./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/count_up_and_down_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/count_up_and_down_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y --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 00bfc508b8ea24f88f85b042e795fbae14e8287990a04ebdf542583ad129e19a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 17:31:22,503 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 17:31:22,506 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 17:31:22,548 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 17:31:22,549 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 17:31:22,550 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 17:31:22,552 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 17:31:22,554 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 17:31:22,557 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 17:31:22,558 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 17:31:22,560 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 17:31:22,561 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 17:31:22,562 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 17:31:22,563 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 17:31:22,565 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 17:31:22,567 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 17:31:22,569 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 17:31:22,570 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 17:31:22,573 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 17:31:22,576 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 17:31:22,578 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 17:31:22,586 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 17:31:22,587 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 17:31:22,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 17:31:22,593 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 17:31:22,594 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 17:31:22,594 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 17:31:22,596 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 17:31:22,596 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 17:31:22,598 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 17:31:22,598 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 17:31:22,599 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 17:31:22,600 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 17:31:22,601 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 17:31:22,612 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 17:31:22,613 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 17:31:22,614 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 17:31:22,614 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 17:31:22,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 17:31:22,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 17:31:22,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 17:31:22,617 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-13 17:31:22,666 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 17:31:22,666 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 17:31:22,667 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 17:31:22,667 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 17:31:22,668 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 17:31:22,669 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 17:31:22,669 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 17:31:22,669 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-13 17:31:22,669 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-13 17:31:22,669 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-13 17:31:22,671 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-13 17:31:22,671 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-13 17:31:22,671 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-13 17:31:22,672 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 17:31:22,672 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 17:31:22,672 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 17:31:22,672 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 17:31:22,672 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-13 17:31:22,672 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-13 17:31:22,673 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-13 17:31:22,673 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 17:31:22,673 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-13 17:31:22,673 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 17:31:22,673 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-13 17:31:22,674 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 17:31:22,674 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 17:31:22,676 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 17:31:22,676 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 17:31:22,676 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 17:31:22,678 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-13 17:31:22,678 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_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00bfc508b8ea24f88f85b042e795fbae14e8287990a04ebdf542583ad129e19a [2021-11-13 17:31:22,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 17:31:22,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 17:31:22,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 17:31:22,959 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 17:31:22,960 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 17:31:22,962 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/termination-15/count_up_and_down_alloca.i [2021-11-13 17:31:23,040 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/data/3cdacdf3c/5fa9cd8b7735485a8c9b2327bee2fe65/FLAG707db94c8 [2021-11-13 17:31:23,609 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 17:31:23,609 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/sv-benchmarks/c/termination-15/count_up_and_down_alloca.i [2021-11-13 17:31:23,623 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/data/3cdacdf3c/5fa9cd8b7735485a8c9b2327bee2fe65/FLAG707db94c8 [2021-11-13 17:31:23,938 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/data/3cdacdf3c/5fa9cd8b7735485a8c9b2327bee2fe65 [2021-11-13 17:31:23,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 17:31:23,945 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 17:31:23,952 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 17:31:23,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 17:31:23,955 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 17:31:23,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:31:23" (1/1) ... [2021-11-13 17:31:23,957 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc02b7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:23, skipping insertion in model container [2021-11-13 17:31:23,958 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:31:23" (1/1) ... [2021-11-13 17:31:23,965 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 17:31:24,024 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 17:31:24,427 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:31:24,437 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 17:31:24,498 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:31:24,539 INFO L208 MainTranslator]: Completed translation [2021-11-13 17:31:24,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:24 WrapperNode [2021-11-13 17:31:24,540 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 17:31:24,542 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 17:31:24,542 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 17:31:24,542 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 17:31:24,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:24" (1/1) ... [2021-11-13 17:31:24,582 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:24" (1/1) ... [2021-11-13 17:31:24,618 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 17:31:24,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 17:31:24,620 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 17:31:24,620 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 17:31:24,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:24" (1/1) ... [2021-11-13 17:31:24,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:24" (1/1) ... [2021-11-13 17:31:24,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:24" (1/1) ... [2021-11-13 17:31:24,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:24" (1/1) ... [2021-11-13 17:31:24,652 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:24" (1/1) ... [2021-11-13 17:31:24,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:24" (1/1) ... [2021-11-13 17:31:24,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:24" (1/1) ... [2021-11-13 17:31:24,661 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 17:31:24,667 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 17:31:24,667 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 17:31:24,667 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 17:31:24,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:24" (1/1) ... [2021-11-13 17:31:24,683 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:31:24,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:24,714 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:31:24,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-13 17:31:24,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 17:31:24,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 17:31:24,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 17:31:24,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 17:31:24,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 17:31:24,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 17:31:25,099 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 17:31:25,100 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-13 17:31:25,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:31:25 BoogieIcfgContainer [2021-11-13 17:31:25,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 17:31:25,103 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-13 17:31:25,103 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-13 17:31:25,107 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-13 17:31:25,108 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 17:31:25,108 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 05:31:23" (1/3) ... [2021-11-13 17:31:25,110 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@582eb780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 05:31:25, skipping insertion in model container [2021-11-13 17:31:25,110 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 17:31:25,110 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:31:24" (2/3) ... [2021-11-13 17:31:25,111 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@582eb780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 05:31:25, skipping insertion in model container [2021-11-13 17:31:25,111 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 17:31:25,111 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:31:25" (3/3) ... [2021-11-13 17:31:25,113 INFO L388 chiAutomizerObserver]: Analyzing ICFG count_up_and_down_alloca.i [2021-11-13 17:31:25,173 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-13 17:31:25,173 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-13 17:31:25,174 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-13 17:31:25,174 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-13 17:31:25,174 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-13 17:31:25,174 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-13 17:31:25,174 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-13 17:31:25,175 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-13 17:31:25,190 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 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) [2021-11-13 17:31:25,211 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-11-13 17:31:25,211 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 17:31:25,211 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 17:31:25,218 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-11-13 17:31:25,218 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-13 17:31:25,218 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-13 17:31:25,219 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 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) [2021-11-13 17:31:25,221 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-11-13 17:31:25,221 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 17:31:25,221 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 17:31:25,221 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-11-13 17:31:25,222 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-13 17:31:25,230 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~mem208#1, main_#t~post207#1, main_#t~mem211#1, main_#t~post212#1, main_#t~mem210#1, main_#t~post209#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 15#L367true assume !(main_~length~0#1 < 1); 12#L367-2true call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 8#L369true assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);call write~int(0, main_~arr~0#1.base, main_~arr~0#1.offset, 4);main_~i~0#1 := 1; 3#L371-3true [2021-11-13 17:31:25,230 INFO L793 eck$LassoCheckResult]: Loop: 3#L371-3true assume !!(main_~i~0#1 < main_~length~0#1);call main_#t~mem208#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~i~0#1 - 1), 4);call write~int(1 + main_#t~mem208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~mem208#1; 14#L371-2true main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 3#L371-3true [2021-11-13 17:31:25,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:31:25,236 INFO L85 PathProgramCache]: Analyzing trace with hash 28695753, now seen corresponding path program 1 times [2021-11-13 17:31:25,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:31:25,245 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858008588] [2021-11-13 17:31:25,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:25,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:31:25,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:31:25,350 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 17:31:25,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:31:25,385 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 17:31:25,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:31:25,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1667, now seen corresponding path program 1 times [2021-11-13 17:31:25,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:31:25,389 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49517442] [2021-11-13 17:31:25,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:25,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:31:25,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:31:25,400 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 17:31:25,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:31:25,411 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 17:31:25,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:31:25,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1806815563, now seen corresponding path program 1 times [2021-11-13 17:31:25,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:31:25,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903127695] [2021-11-13 17:31:25,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:25,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:31:25,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:31:25,436 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 17:31:25,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:31:25,470 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 17:31:25,867 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 17:31:25,868 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 17:31:25,868 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 17:31:25,868 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 17:31:25,868 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-13 17:31:25,868 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:31:25,869 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 17:31:25,869 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 17:31:25,869 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_and_down_alloca.i_Iteration1_Lasso [2021-11-13 17:31:25,869 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 17:31:25,869 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 17:31:25,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:31:25,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:31:25,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:31:25,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:31:25,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:31:25,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:31:25,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:31:25,924 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:31:25,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:31:25,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:31:25,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:31:25,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:31:26,448 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-13 17:31:26,453 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-13 17:31:26,456 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:31:26,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:26,458 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:31:26,474 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 [2021-11-13 17:31:26,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:31:26,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:31:26,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:31:26,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:31:26,496 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 17:31:26,498 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 17:31:26,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-13 17:31:26,508 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 17:31:26,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-13 17:31:26,549 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:31:26,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:26,550 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:31:26,556 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 [2021-11-13 17:31:26,566 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:31:26,566 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 17:31:26,566 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:31:26,567 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:31:26,567 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:31:26,568 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 17:31:26,569 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 17:31:26,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-13 17:31:26,582 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 17:31:26,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-13 17:31:26,620 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:31:26,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:26,623 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:31:26,632 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 [2021-11-13 17:31:26,642 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:31:26,642 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 17:31:26,642 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:31:26,642 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:31:26,642 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:31:26,644 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 17:31:26,645 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 17:31:26,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-13 17:31:26,658 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 17:31:26,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-13 17:31:26,695 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:31:26,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:26,697 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:31:26,707 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 [2021-11-13 17:31:26,717 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:31:26,717 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 17:31:26,718 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:31:26,718 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:31:26,718 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:31:26,719 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 17:31:26,719 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 17:31:26,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-13 17:31:26,728 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 17:31:26,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-13 17:31:26,763 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:31:26,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:26,764 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:31:26,771 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 17:31:26,783 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:31:26,784 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 17:31:26,784 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:31:26,784 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:31:26,784 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:31:26,785 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 17:31:26,785 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 17:31:26,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-13 17:31:26,802 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 17:31:26,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-13 17:31:26,839 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:31:26,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:26,841 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:31:26,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-13 17:31:26,843 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 [2021-11-13 17:31:26,854 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:31:26,854 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 17:31:26,855 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:31:26,855 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:31:26,855 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:31:26,856 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 17:31:26,856 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 17:31:26,882 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 17:31:26,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-11-13 17:31:26,910 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:31:26,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:26,912 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:31:26,919 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 [2021-11-13 17:31:26,928 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:31:26,929 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 17:31:26,929 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:31:26,929 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:31:26,929 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:31:26,930 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 17:31:26,930 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 17:31:26,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-13 17:31:26,945 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 17:31:26,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-13 17:31:26,969 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:31:26,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:26,970 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:31:26,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-13 17:31:26,975 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 [2021-11-13 17:31:26,985 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:31:26,985 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 17:31:26,985 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:31:26,986 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:31:26,986 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:31:26,988 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 17:31:26,988 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 17:31:26,990 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 17:31:27,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-11-13 17:31:27,013 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:31:27,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:27,014 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:31:27,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-13 17:31:27,017 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 [2021-11-13 17:31:27,024 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:31:27,024 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 17:31:27,024 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:31:27,024 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:31:27,024 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:31:27,025 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 17:31:27,025 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 17:31:27,030 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 17:31:27,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-13 17:31:27,056 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:31:27,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:27,057 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:31:27,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-13 17:31:27,061 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 [2021-11-13 17:31:27,071 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:31:27,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:31:27,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:31:27,071 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:31:27,074 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 17:31:27,074 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 17:31:27,102 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 17:31:27,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-13 17:31:27,142 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:31:27,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:27,143 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:31:27,150 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 [2021-11-13 17:31:27,160 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:31:27,160 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 17:31:27,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:31:27,160 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:31:27,160 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:31:27,161 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 17:31:27,161 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 17:31:27,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-13 17:31:27,182 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 17:31:27,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-13 17:31:27,219 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:31:27,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:27,220 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:31:27,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-13 17:31:27,224 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 [2021-11-13 17:31:27,231 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:31:27,231 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 17:31:27,232 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:31:27,232 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:31:27,232 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:31:27,233 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 17:31:27,233 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 17:31:27,246 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 17:31:27,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-13 17:31:27,271 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:31:27,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:27,276 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:31:27,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-13 17:31:27,278 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 [2021-11-13 17:31:27,287 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:31:27,287 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:31:27,287 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:31:27,287 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:31:27,299 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 17:31:27,299 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 17:31:27,328 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-13 17:31:27,379 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2021-11-13 17:31:27,379 INFO L444 ModelExtractionUtils]: 8 out of 22 variables were initially zero. Simplification set additionally 10 variables to zero. [2021-11-13 17:31:27,381 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:31:27,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:27,394 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:31:27,429 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-13 17:31:27,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-13 17:31:27,451 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-13 17:31:27,451 INFO L513 LassoAnalysis]: Proved termination. [2021-11-13 17:31:27,452 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, v_rep(select #length ULTIMATE.start_main_~arr~0#1.base)_1, ULTIMATE.start_main_~arr~0#1.offset) = -4*ULTIMATE.start_main_~i~0#1 + 1*v_rep(select #length ULTIMATE.start_main_~arr~0#1.base)_1 - 1*ULTIMATE.start_main_~arr~0#1.offset Supporting invariants [] [2021-11-13 17:31:27,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-13 17:31:27,505 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2021-11-13 17:31:27,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:31:27,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:31:27,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 17:31:27,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:31:27,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:31:27,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 17:31:27,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:31:27,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:31:27,660 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 [2021-11-13 17:31:27,662 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 16 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 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 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:31:27,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-13 17:31:27,772 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 16 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 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 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 39 states and 54 transitions. Complement of second has 7 states. [2021-11-13 17:31:27,773 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 [2021-11-13 17:31:27,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:31:27,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 37 transitions. [2021-11-13 17:31:27,781 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 5 letters. Loop has 2 letters. [2021-11-13 17:31:27,782 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 17:31:27,782 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 7 letters. Loop has 2 letters. [2021-11-13 17:31:27,782 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 17:31:27,782 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 5 letters. Loop has 4 letters. [2021-11-13 17:31:27,782 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 17:31:27,784 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 54 transitions. [2021-11-13 17:31:27,787 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-11-13 17:31:27,790 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 13 states and 17 transitions. [2021-11-13 17:31:27,792 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-11-13 17:31:27,792 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-11-13 17:31:27,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2021-11-13 17:31:27,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 17:31:27,793 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-11-13 17:31:27,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2021-11-13 17:31:27,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-11-13 17:31:27,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:31:27,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2021-11-13 17:31:27,859 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-11-13 17:31:27,859 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-11-13 17:31:27,859 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-13 17:31:27,860 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2021-11-13 17:31:27,860 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-11-13 17:31:27,860 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 17:31:27,860 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 17:31:27,861 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:31:27,861 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-11-13 17:31:27,861 INFO L791 eck$LassoCheckResult]: Stem: 125#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 126#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~mem208#1, main_#t~post207#1, main_#t~mem211#1, main_#t~post212#1, main_#t~mem210#1, main_#t~post209#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 131#L367 assume !(main_~length~0#1 < 1); 129#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 130#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);call write~int(0, main_~arr~0#1.base, main_~arr~0#1.offset, 4);main_~i~0#1 := 1; 119#L371-3 assume !(main_~i~0#1 < main_~length~0#1); 120#L371-4 main_~j~0#1 := 0; 124#L374-3 [2021-11-13 17:31:27,863 INFO L793 eck$LassoCheckResult]: Loop: 124#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 127#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 128#L375-1 assume !(main_#t~mem210#1 > 0);havoc main_#t~mem210#1; 123#L374-2 main_#t~post209#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 124#L374-3 [2021-11-13 17:31:27,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:31:27,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1806815505, now seen corresponding path program 1 times [2021-11-13 17:31:27,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:31:27,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528133280] [2021-11-13 17:31:27,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:27,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:31:27,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:31:27,894 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 17:31:27,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:31:27,920 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 17:31:27,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:31:27,921 INFO L85 PathProgramCache]: Analyzing trace with hash 2036812, now seen corresponding path program 1 times [2021-11-13 17:31:27,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:31:27,921 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410054700] [2021-11-13 17:31:27,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:27,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:31:27,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:31:27,927 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 17:31:27,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:31:27,934 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 17:31:27,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:31:27,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1386095268, now seen corresponding path program 1 times [2021-11-13 17:31:27,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:31:27,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26802919] [2021-11-13 17:31:27,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:27,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:31:27,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:31:27,948 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 17:31:27,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:31:27,965 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 17:31:28,240 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 17:31:28,241 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 17:31:28,242 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 17:31:28,242 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 17:31:28,242 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-13 17:31:28,242 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:31:28,242 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 17:31:28,242 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 17:31:28,243 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_and_down_alloca.i_Iteration2_Lasso [2021-11-13 17:31:28,243 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 17:31:28,243 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 17:31:28,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:31:28,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:31:28,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:31:28,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:31:28,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:31:28,382 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:31:28,384 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:31:28,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:31:28,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:31:28,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:31:28,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:31:28,594 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-13 17:31:28,594 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-13 17:31:28,595 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:31:28,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:28,596 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:31:28,606 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 [2021-11-13 17:31:28,616 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:31:28,616 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:31:28,616 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:31:28,617 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:31:28,625 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 17:31:28,625 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 17:31:28,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-13 17:31:28,650 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-13 17:31:28,687 INFO L443 ModelExtractionUtils]: Simplification made 15 calls to the SMT solver. [2021-11-13 17:31:28,687 INFO L444 ModelExtractionUtils]: 8 out of 25 variables were initially zero. Simplification set additionally 14 variables to zero. [2021-11-13 17:31:28,687 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:31:28,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:28,688 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:31:28,690 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-13 17:31:28,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-13 17:31:28,727 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-13 17:31:28,727 INFO L513 LassoAnalysis]: Proved termination. [2021-11-13 17:31:28,727 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length~0#1, ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~length~0#1 - 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2021-11-13 17:31:28,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-13 17:31:28,769 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2021-11-13 17:31:28,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:31:28,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:31:28,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 17:31:28,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:31:28,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:31:28,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 17:31:28,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:31:28,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:31:28,871 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 [2021-11-13 17:31:28,871 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:31:28,886 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 18 states and 24 transitions. Complement of second has 4 states. [2021-11-13 17:31:28,886 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 [2021-11-13 17:31:28,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:31:28,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2021-11-13 17:31:28,888 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 7 letters. Loop has 4 letters. [2021-11-13 17:31:28,888 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 17:31:28,888 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 11 letters. Loop has 4 letters. [2021-11-13 17:31:28,888 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 17:31:28,888 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 7 letters. Loop has 8 letters. [2021-11-13 17:31:28,889 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 17:31:28,889 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 24 transitions. [2021-11-13 17:31:28,890 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-13 17:31:28,891 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 17 states and 23 transitions. [2021-11-13 17:31:28,891 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-11-13 17:31:28,891 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-11-13 17:31:28,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 23 transitions. [2021-11-13 17:31:28,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-13 17:31:28,891 INFO L681 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2021-11-13 17:31:28,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 23 transitions. [2021-11-13 17:31:28,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2021-11-13 17:31:28,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.375) internal successors, (22), 15 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:31:28,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 22 transitions. [2021-11-13 17:31:28,894 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2021-11-13 17:31:28,894 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2021-11-13 17:31:28,894 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-13 17:31:28,894 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 22 transitions. [2021-11-13 17:31:28,895 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-13 17:31:28,895 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 17:31:28,895 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 17:31:28,898 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:31:28,898 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-13 17:31:28,899 INFO L791 eck$LassoCheckResult]: Stem: 227#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 228#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~mem208#1, main_#t~post207#1, main_#t~mem211#1, main_#t~post212#1, main_#t~mem210#1, main_#t~post209#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 229#L367 assume !(main_~length~0#1 < 1); 221#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 222#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);call write~int(0, main_~arr~0#1.base, main_~arr~0#1.offset, 4);main_~i~0#1 := 1; 215#L371-3 assume !(main_~i~0#1 < main_~length~0#1); 216#L371-4 main_~j~0#1 := 0; 230#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 223#L375-3 [2021-11-13 17:31:28,900 INFO L793 eck$LassoCheckResult]: Loop: 223#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 224#L375-1 assume !!(main_#t~mem210#1 > 0);havoc main_#t~mem210#1;call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post212#1 := main_#t~mem211#1;call write~int(main_#t~post212#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem211#1;havoc main_#t~post212#1; 223#L375-3 [2021-11-13 17:31:28,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:31:28,900 INFO L85 PathProgramCache]: Analyzing trace with hash 176705843, now seen corresponding path program 1 times [2021-11-13 17:31:28,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:31:28,904 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638088654] [2021-11-13 17:31:28,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:28,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:31:28,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:31:28,919 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 17:31:28,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:31:28,950 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 17:31:28,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:31:28,954 INFO L85 PathProgramCache]: Analyzing trace with hash 2278, now seen corresponding path program 1 times [2021-11-13 17:31:28,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:31:28,954 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798147391] [2021-11-13 17:31:28,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:28,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:31:28,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:31:28,966 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 17:31:28,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:31:28,976 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 17:31:28,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:31:28,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1984375400, now seen corresponding path program 1 times [2021-11-13 17:31:28,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:31:28,979 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642574280] [2021-11-13 17:31:28,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:28,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:31:28,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:31:29,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-13 17:31:29,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:31:29,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:31:29,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642574280] [2021-11-13 17:31:29,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642574280] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:31:29,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:31:29,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 17:31:29,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411129666] [2021-11-13 17:31:29,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:31:29,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:31:29,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:31:29,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:31:29,234 INFO L87 Difference]: Start difference. First operand 16 states and 22 transitions. cyclomatic complexity: 9 Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:31:29,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:31:29,290 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions. [2021-11-13 17:31:29,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 17:31:29,291 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 34 transitions. [2021-11-13 17:31:29,292 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-13 17:31:29,293 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 25 states and 32 transitions. [2021-11-13 17:31:29,293 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-11-13 17:31:29,293 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-11-13 17:31:29,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 32 transitions. [2021-11-13 17:31:29,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-13 17:31:29,294 INFO L681 BuchiCegarLoop]: Abstraction has 25 states and 32 transitions. [2021-11-13 17:31:29,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 32 transitions. [2021-11-13 17:31:29,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 18. [2021-11-13 17:31:29,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 17 states have internal predecessors, (23), 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) [2021-11-13 17:31:29,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2021-11-13 17:31:29,296 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-11-13 17:31:29,296 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-11-13 17:31:29,296 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-13 17:31:29,297 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2021-11-13 17:31:29,297 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-13 17:31:29,297 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 17:31:29,297 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 17:31:29,298 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:31:29,298 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-13 17:31:29,298 INFO L791 eck$LassoCheckResult]: Stem: 281#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 282#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~mem208#1, main_#t~post207#1, main_#t~mem211#1, main_#t~post212#1, main_#t~mem210#1, main_#t~post209#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 285#L367 assume !(main_~length~0#1 < 1); 283#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 284#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);call write~int(0, main_~arr~0#1.base, main_~arr~0#1.offset, 4);main_~i~0#1 := 1; 273#L371-3 assume !(main_~i~0#1 < main_~length~0#1); 274#L371-4 main_~j~0#1 := 0; 287#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 288#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 286#L375-1 assume !(main_#t~mem210#1 > 0);havoc main_#t~mem210#1; 271#L374-2 main_#t~post209#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 272#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 277#L375-3 [2021-11-13 17:31:29,298 INFO L793 eck$LassoCheckResult]: Loop: 277#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 278#L375-1 assume !!(main_#t~mem210#1 > 0);havoc main_#t~mem210#1;call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post212#1 := main_#t~mem211#1;call write~int(main_#t~post212#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem211#1;havoc main_#t~post212#1; 277#L375-3 [2021-11-13 17:31:29,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:31:29,299 INFO L85 PathProgramCache]: Analyzing trace with hash -19280312, now seen corresponding path program 2 times [2021-11-13 17:31:29,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:31:29,299 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267745351] [2021-11-13 17:31:29,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:29,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:31:29,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:31:29,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:31:29,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:31:29,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267745351] [2021-11-13 17:31:29,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267745351] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 17:31:29,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787043308] [2021-11-13 17:31:29,344 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 17:31:29,344 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 17:31:29,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:29,345 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 17:31:29,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-13 17:31:29,403 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 17:31:29,403 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 17:31:29,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 17:31:29,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:31:29,501 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:31:29,502 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-13 17:31:29,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787043308] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:31:29,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 17:31:29,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2021-11-13 17:31:29,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985071535] [2021-11-13 17:31:29,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:31:29,503 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-13 17:31:29,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:31:29,504 INFO L85 PathProgramCache]: Analyzing trace with hash 2278, now seen corresponding path program 2 times [2021-11-13 17:31:29,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:31:29,504 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577651262] [2021-11-13 17:31:29,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:29,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:31:29,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:31:29,514 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 17:31:29,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:31:29,519 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 17:31:29,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:31:29,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:31:29,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:31:29,564 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. cyclomatic complexity: 8 Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:31:29,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:31:29,640 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2021-11-13 17:31:29,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 17:31:29,641 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 41 transitions. [2021-11-13 17:31:29,645 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-13 17:31:29,649 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 19 states and 22 transitions. [2021-11-13 17:31:29,650 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-11-13 17:31:29,650 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-11-13 17:31:29,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 22 transitions. [2021-11-13 17:31:29,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-13 17:31:29,650 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 22 transitions. [2021-11-13 17:31:29,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 22 transitions. [2021-11-13 17:31:29,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2021-11-13 17:31:29,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 17 states have internal predecessors, (21), 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) [2021-11-13 17:31:29,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2021-11-13 17:31:29,656 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-11-13 17:31:29,656 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-11-13 17:31:29,657 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-13 17:31:29,657 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 21 transitions. [2021-11-13 17:31:29,658 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-13 17:31:29,659 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 17:31:29,659 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 17:31:29,660 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:31:29,660 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-13 17:31:29,660 INFO L791 eck$LassoCheckResult]: Stem: 386#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 387#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~mem208#1, main_#t~post207#1, main_#t~mem211#1, main_#t~post212#1, main_#t~mem210#1, main_#t~post209#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 390#L367 assume !(main_~length~0#1 < 1); 388#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 389#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);call write~int(0, main_~arr~0#1.base, main_~arr~0#1.offset, 4);main_~i~0#1 := 1; 376#L371-3 assume !!(main_~i~0#1 < main_~length~0#1);call main_#t~mem208#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~i~0#1 - 1), 4);call write~int(1 + main_#t~mem208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~mem208#1; 377#L371-2 main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 378#L371-3 assume !(main_~i~0#1 < main_~length~0#1); 379#L371-4 main_~j~0#1 := 0; 391#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 384#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 385#L375-1 assume !(main_#t~mem210#1 > 0);havoc main_#t~mem210#1; 380#L374-2 main_#t~post209#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 381#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 382#L375-3 [2021-11-13 17:31:29,660 INFO L793 eck$LassoCheckResult]: Loop: 382#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 383#L375-1 assume !!(main_#t~mem210#1 > 0);havoc main_#t~mem210#1;call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post212#1 := main_#t~mem211#1;call write~int(main_#t~post212#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem211#1;havoc main_#t~post212#1; 382#L375-3 [2021-11-13 17:31:29,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:31:29,660 INFO L85 PathProgramCache]: Analyzing trace with hash -744742010, now seen corresponding path program 1 times [2021-11-13 17:31:29,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:31:29,665 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142451545] [2021-11-13 17:31:29,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:29,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:31:29,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:31:29,691 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 17:31:29,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:31:29,724 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 17:31:29,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:31:29,725 INFO L85 PathProgramCache]: Analyzing trace with hash 2278, now seen corresponding path program 3 times [2021-11-13 17:31:29,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:31:29,726 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043941937] [2021-11-13 17:31:29,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:29,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:31:29,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:31:29,733 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 17:31:29,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:31:29,748 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 17:31:29,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:31:29,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1562468139, now seen corresponding path program 1 times [2021-11-13 17:31:29,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:31:29,749 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601112278] [2021-11-13 17:31:29,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:31:29,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:31:29,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:31:29,780 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 17:31:29,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:31:29,812 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 17:31:30,109 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 17:31:30,109 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 17:31:30,109 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 17:31:30,109 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 17:31:30,109 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-13 17:31:30,110 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:31:30,110 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 17:31:30,110 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 17:31:30,110 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_and_down_alloca.i_Iteration5_Lasso [2021-11-13 17:31:30,110 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 17:31:30,110 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 17:31:30,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:31:30,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:31:30,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:31:30,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:31:30,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:31:30,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:31:30,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:31:30,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:31:30,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:31:30,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:31:30,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:31:30,410 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-13 17:31:30,410 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-13 17:31:30,411 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:31:30,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:30,415 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:31:30,421 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 [2021-11-13 17:31:30,430 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:31:30,430 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 17:31:30,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:31:30,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:31:30,431 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:31:30,432 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 17:31:30,432 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 17:31:30,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-13 17:31:30,440 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 17:31:30,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-11-13 17:31:30,478 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:31:30,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:30,479 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:31:30,494 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 [2021-11-13 17:31:30,503 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:31:30,503 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 17:31:30,504 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:31:30,504 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:31:30,504 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:31:30,504 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 17:31:30,504 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 17:31:30,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-11-13 17:31:30,522 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 17:31:30,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-11-13 17:31:30,547 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:31:30,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:30,548 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:31:30,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-11-13 17:31:30,552 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 [2021-11-13 17:31:30,567 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:31:30,567 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 17:31:30,567 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:31:30,567 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:31:30,567 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:31:30,569 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 17:31:30,569 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 17:31:30,584 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 17:31:30,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-11-13 17:31:30,617 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:31:30,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:30,619 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:31:30,627 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 [2021-11-13 17:31:30,636 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:31:30,636 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:31:30,636 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:31:30,636 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:31:30,638 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 17:31:30,639 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 17:31:30,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-11-13 17:31:30,658 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 17:31:30,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-11-13 17:31:30,696 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:31:30,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:30,697 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:31:30,703 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 [2021-11-13 17:31:30,712 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:31:30,712 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 17:31:30,712 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:31:30,712 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:31:30,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:31:30,713 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 17:31:30,713 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 17:31:30,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-11-13 17:31:30,727 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 17:31:30,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-11-13 17:31:30,764 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:31:30,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:30,765 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:31:30,768 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 17:31:30,777 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:31:30,777 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 17:31:30,778 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:31:30,778 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:31:30,778 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:31:30,778 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 17:31:30,779 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 17:31:30,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-11-13 17:31:30,798 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 17:31:30,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-11-13 17:31:30,819 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:31:30,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:30,820 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:31:30,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-11-13 17:31:30,822 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 [2021-11-13 17:31:30,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:31:30,829 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 17:31:30,829 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:31:30,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:31:30,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:31:30,830 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 17:31:30,830 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 17:31:30,835 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 17:31:30,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-11-13 17:31:30,856 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:31:30,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:30,857 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:31:30,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-11-13 17:31:30,859 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 [2021-11-13 17:31:30,866 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:31:30,866 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 17:31:30,866 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:31:30,866 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:31:30,866 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:31:30,867 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 17:31:30,868 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 17:31:30,890 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 17:31:30,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-11-13 17:31:30,928 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:31:30,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:30,932 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:31:30,944 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-13 17:31:30,953 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:31:30,953 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:31:30,953 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:31:30,953 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:31:30,956 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 17:31:30,956 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 17:31:30,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-11-13 17:31:30,970 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 17:31:31,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-11-13 17:31:31,008 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:31:31,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:31,009 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:31:31,013 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 [2021-11-13 17:31:31,023 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:31:31,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:31:31,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:31:31,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:31:31,035 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 17:31:31,035 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 17:31:31,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-11-13 17:31:31,054 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 17:31:31,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-11-13 17:31:31,092 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:31:31,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:31,093 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:31:31,099 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 [2021-11-13 17:31:31,109 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:31:31,109 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:31:31,109 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:31:31,109 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:31:31,112 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 17:31:31,112 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 17:31:31,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-11-13 17:31:31,126 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 17:31:31,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-11-13 17:31:31,163 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:31:31,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:31,163 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:31:31,165 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 [2021-11-13 17:31:31,175 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:31:31,175 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 17:31:31,175 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:31:31,175 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:31:31,175 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:31:31,176 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 17:31:31,176 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 17:31:31,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-11-13 17:31:31,202 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-13 17:31:31,204 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-11-13 17:31:31,205 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-13 17:31:31,205 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:31:31,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:31:31,207 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:31:31,208 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-13 17:31:31,208 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-13 17:31:31,208 INFO L513 LassoAnalysis]: Proved termination. [2021-11-13 17:31:31,208 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0#1.base) (+ ULTIMATE.start_main_~arr~0#1.offset (* ULTIMATE.start_main_~j~0#1 4)))_2) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0#1.base) (+ ULTIMATE.start_main_~arr~0#1.offset (* ULTIMATE.start_main_~j~0#1 4)))_2 Supporting invariants [] [2021-11-13 17:31:31,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-11-13 17:31:31,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-11-13 17:31:31,249 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2021-11-13 17:31:31,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:31:31,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:31:31,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 17:31:31,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:31:31,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:31:31,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 17:31:31,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:31:31,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:31:31,338 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 [2021-11-13 17:31:31,339 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2021-11-13 17:31:31,355 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 21 states and 24 transitions. Complement of second has 7 states. [2021-11-13 17:31:31,355 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 [2021-11-13 17:31:31,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2021-11-13 17:31:31,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2021-11-13 17:31:31,359 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 14 letters. Loop has 2 letters. [2021-11-13 17:31:31,359 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 17:31:31,360 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-13 17:31:31,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:31:31,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:31:31,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 17:31:31,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:31:31,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:31:31,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 17:31:31,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:31:31,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:31:31,450 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 [2021-11-13 17:31:31,450 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2021-11-13 17:31:31,468 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 21 states and 24 transitions. Complement of second has 7 states. [2021-11-13 17:31:31,468 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 [2021-11-13 17:31:31,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2021-11-13 17:31:31,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2021-11-13 17:31:31,471 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 14 letters. Loop has 2 letters. [2021-11-13 17:31:31,472 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 17:31:31,472 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-13 17:31:31,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:31:31,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:31:31,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 17:31:31,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:31:31,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:31:31,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-13 17:31:31,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:31:31,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:31:31,557 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 [2021-11-13 17:31:31,558 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2021-11-13 17:31:31,577 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 23 states and 28 transitions. Complement of second has 6 states. [2021-11-13 17:31:31,578 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 [2021-11-13 17:31:31,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2021-11-13 17:31:31,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2021-11-13 17:31:31,581 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 14 letters. Loop has 2 letters. [2021-11-13 17:31:31,582 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 17:31:31,582 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 16 letters. Loop has 2 letters. [2021-11-13 17:31:31,582 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 17:31:31,582 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 14 letters. Loop has 4 letters. [2021-11-13 17:31:31,583 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 17:31:31,583 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 28 transitions. [2021-11-13 17:31:31,586 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-13 17:31:31,586 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2021-11-13 17:31:31,586 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-13 17:31:31,586 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-13 17:31:31,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-13 17:31:31,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 17:31:31,586 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 17:31:31,587 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 17:31:31,587 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 17:31:31,587 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-11-13 17:31:31,587 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-13 17:31:31,587 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-13 17:31:31,587 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-13 17:31:31,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 05:31:31 BoogieIcfgContainer [2021-11-13 17:31:31,595 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-13 17:31:31,596 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 17:31:31,596 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 17:31:31,596 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 17:31:31,597 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:31:25" (3/4) ... [2021-11-13 17:31:31,600 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-13 17:31:31,600 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 17:31:31,601 INFO L158 Benchmark]: Toolchain (without parser) took 7655.53ms. Allocated memory was 98.6MB in the beginning and 123.7MB in the end (delta: 25.2MB). Free memory was 65.9MB in the beginning and 42.1MB in the end (delta: 23.8MB). Peak memory consumption was 50.9MB. Max. memory is 16.1GB. [2021-11-13 17:31:31,602 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 81.8MB. Free memory was 47.2MB in the beginning and 47.1MB in the end (delta: 49.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 17:31:31,603 INFO L158 Benchmark]: CACSL2BoogieTranslator took 589.10ms. Allocated memory is still 98.6MB. Free memory was 65.8MB in the beginning and 48.9MB in the end (delta: 16.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-13 17:31:31,603 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.53ms. Allocated memory is still 98.6MB. Free memory was 48.9MB in the beginning and 47.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 17:31:31,603 INFO L158 Benchmark]: Boogie Preprocessor took 46.65ms. Allocated memory is still 98.6MB. Free memory was 47.0MB in the beginning and 45.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 17:31:31,604 INFO L158 Benchmark]: RCFGBuilder took 434.90ms. Allocated memory is still 98.6MB. Free memory was 45.8MB in the beginning and 74.2MB in the end (delta: -28.3MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2021-11-13 17:31:31,604 INFO L158 Benchmark]: BuchiAutomizer took 6492.46ms. Allocated memory was 98.6MB in the beginning and 123.7MB in the end (delta: 25.2MB). Free memory was 73.8MB in the beginning and 43.1MB in the end (delta: 30.7MB). Peak memory consumption was 56.1MB. Max. memory is 16.1GB. [2021-11-13 17:31:31,605 INFO L158 Benchmark]: Witness Printer took 4.20ms. Allocated memory is still 123.7MB. Free memory was 43.1MB in the beginning and 42.1MB in the end (delta: 992.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 17:31:31,607 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 81.8MB. Free memory was 47.2MB in the beginning and 47.1MB in the end (delta: 49.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 589.10ms. Allocated memory is still 98.6MB. Free memory was 65.8MB in the beginning and 48.9MB in the end (delta: 16.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.53ms. Allocated memory is still 98.6MB. Free memory was 48.9MB in the beginning and 47.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 46.65ms. Allocated memory is still 98.6MB. Free memory was 47.0MB in the beginning and 45.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 434.90ms. Allocated memory is still 98.6MB. Free memory was 45.8MB in the beginning and 74.2MB in the end (delta: -28.3MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 6492.46ms. Allocated memory was 98.6MB in the beginning and 123.7MB in the end (delta: 25.2MB). Free memory was 73.8MB in the beginning and 43.1MB in the end (delta: 30.7MB). Peak memory consumption was 56.1MB. Max. memory is 16.1GB. * Witness Printer took 4.20ms. Allocated memory is still 123.7MB. Free memory was 43.1MB in the beginning and 42.1MB in the end (delta: 992.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -4 * i + unknown-#length-unknown[arr] + -1 * arr and consists of 5 locations. One deterministic module has affine ranking function -1 * j + length and consists of 3 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 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.4s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 5.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 3. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 114 SdHoareTripleChecker+Valid, 140.01ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 109 mSDsluCounter, 129 SdHoareTripleChecker+Invalid, 112.20ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 51 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 108 IncrementalHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 78 mSDtfsCounter, 108 mSolverCounterSat, 8.47ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital125 mio100 ax100 hnf100 lsp95 ukn75 mio100 lsp58 div100 bol100 ite100 ukn100 eq162 hnf91 smp95 dnf100 smp100 tf100 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 53ms VariablesStem: 1 VariablesLoop: 0 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! [2021-11-13 17:31:31,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-11-13 17:31:31,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-13 17:31:32,051 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b5565ab-95f7-4651-9b89-f4208b5a31be/bin/uautomizer-YU5uOKAj3y/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