15,240 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:38:15,241 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:38:15,241 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:38:15,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-07 08:38:15,256 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:38:15,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-07 08:38:15,303 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:15,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:15,308 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:15,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-07 08:38:15,312 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 [2021-11-07 08:38:15,322 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:38:15,322 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:38:15,323 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:38:15,323 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:38:15,336 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 08:38:15,337 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 08:38:15,356 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:38:15,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-07 08:38:15,393 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:15,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:15,394 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:15,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-07 08:38:15,398 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 [2021-11-07 08:38:15,408 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:38:15,408 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:38:15,408 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:38:15,408 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:38:15,415 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 08:38:15,415 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 08:38:15,440 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:38:15,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-07 08:38:15,465 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:15,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:15,466 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:15,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-07 08:38:15,472 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 [2021-11-07 08:38:15,482 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:38:15,482 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:38:15,482 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:38:15,482 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:38:15,482 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:38:15,483 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:38:15,484 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:38:15,508 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:38:15,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-07 08:38:15,556 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:15,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:15,557 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:15,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-07 08:38:15,564 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 [2021-11-07 08:38:15,578 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:38:15,578 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:38:15,578 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:38:15,579 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:38:15,602 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 08:38:15,602 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 08:38:15,631 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-07 08:38:15,732 INFO L443 ModelExtractionUtils]: Simplification made 17 calls to the SMT solver. [2021-11-07 08:38:15,732 INFO L444 ModelExtractionUtils]: 4 out of 22 variables were initially zero. Simplification set additionally 15 variables to zero. [2021-11-07 08:38:15,735 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:15,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:15,741 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:15,758 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-07 08:38:15,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-07 08:38:15,777 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-07 08:38:15,777 INFO L513 LassoAnalysis]: Proved termination. [2021-11-07 08:38:15,778 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~length~0) = -1*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~length~0 Supporting invariants [] [2021-11-07 08:38:15,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-07 08:38:15,839 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2021-11-07 08:38:15,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:38:15,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:38:15,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 08:38:15,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:38:15,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:38:15,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 08:38:15,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:38:16,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:38:16,061 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 [2021-11-07 08:38:16,063 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 18 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 17 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:38:16,157 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 18 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 17 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 43 states and 60 transitions. Complement of second has 7 states. [2021-11-07 08:38:16,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-07 08:38:16,159 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 [2021-11-07 08:38:16,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:38:16,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 40 transitions. [2021-11-07 08:38:16,165 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 40 transitions. Stem has 5 letters. Loop has 4 letters. [2021-11-07 08:38:16,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:38:16,167 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 40 transitions. Stem has 9 letters. Loop has 4 letters. [2021-11-07 08:38:16,167 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:38:16,168 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 40 transitions. Stem has 5 letters. Loop has 8 letters. [2021-11-07 08:38:16,168 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:38:16,169 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 60 transitions. [2021-11-07 08:38:16,179 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-11-07 08:38:16,186 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 15 states and 20 transitions. [2021-11-07 08:38:16,188 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-11-07 08:38:16,188 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-11-07 08:38:16,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 20 transitions. [2021-11-07 08:38:16,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:38:16,194 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2021-11-07 08:38:16,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 20 transitions. [2021-11-07 08:38:16,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-11-07 08:38:16,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 14 states have internal predecessors, (20), 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) [2021-11-07 08:38:16,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2021-11-07 08:38:16,231 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2021-11-07 08:38:16,232 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2021-11-07 08:38:16,232 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-07 08:38:16,232 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2021-11-07 08:38:16,243 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-11-07 08:38:16,244 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:38:16,244 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:38:16,245 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:38:16,245 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-07 08:38:16,245 INFO L791 eck$LassoCheckResult]: Stem: 127#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 128#L-1 havoc main_#res;havoc main_#t~nondet2, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet5, main_#t~post4, main_#t~mem8, main_#t~post9, main_#t~mem7, main_#t~post6, main_~i~0, main_~j~0, main_~val~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 134#L551 assume !(main_~length~0 < 1); 138#L551-2 call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 136#L553 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 137#L554-3 assume !(main_~i~0 < main_~length~0); 135#L554-4 main_~j~0 := 0; 133#L561-3 [2021-11-07 08:38:16,245 INFO L793 eck$LassoCheckResult]: Loop: 133#L561-3 assume !!(main_~j~0 < main_~length~0); 140#L562-3 call main_#t~mem7 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 139#L562-1 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 132#L561-2 main_#t~post6 := main_~j~0;main_~j~0 := 1 + main_#t~post6;havoc main_#t~post6; 133#L561-3 [2021-11-07 08:38:16,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:38:16,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1806815512, now seen corresponding path program 1 times [2021-11-07 08:38:16,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:38:16,246 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646940446] [2021-11-07 08:38:16,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:38:16,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:38:16,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:38:16,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:38:16,318 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:38:16,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646940446] [2021-11-07 08:38:16,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646940446] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:38:16,319 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:38:16,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 08:38:16,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826224926] [2021-11-07 08:38:16,322 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-07 08:38:16,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:38:16,323 INFO L85 PathProgramCache]: Analyzing trace with hash 2252300, now seen corresponding path program 1 times [2021-11-07 08:38:16,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:38:16,323 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183271197] [2021-11-07 08:38:16,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:38:16,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:38:16,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:38:16,332 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:38:16,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:38:16,340 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:38:16,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:38:16,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 08:38:16,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 08:38:16,402 INFO L87 Difference]: Start difference. First operand 15 states and 20 transitions. cyclomatic complexity: 7 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) [2021-11-07 08:38:16,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:38:16,434 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2021-11-07 08:38:16,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 08:38:16,436 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2021-11-07 08:38:16,437 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-11-07 08:38:16,437 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 23 transitions. [2021-11-07 08:38:16,438 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-11-07 08:38:16,438 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-11-07 08:38:16,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2021-11-07 08:38:16,438 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:38:16,438 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-11-07 08:38:16,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2021-11-07 08:38:16,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 15. [2021-11-07 08:38:16,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 14 states have internal predecessors, (19), 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) [2021-11-07 08:38:16,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2021-11-07 08:38:16,441 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-11-07 08:38:16,441 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-11-07 08:38:16,441 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-07 08:38:16,441 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 19 transitions. [2021-11-07 08:38:16,442 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-11-07 08:38:16,442 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:38:16,442 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:38:16,443 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:38:16,443 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-07 08:38:16,443 INFO L791 eck$LassoCheckResult]: Stem: 167#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 168#L-1 havoc main_#res;havoc main_#t~nondet2, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet5, main_#t~post4, main_#t~mem8, main_#t~post9, main_#t~mem7, main_#t~post6, main_~i~0, main_~j~0, main_~val~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 174#L551 assume !(main_~length~0 < 1); 180#L551-2 call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 176#L553 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 177#L554-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet5;havoc main_#t~nondet5; 169#L556 assume !(main_~val~0 < 0); 170#L556-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 171#L554-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 181#L554-3 assume !(main_~i~0 < main_~length~0); 175#L554-4 main_~j~0 := 0; 173#L561-3 [2021-11-07 08:38:16,443 INFO L793 eck$LassoCheckResult]: Loop: 173#L561-3 assume !!(main_~j~0 < main_~length~0); 179#L562-3 call main_#t~mem7 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 178#L562-1 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 172#L561-2 main_#t~post6 := main_~j~0;main_~j~0 := 1 + main_#t~post6;havoc main_#t~post6; 173#L561-3 [2021-11-07 08:38:16,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:38:16,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1329979393, now seen corresponding path program 1 times [2021-11-07 08:38:16,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:38:16,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47328373] [2021-11-07 08:38:16,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:38:16,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:38:16,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:38:16,467 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:38:16,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:38:16,514 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:38:16,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:38:16,515 INFO L85 PathProgramCache]: Analyzing trace with hash 2252300, now seen corresponding path program 2 times [2021-11-07 08:38:16,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:38:16,515 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088179110] [2021-11-07 08:38:16,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:38:16,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:38:16,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:38:16,523 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:38:16,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:38:16,546 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:38:16,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:38:16,546 INFO L85 PathProgramCache]: Analyzing trace with hash -2035265782, now seen corresponding path program 1 times [2021-11-07 08:38:16,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:38:16,547 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686571590] [2021-11-07 08:38:16,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:38:16,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:38:16,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:38:16,580 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:38:16,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:38:16,602 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:38:16,951 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:38:16,951 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:38:16,951 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:38:16,951 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:38:16,951 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-07 08:38:16,951 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:16,951 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:38:16,951 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:38:16,952 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_down-alloca-2.i_Iteration3_Lasso [2021-11-07 08:38:16,952 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:38:16,952 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:38:16,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:16,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:16,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:16,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:16,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:16,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:16,976 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:17,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:17,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:17,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:17,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:17,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:17,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:17,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:17,463 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:38:17,463 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-07 08:38:17,463 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:17,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:17,472 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:17,484 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 [2021-11-07 08:38:17,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-07 08:38:17,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:38:17,501 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:38:17,501 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:38:17,501 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:38:17,501 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:38:17,504 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:38:17,504 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:38:17,514 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:38:17,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-07 08:38:17,557 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:17,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:17,560 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:17,568 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 [2021-11-07 08:38:17,579 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:38:17,579 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:38:17,580 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:38:17,580 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:38:17,580 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:38:17,581 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:38:17,581 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:38:17,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-07 08:38:17,596 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:38:17,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-07 08:38:17,642 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:17,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:17,644 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:17,653 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 [2021-11-07 08:38:17,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-07 08:38:17,664 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:38:17,665 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:38:17,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:38:17,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:38:17,665 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:38:17,666 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:38:17,666 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:38:17,684 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:38:17,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-07 08:38:17,731 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:17,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:17,732 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:17,739 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 [2021-11-07 08:38:17,751 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:38:17,751 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:38:17,751 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:38:17,751 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:38:17,754 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 08:38:17,754 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 08:38:17,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-07 08:38:17,772 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:38:17,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-07 08:38:17,819 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:17,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:17,821 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:17,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-07 08:38:17,824 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 [2021-11-07 08:38:17,835 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:38:17,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:38:17,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:38:17,835 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:38:17,838 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 08:38:17,838 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 08:38:17,863 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:38:17,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-07 08:38:17,901 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:17,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:17,902 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:17,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-07 08:38:17,903 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 [2021-11-07 08:38:17,912 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:38:17,913 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:38:17,913 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:38:17,913 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:38:17,917 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 08:38:17,917 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 08:38:17,928 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:38:17,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-07 08:38:17,975 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:17,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:17,980 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:17,989 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 [2021-11-07 08:38:18,001 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:38:18,001 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:38:18,002 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:38:18,002 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:38:18,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-07 08:38:18,008 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 08:38:18,009 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 08:38:18,021 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:38:18,048 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-11-07 08:38:18,048 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:18,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:18,049 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:18,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-11-07 08:38:18,054 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 [2021-11-07 08:38:18,063 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:38:18,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:38:18,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:38:18,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:38:18,072 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 08:38:18,072 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 08:38:18,100 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-07 08:38:18,144 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2021-11-07 08:38:18,144 INFO L444 ModelExtractionUtils]: 7 out of 25 variables were initially zero. Simplification set additionally 15 variables to zero. [2021-11-07 08:38:18,145 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:18,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:18,148 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:18,156 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-07 08:38:18,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-07 08:38:18,169 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-07 08:38:18,169 INFO L513 LassoAnalysis]: Proved termination. [2021-11-07 08:38:18,170 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~length~0) = -1*ULTIMATE.start_main_~j~0 + 1*ULTIMATE.start_main_~length~0 Supporting invariants [] [2021-11-07 08:38:18,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-11-07 08:38:18,204 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2021-11-07 08:38:18,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:38:18,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:38:18,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 08:38:18,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:38:18,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:38:18,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 08:38:18,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:38:18,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:38:18,357 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 [2021-11-07 08:38:18,358 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 19 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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) [2021-11-07 08:38:18,381 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 19 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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) Result 20 states and 26 transitions. Complement of second has 4 states. [2021-11-07 08:38:18,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-07 08:38:18,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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) [2021-11-07 08:38:18,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2021-11-07 08:38:18,383 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 11 letters. Loop has 4 letters. [2021-11-07 08:38:18,383 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:38:18,384 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 15 letters. Loop has 4 letters. [2021-11-07 08:38:18,384 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:38:18,384 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 11 letters. Loop has 8 letters. [2021-11-07 08:38:18,385 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:38:18,385 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 26 transitions. [2021-11-07 08:38:18,396 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-07 08:38:18,397 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 19 states and 25 transitions. [2021-11-07 08:38:18,397 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-11-07 08:38:18,397 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-11-07 08:38:18,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 25 transitions. [2021-11-07 08:38:18,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-07 08:38:18,398 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2021-11-07 08:38:18,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 25 transitions. [2021-11-07 08:38:18,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2021-11-07 08:38:18,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 17 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) [2021-11-07 08:38:18,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2021-11-07 08:38:18,403 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-11-07 08:38:18,403 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-11-07 08:38:18,404 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-07 08:38:18,404 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 24 transitions. [2021-11-07 08:38:18,405 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-07 08:38:18,405 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:38:18,405 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:38:18,406 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:38:18,407 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-07 08:38:18,407 INFO L791 eck$LassoCheckResult]: Stem: 279#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 280#L-1 havoc main_#res;havoc main_#t~nondet2, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet5, main_#t~post4, main_#t~mem8, main_#t~post9, main_#t~mem7, main_#t~post6, main_~i~0, main_~j~0, main_~val~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 288#L551 assume !(main_~length~0 < 1); 295#L551-2 call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 289#L553 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 290#L554-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet5;havoc main_#t~nondet5; 281#L556 assume !(main_~val~0 < 0); 282#L556-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 283#L554-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 296#L554-3 assume !(main_~i~0 < main_~length~0); 286#L554-4 main_~j~0 := 0; 287#L561-3 assume !!(main_~j~0 < main_~length~0); 292#L562-3 [2021-11-07 08:38:18,407 INFO L793 eck$LassoCheckResult]: Loop: 292#L562-3 call main_#t~mem7 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 291#L562-1 assume !!(main_#t~mem7 > 0);havoc main_#t~mem7;call main_#t~mem8 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);main_#t~post9 := main_#t~mem8;call write~int(main_#t~post9 - 1, main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);havoc main_#t~mem8;havoc main_#t~post9; 292#L562-3 [2021-11-07 08:38:18,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:38:18,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1720311820, now seen corresponding path program 1 times [2021-11-07 08:38:18,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:38:18,408 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010453349] [2021-11-07 08:38:18,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:38:18,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:38:18,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:38:18,451 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:38:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:38:18,479 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:38:18,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:38:18,488 INFO L85 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 1 times [2021-11-07 08:38:18,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:38:18,489 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331257802] [2021-11-07 08:38:18,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:38:18,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:38:18,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:38:18,499 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:38:18,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:38:18,516 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:38:18,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:38:18,517 INFO L85 PathProgramCache]: Analyzing trace with hash -342748399, now seen corresponding path program 1 times [2021-11-07 08:38:18,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:38:18,518 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93200820] [2021-11-07 08:38:18,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:38:18,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:38:18,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:38:18,545 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:38:18,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:38:18,585 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:38:18,921 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:38:18,921 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:38:18,921 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:38:18,921 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:38:18,922 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-07 08:38:18,922 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:18,922 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:38:18,922 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:38:18,922 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_down-alloca-2.i_Iteration4_Lasso [2021-11-07 08:38:18,922 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:38:18,922 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:38:18,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:18,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:18,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:18,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:18,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:19,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:19,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:19,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:19,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:19,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:19,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:19,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:19,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:19,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:19,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:19,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-11-07 08:38:19,436 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:38:19,436 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-07 08:38:19,437 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:19,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:19,438 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:19,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-11-07 08:38:19,448 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 [2021-11-07 08:38:19,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:38:19,460 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:38:19,460 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:38:19,460 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:38:19,463 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 08:38:19,463 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 08:38:19,484 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:38:19,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-11-07 08:38:19,527 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:19,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:19,528 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:19,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-11-07 08:38:19,535 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 08:38:19,544 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:38:19,544 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:38:19,544 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:38:19,544 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:38:19,545 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:38:19,545 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:38:19,545 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:38:19,547 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:38:19,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-11-07 08:38:19,576 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:19,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:19,577 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:19,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-11-07 08:38:19,579 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 [2021-11-07 08:38:19,588 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:38:19,588 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:38:19,588 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:38:19,588 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:38:19,588 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:38:19,588 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:38:19,589 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:38:19,590 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:38:19,614 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-11-07 08:38:19,614 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:19,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:19,617 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:19,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-11-07 08:38:19,622 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 [2021-11-07 08:38:19,631 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:38:19,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:38:19,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:38:19,631 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:38:19,633 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 08:38:19,633 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 08:38:19,652 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:38:19,677 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-11-07 08:38:19,678 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:19,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:19,679 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:19,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-11-07 08:38:19,680 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 [2021-11-07 08:38:19,689 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:38:19,690 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:38:19,690 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:38:19,690 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:38:19,693 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 08:38:19,693 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 08:38:19,720 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:38:19,761 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-11-07 08:38:19,762 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:19,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:19,763 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:19,772 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 08:38:19,784 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:38:19,784 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:38:19,784 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:38:19,784 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:38:19,787 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 08:38:19,788 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 08:38:19,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-11-07 08:38:19,819 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:38:19,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-11-07 08:38:19,862 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:19,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:19,863 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:19,866 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 [2021-11-07 08:38:19,878 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:38:19,878 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:38:19,878 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:38:19,878 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:38:19,884 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 08:38:19,884 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 08:38:19,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-11-07 08:38:19,900 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-07 08:38:19,914 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-11-07 08:38:19,914 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 6 variables to zero. [2021-11-07 08:38:19,915 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:19,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:19,916 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:19,920 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-07 08:38:19,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-11-07 08:38:19,938 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-07 08:38:19,938 INFO L513 LassoAnalysis]: Proved termination. [2021-11-07 08:38:19,938 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0.base) ULTIMATE.start_main_~arr~0.offset)_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0.base) ULTIMATE.start_main_~arr~0.offset)_1 Supporting invariants [] [2021-11-07 08:38:19,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-11-07 08:38:19,994 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2021-11-07 08:38:20,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:38:20,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:38:20,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 08:38:20,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:38:20,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:38:20,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 08:38:20,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:38:20,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:38:20,138 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-11-07 08:38:20,139 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 9 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2021-11-07 08:38:20,189 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 9. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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 27 states and 35 transitions. Complement of second has 8 states. [2021-11-07 08:38:20,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-07 08:38:20,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2021-11-07 08:38:20,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2021-11-07 08:38:20,191 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 12 letters. Loop has 2 letters. [2021-11-07 08:38:20,191 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:38:20,191 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 14 letters. Loop has 2 letters. [2021-11-07 08:38:20,192 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:38:20,192 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 12 letters. Loop has 4 letters. [2021-11-07 08:38:20,192 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:38:20,192 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 35 transitions. [2021-11-07 08:38:20,193 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-07 08:38:20,194 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 22 states and 28 transitions. [2021-11-07 08:38:20,194 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-11-07 08:38:20,195 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-11-07 08:38:20,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 28 transitions. [2021-11-07 08:38:20,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-07 08:38:20,195 INFO L681 BuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2021-11-07 08:38:20,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 28 transitions. [2021-11-07 08:38:20,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2021-11-07 08:38:20,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 20 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) [2021-11-07 08:38:20,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions. [2021-11-07 08:38:20,198 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 27 transitions. [2021-11-07 08:38:20,198 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 27 transitions. [2021-11-07 08:38:20,199 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-07 08:38:20,199 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 27 transitions. [2021-11-07 08:38:20,200 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-07 08:38:20,200 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:38:20,200 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:38:20,201 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:38:20,201 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-07 08:38:20,201 INFO L791 eck$LassoCheckResult]: Stem: 413#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 414#L-1 havoc main_#res;havoc main_#t~nondet2, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet5, main_#t~post4, main_#t~mem8, main_#t~post9, main_#t~mem7, main_#t~post6, main_~i~0, main_~j~0, main_~val~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 420#L551 assume !(main_~length~0 < 1); 429#L551-2 call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 423#L553 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 424#L554-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet5;havoc main_#t~nondet5; 415#L556 assume !(main_~val~0 < 0); 416#L556-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 417#L554-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 430#L554-3 assume !(main_~i~0 < main_~length~0); 421#L554-4 main_~j~0 := 0; 422#L561-3 assume !!(main_~j~0 < main_~length~0); 428#L562-3 call main_#t~mem7 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 433#L562-1 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 418#L561-2 main_#t~post6 := main_~j~0;main_~j~0 := 1 + main_#t~post6;havoc main_#t~post6; 419#L561-3 assume !!(main_~j~0 < main_~length~0); 426#L562-3 [2021-11-07 08:38:20,201 INFO L793 eck$LassoCheckResult]: Loop: 426#L562-3 call main_#t~mem7 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 425#L562-1 assume !!(main_#t~mem7 > 0);havoc main_#t~mem7;call main_#t~mem8 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);main_#t~post9 := main_#t~mem8;call write~int(main_#t~post9 - 1, main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);havoc main_#t~mem8;havoc main_#t~post9; 426#L562-3 [2021-11-07 08:38:20,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:38:20,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1331270241, now seen corresponding path program 2 times [2021-11-07 08:38:20,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:38:20,202 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983499836] [2021-11-07 08:38:20,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:38:20,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:38:20,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:38:20,262 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:38:20,262 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:38:20,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983499836] [2021-11-07 08:38:20,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983499836] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 08:38:20,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066389789] [2021-11-07 08:38:20,263 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 08:38:20,264 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 08:38:20,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:20,268 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 08:38:20,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-11-07 08:38:20,343 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 08:38:20,343 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 08:38:20,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 08:38:20,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:38:20,475 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:38:20,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1066389789] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 08:38:20,476 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 08:38:20,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-11-07 08:38:20,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989903698] [2021-11-07 08:38:20,477 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-07 08:38:20,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:38:20,478 INFO L85 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 2 times [2021-11-07 08:38:20,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:38:20,478 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653412287] [2021-11-07 08:38:20,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:38:20,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:38:20,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:38:20,485 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:38:20,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:38:20,490 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:38:20,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:38:20,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 08:38:20,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-07 08:38:20,534 INFO L87 Difference]: Start difference. First operand 21 states and 27 transitions. cyclomatic complexity: 10 Second operand has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 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) [2021-11-07 08:38:20,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-11-07 08:38:20,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:38:20,749 INFO L93 Difference]: Finished difference Result 45 states and 57 transitions. [2021-11-07 08:38:20,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 08:38:20,750 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 57 transitions. [2021-11-07 08:38:20,751 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-07 08:38:20,752 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 28 states and 35 transitions. [2021-11-07 08:38:20,752 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-11-07 08:38:20,752 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-11-07 08:38:20,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 35 transitions. [2021-11-07 08:38:20,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-07 08:38:20,753 INFO L681 BuchiCegarLoop]: Abstraction has 28 states and 35 transitions. [2021-11-07 08:38:20,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 35 transitions. [2021-11-07 08:38:20,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 25. [2021-11-07 08:38:20,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.24) internal successors, (31), 24 states have internal predecessors, (31), 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) [2021-11-07 08:38:20,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2021-11-07 08:38:20,756 INFO L704 BuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2021-11-07 08:38:20,756 INFO L587 BuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2021-11-07 08:38:20,756 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-11-07 08:38:20,756 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 31 transitions. [2021-11-07 08:38:20,757 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-07 08:38:20,757 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:38:20,757 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:38:20,758 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:38:20,758 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-07 08:38:20,758 INFO L791 eck$LassoCheckResult]: Stem: 547#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 548#L-1 havoc main_#res;havoc main_#t~nondet2, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet5, main_#t~post4, main_#t~mem8, main_#t~post9, main_#t~mem7, main_#t~post6, main_~i~0, main_~j~0, main_~val~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;havoc main_~val~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 556#L551 assume !(main_~length~0 < 1); 563#L551-2 call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 557#L553 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 558#L554-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet5;havoc main_#t~nondet5; 566#L556 assume !(main_~val~0 < 0); 571#L556-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 564#L554-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 565#L554-3 assume !!(main_~i~0 < main_~length~0);main_~val~0 := main_#t~nondet5;havoc main_#t~nondet5; 549#L556 assume !(main_~val~0 < 0); 550#L556-2 call write~int(main_~val~0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 551#L554-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 570#L554-3 assume !(main_~i~0 < main_~length~0); 554#L554-4 main_~j~0 := 0; 555#L561-3 assume !!(main_~j~0 < main_~length~0); 562#L562-3 call main_#t~mem7 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 569#L562-1 assume !(main_#t~mem7 > 0);havoc main_#t~mem7; 552#L561-2 main_#t~post6 := main_~j~0;main_~j~0 := 1 + main_#t~post6;havoc main_#t~post6; 553#L561-3 assume !!(main_~j~0 < main_~length~0); 560#L562-3 [2021-11-07 08:38:20,758 INFO L793 eck$LassoCheckResult]: Loop: 560#L562-3 call main_#t~mem7 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 559#L562-1 assume !!(main_#t~mem7 > 0);havoc main_#t~mem7;call main_#t~mem8 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);main_#t~post9 := main_#t~mem8;call write~int(main_#t~post9 - 1, main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);havoc main_#t~mem8;havoc main_#t~post9; 560#L562-3 [2021-11-07 08:38:20,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:38:20,759 INFO L85 PathProgramCache]: Analyzing trace with hash 34477914, now seen corresponding path program 3 times [2021-11-07 08:38:20,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:38:20,759 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542077675] [2021-11-07 08:38:20,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:38:20,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:38:20,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:38:20,782 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:38:20,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:38:20,802 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:38:20,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:38:20,803 INFO L85 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 3 times [2021-11-07 08:38:20,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:38:20,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85417118] [2021-11-07 08:38:20,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:38:20,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:38:20,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:38:20,809 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:38:20,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:38:20,814 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:38:20,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:38:20,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1226461473, now seen corresponding path program 1 times [2021-11-07 08:38:20,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:38:20,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469683403] [2021-11-07 08:38:20,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:38:20,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:38:20,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:38:20,834 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:38:20,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:38:20,857 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:38:21,365 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 08:38:21,366 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 08:38:21,366 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 08:38:21,366 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 08:38:21,366 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-07 08:38:21,366 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:21,366 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 08:38:21,366 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 08:38:21,366 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_down-alloca-2.i_Iteration6_Lasso [2021-11-07 08:38:21,366 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 08:38:21,366 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 08:38:21,369 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:21,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:21,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:21,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:21,382 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:21,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:21,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:21,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:21,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:21,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:21,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:21,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:21,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:21,544 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 08:38:21,814 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 08:38:21,814 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-07 08:38:21,814 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:21,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:21,817 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:21,849 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 [2021-11-07 08:38:21,861 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:38:21,861 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:38:21,861 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:38:21,861 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:38:21,861 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:38:21,862 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:38:21,862 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:38:21,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-11-07 08:38:21,879 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:38:21,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-11-07 08:38:21,926 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:21,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:21,928 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:21,932 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 [2021-11-07 08:38:21,944 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:38:21,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:38:21,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:38:21,945 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:38:21,947 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 08:38:21,948 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 08:38:21,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-11-07 08:38:21,963 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:38:21,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-11-07 08:38:21,988 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:21,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:21,989 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:21,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-11-07 08:38:21,991 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 [2021-11-07 08:38:22,000 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:38:22,000 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:38:22,000 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:38:22,000 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:38:22,000 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:38:22,001 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:38:22,001 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:38:22,003 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:38:22,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-11-07 08:38:22,031 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:22,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:22,033 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:22,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-11-07 08:38:22,035 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 [2021-11-07 08:38:22,045 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:38:22,045 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:38:22,045 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:38:22,045 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:38:22,047 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 08:38:22,047 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 08:38:22,050 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:38:22,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-11-07 08:38:22,079 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:22,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:22,080 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:22,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-11-07 08:38:22,082 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 [2021-11-07 08:38:22,091 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:38:22,091 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:38:22,091 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:38:22,092 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:38:22,092 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:38:22,092 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:38:22,092 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:38:22,093 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:38:22,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-11-07 08:38:22,118 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:22,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:22,119 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:22,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-11-07 08:38:22,121 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 [2021-11-07 08:38:22,130 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:38:22,130 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:38:22,130 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:38:22,130 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:38:22,130 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:38:22,131 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:38:22,131 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:38:22,133 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:38:22,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-11-07 08:38:22,160 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:22,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:22,163 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:22,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-11-07 08:38:22,164 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 [2021-11-07 08:38:22,173 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:38:22,173 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:38:22,173 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:38:22,173 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:38:22,175 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 08:38:22,175 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 08:38:22,178 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:38:22,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-11-07 08:38:22,207 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:22,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:22,208 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:22,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-11-07 08:38:22,210 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 [2021-11-07 08:38:22,220 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:38:22,220 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:38:22,220 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:38:22,220 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:38:22,222 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 08:38:22,222 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 08:38:22,228 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:38:22,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-11-07 08:38:22,252 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:22,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:22,253 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:22,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-11-07 08:38:22,264 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 [2021-11-07 08:38:22,273 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:38:22,273 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:38:22,273 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:38:22,273 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:38:22,275 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 08:38:22,275 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 08:38:22,296 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:38:22,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-11-07 08:38:22,343 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:22,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:22,345 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:22,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-11-07 08:38:22,351 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 [2021-11-07 08:38:22,359 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:38:22,360 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:38:22,360 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:38:22,360 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:38:22,362 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 08:38:22,362 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 08:38:22,391 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:38:22,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-11-07 08:38:22,416 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:22,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:22,417 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:22,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-11-07 08:38:22,420 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 [2021-11-07 08:38:22,429 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:38:22,429 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:38:22,429 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:38:22,429 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:38:22,435 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 08:38:22,436 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 08:38:22,460 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:38:22,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-11-07 08:38:22,502 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:22,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:22,504 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:22,517 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 [2021-11-07 08:38:22,528 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:38:22,528 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:38:22,528 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:38:22,528 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:38:22,530 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 08:38:22,530 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 08:38:22,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-11-07 08:38:22,543 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:38:22,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2021-11-07 08:38:22,572 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:22,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:22,573 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:22,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-11-07 08:38:22,575 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 08:38:22,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:38:22,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:38:22,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:38:22,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:38:22,588 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 08:38:22,588 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 08:38:22,611 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:38:22,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2021-11-07 08:38:22,639 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:22,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:22,640 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:22,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-11-07 08:38:22,642 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 [2021-11-07 08:38:22,651 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:38:22,651 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:38:22,651 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:38:22,651 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:38:22,653 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-07 08:38:22,653 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-07 08:38:22,656 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 08:38:22,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-11-07 08:38:22,681 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:22,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:22,683 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:22,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-11-07 08:38:22,684 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 [2021-11-07 08:38:22,693 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 08:38:22,694 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 08:38:22,694 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 08:38:22,694 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 08:38:22,694 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 08:38:22,695 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 08:38:22,695 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 08:38:22,697 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-07 08:38:22,699 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-07 08:38:22,699 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-07 08:38:22,700 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:38:22,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:22,701 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:22,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-11-07 08:38:22,703 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-07 08:38:22,703 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-07 08:38:22,703 INFO L513 LassoAnalysis]: Proved termination. [2021-11-07 08:38:22,703 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0.base) (+ ULTIMATE.start_main_~arr~0.offset (* ULTIMATE.start_main_~j~0 4)))_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0.base) (+ ULTIMATE.start_main_~arr~0.offset (* ULTIMATE.start_main_~j~0 4)))_1 Supporting invariants [] [2021-11-07 08:38:22,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-11-07 08:38:22,736 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2021-11-07 08:38:22,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:38:22,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:38:22,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 08:38:22,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:38:22,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:38:22,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 08:38:22,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:38:22,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:38:22,905 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 [2021-11-07 08:38:22,905 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-11-07 08:38:22,931 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 29 states and 35 transitions. Complement of second has 7 states. [2021-11-07 08:38:22,932 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 [2021-11-07 08:38:22,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-11-07 08:38:22,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2021-11-07 08:38:22,933 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 20 letters. Loop has 2 letters. [2021-11-07 08:38:22,934 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:38:22,935 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-07 08:38:22,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:38:22,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:38:22,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 08:38:22,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:38:23,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:38:23,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 08:38:23,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:38:23,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:38:23,072 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-07 08:38:23,072 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-11-07 08:38:23,088 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 29 states and 35 transitions. Complement of second has 7 states. [2021-11-07 08:38:23,090 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 [2021-11-07 08:38:23,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-11-07 08:38:23,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2021-11-07 08:38:23,091 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 20 letters. Loop has 2 letters. [2021-11-07 08:38:23,091 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:38:23,092 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-07 08:38:23,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:38:23,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:38:23,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 08:38:23,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:38:23,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:38:23,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 08:38:23,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:38:23,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:38:23,215 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 2 loop predicates [2021-11-07 08:38:23,216 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-11-07 08:38:23,233 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 31 states and 39 transitions. Complement of second has 6 states. [2021-11-07 08:38:23,234 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 [2021-11-07 08:38:23,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-11-07 08:38:23,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2021-11-07 08:38:23,234 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 20 letters. Loop has 2 letters. [2021-11-07 08:38:23,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:38:23,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 22 letters. Loop has 2 letters. [2021-11-07 08:38:23,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:38:23,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 20 letters. Loop has 4 letters. [2021-11-07 08:38:23,236 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 08:38:23,236 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 39 transitions. [2021-11-07 08:38:23,237 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-07 08:38:23,237 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2021-11-07 08:38:23,237 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-07 08:38:23,237 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-07 08:38:23,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-07 08:38:23,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:38:23,237 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 08:38:23,238 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 08:38:23,238 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 08:38:23,238 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-11-07 08:38:23,238 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-07 08:38:23,238 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-07 08:38:23,238 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-07 08:38:23,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.11 08:38:23 BoogieIcfgContainer [2021-11-07 08:38:23,246 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-07 08:38:23,246 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 08:38:23,246 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 08:38:23,247 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 08:38:23,247 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:38:13" (3/4) ... [2021-11-07 08:38:23,251 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 08:38:23,251 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 08:38:23,253 INFO L168 Benchmark]: Toolchain (without parser) took 11207.59 ms. Allocated memory was 94.4 MB in the beginning and 144.7 MB in the end (delta: 50.3 MB). Free memory was 58.0 MB in the beginning and 61.8 MB in the end (delta: -3.8 MB). Peak memory consumption was 44.6 MB. Max. memory is 16.1 GB. [2021-11-07 08:38:23,254 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 94.4 MB. Free memory was 66.8 MB in the beginning and 66.8 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:38:23,254 INFO L168 Benchmark]: CACSL2BoogieTranslator took 548.42 ms. Allocated memory is still 94.4 MB. Free memory was 58.0 MB in the beginning and 64.5 MB in the end (delta: -6.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 08:38:23,255 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.18 ms. Allocated memory is still 94.4 MB. Free memory was 64.5 MB in the beginning and 62.9 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:38:23,256 INFO L168 Benchmark]: Boogie Preprocessor took 30.75 ms. Allocated memory is still 94.4 MB. Free memory was 62.9 MB in the beginning and 61.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:38:23,256 INFO L168 Benchmark]: RCFGBuilder took 507.44 ms. Allocated memory is still 94.4 MB. Free memory was 61.6 MB in the beginning and 51.9 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 08:38:23,257 INFO L168 Benchmark]: BuchiAutomizer took 10027.29 ms. Allocated memory was 94.4 MB in the beginning and 144.7 MB in the end (delta: 50.3 MB). Free memory was 51.5 MB in the beginning and 61.8 MB in the end (delta: -10.2 MB). Peak memory consumption was 40.9 MB. Max. memory is 16.1 GB. [2021-11-07 08:38:23,257 INFO L168 Benchmark]: Witness Printer took 5.27 ms. Allocated memory is still 144.7 MB. Free memory is still 61.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:38:23,260 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 94.4 MB. Free memory was 66.8 MB in the beginning and 66.8 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 548.42 ms. Allocated memory is still 94.4 MB. Free memory was 58.0 MB in the beginning and 64.5 MB in the end (delta: -6.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 68.18 ms. Allocated memory is still 94.4 MB. Free memory was 64.5 MB in the beginning and 62.9 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.75 ms. Allocated memory is still 94.4 MB. Free memory was 62.9 MB in the beginning and 61.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 507.44 ms. Allocated memory is still 94.4 MB. Free memory was 61.6 MB in the beginning and 51.9 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 10027.29 ms. Allocated memory was 94.4 MB in the beginning and 144.7 MB in the end (delta: 50.3 MB). Free memory was 51.5 MB in the beginning and 61.8 MB in the end (delta: -10.2 MB). Peak memory consumption was 40.9 MB. Max. memory is 16.1 GB. * Witness Printer took 5.27 ms. Allocated memory is still 144.7 MB. Free memory is still 61.8 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 6 terminating modules (2 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function length + -1 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * j + length and consists of 3 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[arr][arr] and consists of 5 locations. One nondeterministic module has affine ranking function unknown-#memory_int-unknown[arr][arr + j * 4] and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.9s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 8.2s. Construction of modules took 0.2s. Büchi inclusion checks took 1.2s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 8 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 25 states and ocurred in iteration 5. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 110 SDtfs, 153 SDslu, 88 SDs, 0 SdLazy, 164 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU2 SILI0 SILT0 lasso4 LassoPreprocessingBenchmarks: Lassos: inital131 mio100 ax113 hnf99 lsp82 ukn77 mio100 lsp56 div100 bol100 ite100 ukn100 eq160 hnf92 smp90 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 52ms VariablesStem: 3 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-07 08:38:23,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-11-07 08:38:23,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2021-11-07 08:38:23,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b99b42f-740d-46ae-a326-5ee47e1607c8/bin/uautomizer-AkOaLMaTGY/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