./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/PastaA10.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/PastaA10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3 --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 eb84f41e050e85d4fc46b55b68b36040bcbf2911 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 19:53:52,523 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:53:52,528 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:53:52,608 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:53:52,609 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:53:52,615 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:53:52,618 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:53:52,624 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:53:52,628 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:53:52,637 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:53:52,638 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:53:52,640 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:53:52,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:53:52,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:53:52,648 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:53:52,655 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:53:52,657 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:53:52,658 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:53:52,663 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:53:52,668 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:53:52,676 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:53:52,678 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:53:52,682 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:53:52,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:53:52,692 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:53:52,693 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:53:52,693 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:53:52,696 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:53:52,697 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:53:52,699 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:53:52,699 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:53:52,700 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:53:52,703 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:53:52,704 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:53:52,706 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:53:52,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:53:52,708 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:53:52,708 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:53:52,708 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:53:52,710 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:53:52,710 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:53:52,712 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-15 19:53:52,776 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:53:52,777 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:53:52,777 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:53:52,778 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:53:52,779 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:53:52,779 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:53:52,779 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:53:52,780 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-15 19:53:52,780 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-15 19:53:52,780 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-15 19:53:52,781 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-15 19:53:52,781 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-15 19:53:52,781 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-15 19:53:52,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:53:52,782 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-15 19:53:52,782 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:53:52,782 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:53:52,783 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-15 19:53:52,783 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-15 19:53:52,783 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-15 19:53:52,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:53:52,784 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-15 19:53:52,784 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:53:52,784 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-15 19:53:52,785 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:53:52,785 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:53:52,785 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:53:52,785 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 19:53:52,786 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:53:52,787 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-15 19:53:52,787 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_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb84f41e050e85d4fc46b55b68b36040bcbf2911 [2021-10-15 19:53:53,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:53:53,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:53:53,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:53:53,144 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:53:53,145 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:53:53,146 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/termination-restricted-15/PastaA10.c [2021-10-15 19:53:53,236 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/data/a94660cd4/a49342cc74ad4dddaa8a7687932dcbcd/FLAG2057becc0 [2021-10-15 19:53:53,758 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:53:53,758 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/sv-benchmarks/c/termination-restricted-15/PastaA10.c [2021-10-15 19:53:53,773 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/data/a94660cd4/a49342cc74ad4dddaa8a7687932dcbcd/FLAG2057becc0 [2021-10-15 19:53:54,101 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/data/a94660cd4/a49342cc74ad4dddaa8a7687932dcbcd [2021-10-15 19:53:54,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:53:54,105 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:53:54,107 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:53:54,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:53:54,112 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:53:54,112 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:53:54" (1/1) ... [2021-10-15 19:53:54,114 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f60f278 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:53:54, skipping insertion in model container [2021-10-15 19:53:54,114 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:53:54" (1/1) ... [2021-10-15 19:53:54,123 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:53:54,137 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:53:54,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:53:54,352 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:53:54,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:53:54,382 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:53:54,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:53:54 WrapperNode [2021-10-15 19:53:54,383 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:53:54,385 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:53:54,385 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:53:54,385 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:53:54,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:53:54" (1/1) ... [2021-10-15 19:53:54,400 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:53:54" (1/1) ... [2021-10-15 19:53:54,416 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:53:54,417 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:53:54,417 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:53:54,417 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:53:54,425 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:53:54" (1/1) ... [2021-10-15 19:53:54,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:53:54" (1/1) ... [2021-10-15 19:53:54,426 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:53:54" (1/1) ... [2021-10-15 19:53:54,426 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:53:54" (1/1) ... [2021-10-15 19:53:54,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:53:54" (1/1) ... [2021-10-15 19:53:54,433 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:53:54" (1/1) ... [2021-10-15 19:53:54,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:53:54" (1/1) ... [2021-10-15 19:53:54,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:53:54,436 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:53:54,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:53:54,437 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:53:54,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:53:54" (1/1) ... [2021-10-15 19:53:54,447 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:53:54,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:53:54,493 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:53:54,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-15 19:53:54,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:53:54,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:53:54,694 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:53:54,694 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-15 19:53:54,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:53:54 BoogieIcfgContainer [2021-10-15 19:53:54,697 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:53:54,698 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-15 19:53:54,699 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-15 19:53:54,703 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-15 19:53:54,704 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:53:54,704 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.10 07:53:54" (1/3) ... [2021-10-15 19:53:54,706 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52625595 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 07:53:54, skipping insertion in model container [2021-10-15 19:53:54,706 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:53:54,707 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:53:54" (2/3) ... [2021-10-15 19:53:54,707 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52625595 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 07:53:54, skipping insertion in model container [2021-10-15 19:53:54,707 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:53:54,708 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:53:54" (3/3) ... [2021-10-15 19:53:54,709 INFO L389 chiAutomizerObserver]: Analyzing ICFG PastaA10.c [2021-10-15 19:53:54,770 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-15 19:53:54,770 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-15 19:53:54,770 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-15 19:53:54,771 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-15 19:53:54,771 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-15 19:53:54,771 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-15 19:53:54,771 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-15 19:53:54,772 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-15 19:53:54,794 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:53:54,821 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-15 19:53:54,821 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:53:54,822 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:53:54,829 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-15 19:53:54,829 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-15 19:53:54,829 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-15 19:53:54,830 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:53:54,832 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-15 19:53:54,832 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:53:54,832 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:53:54,833 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-15 19:53:54,833 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-15 19:53:54,841 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 3#L12-2true [2021-10-15 19:53:54,842 INFO L793 eck$LassoCheckResult]: Loop: 3#L12-2true assume !!(main_~x~0 != main_~y~0); 8#L12true assume main_~x~0 > main_~y~0;main_~y~0 := 1 + main_~y~0; 3#L12-2true [2021-10-15 19:53:54,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:53:54,852 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-15 19:53:54,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:53:54,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502613626] [2021-10-15 19:53:54,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:53:54,869 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:53:54,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:53:54,976 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:53:54,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:53:55,006 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:53:55,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:53:55,010 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2021-10-15 19:53:55,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:53:55,011 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326505709] [2021-10-15 19:53:55,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:53:55,012 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:53:55,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:53:55,033 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:53:55,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:53:55,050 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:53:55,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:53:55,052 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2021-10-15 19:53:55,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:53:55,053 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898045245] [2021-10-15 19:53:55,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:53:55,053 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:53:55,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:53:55,068 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:53:55,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:53:55,087 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:53:55,151 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 19:53:55,151 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 19:53:55,151 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 19:53:55,152 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 19:53:55,152 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-15 19:53:55,152 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:53:55,152 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 19:53:55,152 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 19:53:55,152 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA10.c_Iteration1_Loop [2021-10-15 19:53:55,152 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 19:53:55,153 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 19:53:55,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:53:55,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:53:55,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:53:55,286 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 19:53:55,300 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-15 19:53:55,303 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:53:55,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:53:55,316 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:53:55,321 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 19:53:55,321 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 19:53:55,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-15 19:53:55,346 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-15 19:53:55,346 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-15 19:53:55,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-15 19:53:55,370 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:53:55,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:53:55,371 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:53:55,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-15 19:53:55,382 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 19:53:55,382 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 19:53:55,403 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-15 19:53:55,403 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-15 19:53:55,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-15 19:53:55,434 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:53:55,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:53:55,435 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:53:55,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-15 19:53:55,437 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 19:53:55,447 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 19:53:55,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-15 19:53:55,527 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:53:55,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:53:55,529 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:53:55,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-15 19:53:55,534 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-15 19:53:55,535 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 19:53:55,736 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-15 19:53:55,742 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-10-15 19:53:55,743 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 19:53:55,743 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 19:53:55,743 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 19:53:55,743 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 19:53:55,743 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 19:53:55,743 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:53:55,744 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 19:53:55,744 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 19:53:55,744 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA10.c_Iteration1_Loop [2021-10-15 19:53:55,744 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 19:53:55,744 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 19:53:55,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:53:55,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:53:55,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:53:55,813 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 19:53:55,818 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 19:53:55,820 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:53:55,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:53:55,821 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:53:55,833 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 19:53:55,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-15 19:53:55,842 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:53:55,842 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:53:55,843 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:53:55,843 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:53:55,849 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:53:55,850 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:53:55,866 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:53:55,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-15 19:53:55,913 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:53:55,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:53:55,915 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:53:55,920 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 19:53:55,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-15 19:53:55,929 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:53:55,929 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:53:55,930 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:53:55,930 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:53:55,934 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:53:55,935 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:53:55,968 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:53:55,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-15 19:53:56,000 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:53:56,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:53:56,001 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:53:56,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-15 19:53:56,004 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 19:53:56,014 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:53:56,014 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:53:56,015 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:53:56,015 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:53:56,015 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:53:56,017 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:53:56,017 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:53:56,020 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-15 19:53:56,027 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-15 19:53:56,027 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-15 19:53:56,029 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:53:56,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:53:56,036 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:53:56,065 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-15 19:53:56,065 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-15 19:53:56,065 INFO L513 LassoAnalysis]: Proved termination. [2021-10-15 19:53:56,066 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~x~0 - 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-15 19:53:56,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-15 19:53:56,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-15 19:53:56,115 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-15 19:53:56,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:53:56,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:53:56,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-15 19:53:56,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:53:56,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:53:56,176 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-15 19:53:56,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:53:56,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:53:56,215 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-15 19:53:56,219 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:53:56,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-15 19:53:56,331 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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 30 transitions. Complement of second has 6 states. [2021-10-15 19:53:56,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-15 19:53:56,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:53:56,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2021-10-15 19:53:56,336 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2021-10-15 19:53:56,337 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:53:56,337 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-15 19:53:56,338 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:53:56,338 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2021-10-15 19:53:56,338 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:53:56,339 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2021-10-15 19:53:56,345 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-15 19:53:56,348 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2021-10-15 19:53:56,349 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-10-15 19:53:56,349 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-10-15 19:53:56,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2021-10-15 19:53:56,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-15 19:53:56,350 INFO L681 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-15 19:53:56,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2021-10-15 19:53:56,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-10-15 19:53:56,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) 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) [2021-10-15 19:53:56,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2021-10-15 19:53:56,373 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-15 19:53:56,373 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-15 19:53:56,373 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-15 19:53:56,373 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2021-10-15 19:53:56,374 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-15 19:53:56,374 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:53:56,374 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:53:56,374 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-15 19:53:56,374 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-15 19:53:56,374 INFO L791 eck$LassoCheckResult]: Stem: 68#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 69#L12-2 assume !!(main_~x~0 != main_~y~0); 67#L12 assume !(main_~x~0 > main_~y~0);main_~x~0 := 1 + main_~x~0; 63#L12-2 [2021-10-15 19:53:56,375 INFO L793 eck$LassoCheckResult]: Loop: 63#L12-2 assume !!(main_~x~0 != main_~y~0); 64#L12 assume main_~x~0 > main_~y~0;main_~y~0 := 1 + main_~y~0; 63#L12-2 [2021-10-15 19:53:56,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:53:56,375 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2021-10-15 19:53:56,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:53:56,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311334427] [2021-10-15 19:53:56,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:53:56,376 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:53:56,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:53:56,383 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:53:56,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:53:56,389 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:53:56,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:53:56,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2021-10-15 19:53:56,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:53:56,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838386111] [2021-10-15 19:53:56,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:53:56,391 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:53:56,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:53:56,396 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:53:56,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:53:56,401 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:53:56,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:53:56,402 INFO L82 PathProgramCache]: Analyzing trace with hash 29865320, now seen corresponding path program 1 times [2021-10-15 19:53:56,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:53:56,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738944007] [2021-10-15 19:53:56,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:53:56,403 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:53:56,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:53:56,460 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:53:56,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:53:56,460 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738944007] [2021-10-15 19:53:56,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738944007] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:53:56,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734013985] [2021-10-15 19:53:56,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:53:56,462 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:53:56,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:53:56,466 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:53:56,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-15 19:53:56,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:53:56,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-15 19:53:56,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:53:56,587 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:53:56,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734013985] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:53:56,587 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 19:53:56,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-10-15 19:53:56,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243001841] [2021-10-15 19:53:56,614 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 19:53:56,614 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 19:53:56,615 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 19:53:56,615 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 19:53:56,615 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-15 19:53:56,615 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:53:56,615 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 19:53:56,615 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 19:53:56,615 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA10.c_Iteration2_Loop [2021-10-15 19:53:56,616 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 19:53:56,616 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 19:53:56,617 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:53:56,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:53:56,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:53:56,670 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 19:53:56,670 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-15 19:53:56,670 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:53:56,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:53:56,672 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:53:56,679 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 19:53:56,679 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 19:53:56,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-15 19:53:56,712 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-15 19:53:56,713 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-15 19:53:56,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-15 19:53:56,755 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:53:56,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:53:56,756 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:53:56,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-15 19:53:56,765 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 19:53:56,765 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 19:53:56,820 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-10-15 19:53:56,821 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:53:56,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:53:56,822 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:53:56,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-15 19:53:56,827 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-15 19:53:56,827 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 19:53:56,984 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-15 19:53:56,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-15 19:53:56,988 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 19:53:56,988 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 19:53:56,988 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 19:53:56,988 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 19:53:56,989 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 19:53:56,989 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:53:56,989 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 19:53:56,989 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 19:53:56,989 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA10.c_Iteration2_Loop [2021-10-15 19:53:56,989 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 19:53:56,989 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 19:53:56,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:53:57,008 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:53:57,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:53:57,062 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 19:53:57,062 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 19:53:57,062 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:53:57,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:53:57,069 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:53:57,076 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 19:53:57,085 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:53:57,086 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:53:57,086 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:53:57,086 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:53:57,086 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:53:57,089 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:53:57,090 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:53:57,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-15 19:53:57,108 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-15 19:53:57,113 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-15 19:53:57,113 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-15 19:53:57,114 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:53:57,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:53:57,116 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:53:57,122 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-15 19:53:57,123 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-15 19:53:57,123 INFO L513 LassoAnalysis]: Proved termination. [2021-10-15 19:53:57,123 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-10-15 19:53:57,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-15 19:53:57,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-15 19:53:57,165 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-15 19:53:57,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:53:57,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:53:57,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-15 19:53:57,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:53:57,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:53:57,204 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-15 19:53:57,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:53:57,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:53:57,230 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-15 19:53:57,231 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:53:57,247 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 16 transitions. Complement of second has 5 states. [2021-10-15 19:53:57,248 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 [2021-10-15 19:53:57,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:53:57,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-15 19:53:57,249 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-15 19:53:57,249 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:53:57,249 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-15 19:53:57,250 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:53:57,250 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2021-10-15 19:53:57,250 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:53:57,250 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2021-10-15 19:53:57,252 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-15 19:53:57,256 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2021-10-15 19:53:57,256 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-15 19:53:57,256 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-15 19:53:57,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2021-10-15 19:53:57,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-15 19:53:57,258 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2021-10-15 19:53:57,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2021-10-15 19:53:57,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-15 19:53:57,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 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) [2021-10-15 19:53:57,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2021-10-15 19:53:57,265 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2021-10-15 19:53:57,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:53:57,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-15 19:53:57,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-15 19:53:57,270 INFO L87 Difference]: Start difference. First operand 11 states and 16 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:53:57,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:53:57,309 INFO L93 Difference]: Finished difference Result 10 states and 12 transitions. [2021-10-15 19:53:57,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-15 19:53:57,310 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 12 transitions. [2021-10-15 19:53:57,311 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-15 19:53:57,312 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 9 states and 11 transitions. [2021-10-15 19:53:57,312 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-15 19:53:57,312 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-15 19:53:57,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 11 transitions. [2021-10-15 19:53:57,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-15 19:53:57,312 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2021-10-15 19:53:57,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 11 transitions. [2021-10-15 19:53:57,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 6. [2021-10-15 19:53:57,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:53:57,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2021-10-15 19:53:57,314 INFO L704 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2021-10-15 19:53:57,314 INFO L587 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2021-10-15 19:53:57,314 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-15 19:53:57,314 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2021-10-15 19:53:57,315 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-15 19:53:57,315 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:53:57,315 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:53:57,315 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-15 19:53:57,315 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-15 19:53:57,316 INFO L791 eck$LassoCheckResult]: Stem: 157#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 158#L12-2 assume !!(main_~x~0 != main_~y~0); 154#L12 [2021-10-15 19:53:57,316 INFO L793 eck$LassoCheckResult]: Loop: 154#L12 assume !(main_~x~0 > main_~y~0);main_~x~0 := 1 + main_~x~0; 153#L12-2 assume !!(main_~x~0 != main_~y~0); 154#L12 [2021-10-15 19:53:57,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:53:57,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-10-15 19:53:57,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:53:57,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498623006] [2021-10-15 19:53:57,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:53:57,317 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:53:57,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:53:57,322 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:53:57,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:53:57,326 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:53:57,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:53:57,327 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 1 times [2021-10-15 19:53:57,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:53:57,328 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842595435] [2021-10-15 19:53:57,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:53:57,328 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:53:57,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:53:57,333 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:53:57,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:53:57,338 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:53:57,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:53:57,339 INFO L82 PathProgramCache]: Analyzing trace with hash 963397, now seen corresponding path program 2 times [2021-10-15 19:53:57,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:53:57,339 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054233166] [2021-10-15 19:53:57,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:53:57,340 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:53:57,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:53:57,346 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:53:57,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:53:57,352 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:53:57,374 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 19:53:57,374 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 19:53:57,374 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 19:53:57,374 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 19:53:57,374 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-15 19:53:57,375 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:53:57,375 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 19:53:57,375 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 19:53:57,375 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA10.c_Iteration3_Loop [2021-10-15 19:53:57,375 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 19:53:57,375 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 19:53:57,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:53:57,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:53:57,388 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:53:57,457 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 19:53:57,457 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-15 19:53:57,458 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:53:57,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:53:57,459 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:53:57,467 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 19:53:57,467 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 19:53:57,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-15 19:53:57,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-15 19:53:57,552 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:53:57,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:53:57,557 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:53:57,561 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-15 19:53:57,561 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 19:53:57,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-15 19:54:01,398 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-15 19:54:01,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-15 19:54:01,401 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 19:54:01,402 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 19:54:01,402 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 19:54:01,402 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 19:54:01,402 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 19:54:01,402 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:54:01,402 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 19:54:01,402 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 19:54:01,402 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA10.c_Iteration3_Loop [2021-10-15 19:54:01,402 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 19:54:01,402 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 19:54:01,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:54:01,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:54:01,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:54:01,533 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 19:54:01,534 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 19:54:01,535 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:54:01,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:54:01,549 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:54:01,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-10-15 19:54:01,573 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 19:54:01,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:54:01,584 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:54:01,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:54:01,584 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-15 19:54:01,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:54:01,589 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 19:54:01,589 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:54:01,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-15 19:54:01,608 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-15 19:54:01,613 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-15 19:54:01,613 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-15 19:54:01,613 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:54:01,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:54:01,616 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:54:01,624 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-15 19:54:01,624 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-15 19:54:01,624 INFO L513 LassoAnalysis]: Proved termination. [2021-10-15 19:54:01,624 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~y~0 - 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2021-10-15 19:54:01,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-15 19:54:01,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-15 19:54:01,666 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-15 19:54:01,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:54:01,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:54:01,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-15 19:54:01,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:54:01,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:54:01,701 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-15 19:54:01,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:54:01,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:54:01,749 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 [2021-10-15 19:54:01,750 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:54:01,767 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 13 transitions. Complement of second has 5 states. [2021-10-15 19:54:01,768 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 [2021-10-15 19:54:01,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:54:01,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-10-15 19:54:01,769 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-15 19:54:01,769 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:54:01,769 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-15 19:54:01,769 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:54:01,770 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-15 19:54:01,770 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:54:01,770 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2021-10-15 19:54:01,773 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-15 19:54:01,777 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 7 states and 8 transitions. [2021-10-15 19:54:01,777 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-10-15 19:54:01,778 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2021-10-15 19:54:01,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2021-10-15 19:54:01,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-15 19:54:01,778 INFO L681 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2021-10-15 19:54:01,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2021-10-15 19:54:01,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2021-10-15 19:54:01,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 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) [2021-10-15 19:54:01,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2021-10-15 19:54:01,782 INFO L704 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2021-10-15 19:54:01,782 INFO L587 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2021-10-15 19:54:01,783 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-15 19:54:01,783 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2021-10-15 19:54:01,785 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-15 19:54:01,785 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:54:01,785 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:54:01,785 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2021-10-15 19:54:01,786 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-15 19:54:01,786 INFO L791 eck$LassoCheckResult]: Stem: 207#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 203#L12-2 assume !!(main_~x~0 != main_~y~0); 204#L12 assume main_~x~0 > main_~y~0;main_~y~0 := 1 + main_~y~0; 205#L12-2 assume !!(main_~x~0 != main_~y~0); 206#L12 [2021-10-15 19:54:01,787 INFO L793 eck$LassoCheckResult]: Loop: 206#L12 assume !(main_~x~0 > main_~y~0);main_~x~0 := 1 + main_~x~0; 208#L12-2 assume !!(main_~x~0 != main_~y~0); 206#L12 [2021-10-15 19:54:01,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:54:01,787 INFO L82 PathProgramCache]: Analyzing trace with hash 963335, now seen corresponding path program 2 times [2021-10-15 19:54:01,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:54:01,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744126110] [2021-10-15 19:54:01,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:54:01,788 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:54:01,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:54:01,801 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:54:01,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:54:01,808 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:54:01,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:54:01,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 2 times [2021-10-15 19:54:01,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:54:01,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582287395] [2021-10-15 19:54:01,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:54:01,810 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:54:01,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:54:01,814 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:54:01,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:54:01,820 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:54:01,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:54:01,820 INFO L82 PathProgramCache]: Analyzing trace with hash 925765410, now seen corresponding path program 2 times [2021-10-15 19:54:01,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:54:01,821 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640397980] [2021-10-15 19:54:01,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:54:01,822 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:54:01,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:54:01,859 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:54:01,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:54:01,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640397980] [2021-10-15 19:54:01,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640397980] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:54:01,860 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:54:01,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-15 19:54:01,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618476887] [2021-10-15 19:54:01,881 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 19:54:01,882 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 19:54:01,882 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 19:54:01,882 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 19:54:01,882 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-15 19:54:01,882 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:54:01,882 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 19:54:01,883 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 19:54:01,883 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA10.c_Iteration4_Loop [2021-10-15 19:54:01,883 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 19:54:01,883 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 19:54:01,884 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:54:01,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:54:01,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:54:01,974 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 19:54:01,980 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-15 19:54:01,980 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:54:01,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:54:01,984 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:54:01,998 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 19:54:01,998 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 19:54:02,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-15 19:54:02,033 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-15 19:54:02,033 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-15 19:54:02,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-15 19:54:02,075 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:54:02,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:54:02,081 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:54:02,088 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 19:54:02,088 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 19:54:02,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-15 19:54:02,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-15 19:54:02,193 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:54:02,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:54:02,194 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:54:02,202 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-15 19:54:02,202 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 19:54:02,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-15 19:54:06,003 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-15 19:54:06,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-15 19:54:06,006 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 19:54:06,006 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 19:54:06,006 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 19:54:06,007 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 19:54:06,007 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 19:54:06,007 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:54:06,007 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 19:54:06,007 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 19:54:06,007 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaA10.c_Iteration4_Loop [2021-10-15 19:54:06,007 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 19:54:06,007 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 19:54:06,008 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:54:06,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:54:06,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:54:06,096 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 19:54:06,097 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 19:54:06,097 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:54:06,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:54:06,098 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:54:06,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-15 19:54:06,110 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 19:54:06,121 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:54:06,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:54:06,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:54:06,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:54:06,147 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 19:54:06,148 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-15 19:54:06,167 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:54:06,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-15 19:54:06,241 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:54:06,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:54:06,243 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:54:06,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-15 19:54:06,244 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 19:54:06,253 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:54:06,253 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:54:06,253 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:54:06,253 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-15 19:54:06,253 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:54:06,256 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 19:54:06,256 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:54:06,260 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-15 19:54:06,265 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-15 19:54:06,265 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-15 19:54:06,265 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:54:06,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:54:06,266 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:54:06,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-15 19:54:06,268 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-15 19:54:06,268 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-15 19:54:06,268 INFO L513 LassoAnalysis]: Proved termination. [2021-10-15 19:54:06,268 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~y~0 - 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2021-10-15 19:54:06,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-15 19:54:06,298 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-15 19:54:06,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:54:06,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:54:06,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-15 19:54:06,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:54:06,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:54:06,358 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-15 19:54:06,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:54:06,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:54:06,410 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 [2021-10-15 19:54:06,410 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:54:06,423 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 7 states and 8 transitions. Complement of second has 3 states. [2021-10-15 19:54:06,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2021-10-15 19:54:06,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:54:06,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2 transitions. [2021-10-15 19:54:06,425 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 2 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-15 19:54:06,425 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:54:06,425 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-15 19:54:06,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:54:06,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:54:06,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-15 19:54:06,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:54:06,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:54:06,469 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-15 19:54:06,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:54:06,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:54:06,517 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 [2021-10-15 19:54:06,517 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:54:06,526 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 7 states and 8 transitions. Complement of second has 3 states. [2021-10-15 19:54:06,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2021-10-15 19:54:06,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:54:06,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2 transitions. [2021-10-15 19:54:06,528 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 2 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-15 19:54:06,528 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:54:06,528 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-15 19:54:06,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:54:06,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:54:06,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-15 19:54:06,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:54:06,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:54:06,562 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-15 19:54:06,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:54:06,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:54:06,600 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 [2021-10-15 19:54:06,600 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:54:06,617 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 8 states and 9 transitions. Complement of second has 4 states. [2021-10-15 19:54:06,618 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 [2021-10-15 19:54:06,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:54:06,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2021-10-15 19:54:06,619 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-15 19:54:06,620 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:54:06,620 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2021-10-15 19:54:06,620 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:54:06,620 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 4 letters. [2021-10-15 19:54:06,621 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:54:06,621 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2021-10-15 19:54:06,622 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-15 19:54:06,622 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 0 states and 0 transitions. [2021-10-15 19:54:06,622 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-15 19:54:06,622 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-15 19:54:06,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-15 19:54:06,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:54:06,623 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 19:54:06,623 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 19:54:06,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:54:06,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-15 19:54:06,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-15 19:54:06,624 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:54:06,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:54:06,625 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-10-15 19:54:06,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-15 19:54:06,625 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-10-15 19:54:06,625 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-15 19:54:06,626 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-10-15 19:54:06,626 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-15 19:54:06,626 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-15 19:54:06,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-15 19:54:06,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:54:06,627 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 19:54:06,627 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 19:54:06,627 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 19:54:06,627 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-15 19:54:06,627 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-15 19:54:06,627 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-15 19:54:06,627 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-15 19:54:06,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.10 07:54:06 BoogieIcfgContainer [2021-10-15 19:54:06,635 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-15 19:54:06,636 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:54:06,636 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:54:06,636 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:54:06,637 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:53:54" (3/4) ... [2021-10-15 19:54:06,640 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-15 19:54:06,641 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:54:06,643 INFO L168 Benchmark]: Toolchain (without parser) took 12535.97 ms. Allocated memory was 81.8 MB in the beginning and 102.8 MB in the end (delta: 21.0 MB). Free memory was 43.6 MB in the beginning and 37.9 MB in the end (delta: 5.7 MB). Peak memory consumption was 29.0 MB. Max. memory is 16.1 GB. [2021-10-15 19:54:06,644 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 81.8 MB. Free memory was 59.5 MB in the beginning and 59.4 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:54:06,654 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.59 ms. Allocated memory was 81.8 MB in the beginning and 102.8 MB in the end (delta: 21.0 MB). Free memory was 43.3 MB in the beginning and 78.4 MB in the end (delta: -35.1 MB). Peak memory consumption was 8.3 MB. Max. memory is 16.1 GB. [2021-10-15 19:54:06,656 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.80 ms. Allocated memory is still 102.8 MB. Free memory was 78.4 MB in the beginning and 77.3 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:54:06,657 INFO L168 Benchmark]: Boogie Preprocessor took 18.36 ms. Allocated memory is still 102.8 MB. Free memory was 77.3 MB in the beginning and 76.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:54:06,658 INFO L168 Benchmark]: RCFGBuilder took 260.73 ms. Allocated memory is still 102.8 MB. Free memory was 76.3 MB in the beginning and 68.9 MB in the end (delta: 7.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-15 19:54:06,659 INFO L168 Benchmark]: BuchiAutomizer took 11936.64 ms. Allocated memory is still 102.8 MB. Free memory was 68.4 MB in the beginning and 37.9 MB in the end (delta: 30.5 MB). Peak memory consumption was 33.3 MB. Max. memory is 16.1 GB. [2021-10-15 19:54:06,659 INFO L168 Benchmark]: Witness Printer took 4.77 ms. Allocated memory is still 102.8 MB. Free memory is still 37.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:54:06,664 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 81.8 MB. Free memory was 59.5 MB in the beginning and 59.4 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 276.59 ms. Allocated memory was 81.8 MB in the beginning and 102.8 MB in the end (delta: 21.0 MB). Free memory was 43.3 MB in the beginning and 78.4 MB in the end (delta: -35.1 MB). Peak memory consumption was 8.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.80 ms. Allocated memory is still 102.8 MB. Free memory was 78.4 MB in the beginning and 77.3 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.36 ms. Allocated memory is still 102.8 MB. Free memory was 77.3 MB in the beginning and 76.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 260.73 ms. Allocated memory is still 102.8 MB. Free memory was 76.3 MB in the beginning and 68.9 MB in the end (delta: 7.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 11936.64 ms. Allocated memory is still 102.8 MB. Free memory was 68.4 MB in the beginning and 37.9 MB in the end (delta: 30.5 MB). Peak memory consumption was 33.3 MB. Max. memory is 16.1 GB. * Witness Printer took 4.77 ms. Allocated memory is still 102.8 MB. Free memory is still 37.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (2 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x + -1 * y and consists of 4 locations. One deterministic module has affine ranking function x + -1 * y and consists of 3 locations. One deterministic module has affine ranking function 2 * y + -2 * x + 1 and consists of 3 locations. One nondeterministic module has affine ranking function 2 * y + -2 * x + 1 and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 11.8s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 10.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 21.4ms AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 20 SDtfs, 18 SDslu, 3 SDs, 0 SdLazy, 42 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 80.3ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax202 hnf100 lsp49 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq165 hnf94 smp100 dnf132 smp89 tf110 neg96 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 47ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 8.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-15 19:54:06,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-15 19:54:06,922 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-10-15 19:54:07,121 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-10-15 19:54:07,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c73ce172-4945-45e1-a676-8cc5a043412a/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...