./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa --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 d483d112ebc631f1c14642e780c42909cf25d334478fdf38ba7f61b34b8ee811 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 17:16:12,700 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 17:16:12,701 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 17:16:12,731 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 17:16:12,732 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 17:16:12,733 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 17:16:12,735 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 17:16:12,736 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 17:16:12,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 17:16:12,739 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 17:16:12,739 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 17:16:12,741 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 17:16:12,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 17:16:12,742 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 17:16:12,743 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 17:16:12,744 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 17:16:12,745 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 17:16:12,746 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 17:16:12,748 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 17:16:12,750 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 17:16:12,751 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 17:16:12,752 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 17:16:12,753 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 17:16:12,754 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 17:16:12,757 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 17:16:12,757 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 17:16:12,758 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 17:16:12,759 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 17:16:12,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 17:16:12,760 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 17:16:12,760 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 17:16:12,761 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 17:16:12,762 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 17:16:12,762 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 17:16:12,763 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 17:16:12,764 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 17:16:12,764 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 17:16:12,764 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 17:16:12,764 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 17:16:12,765 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 17:16:12,766 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 17:16:12,766 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-06 17:16:12,786 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 17:16:12,786 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 17:16:12,786 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 17:16:12,786 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 17:16:12,787 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 17:16:12,787 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 17:16:12,787 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 17:16:12,788 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-06 17:16:12,788 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-06 17:16:12,788 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-06 17:16:12,788 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-06 17:16:12,788 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-06 17:16:12,788 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-06 17:16:12,788 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 17:16:12,789 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 17:16:12,789 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 17:16:12,789 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 17:16:12,789 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-06 17:16:12,789 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-06 17:16:12,789 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-06 17:16:12,789 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 17:16:12,789 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-06 17:16:12,789 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 17:16:12,790 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-06 17:16:12,790 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 17:16:12,795 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 17:16:12,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 17:16:12,795 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 17:16:12,796 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 17:16:12,797 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-06 17:16:12,797 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_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d483d112ebc631f1c14642e780c42909cf25d334478fdf38ba7f61b34b8ee811 [2021-12-06 17:16:12,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 17:16:13,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 17:16:13,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 17:16:13,013 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 17:16:13,014 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 17:16:13,015 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b.c [2021-12-06 17:16:13,059 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/data/a32b14a60/1a203b287a47481d9638fad4ba0e6284/FLAGccda17267 [2021-12-06 17:16:13,422 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 17:16:13,423 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b.c [2021-12-06 17:16:13,428 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/data/a32b14a60/1a203b287a47481d9638fad4ba0e6284/FLAGccda17267 [2021-12-06 17:16:13,438 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/data/a32b14a60/1a203b287a47481d9638fad4ba0e6284 [2021-12-06 17:16:13,440 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 17:16:13,441 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 17:16:13,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 17:16:13,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 17:16:13,445 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 17:16:13,445 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:16:13" (1/1) ... [2021-12-06 17:16:13,446 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a22f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:13, skipping insertion in model container [2021-12-06 17:16:13,446 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:16:13" (1/1) ... [2021-12-06 17:16:13,452 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 17:16:13,461 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 17:16:13,564 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:16:13,567 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 17:16:13,576 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:16:13,584 INFO L208 MainTranslator]: Completed translation [2021-12-06 17:16:13,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:13 WrapperNode [2021-12-06 17:16:13,585 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 17:16:13,586 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 17:16:13,586 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 17:16:13,586 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 17:16:13,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:13" (1/1) ... [2021-12-06 17:16:13,595 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:13" (1/1) ... [2021-12-06 17:16:13,606 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2021-12-06 17:16:13,607 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 17:16:13,607 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 17:16:13,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 17:16:13,607 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 17:16:13,613 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:13" (1/1) ... [2021-12-06 17:16:13,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:13" (1/1) ... [2021-12-06 17:16:13,614 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:13" (1/1) ... [2021-12-06 17:16:13,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:13" (1/1) ... [2021-12-06 17:16:13,615 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:13" (1/1) ... [2021-12-06 17:16:13,618 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:13" (1/1) ... [2021-12-06 17:16:13,619 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:13" (1/1) ... [2021-12-06 17:16:13,619 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 17:16:13,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 17:16:13,620 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 17:16:13,620 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 17:16:13,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:13" (1/1) ... [2021-12-06 17:16:13,627 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:16:13,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:16:13,649 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:16:13,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-06 17:16:13,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 17:16:13,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 17:16:13,751 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 17:16:13,752 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 17:16:13,793 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 17:16:13,798 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 17:16:13,798 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 17:16:13,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:16:13 BoogieIcfgContainer [2021-12-06 17:16:13,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 17:16:13,800 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-06 17:16:13,801 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-06 17:16:13,803 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-06 17:16:13,803 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 17:16:13,803 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.12 05:16:13" (1/3) ... [2021-12-06 17:16:13,804 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@37ed022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 05:16:13, skipping insertion in model container [2021-12-06 17:16:13,804 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 17:16:13,804 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:13" (2/3) ... [2021-12-06 17:16:13,805 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@37ed022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 05:16:13, skipping insertion in model container [2021-12-06 17:16:13,805 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 17:16:13,805 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:16:13" (3/3) ... [2021-12-06 17:16:13,806 INFO L388 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig8b.c [2021-12-06 17:16:13,838 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-06 17:16:13,838 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-06 17:16:13,838 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-06 17:16:13,838 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-06 17:16:13,838 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-06 17:16:13,838 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-06 17:16:13,838 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-06 17:16:13,838 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-06 17:16:13,848 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:16:13,860 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 17:16:13,860 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 17:16:13,860 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 17:16:13,864 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-06 17:16:13,864 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 17:16:13,864 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-06 17:16:13,864 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:16:13,865 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 17:16:13,865 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 17:16:13,865 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 17:16:13,866 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-06 17:16:13,866 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 17:16:13,870 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~M~0#1;havoc main_~x~0#1;havoc main_~M~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~M~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 5#L17true assume main_~M~0#1 > 0; 3#L19-2true [2021-12-06 17:16:13,871 INFO L793 eck$LassoCheckResult]: Loop: 3#L19-2true assume !!(main_~x~0#1 != main_~M~0#1); 10#L19true assume main_~x~0#1 > main_~M~0#1;main_~x~0#1 := 0; 3#L19-2true [2021-12-06 17:16:13,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:16:13,875 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2021-12-06 17:16:13,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:16:13,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484211284] [2021-12-06 17:16:13,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:16:13,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:16:13,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:16:13,936 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:16:13,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:16:13,949 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:16:13,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:16:13,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 1 times [2021-12-06 17:16:13,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:16:13,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141499198] [2021-12-06 17:16:13,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:16:13,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:16:13,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:16:13,959 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:16:13,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:16:13,963 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:16:13,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:16:13,964 INFO L85 PathProgramCache]: Analyzing trace with hash 28693989, now seen corresponding path program 1 times [2021-12-06 17:16:13,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:16:13,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856348441] [2021-12-06 17:16:13,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:16:13,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:16:13,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:16:13,970 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:16:13,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:16:13,974 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:16:14,036 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 17:16:14,036 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 17:16:14,036 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 17:16:14,037 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 17:16:14,037 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 17:16:14,037 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:16:14,037 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 17:16:14,037 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 17:16:14,037 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8b.c_Iteration1_Lasso [2021-12-06 17:16:14,037 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 17:16:14,038 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 17:16:14,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:16:14,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:16:14,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:16:14,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:16:14,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:16:14,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:16:14,135 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 17:16:14,136 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 17:16:14,138 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:16:14,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:16:14,139 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:16:14,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-06 17:16:14,141 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 17:16:14,141 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 17:16:14,160 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 17:16:14,160 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: [] [2021-12-06 17:16:14,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-06 17:16:14,181 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:16:14,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:16:14,182 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:16:14,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-06 17:16:14,187 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 17:16:14,187 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 17:16:14,199 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 17:16:14,199 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 17:16:14,218 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-06 17:16:14,218 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:16:14,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:16:14,219 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:16:14,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-06 17:16:14,221 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 17:16:14,221 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 17:16:14,235 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 17:16:14,235 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: [] [2021-12-06 17:16:14,254 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-12-06 17:16:14,255 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:16:14,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:16:14,256 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:16:14,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-06 17:16:14,257 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 17:16:14,257 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 17:16:14,265 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 17:16:14,266 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 17:16:14,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-12-06 17:16:14,285 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:16:14,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:16:14,286 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:16:14,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-06 17:16:14,287 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 17:16:14,287 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 17:16:14,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-12-06 17:16:14,315 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:16:14,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:16:14,316 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:16:14,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-06 17:16:14,317 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 17:16:14,318 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 17:16:14,402 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 17:16:14,405 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-12-06 17:16:14,405 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 17:16:14,405 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 17:16:14,405 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 17:16:14,405 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 17:16:14,405 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 17:16:14,405 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:16:14,405 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 17:16:14,405 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 17:16:14,405 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8b.c_Iteration1_Lasso [2021-12-06 17:16:14,405 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 17:16:14,405 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 17:16:14,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:16:14,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:16:14,413 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:16:14,415 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:16:14,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:16:14,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:16:14,455 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 17:16:14,458 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 17:16:14,459 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:16:14,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:16:14,460 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:16:14,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-06 17:16:14,461 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 [2021-12-06 17:16:14,470 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:16:14,471 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:16:14,471 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:16:14,471 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:16:14,475 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:16:14,475 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:16:14,480 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:16:14,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-12-06 17:16:14,500 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:16:14,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:16:14,500 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:16:14,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-06 17:16:14,502 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 [2021-12-06 17:16:14,509 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:16:14,509 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:16:14,509 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:16:14,509 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:16:14,509 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:16:14,510 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:16:14,510 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:16:14,511 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:16:14,529 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-06 17:16:14,529 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:16:14,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:16:14,530 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:16:14,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-06 17:16:14,531 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 [2021-12-06 17:16:14,538 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:16:14,538 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:16:14,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:16:14,539 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:16:14,539 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:16:14,539 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:16:14,539 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:16:14,542 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:16:14,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-06 17:16:14,561 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:16:14,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:16:14,562 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:16:14,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-06 17:16:14,563 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 [2021-12-06 17:16:14,570 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:16:14,570 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:16:14,570 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:16:14,570 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:16:14,573 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:16:14,573 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:16:14,577 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:16:14,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-12-06 17:16:14,599 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:16:14,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:16:14,600 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:16:14,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-06 17:16:14,601 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 [2021-12-06 17:16:14,609 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:16:14,609 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:16:14,609 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:16:14,609 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:16:14,614 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:16:14,614 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:16:14,620 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 17:16:14,631 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-12-06 17:16:14,632 INFO L444 ModelExtractionUtils]: 3 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-12-06 17:16:14,633 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:16:14,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:16:14,634 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:16:14,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-06 17:16:14,635 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 17:16:14,645 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-12-06 17:16:14,645 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 17:16:14,645 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~M~0#1) = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_~M~0#1 Supporting invariants [1*ULTIMATE.start_main_~M~0#1 >= 0] [2021-12-06 17:16:14,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-12-06 17:16:14,668 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2021-12-06 17:16:14,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:16:14,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:14,700 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 17:16:14,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:16:14,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:14,712 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 17:16:14,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:16:14,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:16:14,755 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-12-06 17:16:14,756 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2021-12-06 17:16:14,805 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). 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 29 states and 36 transitions. Complement of second has 6 states. [2021-12-06 17:16:14,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 17:16:14,811 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) [2021-12-06 17:16:14,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2021-12-06 17:16:14,813 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 3 letters. Loop has 2 letters. [2021-12-06 17:16:14,814 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:16:14,814 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 5 letters. Loop has 2 letters. [2021-12-06 17:16:14,814 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:16:14,814 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 3 letters. Loop has 4 letters. [2021-12-06 17:16:14,814 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:16:14,815 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2021-12-06 17:16:14,818 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 17:16:14,822 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 9 states and 12 transitions. [2021-12-06 17:16:14,823 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-12-06 17:16:14,823 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-12-06 17:16:14,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2021-12-06 17:16:14,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 17:16:14,824 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2021-12-06 17:16:14,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2021-12-06 17:16:14,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-12-06 17:16:14,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:16:14,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2021-12-06 17:16:14,848 INFO L704 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2021-12-06 17:16:14,848 INFO L587 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2021-12-06 17:16:14,848 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-06 17:16:14,849 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2021-12-06 17:16:14,849 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 17:16:14,849 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 17:16:14,849 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 17:16:14,850 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-06 17:16:14,850 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 17:16:14,850 INFO L791 eck$LassoCheckResult]: Stem: 93#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 94#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~M~0#1;havoc main_~x~0#1;havoc main_~M~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~M~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 91#L17 assume main_~M~0#1 > 0; 92#L19-2 assume !!(main_~x~0#1 != main_~M~0#1); 90#L19 assume !(main_~x~0#1 > main_~M~0#1);main_~x~0#1 := 1 + main_~x~0#1; 86#L19-2 [2021-12-06 17:16:14,850 INFO L793 eck$LassoCheckResult]: Loop: 86#L19-2 assume !!(main_~x~0#1 != main_~M~0#1); 87#L19 assume main_~x~0#1 > main_~M~0#1;main_~x~0#1 := 0; 86#L19-2 [2021-12-06 17:16:14,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:16:14,851 INFO L85 PathProgramCache]: Analyzing trace with hash 28693991, now seen corresponding path program 1 times [2021-12-06 17:16:14,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:16:14,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778533784] [2021-12-06 17:16:14,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:16:14,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:16:14,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:16:14,857 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:16:14,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:16:14,861 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:16:14,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:16:14,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 2 times [2021-12-06 17:16:14,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:16:14,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750911851] [2021-12-06 17:16:14,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:16:14,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:16:14,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:16:14,868 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:16:14,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:16:14,872 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:16:14,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:16:14,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1805122026, now seen corresponding path program 1 times [2021-12-06 17:16:14,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:16:14,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783084249] [2021-12-06 17:16:14,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:16:14,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:16:14,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:14,917 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:16:14,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:16:14,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783084249] [2021-12-06 17:16:14,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783084249] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:16:14,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159292311] [2021-12-06 17:16:14,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:16:14,919 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:16:14,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:16:14,920 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:16:14,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-12-06 17:16:14,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:14,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 17:16:14,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:16:14,983 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:16:14,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:16:15,001 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:16:15,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159292311] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:16:15,002 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 17:16:15,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2021-12-06 17:16:15,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530651468] [2021-12-06 17:16:15,003 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 17:16:15,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:16:15,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 17:16:15,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 17:16:15,028 INFO L87 Difference]: Start difference. First operand 9 states and 12 transitions. cyclomatic complexity: 5 Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:16:15,043 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-12-06 17:16:15,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:16:15,048 INFO L93 Difference]: Finished difference Result 9 states and 11 transitions. [2021-12-06 17:16:15,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 17:16:15,049 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 11 transitions. [2021-12-06 17:16:15,049 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 17:16:15,050 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 11 transitions. [2021-12-06 17:16:15,050 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-12-06 17:16:15,050 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-12-06 17:16:15,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 11 transitions. [2021-12-06 17:16:15,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 17:16:15,050 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2021-12-06 17:16:15,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 11 transitions. [2021-12-06 17:16:15,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2021-12-06 17:16:15,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:16:15,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2021-12-06 17:16:15,051 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2021-12-06 17:16:15,051 INFO L587 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2021-12-06 17:16:15,051 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-06 17:16:15,051 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2021-12-06 17:16:15,052 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 17:16:15,052 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 17:16:15,052 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 17:16:15,052 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-06 17:16:15,052 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 17:16:15,052 INFO L791 eck$LassoCheckResult]: Stem: 157#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 158#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~M~0#1;havoc main_~x~0#1;havoc main_~M~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~M~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 155#L17 assume main_~M~0#1 > 0; 156#L19-2 assume !!(main_~x~0#1 != main_~M~0#1); 152#L19 [2021-12-06 17:16:15,052 INFO L793 eck$LassoCheckResult]: Loop: 152#L19 assume !(main_~x~0#1 > main_~M~0#1);main_~x~0#1 := 1 + main_~x~0#1; 151#L19-2 assume !!(main_~x~0#1 != main_~M~0#1); 152#L19 [2021-12-06 17:16:15,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:16:15,053 INFO L85 PathProgramCache]: Analyzing trace with hash 925612, now seen corresponding path program 1 times [2021-12-06 17:16:15,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:16:15,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240253893] [2021-12-06 17:16:15,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:16:15,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:16:15,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:16:15,056 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:16:15,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:16:15,059 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:16:15,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:16:15,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1564, now seen corresponding path program 1 times [2021-12-06 17:16:15,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:16:15,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088306695] [2021-12-06 17:16:15,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:16:15,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:16:15,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:16:15,063 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:16:15,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:16:15,065 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:16:15,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:16:15,066 INFO L85 PathProgramCache]: Analyzing trace with hash 889513735, now seen corresponding path program 2 times [2021-12-06 17:16:15,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:16:15,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467775475] [2021-12-06 17:16:15,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:16:15,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:16:15,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:16:15,069 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:16:15,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:16:15,073 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:16:15,086 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 17:16:15,086 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 17:16:15,086 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 17:16:15,086 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 17:16:15,086 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 17:16:15,086 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:16:15,086 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 17:16:15,086 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 17:16:15,086 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8b.c_Iteration3_Loop [2021-12-06 17:16:15,086 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 17:16:15,086 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 17:16:15,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:16:15,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:16:15,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:16:15,134 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 17:16:15,134 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 17:16:15,134 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:16:15,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:16:15,135 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:16:15,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-06 17:16:15,136 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 17:16:15,136 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 17:16:15,148 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 17:16:15,149 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: [] [2021-12-06 17:16:15,168 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-12-06 17:16:15,168 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:16:15,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:16:15,169 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:16:15,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-06 17:16:15,170 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 17:16:15,170 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 17:16:15,186 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 17:16:15,186 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 17:16:15,205 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-12-06 17:16:15,205 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:16:15,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:16:15,206 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:16:15,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-06 17:16:15,207 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 17:16:15,207 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 17:16:15,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-12-06 17:16:15,244 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:16:15,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:16:15,245 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:16:15,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-06 17:16:15,246 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 17:16:15,246 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 17:16:16,963 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 17:16:16,965 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-12-06 17:16:16,966 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 17:16:16,966 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 17:16:16,966 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 17:16:16,966 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 17:16:16,966 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 17:16:16,966 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:16:16,966 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 17:16:16,966 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 17:16:16,966 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8b.c_Iteration3_Loop [2021-12-06 17:16:16,966 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 17:16:16,966 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 17:16:16,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:16:16,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:16:16,970 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:16:17,004 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 17:16:17,005 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 17:16:17,005 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:16:17,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:16:17,006 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:16:17,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-06 17:16:17,007 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 [2021-12-06 17:16:17,013 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:16:17,014 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:16:17,014 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:16:17,014 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:16:17,016 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:16:17,016 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:16:17,018 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:16:17,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-12-06 17:16:17,037 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:16:17,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:16:17,038 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:16:17,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-06 17:16:17,060 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 [2021-12-06 17:16:17,067 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:16:17,067 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:16:17,067 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:16:17,068 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:16:17,069 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:16:17,069 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:16:17,072 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:16:17,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-12-06 17:16:17,090 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:16:17,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:16:17,091 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:16:17,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-06 17:16:17,092 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 [2021-12-06 17:16:17,099 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:16:17,100 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:16:17,100 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:16:17,100 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-12-06 17:16:17,100 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:16:17,101 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-12-06 17:16:17,101 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:16:17,104 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 17:16:17,107 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-06 17:16:17,107 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-06 17:16:17,107 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:16:17,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:16:17,108 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:16:17,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-06 17:16:17,109 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 17:16:17,109 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 17:16:17,109 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 17:16:17,109 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~M~0#1, ULTIMATE.start_main_~x~0#1) = 2*ULTIMATE.start_main_~M~0#1 - 2*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [] [2021-12-06 17:16:17,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-12-06 17:16:17,134 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 17:16:17,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:16:17,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:17,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 17:16:17,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:16:17,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:17,150 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 17:16:17,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:16:17,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:16:17,169 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 [2021-12-06 17:16:17,169 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 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) [2021-12-06 17:16:17,176 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. 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 13 states and 15 transitions. Complement of second has 5 states. [2021-12-06 17:16:17,176 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 [2021-12-06 17:16:17,177 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) [2021-12-06 17:16:17,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-12-06 17:16:17,177 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2021-12-06 17:16:17,177 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:16:17,178 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2021-12-06 17:16:17,178 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:16:17,178 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2021-12-06 17:16:17,178 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:16:17,178 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 15 transitions. [2021-12-06 17:16:17,179 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 17:16:17,179 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 9 states and 10 transitions. [2021-12-06 17:16:17,179 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-12-06 17:16:17,179 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-12-06 17:16:17,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2021-12-06 17:16:17,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 17:16:17,179 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2021-12-06 17:16:17,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2021-12-06 17:16:17,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2021-12-06 17:16:17,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.125) internal successors, (9), 7 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) [2021-12-06 17:16:17,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2021-12-06 17:16:17,180 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2021-12-06 17:16:17,180 INFO L587 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2021-12-06 17:16:17,180 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-06 17:16:17,180 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 9 transitions. [2021-12-06 17:16:17,181 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 17:16:17,181 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 17:16:17,181 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 17:16:17,181 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2021-12-06 17:16:17,181 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 17:16:17,181 INFO L791 eck$LassoCheckResult]: Stem: 216#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 217#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~M~0#1;havoc main_~x~0#1;havoc main_~M~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~M~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 215#L17 assume main_~M~0#1 > 0; 211#L19-2 assume !!(main_~x~0#1 != main_~M~0#1); 212#L19 assume main_~x~0#1 > main_~M~0#1;main_~x~0#1 := 0; 213#L19-2 assume !!(main_~x~0#1 != main_~M~0#1); 214#L19 [2021-12-06 17:16:17,181 INFO L793 eck$LassoCheckResult]: Loop: 214#L19 assume !(main_~x~0#1 > main_~M~0#1);main_~x~0#1 := 1 + main_~x~0#1; 218#L19-2 assume !!(main_~x~0#1 != main_~M~0#1); 214#L19 [2021-12-06 17:16:17,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:16:17,181 INFO L85 PathProgramCache]: Analyzing trace with hash 889513673, now seen corresponding path program 2 times [2021-12-06 17:16:17,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:16:17,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599035676] [2021-12-06 17:16:17,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:16:17,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:16:17,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:16:17,185 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:16:17,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:16:17,187 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:16:17,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:16:17,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1564, now seen corresponding path program 2 times [2021-12-06 17:16:17,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:16:17,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990894505] [2021-12-06 17:16:17,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:16:17,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:16:17,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:16:17,191 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:16:17,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:16:17,193 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:16:17,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:16:17,193 INFO L85 PathProgramCache]: Analyzing trace with hash 124148452, now seen corresponding path program 2 times [2021-12-06 17:16:17,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:16:17,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141419140] [2021-12-06 17:16:17,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:16:17,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:16:17,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:16:17,197 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:16:17,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:16:17,201 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:16:17,214 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 17:16:17,214 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 17:16:17,214 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 17:16:17,214 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 17:16:17,214 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 17:16:17,214 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:16:17,215 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 17:16:17,215 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 17:16:17,215 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8b.c_Iteration4_Loop [2021-12-06 17:16:17,215 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 17:16:17,215 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 17:16:17,216 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:16:17,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:16:17,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:16:17,253 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 17:16:17,253 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 17:16:17,253 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:16:17,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:16:17,254 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:16:17,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-06 17:16:17,255 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 17:16:17,255 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 17:16:17,268 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 17:16:17,268 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: [] [2021-12-06 17:16:17,286 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-12-06 17:16:17,287 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:16:17,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:16:17,287 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:16:17,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-06 17:16:17,289 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 17:16:17,289 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 17:16:17,320 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-12-06 17:16:17,320 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:16:17,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:16:17,321 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:16:17,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-06 17:16:17,322 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 17:16:17,322 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 17:16:19,027 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 17:16:19,030 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-12-06 17:16:19,030 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 17:16:19,030 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 17:16:19,030 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 17:16:19,030 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 17:16:19,031 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 17:16:19,031 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:16:19,031 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 17:16:19,031 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 17:16:19,031 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8b.c_Iteration4_Loop [2021-12-06 17:16:19,031 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 17:16:19,031 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 17:16:19,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:16:19,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:16:19,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:16:19,064 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 17:16:19,064 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 17:16:19,064 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:16:19,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:16:19,065 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:16:19,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-12-06 17:16:19,066 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 17:16:19,072 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:16:19,073 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:16:19,073 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:16:19,073 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-12-06 17:16:19,073 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:16:19,074 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-12-06 17:16:19,074 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:16:19,076 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 17:16:19,078 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-06 17:16:19,079 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-06 17:16:19,079 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:16:19,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:16:19,080 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:16:19,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-12-06 17:16:19,080 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 17:16:19,080 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 17:16:19,081 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 17:16:19,081 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~M~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 2*ULTIMATE.start_main_~M~0#1 + 1 Supporting invariants [] [2021-12-06 17:16:19,099 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-12-06 17:16:19,099 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 17:16:19,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:16:19,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:19,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 17:16:19,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:16:19,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:19,117 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 17:16:19,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:16:19,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:16:19,129 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 [2021-12-06 17:16:19,129 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2021-12-06 17:16:19,132 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) Result 9 states and 10 transitions. Complement of second has 3 states. [2021-12-06 17:16:19,133 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 [2021-12-06 17:16:19,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2021-12-06 17:16:19,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2021-12-06 17:16:19,133 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 6 letters. Loop has 2 letters. [2021-12-06 17:16:19,134 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:16:19,134 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-06 17:16:19,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:16:19,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:19,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 17:16:19,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:16:19,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:19,150 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 17:16:19,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:16:19,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:16:19,165 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 [2021-12-06 17:16:19,166 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2021-12-06 17:16:19,170 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) Result 9 states and 10 transitions. Complement of second has 3 states. [2021-12-06 17:16:19,170 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 [2021-12-06 17:16:19,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2021-12-06 17:16:19,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2021-12-06 17:16:19,171 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 6 letters. Loop has 2 letters. [2021-12-06 17:16:19,171 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:16:19,171 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-06 17:16:19,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:16:19,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:19,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 17:16:19,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:16:19,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:16:19,188 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 17:16:19,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:16:19,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:16:19,202 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 [2021-12-06 17:16:19,202 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2021-12-06 17:16:19,210 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) Result 10 states and 11 transitions. Complement of second has 4 states. [2021-12-06 17:16:19,210 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 [2021-12-06 17:16:19,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2021-12-06 17:16:19,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2021-12-06 17:16:19,211 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 2 letters. [2021-12-06 17:16:19,212 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:16:19,212 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 8 letters. Loop has 2 letters. [2021-12-06 17:16:19,212 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:16:19,212 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 4 letters. [2021-12-06 17:16:19,213 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:16:19,213 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. [2021-12-06 17:16:19,213 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 17:16:19,214 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2021-12-06 17:16:19,214 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-06 17:16:19,214 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-06 17:16:19,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-06 17:16:19,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 17:16:19,214 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 17:16:19,214 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 17:16:19,214 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 17:16:19,214 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-06 17:16:19,214 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-06 17:16:19,214 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 17:16:19,214 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-06 17:16:19,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.12 05:16:19 BoogieIcfgContainer [2021-12-06 17:16:19,220 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-06 17:16:19,220 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 17:16:19,220 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 17:16:19,220 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 17:16:19,221 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:16:13" (3/4) ... [2021-12-06 17:16:19,223 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 17:16:19,223 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 17:16:19,224 INFO L158 Benchmark]: Toolchain (without parser) took 5782.42ms. Allocated memory is still 140.5MB. Free memory was 97.8MB in the beginning and 56.6MB in the end (delta: 41.3MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. [2021-12-06 17:16:19,224 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 140.5MB. Free memory is still 114.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 17:16:19,224 INFO L158 Benchmark]: CACSL2BoogieTranslator took 143.12ms. Allocated memory is still 140.5MB. Free memory was 97.6MB in the beginning and 89.0MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 17:16:19,225 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.98ms. Allocated memory is still 140.5MB. Free memory was 89.0MB in the beginning and 87.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 17:16:19,225 INFO L158 Benchmark]: Boogie Preprocessor took 12.26ms. Allocated memory is still 140.5MB. Free memory was 87.6MB in the beginning and 86.8MB in the end (delta: 771.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 17:16:19,226 INFO L158 Benchmark]: RCFGBuilder took 179.83ms. Allocated memory is still 140.5MB. Free memory was 86.8MB in the beginning and 114.5MB in the end (delta: -27.7MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2021-12-06 17:16:19,226 INFO L158 Benchmark]: BuchiAutomizer took 5419.30ms. Allocated memory is still 140.5MB. Free memory was 114.5MB in the beginning and 56.6MB in the end (delta: 57.9MB). Peak memory consumption was 59.8MB. Max. memory is 16.1GB. [2021-12-06 17:16:19,227 INFO L158 Benchmark]: Witness Printer took 2.64ms. Allocated memory is still 140.5MB. Free memory is still 56.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 17:16:19,229 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 140.5MB. Free memory is still 114.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 143.12ms. Allocated memory is still 140.5MB. Free memory was 97.6MB in the beginning and 89.0MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.98ms. Allocated memory is still 140.5MB. Free memory was 89.0MB in the beginning and 87.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 12.26ms. Allocated memory is still 140.5MB. Free memory was 87.6MB in the beginning and 86.8MB in the end (delta: 771.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 179.83ms. Allocated memory is still 140.5MB. Free memory was 86.8MB in the beginning and 114.5MB in the end (delta: -27.7MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 5419.30ms. Allocated memory is still 140.5MB. Free memory was 114.5MB in the beginning and 56.6MB in the end (delta: 57.9MB). Peak memory consumption was 59.8MB. Max. memory is 16.1GB. * Witness Printer took 2.64ms. Allocated memory is still 140.5MB. Free memory is still 56.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x + -1 * M and consists of 4 locations. One deterministic module has affine ranking function 2 * M + -2 * x + 1 and consists of 3 locations. One nondeterministic module has affine ranking function 2 * M + -2 * x + 1 and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.3s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 4.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 9 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 37 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39 IncrementalHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 32 mSDtfsCounter, 39 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax200 hnf100 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf94 smp100 dnf143 smp85 tf104 neg95 sie119 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 21ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 3.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-06 17:16:19,254 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-12-06 17:16:19,489 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-12-06 17:16:19,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-12-06 17:16:19,893 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d50d62-745f-4f35-8f5f-e226e4dd75d6/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE