./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Lobnya-Boolean-Reordered-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Lobnya-Boolean-Reordered-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 70e9192ed98be1c98a98d704655daf2c23fe89411c7a078d7ff71796ac189400 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:13:21,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:13:21,755 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:13:21,791 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:13:21,791 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:13:21,793 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:13:21,795 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:13:21,798 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:13:21,801 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:13:21,802 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:13:21,804 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:13:21,805 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:13:21,806 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:13:21,808 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:13:21,810 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:13:21,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:13:21,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:13:21,815 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:13:21,818 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:13:21,821 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:13:21,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:13:21,826 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:13:21,828 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:13:21,829 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:13:21,834 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:13:21,835 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:13:21,836 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:13:21,837 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:13:21,838 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:13:21,840 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:13:21,841 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:13:21,842 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:13:21,844 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:13:21,845 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:13:21,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:13:21,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:13:21,849 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:13:21,850 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:13:21,850 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:13:21,852 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:13:21,853 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:13:21,854 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 23:13:21,888 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:13:21,889 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:13:21,889 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:13:21,889 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:13:21,891 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:13:21,891 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:13:21,892 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:13:21,892 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:13:21,892 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:13:21,893 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:13:21,893 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:13:21,893 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:13:21,894 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:13:21,894 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:13:21,894 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:13:21,894 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:13:21,895 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:13:21,895 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:13:21,895 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:13:21,896 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:13:21,896 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:13:21,896 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:13:21,896 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:13:21,897 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:13:21,897 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:13:21,897 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:13:21,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:13:21,898 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:13:21,898 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:13:21,900 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:13:21,900 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_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70e9192ed98be1c98a98d704655daf2c23fe89411c7a078d7ff71796ac189400 [2021-10-28 23:13:22,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:13:22,239 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:13:22,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:13:22,248 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:13:22,249 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:13:22,250 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/termination-crafted/Lobnya-Boolean-Reordered-2.c [2021-10-28 23:13:22,345 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/data/454b1fda6/7fe655107e5e44c184520cbc615ef340/FLAGd99983163 [2021-10-28 23:13:22,998 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:13:22,999 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/sv-benchmarks/c/termination-crafted/Lobnya-Boolean-Reordered-2.c [2021-10-28 23:13:23,005 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/data/454b1fda6/7fe655107e5e44c184520cbc615ef340/FLAGd99983163 [2021-10-28 23:13:23,381 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/data/454b1fda6/7fe655107e5e44c184520cbc615ef340 [2021-10-28 23:13:23,384 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:13:23,386 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:13:23,392 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:13:23,392 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:13:23,397 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:13:23,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:13:23" (1/1) ... [2021-10-28 23:13:23,400 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d8054c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:13:23, skipping insertion in model container [2021-10-28 23:13:23,401 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:13:23" (1/1) ... [2021-10-28 23:13:23,409 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:13:23,425 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:13:23,618 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:13:23,622 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:13:23,664 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:13:23,677 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:13:23,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:13:23 WrapperNode [2021-10-28 23:13:23,678 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:13:23,679 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:13:23,679 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:13:23,680 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:13:23,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:13:23" (1/1) ... [2021-10-28 23:13:23,695 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:13:23" (1/1) ... [2021-10-28 23:13:23,715 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:13:23,716 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:13:23,716 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:13:23,716 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:13:23,726 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:13:23" (1/1) ... [2021-10-28 23:13:23,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:13:23" (1/1) ... [2021-10-28 23:13:23,727 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:13:23" (1/1) ... [2021-10-28 23:13:23,728 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:13:23" (1/1) ... [2021-10-28 23:13:23,730 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:13:23" (1/1) ... [2021-10-28 23:13:23,734 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:13:23" (1/1) ... [2021-10-28 23:13:23,735 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:13:23" (1/1) ... [2021-10-28 23:13:23,736 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:13:23,738 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:13:23,738 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:13:23,739 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:13:23,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:13:23" (1/1) ... [2021-10-28 23:13:23,751 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:23,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:23,792 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:23,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:13:23,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:13:23,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:13:24,036 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:13:24,037 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-28 23:13:24,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:13:24 BoogieIcfgContainer [2021-10-28 23:13:24,040 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:13:24,045 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:13:24,045 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:13:24,049 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:13:24,050 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:13:24,050 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:13:23" (1/3) ... [2021-10-28 23:13:24,052 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@36bfe30b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:13:24, skipping insertion in model container [2021-10-28 23:13:24,053 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:13:24,053 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:13:23" (2/3) ... [2021-10-28 23:13:24,054 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@36bfe30b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:13:24, skipping insertion in model container [2021-10-28 23:13:24,054 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:13:24,054 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:13:24" (3/3) ... [2021-10-28 23:13:24,056 INFO L389 chiAutomizerObserver]: Analyzing ICFG Lobnya-Boolean-Reordered-2.c [2021-10-28 23:13:24,129 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:13:24,129 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:13:24,129 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:13:24,130 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:13:24,130 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:13:24,130 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:13:24,130 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:13:24,130 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:13:24,150 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:13:24,173 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:13:24,174 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:13:24,174 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:13:24,180 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 23:13:24,181 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:13:24,181 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:13:24,181 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:13:24,183 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:13:24,184 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:13:24,184 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:13:24,184 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 23:13:24,185 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:13:24,193 INFO L791 eck$LassoCheckResult]: Stem: 7#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~b~0;havoc main_~x~0;havoc main_~b~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~b~0 := main_#t~nondet1;havoc main_#t~nondet1; 5#L18true assume !!(main_~x~0 >= -2147483647); 9#L22-2true [2021-10-28 23:13:24,193 INFO L793 eck$LassoCheckResult]: Loop: 9#L22-2true assume !!(0 != main_~b~0);main_~b~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~x~0 := main_~x~0 - 1; 6#L22true assume main_~x~0 >= 0;main_~b~0 := 1; 9#L22-2true [2021-10-28 23:13:24,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:13:24,202 INFO L85 PathProgramCache]: Analyzing trace with hash 998, now seen corresponding path program 1 times [2021-10-28 23:13:24,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:13:24,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584765111] [2021-10-28 23:13:24,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:13:24,219 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:13:24,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:13:24,326 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:13:24,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:13:24,360 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:13:24,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:13:24,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1444, now seen corresponding path program 1 times [2021-10-28 23:13:24,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:13:24,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429527383] [2021-10-28 23:13:24,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:13:24,367 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:13:24,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:13:24,389 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:13:24,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:13:24,408 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:13:24,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:13:24,411 INFO L85 PathProgramCache]: Analyzing trace with hash 959561, now seen corresponding path program 1 times [2021-10-28 23:13:24,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:13:24,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163010017] [2021-10-28 23:13:24,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:13:24,413 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:13:24,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:13:24,436 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:13:24,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:13:24,457 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:13:24,580 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:13:24,594 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:13:24,594 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:13:24,595 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:13:24,595 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:13:24,595 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:24,595 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:13:24,596 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:13:24,596 INFO L133 ssoRankerPreferences]: Filename of dumped script: Lobnya-Boolean-Reordered-2.c_Iteration1_Loop [2021-10-28 23:13:24,596 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:13:24,596 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:13:24,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:24,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:24,666 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:24,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:24,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:24,793 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:13:24,794 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:13:24,797 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:24,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:24,803 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:24,828 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:13:24,828 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:13:24,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 23:13:24,863 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:13:24,863 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:13:24,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:24,910 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:24,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:24,912 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:24,919 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:13:24,919 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:13:24,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 23:13:24,954 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:13:24,954 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:13:24,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:24,998 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:24,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:25,000 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:25,007 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:13:25,007 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:13:25,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 23:13:25,050 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:13:25,050 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:13:25,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:25,112 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:25,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:25,118 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:25,127 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:13:25,127 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:13:25,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 23:13:25,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-10-28 23:13:25,215 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:25,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:25,217 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:25,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 23:13:25,227 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:13:25,227 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:13:25,331 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:13:25,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:25,335 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:13:25,335 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:13:25,335 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:13:25,335 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:13:25,335 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:13:25,335 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:25,336 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:13:25,336 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:13:25,336 INFO L133 ssoRankerPreferences]: Filename of dumped script: Lobnya-Boolean-Reordered-2.c_Iteration1_Loop [2021-10-28 23:13:25,336 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:13:25,336 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:13:25,338 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:25,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:25,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:25,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:25,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:13:25,473 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:13:25,479 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:13:25,481 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:25,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:25,482 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:25,489 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:13:25,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 23:13:25,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:13:25,498 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:13:25,498 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:13:25,498 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:13:25,504 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:13:25,504 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:13:25,518 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:13:25,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:25,558 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:25,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:25,562 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:25,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 23:13:25,574 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:13:25,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:13:25,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:13:25,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:13:25,585 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:13:25,598 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:13:25,598 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:13:25,622 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:13:25,645 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-10-28 23:13:25,646 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:25,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:25,647 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:25,655 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:13:25,665 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:13:25,665 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:13:25,666 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:13:25,666 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:13:25,666 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:13:25,668 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:13:25,668 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:13:25,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 23:13:25,684 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:13:25,688 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:13:25,689 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:13:25,690 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:13:25,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:13:25,694 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:13:25,697 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:13:25,697 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:13:25,697 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:13:25,698 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-10-28 23:13:25,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 23:13:25,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:25,726 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:13:25,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:13:25,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:25,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:13:25,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:13:25,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:25,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:13:25,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:13:25,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:13:25,903 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 23:13:25,919 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:13:26,021 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 32 states and 39 transitions. Complement of second has 7 states. [2021-10-28 23:13:26,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 23:13:26,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:13:26,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2021-10-28 23:13:26,025 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-28 23:13:26,026 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:13:26,026 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-28 23:13:26,027 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:13:26,027 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-28 23:13:26,027 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:13:26,028 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 39 transitions. [2021-10-28 23:13:26,031 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:13:26,036 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 9 states and 12 transitions. [2021-10-28 23:13:26,037 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-10-28 23:13:26,037 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-28 23:13:26,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2021-10-28 23:13:26,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:13:26,038 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2021-10-28 23:13:26,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2021-10-28 23:13:26,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2021-10-28 23:13:26,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:13:26,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2021-10-28 23:13:26,063 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-10-28 23:13:26,063 INFO L587 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-10-28 23:13:26,063 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:13:26,063 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2021-10-28 23:13:26,064 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:13:26,064 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:13:26,064 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:13:26,064 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 23:13:26,064 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:13:26,065 INFO L791 eck$LassoCheckResult]: Stem: 86#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~b~0;havoc main_~x~0;havoc main_~b~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~b~0 := main_#t~nondet1;havoc main_#t~nondet1; 79#L18 assume !!(main_~x~0 >= -2147483647); 80#L22-2 assume !!(0 != main_~b~0);main_~b~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~x~0 := main_~x~0 - 1; 81#L22 [2021-10-28 23:13:26,065 INFO L793 eck$LassoCheckResult]: Loop: 81#L22 assume !(main_~x~0 >= 0);main_~b~0 := 0; 82#L22-2 assume !!(0 != main_~b~0);main_~b~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~x~0 := main_~x~0 - 1; 81#L22 [2021-10-28 23:13:26,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:13:26,065 INFO L85 PathProgramCache]: Analyzing trace with hash 30953, now seen corresponding path program 1 times [2021-10-28 23:13:26,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:13:26,066 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749269647] [2021-10-28 23:13:26,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:13:26,066 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:13:26,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:13:26,072 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:13:26,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:13:26,081 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:13:26,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:13:26,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1596, now seen corresponding path program 1 times [2021-10-28 23:13:26,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:13:26,082 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536467577] [2021-10-28 23:13:26,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:13:26,083 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:13:26,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:13:26,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:13:26,123 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:13:26,123 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536467577] [2021-10-28 23:13:26,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536467577] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:13:26,124 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:13:26,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-28 23:13:26,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481303178] [2021-10-28 23:13:26,128 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:13:26,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:13:26,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:13:26,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:13:26,132 INFO L87 Difference]: Start difference. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:13:26,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:13:26,141 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2021-10-28 23:13:26,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:13:26,142 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2021-10-28 23:13:26,143 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:13:26,143 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 0 states and 0 transitions. [2021-10-28 23:13:26,143 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 23:13:26,144 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 23:13:26,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 23:13:26,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:13:26,144 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:13:26,144 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:13:26,144 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:13:26,144 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:13:26,144 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:13:26,145 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:13:26,145 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 23:13:26,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:13:26 BoogieIcfgContainer [2021-10-28 23:13:26,150 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:13:26,151 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:13:26,151 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:13:26,151 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:13:26,152 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:13:24" (3/4) ... [2021-10-28 23:13:26,155 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:13:26,155 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:13:26,158 INFO L168 Benchmark]: Toolchain (without parser) took 2770.06 ms. Allocated memory was 104.9 MB in the beginning and 138.4 MB in the end (delta: 33.6 MB). Free memory was 72.5 MB in the beginning and 87.8 MB in the end (delta: -15.3 MB). Peak memory consumption was 18.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:13:26,158 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 104.9 MB. Free memory was 58.2 MB in the beginning and 58.1 MB in the end (delta: 54.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:13:26,159 INFO L168 Benchmark]: CACSL2BoogieTranslator took 286.18 ms. Allocated memory is still 104.9 MB. Free memory was 72.3 MB in the beginning and 81.3 MB in the end (delta: -9.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:13:26,160 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.06 ms. Allocated memory is still 104.9 MB. Free memory was 81.3 MB in the beginning and 80.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:13:26,161 INFO L168 Benchmark]: Boogie Preprocessor took 20.60 ms. Allocated memory is still 104.9 MB. Free memory was 80.1 MB in the beginning and 79.1 MB in the end (delta: 996.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:13:26,162 INFO L168 Benchmark]: RCFGBuilder took 302.55 ms. Allocated memory is still 104.9 MB. Free memory was 79.1 MB in the beginning and 71.3 MB in the end (delta: 7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:13:26,163 INFO L168 Benchmark]: BuchiAutomizer took 2105.95 ms. Allocated memory was 104.9 MB in the beginning and 138.4 MB in the end (delta: 33.6 MB). Free memory was 71.3 MB in the beginning and 87.8 MB in the end (delta: -16.6 MB). Peak memory consumption was 19.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:13:26,163 INFO L168 Benchmark]: Witness Printer took 4.65 ms. Allocated memory is still 138.4 MB. Free memory is still 87.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:13:26,168 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 104.9 MB. Free memory was 58.2 MB in the beginning and 58.1 MB in the end (delta: 54.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 286.18 ms. Allocated memory is still 104.9 MB. Free memory was 72.3 MB in the beginning and 81.3 MB in the end (delta: -9.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.06 ms. Allocated memory is still 104.9 MB. Free memory was 81.3 MB in the beginning and 80.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.60 ms. Allocated memory is still 104.9 MB. Free memory was 80.1 MB in the beginning and 79.1 MB in the end (delta: 996.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 302.55 ms. Allocated memory is still 104.9 MB. Free memory was 79.1 MB in the beginning and 71.3 MB in the end (delta: 7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2105.95 ms. Allocated memory was 104.9 MB in the beginning and 138.4 MB in the end (delta: 33.6 MB). Free memory was 71.3 MB in the beginning and 87.8 MB in the end (delta: -16.6 MB). Peak memory consumption was 19.3 MB. Max. memory is 16.1 GB. * Witness Printer took 4.65 ms. Allocated memory is still 138.4 MB. Free memory is still 87.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. 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 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 8 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 18 SDtfs, 13 SDslu, 13 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax170 hnf100 lsp34 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq170 hnf94 smp100 dnf150 smp100 tf108 neg92 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 38ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 23:13:26,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:13:26,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba388409-29f3-4af1-94d3-77a3dc4c29a6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...