./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer --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 500cb8735f650eb0e7c33062ddc23c2166b17f19 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:29:06,672 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:29:06,695 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:29:06,770 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:29:06,772 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:29:06,777 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:29:06,782 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:29:06,787 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:29:06,790 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:29:06,797 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:29:06,799 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:29:06,801 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:29:06,802 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:29:06,806 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:29:06,808 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:29:06,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:29:06,811 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:29:06,813 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:29:06,822 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:29:06,833 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:29:06,836 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:29:06,838 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:29:06,840 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:29:06,842 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:29:06,852 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:29:06,853 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:29:06,853 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:29:06,856 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:29:06,857 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:29:06,858 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:29:06,859 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:29:06,861 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:29:06,863 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:29:06,864 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:29:06,867 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:29:06,867 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:29:06,868 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:29:06,868 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:29:06,868 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:29:06,870 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:29:06,870 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:29:06,874 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-30 00:29:06,931 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:29:06,932 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:29:06,933 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:29:06,933 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:29:06,933 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:29:06,934 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:29:06,934 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:29:06,934 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:29:06,934 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:29:06,934 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:29:06,935 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:29:06,935 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:29:06,935 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:29:06,936 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:29:06,936 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:29:06,936 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:29:06,936 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:29:06,937 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:29:06,937 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:29:06,937 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:29:06,938 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:29:06,938 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:29:06,938 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:29:06,939 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:29:06,939 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:29:06,939 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:29:06,939 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:29:06,940 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:29:06,940 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:29:06,941 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:29:06,941 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-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 500cb8735f650eb0e7c33062ddc23c2166b17f19 [2020-11-30 00:29:07,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:29:07,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:29:07,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:29:07,322 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:29:07,323 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:29:07,324 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2020-11-30 00:29:07,410 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/data/3086eeee2/e4daf0bffa8a47d6a3c0aea088cd60b3/FLAGf8e640b91 [2020-11-30 00:29:08,081 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:29:08,082 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2020-11-30 00:29:08,089 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/data/3086eeee2/e4daf0bffa8a47d6a3c0aea088cd60b3/FLAGf8e640b91 [2020-11-30 00:29:08,457 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/data/3086eeee2/e4daf0bffa8a47d6a3c0aea088cd60b3 [2020-11-30 00:29:08,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:29:08,461 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:29:08,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:29:08,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:29:08,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:29:08,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:29:08" (1/1) ... [2020-11-30 00:29:08,472 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dfcbcab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:08, skipping insertion in model container [2020-11-30 00:29:08,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:29:08" (1/1) ... [2020-11-30 00:29:08,483 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:29:08,501 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:29:08,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:29:08,653 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:29:08,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:29:08,682 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:29:08,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:08 WrapperNode [2020-11-30 00:29:08,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:29:08,684 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:29:08,684 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:29:08,685 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:29:08,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:08" (1/1) ... [2020-11-30 00:29:08,699 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:08" (1/1) ... [2020-11-30 00:29:08,740 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:29:08,741 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:29:08,741 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:29:08,741 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:29:08,755 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:08" (1/1) ... [2020-11-30 00:29:08,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:08" (1/1) ... [2020-11-30 00:29:08,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:08" (1/1) ... [2020-11-30 00:29:08,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:08" (1/1) ... [2020-11-30 00:29:08,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:08" (1/1) ... [2020-11-30 00:29:08,768 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:08" (1/1) ... [2020-11-30 00:29:08,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:08" (1/1) ... [2020-11-30 00:29:08,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:29:08,771 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:29:08,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:29:08,773 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:29:08,774 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:29:08,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:29:08,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:29:09,028 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:29:09,028 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-30 00:29:09,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:29:09 BoogieIcfgContainer [2020-11-30 00:29:09,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:29:09,032 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:29:09,032 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:29:09,036 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:29:09,037 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:29:09,037 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:29:08" (1/3) ... [2020-11-30 00:29:09,039 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56946cbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:29:09, skipping insertion in model container [2020-11-30 00:29:09,039 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:29:09,039 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:08" (2/3) ... [2020-11-30 00:29:09,040 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56946cbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:29:09, skipping insertion in model container [2020-11-30 00:29:09,040 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:29:09,040 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:29:09" (3/3) ... [2020-11-30 00:29:09,042 INFO L373 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2020-11-30 00:29:09,096 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:29:09,096 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:29:09,096 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:29:09,096 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:29:09,097 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:29:09,097 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:29:09,097 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:29:09,097 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:29:09,119 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-11-30 00:29:09,136 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-30 00:29:09,137 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:29:09,137 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:29:09,144 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-30 00:29:09,144 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:29:09,144 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:29:09,144 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-11-30 00:29:09,145 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-30 00:29:09,145 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:29:09,146 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:29:09,146 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-30 00:29:09,146 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:29:09,152 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 6#L17true assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := 0;main_~j~0 := 0; 9#L21-2true [2020-11-30 00:29:09,153 INFO L796 eck$LassoCheckResult]: Loop: 9#L21-2true assume !!(main_~i~0 < main_~n~0); 3#L21true assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 9#L21-2true [2020-11-30 00:29:09,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:09,158 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2020-11-30 00:29:09,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:09,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395472861] [2020-11-30 00:29:09,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:09,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:29:09,263 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:29:09,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:29:09,285 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:29:09,310 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:29:09,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:09,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 1 times [2020-11-30 00:29:09,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:09,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760660232] [2020-11-30 00:29:09,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:09,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:29:09,337 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:29:09,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:29:09,344 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:29:09,346 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:29:09,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:09,348 INFO L82 PathProgramCache]: Analyzing trace with hash 957575, now seen corresponding path program 1 times [2020-11-30 00:29:09,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:09,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317823497] [2020-11-30 00:29:09,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:09,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:29:09,376 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:29:09,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:29:09,396 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:29:09,400 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:29:09,599 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2020-11-30 00:29:09,612 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:29:09,613 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:29:09,613 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:29:09,613 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:29:09,614 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-30 00:29:09,614 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:29:09,614 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:29:09,614 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:29:09,615 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration1_Loop [2020-11-30 00:29:09,615 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:29:09,615 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:29:09,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:09,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:09,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:09,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:09,827 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:29:09,827 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:29:09,840 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:29:09,841 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:29:09,853 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:29:09,853 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: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:29:09,901 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:29:09,901 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:29:09,907 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:29:09,907 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: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:29:09,954 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:29:09,954 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:29:09,960 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:29:09,961 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~n~0=1, ULTIMATE.start_main_~i~0=0} Honda state: {ULTIMATE.start_main_~n~0=1, ULTIMATE.start_main_~i~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:29:10,008 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:29:10,008 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:29:10,060 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-30 00:29:10,061 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:29:10,273 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-30 00:29:10,277 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:29:10,277 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:29:10,277 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:29:10,277 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:29:10,278 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:29:10,278 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:29:10,278 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:29:10,278 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:29:10,278 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration1_Loop [2020-11-30 00:29:10,278 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:29:10,279 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:29:10,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:10,288 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:10,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:10,300 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:10,446 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:29:10,452 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:29:10,463 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:29:10,466 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:29:10,466 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:29:10,467 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:29:10,467 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:29:10,468 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:29:10,470 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:29:10,470 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:29:10,474 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:29:10,517 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:29:10,519 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:29:10,519 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:29:10,519 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:29:10,519 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:29:10,524 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:29:10,524 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:29:10,538 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:29:10,582 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:29:10,585 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:29:10,586 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:29:10,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:29:10,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:29:10,593 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:29:10,593 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:29:10,602 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:29:10,638 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:29:10,640 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:29:10,640 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:29:10,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:29:10,641 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:29:10,641 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:29:10,642 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:29:10,642 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:29:10,646 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:29:10,651 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-30 00:29:10,651 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:29:10,660 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 00:29:10,660 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-30 00:29:10,661 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:29:10,661 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~m~0) = -1*ULTIMATE.start_main_~j~0 + 1*ULTIMATE.start_main_~m~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:29:10,697 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-30 00:29:10,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:10,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:10,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:29:10,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:29:10,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:10,771 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:29:10,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:29:10,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:10,793 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 [2020-11-30 00:29:10,794 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2020-11-30 00:29:10,863 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 28 states and 35 transitions. Complement of second has 6 states. [2020-11-30 00:29:10,863 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 [2020-11-30 00:29:10,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-30 00:29:10,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2020-11-30 00:29:10,867 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 2 letters. [2020-11-30 00:29:10,868 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:29:10,868 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 4 letters. Loop has 2 letters. [2020-11-30 00:29:10,868 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:29:10,868 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 4 letters. [2020-11-30 00:29:10,868 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:29:10,914 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2020-11-30 00:29:10,918 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-30 00:29:10,922 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 8 states and 11 transitions. [2020-11-30 00:29:10,923 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-11-30 00:29:10,923 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-11-30 00:29:10,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2020-11-30 00:29:10,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:29:10,924 INFO L691 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-11-30 00:29:10,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2020-11-30 00:29:11,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-11-30 00:29:11,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-11-30 00:29:11,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2020-11-30 00:29:11,011 INFO L714 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-11-30 00:29:11,011 INFO L594 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-11-30 00:29:11,011 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:29:11,014 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2020-11-30 00:29:11,018 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-30 00:29:11,018 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:29:11,019 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:29:11,019 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-30 00:29:11,019 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:29:11,019 INFO L794 eck$LassoCheckResult]: Stem: 76#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 77#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := 0;main_~j~0 := 0; 78#L21-2 assume !!(main_~i~0 < main_~n~0); 72#L21 assume !(main_~j~0 < main_~m~0);main_~j~0 := 0;main_~i~0 := 1 + main_~i~0; 73#L21-2 [2020-11-30 00:29:11,019 INFO L796 eck$LassoCheckResult]: Loop: 73#L21-2 assume !!(main_~i~0 < main_~n~0); 79#L21 assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 73#L21-2 [2020-11-30 00:29:11,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:11,020 INFO L82 PathProgramCache]: Analyzing trace with hash 957577, now seen corresponding path program 1 times [2020-11-30 00:29:11,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:11,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809217116] [2020-11-30 00:29:11,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:11,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:11,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:11,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809217116] [2020-11-30 00:29:11,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:11,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:29:11,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783686327] [2020-11-30 00:29:11,087 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-30 00:29:11,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:11,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 2 times [2020-11-30 00:29:11,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:11,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123458607] [2020-11-30 00:29:11,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:11,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:29:11,097 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:29:11,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:29:11,108 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:29:11,111 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:29:11,138 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:29:11,138 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:29:11,139 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:29:11,139 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:29:11,139 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-30 00:29:11,139 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:29:11,139 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:29:11,139 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:29:11,139 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration2_Loop [2020-11-30 00:29:11,139 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:29:11,139 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:29:11,141 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:11,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:11,153 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:11,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:11,334 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:29:11,335 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:29:11,341 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:29:11,341 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:29:11,351 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:29:11,351 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: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:29:11,397 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:29:11,397 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:29:11,410 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-30 00:29:11,410 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: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:29:11,454 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:29:11,455 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:29:11,486 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-30 00:29:11,486 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-30 00:29:11,628 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-30 00:29:11,630 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:29:11,630 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:29:11,630 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:29:11,630 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:29:11,630 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:29:11,630 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:29:11,631 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:29:11,631 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:29:11,631 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration2_Loop [2020-11-30 00:29:11,631 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:29:11,631 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:29:11,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:11,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:11,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:11,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:11,767 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:29:11,767 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:29:11,770 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:29:11,772 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:29:11,772 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:29:11,772 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:29:11,772 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:29:11,778 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:29:11,778 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:29:11,783 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:29:11,810 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:29:11,811 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:29:11,811 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:29:11,811 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:29:11,812 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:29:11,815 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:29:11,815 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:29:11,833 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:29:11,858 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:29:11,861 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:29:11,862 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:29:11,862 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:29:11,862 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:29:11,862 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:29:11,863 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:29:11,863 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:29:11,865 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:29:11,869 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-30 00:29:11,869 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:29:11,874 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 00:29:11,874 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:29:11,875 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:29:11,875 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~m~0) = -1*ULTIMATE.start_main_~j~0 + 1*ULTIMATE.start_main_~m~0 Supporting invariants [] [2020-11-30 00:29:11,898 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-30 00:29:11,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:11,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:11,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:29:11,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:29:11,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:11,925 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:29:11,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:29:11,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:11,927 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 [2020-11-30 00:29:11,927 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-11-30 00:29:11,938 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 12 states and 17 transitions. Complement of second has 5 states. [2020-11-30 00:29:11,939 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 [2020-11-30 00:29:11,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-30 00:29:11,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-11-30 00:29:11,940 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2020-11-30 00:29:11,940 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:29:11,940 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2020-11-30 00:29:11,940 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:29:11,941 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2020-11-30 00:29:11,941 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:29:11,941 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2020-11-30 00:29:11,942 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-30 00:29:11,943 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2020-11-30 00:29:11,943 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-11-30 00:29:11,943 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-11-30 00:29:11,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2020-11-30 00:29:11,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:29:11,944 INFO L691 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2020-11-30 00:29:11,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2020-11-30 00:29:11,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-11-30 00:29:11,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-30 00:29:11,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2020-11-30 00:29:11,952 INFO L714 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2020-11-30 00:29:11,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:11,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:29:11,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:29:11,957 INFO L87 Difference]: Start difference. First operand 12 states and 17 transitions. Second operand 3 states. [2020-11-30 00:29:11,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:11,968 INFO L93 Difference]: Finished difference Result 14 states and 18 transitions. [2020-11-30 00:29:11,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:29:11,968 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 18 transitions. [2020-11-30 00:29:11,969 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-30 00:29:11,970 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 13 states and 17 transitions. [2020-11-30 00:29:11,970 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-11-30 00:29:11,970 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-11-30 00:29:11,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2020-11-30 00:29:11,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:29:11,971 INFO L691 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2020-11-30 00:29:11,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2020-11-30 00:29:11,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2020-11-30 00:29:11,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-30 00:29:11,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2020-11-30 00:29:11,973 INFO L714 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2020-11-30 00:29:11,973 INFO L594 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2020-11-30 00:29:11,973 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:29:11,973 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2020-11-30 00:29:11,974 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-30 00:29:11,974 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:29:11,974 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:29:11,975 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1] [2020-11-30 00:29:11,975 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:29:11,975 INFO L794 eck$LassoCheckResult]: Stem: 159#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 160#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := 0;main_~j~0 := 0; 161#L21-2 assume !!(main_~i~0 < main_~n~0); 157#L21 assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 158#L21-2 assume !!(main_~i~0 < main_~n~0); 155#L21 assume !(main_~j~0 < main_~m~0);main_~j~0 := 0;main_~i~0 := 1 + main_~i~0; 156#L21-2 assume !!(main_~i~0 < main_~n~0); 164#L21 assume !(main_~j~0 < main_~m~0);main_~j~0 := 0;main_~i~0 := 1 + main_~i~0; 162#L21-2 [2020-11-30 00:29:11,975 INFO L796 eck$LassoCheckResult]: Loop: 162#L21-2 assume !!(main_~i~0 < main_~n~0); 163#L21 assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 162#L21-2 [2020-11-30 00:29:11,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:11,976 INFO L82 PathProgramCache]: Analyzing trace with hash -422236399, now seen corresponding path program 1 times [2020-11-30 00:29:11,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:11,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744902775] [2020-11-30 00:29:11,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:12,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:12,054 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 00:29:12,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744902775] [2020-11-30 00:29:12,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268310657] [2020-11-30 00:29:12,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2020-11-30 00:29:12,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:12,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 00:29:12,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:29:12,140 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 00:29:12,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-30 00:29:12,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2020-11-30 00:29:12,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356845106] [2020-11-30 00:29:12,142 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-30 00:29:12,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:12,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 3 times [2020-11-30 00:29:12,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:12,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374409897] [2020-11-30 00:29:12,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:12,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:29:12,151 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:29:12,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:29:12,155 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:29:12,156 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:29:12,174 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:29:12,174 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:29:12,174 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:29:12,174 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:29:12,174 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-30 00:29:12,175 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:29:12,175 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:29:12,175 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:29:12,175 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration3_Loop [2020-11-30 00:29:12,175 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:29:12,175 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:29:12,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:12,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:12,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:12,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:12,285 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:29:12,285 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:29:12,288 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:29:12,288 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:29:12,324 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-30 00:29:12,324 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-30 00:29:12,532 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-30 00:29:12,534 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:29:12,535 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:29:12,535 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:29:12,535 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:29:12,535 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:29:12,535 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:29:12,535 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:29:12,535 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:29:12,535 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration3_Loop [2020-11-30 00:29:12,535 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:29:12,535 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:29:12,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:12,551 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:12,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:12,560 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:12,647 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:29:12,647 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:29:12,652 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:29:12,654 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:29:12,654 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:29:12,655 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:29:12,655 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:29:12,655 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:29:12,660 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:29:12,660 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:29:12,664 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:29:12,671 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-11-30 00:29:12,671 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:29:12,676 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 00:29:12,676 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-30 00:29:12,676 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:29:12,677 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~m~0) = -1*ULTIMATE.start_main_~j~0 + 1*ULTIMATE.start_main_~m~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:29:12,713 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-30 00:29:12,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:12,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:12,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:29:12,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:29:12,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:12,772 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:29:12,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:29:12,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:12,774 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 [2020-11-30 00:29:12,774 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand 3 states. [2020-11-30 00:29:12,783 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 14 states and 20 transitions. Complement of second has 5 states. [2020-11-30 00:29:12,783 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 [2020-11-30 00:29:12,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-30 00:29:12,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-11-30 00:29:12,784 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 2 letters. [2020-11-30 00:29:12,784 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:29:12,784 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-30 00:29:12,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:12,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:12,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:29:12,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:29:12,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:12,843 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:29:12,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:29:12,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:12,845 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2020-11-30 00:29:12,845 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand 3 states. [2020-11-30 00:29:12,862 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 14 states and 20 transitions. Complement of second has 5 states. [2020-11-30 00:29:12,866 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 [2020-11-30 00:29:12,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-30 00:29:12,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-11-30 00:29:12,866 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 2 letters. [2020-11-30 00:29:12,867 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:29:12,867 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-30 00:29:12,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:12,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:12,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:29:12,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:29:12,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:12,913 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:29:12,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:29:12,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:12,914 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 1 loop predicates [2020-11-30 00:29:12,915 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand 3 states. [2020-11-30 00:29:12,930 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 16 states and 23 transitions. Complement of second has 4 states. [2020-11-30 00:29:12,931 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 [2020-11-30 00:29:12,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-30 00:29:12,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-11-30 00:29:12,932 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 2 letters. [2020-11-30 00:29:12,932 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:29:12,932 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 10 letters. Loop has 2 letters. [2020-11-30 00:29:12,933 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:29:12,933 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 4 letters. [2020-11-30 00:29:12,933 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:29:12,934 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 23 transitions. [2020-11-30 00:29:12,935 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-30 00:29:12,936 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 14 states and 19 transitions. [2020-11-30 00:29:12,936 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-11-30 00:29:12,936 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-11-30 00:29:12,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2020-11-30 00:29:12,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:29:12,936 INFO L691 BuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2020-11-30 00:29:12,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2020-11-30 00:29:12,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 7. [2020-11-30 00:29:12,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-11-30 00:29:12,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2020-11-30 00:29:12,938 INFO L714 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2020-11-30 00:29:12,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:12,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:29:12,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:29:12,939 INFO L87 Difference]: Start difference. First operand 7 states and 9 transitions. Second operand 4 states. [2020-11-30 00:29:12,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:12,953 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2020-11-30 00:29:12,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:29:12,954 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2020-11-30 00:29:12,955 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-30 00:29:12,955 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 8 states and 9 transitions. [2020-11-30 00:29:12,955 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-11-30 00:29:12,956 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-11-30 00:29:12,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 9 transitions. [2020-11-30 00:29:12,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:29:12,956 INFO L691 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2020-11-30 00:29:12,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 9 transitions. [2020-11-30 00:29:12,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 6. [2020-11-30 00:29:12,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-11-30 00:29:12,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2020-11-30 00:29:12,957 INFO L714 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2020-11-30 00:29:12,957 INFO L594 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2020-11-30 00:29:12,957 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-30 00:29:12,958 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2020-11-30 00:29:12,958 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-30 00:29:12,958 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:29:12,958 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:29:12,959 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-30 00:29:12,959 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2020-11-30 00:29:12,959 INFO L794 eck$LassoCheckResult]: Stem: 372#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 373#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := 0;main_~j~0 := 0; 369#L21-2 [2020-11-30 00:29:12,959 INFO L796 eck$LassoCheckResult]: Loop: 369#L21-2 assume !!(main_~i~0 < main_~n~0); 370#L21 assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 371#L21-2 assume !!(main_~i~0 < main_~n~0); 368#L21 assume !(main_~j~0 < main_~m~0);main_~j~0 := 0;main_~i~0 := 1 + main_~i~0; 369#L21-2 [2020-11-30 00:29:12,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:12,959 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 2 times [2020-11-30 00:29:12,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:12,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854039807] [2020-11-30 00:29:12,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:12,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:29:12,972 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:29:12,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:29:12,976 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:29:12,977 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:29:12,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:12,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1326601, now seen corresponding path program 1 times [2020-11-30 00:29:12,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:12,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594418974] [2020-11-30 00:29:12,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:12,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:29:12,999 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:29:13,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:29:13,003 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:29:13,004 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:29:13,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:13,005 INFO L82 PathProgramCache]: Analyzing trace with hash 920229996, now seen corresponding path program 2 times [2020-11-30 00:29:13,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:13,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953440645] [2020-11-30 00:29:13,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:13,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:29:13,012 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:29:13,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:29:13,034 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:29:13,036 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:29:13,100 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:29:13,100 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:29:13,100 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:29:13,100 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:29:13,100 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-30 00:29:13,101 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:29:13,101 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:29:13,101 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:29:13,101 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration4_Loop [2020-11-30 00:29:13,101 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:29:13,101 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:29:13,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:13,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:13,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:13,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:13,222 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:29:13,222 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:29:13,227 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-30 00:29:13,227 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:29:13,283 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-30 00:29:13,283 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:29:13,438 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-30 00:29:13,439 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:29:13,439 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:29:13,440 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:29:13,440 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:29:13,440 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:29:13,440 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:29:13,440 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:29:13,440 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:29:13,440 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration4_Loop [2020-11-30 00:29:13,440 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:29:13,440 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:29:13,442 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:13,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:13,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:13,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:13,637 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:29:13,637 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:29:13,645 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:29:13,647 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:29:13,647 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:29:13,647 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:29:13,647 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:29:13,647 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:29:13,648 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:29:13,648 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:29:13,654 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:29:13,674 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-11-30 00:29:13,674 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_25cb03ff-9a6a-4d4f-8f17-76448a68dcb2/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:29:13,682 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 00:29:13,683 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-30 00:29:13,683 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:29:13,683 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:29:13,723 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-30 00:29:13,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:13,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:13,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:29:13,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:29:13,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:13,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:29:13,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:29:13,791 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-30 00:29:13,792 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 [2020-11-30 00:29:13,792 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2 Second operand 3 states. [2020-11-30 00:29:13,818 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2. Second operand 3 states. Result 11 states and 14 transitions. Complement of second has 4 states. [2020-11-30 00:29:13,819 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 [2020-11-30 00:29:13,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-30 00:29:13,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2020-11-30 00:29:13,819 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 2 letters. Loop has 4 letters. [2020-11-30 00:29:13,820 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:29:13,820 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 4 letters. [2020-11-30 00:29:13,820 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:29:13,820 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 2 letters. Loop has 8 letters. [2020-11-30 00:29:13,820 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:29:13,820 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2020-11-30 00:29:13,821 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:29:13,821 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2020-11-30 00:29:13,821 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-30 00:29:13,821 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-30 00:29:13,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-30 00:29:13,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:29:13,822 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:29:13,822 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:29:13,822 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:29:13,822 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-30 00:29:13,822 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:29:13,822 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:29:13,822 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-30 00:29:13,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:29:13 BoogieIcfgContainer [2020-11-30 00:29:13,828 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:29:13,829 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:29:13,829 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:29:13,829 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:29:13,830 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:29:09" (3/4) ... [2020-11-30 00:29:13,833 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 00:29:13,834 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:29:13,835 INFO L168 Benchmark]: Toolchain (without parser) took 5373.26 ms. Allocated memory was 102.8 MB in the beginning and 130.0 MB in the end (delta: 27.3 MB). Free memory was 75.1 MB in the beginning and 92.2 MB in the end (delta: -17.2 MB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:29:13,836 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 102.8 MB. Free memory is still 62.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:29:13,837 INFO L168 Benchmark]: CACSL2BoogieTranslator took 217.23 ms. Allocated memory is still 102.8 MB. Free memory was 74.8 MB in the beginning and 80.3 MB in the end (delta: -5.5 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:29:13,837 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.93 ms. Allocated memory is still 102.8 MB. Free memory was 80.3 MB in the beginning and 78.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:29:13,838 INFO L168 Benchmark]: Boogie Preprocessor took 29.54 ms. Allocated memory is still 102.8 MB. Free memory was 78.8 MB in the beginning and 78.1 MB in the end (delta: 738.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:29:13,839 INFO L168 Benchmark]: RCFGBuilder took 259.31 ms. Allocated memory is still 102.8 MB. Free memory was 77.8 MB in the beginning and 69.8 MB in the end (delta: 8.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:29:13,839 INFO L168 Benchmark]: BuchiAutomizer took 4796.50 ms. Allocated memory was 102.8 MB in the beginning and 130.0 MB in the end (delta: 27.3 MB). Free memory was 69.5 MB in the beginning and 92.2 MB in the end (delta: -22.7 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:29:13,840 INFO L168 Benchmark]: Witness Printer took 4.94 ms. Allocated memory is still 130.0 MB. Free memory is still 92.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:29:13,843 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 102.8 MB. Free memory is still 62.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 217.23 ms. Allocated memory is still 102.8 MB. Free memory was 74.8 MB in the beginning and 80.3 MB in the end (delta: -5.5 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.93 ms. Allocated memory is still 102.8 MB. Free memory was 80.3 MB in the beginning and 78.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.54 ms. Allocated memory is still 102.8 MB. Free memory was 78.8 MB in the beginning and 78.1 MB in the end (delta: 738.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 259.31 ms. Allocated memory is still 102.8 MB. Free memory was 77.8 MB in the beginning and 69.8 MB in the end (delta: 8.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4796.50 ms. Allocated memory was 102.8 MB in the beginning and 130.0 MB in the end (delta: 27.3 MB). Free memory was 69.5 MB in the beginning and 92.2 MB in the end (delta: -22.7 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Witness Printer took 4.94 ms. Allocated memory is still 130.0 MB. Free memory is still 92.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (2 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * j + m and consists of 4 locations. One deterministic module has affine ranking function -1 * j + m and consists of 3 locations. One deterministic module has affine ranking function n + -1 * i and consists of 3 locations. One nondeterministic module has affine ranking function -1 * j + m and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.7s and 5 iterations. TraceHistogramMax:3. Analysis of lassos took 3.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/2 HoareTripleCheckerStatistics: 45 SDtfs, 36 SDslu, 11 SDs, 0 SdLazy, 32 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax182 hnf99 lsp39 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq152 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 24ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...