./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD --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 024b54dcc71a4cff37fb88a3019598a20adbf40036f66c2a7f758cfecaaffadc ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:58:36,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:58:36,634 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:58:36,696 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:58:36,697 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:58:36,699 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:58:36,701 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:58:36,705 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:58:36,707 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:58:36,709 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:58:36,710 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:58:36,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:58:36,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:58:36,715 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:58:36,717 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:58:36,719 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:58:36,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:58:36,722 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:58:36,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:58:36,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:58:36,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:58:36,733 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:58:36,735 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:58:36,736 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:58:36,741 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:58:36,742 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:58:36,743 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:58:36,744 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:58:36,745 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:58:36,747 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:58:36,748 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:58:36,749 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:58:36,750 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:58:36,751 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:58:36,753 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:58:36,753 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:58:36,754 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:58:36,755 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:58:36,755 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:58:36,756 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:58:36,757 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:58:36,758 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 23:58:36,788 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:58:36,789 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:58:36,789 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:58:36,789 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:58:36,791 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:58:36,791 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:58:36,791 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:58:36,792 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:58:36,792 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:58:36,792 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:58:36,793 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:58:36,793 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:58:36,793 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:58:36,794 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:58:36,794 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:58:36,794 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:58:36,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:58:36,795 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:58:36,795 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:58:36,795 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:58:36,796 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:58:36,796 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:58:36,796 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:58:36,796 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:58:36,797 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:58:36,797 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:58:36,797 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:58:36,798 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:58:36,798 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:58:36,799 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:58:36,800 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_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 024b54dcc71a4cff37fb88a3019598a20adbf40036f66c2a7f758cfecaaffadc [2021-10-28 23:58:37,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:58:37,121 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:58:37,125 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:58:37,126 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:58:37,127 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:58:37,128 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise.c [2021-10-28 23:58:37,206 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/data/008d0e171/a879610582af48289b69de5a8caaa8bb/FLAGfad7c1df7 [2021-10-28 23:58:37,708 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:58:37,708 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise.c [2021-10-28 23:58:37,716 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/data/008d0e171/a879610582af48289b69de5a8caaa8bb/FLAGfad7c1df7 [2021-10-28 23:58:38,072 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/data/008d0e171/a879610582af48289b69de5a8caaa8bb [2021-10-28 23:58:38,074 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:58:38,076 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:58:38,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:58:38,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:58:38,084 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:58:38,085 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:58:38" (1/1) ... [2021-10-28 23:58:38,087 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@205a79d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:38, skipping insertion in model container [2021-10-28 23:58:38,087 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:58:38" (1/1) ... [2021-10-28 23:58:38,095 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:58:38,109 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:58:38,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:58:38,310 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:58:38,355 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:58:38,371 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:58:38,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:38 WrapperNode [2021-10-28 23:58:38,371 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:58:38,372 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:58:38,373 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:58:38,373 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:58:38,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:38" (1/1) ... [2021-10-28 23:58:38,388 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:38" (1/1) ... [2021-10-28 23:58:38,408 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:58:38,409 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:58:38,410 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:58:38,410 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:58:38,420 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:38" (1/1) ... [2021-10-28 23:58:38,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:38" (1/1) ... [2021-10-28 23:58:38,421 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:38" (1/1) ... [2021-10-28 23:58:38,421 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:38" (1/1) ... [2021-10-28 23:58:38,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:38" (1/1) ... [2021-10-28 23:58:38,428 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:38" (1/1) ... [2021-10-28 23:58:38,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:38" (1/1) ... [2021-10-28 23:58:38,431 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:58:38,432 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:58:38,432 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:58:38,433 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:58:38,434 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:38" (1/1) ... [2021-10-28 23:58:38,443 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:58:38,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:58:38,486 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:58:38,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:58:38,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:58:38,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:58:38,722 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:58:38,723 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-28 23:58:38,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:58:38 BoogieIcfgContainer [2021-10-28 23:58:38,724 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:58:38,726 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:58:38,726 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:58:38,730 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:58:38,731 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:58:38,731 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:58:38" (1/3) ... [2021-10-28 23:58:38,735 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@643f1310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:58:38, skipping insertion in model container [2021-10-28 23:58:38,735 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:58:38,735 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:58:38" (2/3) ... [2021-10-28 23:58:38,736 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@643f1310 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:58:38, skipping insertion in model container [2021-10-28 23:58:38,736 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:58:38,736 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:58:38" (3/3) ... [2021-10-28 23:58:38,738 INFO L389 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-wise.c [2021-10-28 23:58:38,792 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:58:38,793 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:58:38,793 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:58:38,793 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:58:38,793 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:58:38,793 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:58:38,794 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:58:38,794 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:58:38,809 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:58:38,826 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:58:38,826 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:58:38,827 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:58:38,832 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 23:58:38,832 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:58:38,832 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:58:38,832 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:58:38,834 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:58:38,834 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:58:38,834 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:58:38,834 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 23:58:38,835 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:58:38,842 INFO L791 eck$LassoCheckResult]: Stem: 6#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; 5#L17true assume main_~x~0 >= 0 && main_~y~0 >= 0; 3#L19-2true [2021-10-28 23:58:38,842 INFO L793 eck$LassoCheckResult]: Loop: 3#L19-2true assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 9#L19true assume main_~x~0 < main_~y~0;main_~x~0 := 1 + main_~x~0; 3#L19-2true [2021-10-28 23:58:38,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:38,849 INFO L85 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2021-10-28 23:58:38,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:38,858 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903146363] [2021-10-28 23:58:38,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:38,860 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:38,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:58:38,938 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:58:38,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:58:38,959 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:58:38,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:38,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 1 times [2021-10-28 23:58:38,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:38,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774232763] [2021-10-28 23:58:38,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:38,964 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:38,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:58:38,978 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:58:38,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:58:38,985 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:58:38,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:38,987 INFO L85 PathProgramCache]: Analyzing trace with hash 957575, now seen corresponding path program 1 times [2021-10-28 23:58:38,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:38,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856578909] [2021-10-28 23:58:38,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:38,989 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:38,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:58:38,999 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:58:39,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:58:39,014 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:58:39,109 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:58:39,110 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:58:39,110 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:58:39,110 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:58:39,110 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:58:39,110 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:58:39,110 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:58:39,111 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:58:39,111 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration1_Loop [2021-10-28 23:58:39,111 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:58:39,111 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:58:39,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:58:39,156 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:58:39,161 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:58:39,302 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:58:39,303 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:58:39,305 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:58:39,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:58:39,308 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:58:39,314 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:58:39,314 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:58:39,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 23:58:39,344 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:58:39,344 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: [] [2021-10-28 23:58:39,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:58:39,387 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:58:39,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:58:39,388 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:58:39,399 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:58:39,399 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:58:39,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 23:58:39,427 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:58:39,428 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: [] [2021-10-28 23:58:39,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:58:39,468 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:58:39,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:58:39,469 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:58:39,475 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:58:39,475 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:58:39,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 23:58:39,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:58:39,545 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:58:39,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:58:39,547 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:58:39,558 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:58:39,558 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:58:39,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 23:58:39,794 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:58:39,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:58:39,803 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:58:39,803 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:58:39,803 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:58:39,803 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:58:39,803 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:58:39,804 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:58:39,804 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:58:39,804 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:58:39,804 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration1_Loop [2021-10-28 23:58:39,804 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:58:39,804 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:58:39,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:58:39,816 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:58:39,822 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:58:39,871 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:58:39,876 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:58:39,877 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:58:39,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:58:39,878 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:58:39,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 23:58:39,907 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 [2021-10-28 23:58:39,917 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:58:39,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:58:39,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:58:39,918 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:58:39,925 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:58:39,925 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:58:39,941 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:58:39,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:58:39,983 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:58:39,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:58:39,985 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:58:39,991 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:58:40,002 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:58:40,002 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:58:40,002 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:58:40,002 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:58:40,007 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:58:40,007 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:58:40,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 23:58:40,031 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:58:40,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:58:40,066 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:58:40,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:58:40,068 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:58:40,076 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 [2021-10-28 23:58:40,086 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:58:40,086 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:58:40,086 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:58:40,087 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:58:40,087 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:58:40,088 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:58:40,088 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:58:40,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 23:58:40,105 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:58:40,110 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-28 23:58:40,111 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:58:40,112 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:58:40,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:58:40,114 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:58:40,120 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:58:40,120 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:58:40,120 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:58:40,121 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 [] [2021-10-28 23:58:40,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 23:58:40,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:58:40,168 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:58:40,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:40,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:40,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:58:40,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:58:40,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:40,222 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:58:40,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:58:40,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:40,287 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 [2021-10-28 23:58:40,288 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2021-10-28 23:58:40,382 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). 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 28 states and 35 transitions. Complement of second has 8 states. [2021-10-28 23:58:40,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 23:58:40,395 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) [2021-10-28 23:58:40,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2021-10-28 23:58:40,397 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-28 23:58:40,398 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:58:40,398 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-28 23:58:40,399 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:58:40,399 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-28 23:58:40,399 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:58:40,400 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2021-10-28 23:58:40,403 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:58:40,423 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 8 states and 11 transitions. [2021-10-28 23:58:40,424 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-10-28 23:58:40,425 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-28 23:58:40,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2021-10-28 23:58:40,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:58:40,426 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-10-28 23:58:40,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2021-10-28 23:58:40,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-10-28 23:58:40,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:58:40,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2021-10-28 23:58:40,485 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-10-28 23:58:40,485 INFO L587 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-10-28 23:58:40,486 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:58:40,486 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2021-10-28 23:58:40,486 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:58:40,487 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:58:40,487 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:58:40,487 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 23:58:40,487 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:58:40,488 INFO L791 eck$LassoCheckResult]: Stem: 83#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; 81#L17 assume main_~x~0 >= 0 && main_~y~0 >= 0; 82#L19-2 assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 80#L19 assume !(main_~x~0 < main_~y~0);main_~y~0 := 1 + main_~y~0; 76#L19-2 [2021-10-28 23:58:40,488 INFO L793 eck$LassoCheckResult]: Loop: 76#L19-2 assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 77#L19 assume main_~x~0 < main_~y~0;main_~x~0 := 1 + main_~x~0; 76#L19-2 [2021-10-28 23:58:40,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:40,489 INFO L85 PathProgramCache]: Analyzing trace with hash 957577, now seen corresponding path program 1 times [2021-10-28 23:58:40,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:40,489 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222701683] [2021-10-28 23:58:40,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:40,490 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:40,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:58:40,510 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:58:40,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:58:40,518 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:58:40,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:40,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 2 times [2021-10-28 23:58:40,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:40,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130803891] [2021-10-28 23:58:40,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:40,524 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:40,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:58:40,541 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:58:40,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:58:40,555 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:58:40,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:40,556 INFO L85 PathProgramCache]: Analyzing trace with hash 920231916, now seen corresponding path program 1 times [2021-10-28 23:58:40,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:40,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958309099] [2021-10-28 23:58:40,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:40,557 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:40,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:40,686 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:40,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:58:40,697 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958309099] [2021-10-28 23:58:40,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958309099] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:58:40,699 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:58:40,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:58:40,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956635245] [2021-10-28 23:58:40,761 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:58:40,761 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:58:40,761 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:58:40,761 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:58:40,761 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:58:40,762 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:58:40,762 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:58:40,762 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:58:40,762 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration2_Loop [2021-10-28 23:58:40,762 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:58:40,762 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:58:40,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:58:40,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:58:40,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:58:40,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:58:40,841 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:58:40,842 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:58:40,842 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:58:40,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:58:40,848 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:58:40,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 23:58:40,855 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:58:40,856 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:58:40,884 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:58:40,884 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: [] [2021-10-28 23:58:40,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:58:40,922 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:58:40,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:58:40,923 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:58:40,933 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:58:40,933 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:58:40,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 23:58:40,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:58:40,978 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:58:40,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:58:40,980 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:58:40,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 23:58:40,985 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:58:40,985 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:58:41,127 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:58:41,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 23:58:41,133 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:58:41,133 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:58:41,133 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:58:41,133 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:58:41,133 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:58:41,133 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:58:41,133 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:58:41,133 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:58:41,133 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration2_Loop [2021-10-28 23:58:41,133 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:58:41,133 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:58:41,135 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:58:41,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:58:41,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:58:41,216 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:58:41,216 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:58:41,216 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:58:41,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:58:41,223 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:58:41,230 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 [2021-10-28 23:58:41,240 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:58:41,240 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:58:41,240 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:58:41,240 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:58:41,248 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:58:41,248 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:58:41,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 23:58:41,263 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:58:41,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 23:58:41,290 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:58:41,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:58:41,291 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:58:41,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 23:58:41,293 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 [2021-10-28 23:58:41,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:58:41,301 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:58:41,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:58:41,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:58:41,301 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:58:41,305 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:58:41,305 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:58:41,333 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:58:41,338 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-28 23:58:41,338 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:58:41,338 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:58:41,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:58:41,343 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:58:41,367 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:58:41,367 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:58:41,368 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:58:41,368 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 [] [2021-10-28 23:58:41,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 23:58:41,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 23:58:41,394 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:58:41,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:41,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:41,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:58:41,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:58:41,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:41,437 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:58:41,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:58:41,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:41,476 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 [2021-10-28 23:58:41,477 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:58:41,490 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 17 transitions. Complement of second has 5 states. [2021-10-28 23:58:41,491 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 [2021-10-28 23:58:41,491 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) [2021-10-28 23:58:41,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-10-28 23:58:41,492 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-28 23:58:41,492 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:58:41,492 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2021-10-28 23:58:41,493 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:58:41,493 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2021-10-28 23:58:41,493 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:58:41,493 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2021-10-28 23:58:41,495 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:58:41,495 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2021-10-28 23:58:41,495 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-28 23:58:41,496 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-28 23:58:41,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2021-10-28 23:58:41,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:58:41,496 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2021-10-28 23:58:41,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2021-10-28 23:58:41,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-10-28 23:58:41,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:58:41,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2021-10-28 23:58:41,499 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2021-10-28 23:58:41,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:58:41,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:58:41,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:58:41,504 INFO L87 Difference]: Start difference. First operand 12 states and 17 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 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) [2021-10-28 23:58:41,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:58:41,525 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2021-10-28 23:58:41,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:58:41,525 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2021-10-28 23:58:41,526 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:58:41,527 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 10 states and 12 transitions. [2021-10-28 23:58:41,527 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-10-28 23:58:41,527 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-28 23:58:41,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 12 transitions. [2021-10-28 23:58:41,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:58:41,528 INFO L681 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-10-28 23:58:41,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 12 transitions. [2021-10-28 23:58:41,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 7. [2021-10-28 23:58:41,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) 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) [2021-10-28 23:58:41,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2021-10-28 23:58:41,530 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-28 23:58:41,530 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-28 23:58:41,530 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:58:41,530 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2021-10-28 23:58:41,531 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:58:41,531 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:58:41,531 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:58:41,532 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 23:58:41,532 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:58:41,532 INFO L791 eck$LassoCheckResult]: Stem: 167#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; 165#L17 assume main_~x~0 >= 0 && main_~y~0 >= 0; 166#L19-2 assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 162#L19 [2021-10-28 23:58:41,532 INFO L793 eck$LassoCheckResult]: Loop: 162#L19 assume !(main_~x~0 < main_~y~0);main_~y~0 := 1 + main_~y~0; 161#L19-2 assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 162#L19 [2021-10-28 23:58:41,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:41,533 INFO L85 PathProgramCache]: Analyzing trace with hash 30889, now seen corresponding path program 1 times [2021-10-28 23:58:41,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:41,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527839596] [2021-10-28 23:58:41,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:41,534 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:41,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:58:41,539 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:58:41,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:58:41,550 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:58:41,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:41,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1532, now seen corresponding path program 1 times [2021-10-28 23:58:41,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:41,552 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41508005] [2021-10-28 23:58:41,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:41,555 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:41,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:58:41,560 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:58:41,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:58:41,563 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:58:41,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:41,564 INFO L85 PathProgramCache]: Analyzing trace with hash 29684900, now seen corresponding path program 2 times [2021-10-28 23:58:41,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:41,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703359231] [2021-10-28 23:58:41,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:41,565 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:41,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:58:41,571 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:58:41,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:58:41,577 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:58:41,604 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:58:41,605 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:58:41,605 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:58:41,605 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:58:41,605 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:58:41,605 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:58:41,605 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:58:41,605 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:58:41,606 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration3_Loop [2021-10-28 23:58:41,606 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:58:41,606 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:58:41,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:58:41,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:58:41,616 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:58:41,649 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:58:41,650 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:58:41,650 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:58:41,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:58:41,655 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:58:41,659 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:58:41,659 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:58:41,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 23:58:41,678 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:58:41,678 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:58:41,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 23:58:41,717 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:58:41,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:58:41,718 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:58:41,728 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:58:41,728 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:58:41,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 23:58:41,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 23:58:41,793 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:58:41,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:58:41,794 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:58:41,804 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:58:41,804 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:58:41,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 23:58:42,097 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:58:42,102 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-10-28 23:58:42,102 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:58:42,102 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:58:42,103 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:58:42,103 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:58:42,103 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:58:42,103 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:58:42,103 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:58:42,103 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:58:42,103 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration3_Loop [2021-10-28 23:58:42,103 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:58:42,103 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:58:42,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:58:42,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:58:42,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:58:42,162 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:58:42,162 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:58:42,162 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:58:42,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:58:42,179 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:58:42,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 23:58:42,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 23:58:42,226 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 [2021-10-28 23:58:42,236 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:58:42,236 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:58:42,236 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:58:42,236 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:58:42,236 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:58:42,237 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:58:42,237 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:58:42,252 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:58:42,255 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:58:42,256 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:58:42,256 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:58:42,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:58:42,259 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:58:42,271 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:58:42,271 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:58:42,271 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:58:42,272 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 [] [2021-10-28 23:58:42,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 23:58:42,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 23:58:42,307 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:58:42,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:42,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:42,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:58:42,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:58:42,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:42,368 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:58:42,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:58:42,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:42,427 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 [2021-10-28 23:58:42,427 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 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) [2021-10-28 23:58:42,437 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. 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 12 states and 14 transitions. Complement of second has 5 states. [2021-10-28 23:58:42,437 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 [2021-10-28 23:58:42,438 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) [2021-10-28 23:58:42,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-28 23:58:42,438 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-28 23:58:42,438 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:58:42,438 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-28 23:58:42,439 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:58:42,439 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2021-10-28 23:58:42,439 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:58:42,439 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2021-10-28 23:58:42,440 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:58:42,441 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 8 states and 9 transitions. [2021-10-28 23:58:42,441 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-10-28 23:58:42,441 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-10-28 23:58:42,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 9 transitions. [2021-10-28 23:58:42,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:58:42,441 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2021-10-28 23:58:42,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 9 transitions. [2021-10-28 23:58:42,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2021-10-28 23:58:42,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 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) [2021-10-28 23:58:42,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2021-10-28 23:58:42,443 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2021-10-28 23:58:42,443 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2021-10-28 23:58:42,443 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 23:58:42,443 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2021-10-28 23:58:42,444 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:58:42,444 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:58:42,444 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:58:42,444 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2021-10-28 23:58:42,445 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:58:42,445 INFO L791 eck$LassoCheckResult]: Stem: 221#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; 220#L17 assume main_~x~0 >= 0 && main_~y~0 >= 0; 216#L19-2 assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 217#L19 assume main_~x~0 < main_~y~0;main_~x~0 := 1 + main_~x~0; 218#L19-2 assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 219#L19 [2021-10-28 23:58:42,445 INFO L793 eck$LassoCheckResult]: Loop: 219#L19 assume !(main_~x~0 < main_~y~0);main_~y~0 := 1 + main_~y~0; 222#L19-2 assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 219#L19 [2021-10-28 23:58:42,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:42,446 INFO L85 PathProgramCache]: Analyzing trace with hash 29684838, now seen corresponding path program 2 times [2021-10-28 23:58:42,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:42,446 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127027256] [2021-10-28 23:58:42,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:42,446 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:42,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:58:42,459 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:58:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:58:42,470 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:58:42,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:42,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1532, now seen corresponding path program 2 times [2021-10-28 23:58:42,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:42,473 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293518419] [2021-10-28 23:58:42,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:42,474 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:58:42,491 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:58:42,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:58:42,495 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:58:42,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:42,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1537641183, now seen corresponding path program 2 times [2021-10-28 23:58:42,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:58:42,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106138059] [2021-10-28 23:58:42,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:58:42,497 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:58:42,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:42,552 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:42,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:58:42,552 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106138059] [2021-10-28 23:58:42,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106138059] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:58:42,557 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:58:42,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:58:42,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634739152] [2021-10-28 23:58:42,581 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:58:42,581 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:58:42,581 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:58:42,581 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:58:42,581 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:58:42,581 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:58:42,582 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:58:42,582 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:58:42,582 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration4_Loop [2021-10-28 23:58:42,582 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:58:42,582 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:58:42,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:58:42,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:58:42,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:58:42,626 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:58:42,626 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:58:42,626 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:58:42,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:58:42,627 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:58:42,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 23:58:42,629 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:58:42,629 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:58:42,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 23:58:42,698 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:58:42,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:58:42,700 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:58:42,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 23:58:42,704 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:58:42,704 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:58:42,994 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:58:42,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 23:58:42,997 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:58:42,998 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:58:42,998 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:58:42,998 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:58:42,998 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:58:42,998 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:58:42,998 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:58:42,998 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:58:42,998 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise.c_Iteration4_Loop [2021-10-28 23:58:42,998 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:58:42,998 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:58:42,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:58:43,008 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:58:43,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:58:43,076 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:58:43,076 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:58:43,077 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:58:43,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:58:43,079 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:58:43,082 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:58:43,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 23:58:43,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:58:43,092 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:58:43,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:58:43,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:58:43,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:58:43,093 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:58:43,094 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:58:43,101 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:58:43,107 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-28 23:58:43,107 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:58:43,107 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:58:43,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:58:43,109 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:58:43,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 23:58:43,110 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:58:43,110 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:58:43,110 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:58:43,110 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 [] [2021-10-28 23:58:43,134 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-10-28 23:58:43,135 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:58:43,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:43,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:43,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:58:43,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:58:43,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:43,200 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:58:43,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:58:43,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:43,223 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 [2021-10-28 23:58:43,223 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:58:43,231 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 8 states and 9 transitions. Complement of second has 3 states. [2021-10-28 23:58:43,234 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 [2021-10-28 23:58:43,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:58:43,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2021-10-28 23:58:43,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-28 23:58:43,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:58:43,235 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:58:43,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:43,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:43,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:58:43,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:58:43,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:43,280 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:58:43,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:58:43,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:43,307 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 [2021-10-28 23:58:43,307 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:58:43,316 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 8 states and 9 transitions. Complement of second has 3 states. [2021-10-28 23:58:43,317 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 [2021-10-28 23:58:43,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:58:43,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2021-10-28 23:58:43,318 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-28 23:58:43,318 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:58:43,318 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:58:43,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:58:43,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:43,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:58:43,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:58:43,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:58:43,362 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:58:43,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:58:43,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:58:43,387 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 [2021-10-28 23:58:43,412 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:58:43,437 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 9 states and 10 transitions. Complement of second has 4 states. [2021-10-28 23:58:43,438 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 [2021-10-28 23:58:43,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:58:43,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2021-10-28 23:58:43,440 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-28 23:58:43,441 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:58:43,441 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2021-10-28 23:58:43,442 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:58:43,442 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 4 letters. [2021-10-28 23:58:43,442 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:58:43,443 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2021-10-28 23:58:43,444 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:58:43,444 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 0 states and 0 transitions. [2021-10-28 23:58:43,445 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 23:58:43,445 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 23:58:43,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 23:58:43,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:58:43,445 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:58:43,445 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:58:43,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:58:43,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:58:43,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:58:43,448 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 5 states, 5 states have (on average 1.4) 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) [2021-10-28 23:58:43,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:58:43,448 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-10-28 23:58:43,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:58:43,448 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-10-28 23:58:43,449 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:58:43,449 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 23:58:43,449 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 23:58:43,449 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 23:58:43,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 23:58:43,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:58:43,450 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:58:43,450 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:58:43,450 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:58:43,452 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 23:58:43,452 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:58:43,452 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:58:43,452 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 23:58:43,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:58:43 BoogieIcfgContainer [2021-10-28 23:58:43,466 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:58:43,469 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:58:43,469 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:58:43,469 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:58:43,470 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:58:38" (3/4) ... [2021-10-28 23:58:43,473 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:58:43,473 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:58:43,475 INFO L168 Benchmark]: Toolchain (without parser) took 5398.19 ms. Allocated memory was 88.1 MB in the beginning and 132.1 MB in the end (delta: 44.0 MB). Free memory was 52.5 MB in the beginning and 104.6 MB in the end (delta: -52.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:58:43,476 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 88.1 MB. Free memory was 68.3 MB in the beginning and 68.3 MB in the end (delta: 43.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:58:43,479 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.78 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 52.2 MB in the beginning and 85.1 MB in the end (delta: -32.9 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:58:43,485 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.11 ms. Allocated memory is still 107.0 MB. Free memory was 85.1 MB in the beginning and 83.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:58:43,486 INFO L168 Benchmark]: Boogie Preprocessor took 21.92 ms. Allocated memory is still 107.0 MB. Free memory was 83.7 MB in the beginning and 82.8 MB in the end (delta: 875.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:58:43,486 INFO L168 Benchmark]: RCFGBuilder took 292.43 ms. Allocated memory is still 107.0 MB. Free memory was 82.8 MB in the beginning and 75.0 MB in the end (delta: 7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:58:43,487 INFO L168 Benchmark]: BuchiAutomizer took 4740.23 ms. Allocated memory was 107.0 MB in the beginning and 132.1 MB in the end (delta: 25.2 MB). Free memory was 75.0 MB in the beginning and 104.8 MB in the end (delta: -29.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:58:43,487 INFO L168 Benchmark]: Witness Printer took 4.45 ms. Allocated memory is still 132.1 MB. Free memory is still 104.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:58:43,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 23:58:43,491 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 88.1 MB. Free memory was 68.3 MB in the beginning and 68.3 MB in the end (delta: 43.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 291.78 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 52.2 MB in the beginning and 85.1 MB in the end (delta: -32.9 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.11 ms. Allocated memory is still 107.0 MB. Free memory was 85.1 MB in the beginning and 83.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.92 ms. Allocated memory is still 107.0 MB. Free memory was 83.7 MB in the beginning and 82.8 MB in the end (delta: 875.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 292.43 ms. Allocated memory is still 107.0 MB. Free memory was 82.8 MB in the beginning and 75.0 MB in the end (delta: 7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4740.23 ms. Allocated memory was 107.0 MB in the beginning and 132.1 MB in the end (delta: 25.2 MB). Free memory was 75.0 MB in the beginning and 104.8 MB in the end (delta: -29.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.45 ms. Allocated memory is still 132.1 MB. Free memory is still 104.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (2 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function y + -1 * x and consists of 5 locations. One deterministic module has affine ranking function y + -1 * x and consists of 3 locations. One deterministic module has affine ranking function x + -1 * y and consists of 3 locations. One nondeterministic module has affine ranking function x + -1 * y and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.6s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 3.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 8 states and ocurred in iteration 1. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 31 SDtfs, 27 SDslu, 6 SDs, 0 SdLazy, 49 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax200 hnf100 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 64ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 23:58:43,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 23:58:43,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9988aae-772a-46fd-8d2a-425293b5898c/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...