./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/array02-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/array02-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/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 32bit --witnessprinter.graph.data.programhash 58d4e5463d025a43f4c9f80bcbe28ceb46ed79b1 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:27:15,650 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:27:15,662 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:27:15,739 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:27:15,740 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:27:15,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:27:15,752 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:27:15,758 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:27:15,762 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:27:15,772 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:27:15,773 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:27:15,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:27:15,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:27:15,775 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:27:15,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:27:15,778 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:27:15,780 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:27:15,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:27:15,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:27:15,787 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:27:15,789 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:27:15,791 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:27:15,793 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:27:15,795 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:27:15,799 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:27:15,800 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:27:15,800 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:27:15,802 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:27:15,803 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:27:15,804 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:27:15,805 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:27:15,806 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:27:15,807 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:27:15,809 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:27:15,810 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:27:15,811 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:27:15,812 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:27:15,813 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:27:15,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:27:15,815 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:27:15,816 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:27:15,817 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 18:27:15,848 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:27:15,848 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:27:15,850 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:27:15,850 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:27:15,850 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:27:15,851 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 18:27:15,851 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 18:27:15,851 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 18:27:15,852 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 18:27:15,852 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 18:27:15,852 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 18:27:15,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:27:15,853 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:27:15,853 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 18:27:15,853 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:27:15,854 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:27:15,854 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:27:15,854 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 18:27:15,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 18:27:15,855 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 18:27:15,855 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:27:15,855 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:27:15,856 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 18:27:15,856 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:27:15,856 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 18:27:15,857 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:27:15,857 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:27:15,857 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 18:27:15,858 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:27:15,858 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:27:15,858 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:27:15,858 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 18:27:15,860 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 18:27:15,860 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_897a04ef-a267-409f-88fa-21df43fd8122/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58d4e5463d025a43f4c9f80bcbe28ceb46ed79b1 [2020-11-29 18:27:16,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:27:16,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:27:16,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:27:16,158 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:27:16,159 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:27:16,160 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/array02-alloca-2.i [2020-11-29 18:27:16,270 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/data/6e8f2ebde/95b0dab23feb43b293196469c331da2f/FLAG6ecc369d3 [2020-11-29 18:27:16,970 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:27:16,971 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/sv-benchmarks/c/array-memsafety/array02-alloca-2.i [2020-11-29 18:27:16,985 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/data/6e8f2ebde/95b0dab23feb43b293196469c331da2f/FLAG6ecc369d3 [2020-11-29 18:27:17,276 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/data/6e8f2ebde/95b0dab23feb43b293196469c331da2f [2020-11-29 18:27:17,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:27:17,291 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:27:17,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:27:17,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:27:17,300 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:27:17,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:27:17" (1/1) ... [2020-11-29 18:27:17,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f8fcf78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:27:17, skipping insertion in model container [2020-11-29 18:27:17,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:27:17" (1/1) ... [2020-11-29 18:27:17,313 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:27:17,369 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:27:17,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:27:17,710 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:27:17,753 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:27:17,822 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:27:17,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:27:17 WrapperNode [2020-11-29 18:27:17,826 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:27:17,827 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:27:17,828 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:27:17,829 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:27:17,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:27:17" (1/1) ... [2020-11-29 18:27:17,870 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:27:17" (1/1) ... [2020-11-29 18:27:17,903 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:27:17,905 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:27:17,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:27:17,906 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:27:17,916 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:27:17" (1/1) ... [2020-11-29 18:27:17,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:27:17" (1/1) ... [2020-11-29 18:27:17,930 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:27:17" (1/1) ... [2020-11-29 18:27:17,931 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:27:17" (1/1) ... [2020-11-29 18:27:17,937 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:27:17" (1/1) ... [2020-11-29 18:27:17,953 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:27:17" (1/1) ... [2020-11-29 18:27:17,956 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:27:17" (1/1) ... [2020-11-29 18:27:17,968 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:27:17,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:27:17,970 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:27:17,970 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:27:17,971 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:27:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/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 [2020-11-29 18:27:18,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 18:27:18,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 18:27:18,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:27:18,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 18:27:18,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:27:18,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:27:18,451 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:27:18,452 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-29 18:27:18,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:27:18 BoogieIcfgContainer [2020-11-29 18:27:18,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:27:18,455 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 18:27:18,455 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 18:27:18,458 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 18:27:18,459 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:27:18,460 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 06:27:17" (1/3) ... [2020-11-29 18:27:18,461 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@38e8b8e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:27:18, skipping insertion in model container [2020-11-29 18:27:18,461 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:27:18,461 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:27:17" (2/3) ... [2020-11-29 18:27:18,462 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@38e8b8e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:27:18, skipping insertion in model container [2020-11-29 18:27:18,462 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:27:18,462 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:27:18" (3/3) ... [2020-11-29 18:27:18,463 INFO L373 chiAutomizerObserver]: Analyzing ICFG array02-alloca-2.i [2020-11-29 18:27:18,513 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 18:27:18,514 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 18:27:18,514 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 18:27:18,514 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:27:18,514 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:27:18,515 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 18:27:18,515 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:27:18,524 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 18:27:18,545 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2020-11-29 18:27:18,574 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-11-29 18:27:18,575 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:27:18,575 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:27:18,582 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-29 18:27:18,583 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:27:18,583 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 18:27:18,583 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2020-11-29 18:27:18,592 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-11-29 18:27:18,593 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:27:18,593 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:27:18,593 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-29 18:27:18,593 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:27:18,599 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9#L-1true havoc main_#res;havoc main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet14, main_#t~post13, main_~k~0, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet11;havoc main_#t~nondet11; 14#L530true assume !(main_~array_size~0 < 1 || main_~array_size~0 >= 536870911); 16#L530-2true call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;main_~k~0 := 0; 10#L535-3true [2020-11-29 18:27:18,599 INFO L796 eck$LassoCheckResult]: Loop: 10#L535-3true assume !!(main_~k~0 < main_~array_size~0);call write~int(main_#t~nondet14, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~k~0, 4);havoc main_#t~nondet14; 7#L535-2true main_#t~post13 := main_~k~0;main_~k~0 := 1 + main_#t~post13;havoc main_#t~post13; 10#L535-3true [2020-11-29 18:27:18,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:18,606 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2020-11-29 18:27:18,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:27:18,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849195962] [2020-11-29 18:27:18,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:27:18,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:18,726 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:18,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:18,741 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:18,763 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:27:18,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:18,765 INFO L82 PathProgramCache]: Analyzing trace with hash 1507, now seen corresponding path program 1 times [2020-11-29 18:27:18,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:27:18,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109114088] [2020-11-29 18:27:18,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:27:18,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:18,780 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:18,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:18,789 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:18,792 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:27:18,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:18,795 INFO L82 PathProgramCache]: Analyzing trace with hash 889568455, now seen corresponding path program 1 times [2020-11-29 18:27:18,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:27:18,796 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56705318] [2020-11-29 18:27:18,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:27:18,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:18,822 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:18,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:18,840 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:18,846 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:27:19,110 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2020-11-29 18:27:19,191 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:27:19,197 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:27:19,197 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:27:19,198 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:27:19,198 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:27:19,198 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:19,198 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:27:19,199 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:27:19,199 INFO L133 ssoRankerPreferences]: Filename of dumped script: array02-alloca-2.i_Iteration1_Lasso [2020-11-29 18:27:19,199 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:27:19,200 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:27:19,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:19,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:19,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:19,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:19,267 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:19,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:19,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:19,513 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2020-11-29 18:27:19,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:19,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:19,952 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:27:19,961 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/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) [2020-11-29 18:27:19,978 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 [2020-11-29 18:27:19,981 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:19,981 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:27:19,982 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:19,982 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:19,983 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:19,986 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:27:19,987 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:19,993 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/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) [2020-11-29 18:27:20,046 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 [2020-11-29 18:27:20,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:20,048 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:27:20,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:20,049 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:20,049 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:20,051 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:27:20,051 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:20,056 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/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) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:20,092 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 [2020-11-29 18:27:20,093 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:20,093 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:27:20,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:20,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:20,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:20,094 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:27:20,095 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:27:20,109 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/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) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:20,146 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 [2020-11-29 18:27:20,147 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:20,147 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:20,148 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:20,148 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:20,152 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:27:20,152 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:27:20,161 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/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) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:20,202 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 [2020-11-29 18:27:20,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:20,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:20,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:20,204 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:20,208 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:27:20,209 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:27:20,217 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/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) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:20,251 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 [2020-11-29 18:27:20,253 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:20,253 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:20,253 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:20,254 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:20,258 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:27:20,258 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:27:20,265 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/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) [2020-11-29 18:27:20,319 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 [2020-11-29 18:27:20,321 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:20,321 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:20,322 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:20,322 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:20,328 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:27:20,328 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:20,337 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/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) [2020-11-29 18:27:20,387 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 [2020-11-29 18:27:20,390 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:20,390 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:20,391 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:20,391 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:20,408 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:27:20,408 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:27:20,432 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:27:20,691 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2020-11-29 18:27:20,692 INFO L444 ModelExtractionUtils]: 9 out of 22 variables were initially zero. Simplification set additionally 9 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/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) [2020-11-29 18:27:20,706 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:20,710 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-29 18:27:20,711 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:27:20,711 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0, v_rep(select #length ULTIMATE.start_main_#t~malloc12.base)_1) = -4*ULTIMATE.start_main_~k~0 + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc12.base)_1 Supporting invariants [1*ULTIMATE.start_main_~numbers~0.offset >= 0] [2020-11-29 18:27:20,775 INFO L297 tatePredicateManager]: 2 out of 4 supporting invariants were superfluous and have been removed [2020-11-29 18:27:20,791 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 18:27:20,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:20,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:27:20,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 18:27:20,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:27:20,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:27:20,878 WARN L261 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 18:27:20,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:27:20,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:27:20,941 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 [2020-11-29 18:27:20,942 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states. Second operand 3 states. [2020-11-29 18:27:21,087 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states.. Second operand 3 states. Result 38 states and 58 transitions. Complement of second has 8 states. [2020-11-29 18:27:21,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-29 18:27:21,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 18:27:21,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 38 transitions. [2020-11-29 18:27:21,095 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 38 transitions. Stem has 4 letters. Loop has 2 letters. [2020-11-29 18:27:21,096 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:27:21,097 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 38 transitions. Stem has 6 letters. Loop has 2 letters. [2020-11-29 18:27:21,097 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:27:21,097 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 38 transitions. Stem has 4 letters. Loop has 4 letters. [2020-11-29 18:27:21,098 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:27:21,099 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 58 transitions. [2020-11-29 18:27:21,103 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-11-29 18:27:21,107 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 14 states and 19 transitions. [2020-11-29 18:27:21,109 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-11-29 18:27:21,109 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-11-29 18:27:21,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2020-11-29 18:27:21,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:27:21,110 INFO L691 BuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2020-11-29 18:27:21,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2020-11-29 18:27:21,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-11-29 18:27:21,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-11-29 18:27:21,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 19 transitions. [2020-11-29 18:27:21,134 INFO L714 BuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2020-11-29 18:27:21,135 INFO L594 BuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2020-11-29 18:27:21,135 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 18:27:21,135 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 19 transitions. [2020-11-29 18:27:21,136 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-11-29 18:27:21,136 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:27:21,136 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:27:21,137 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 18:27:21,137 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-11-29 18:27:21,140 INFO L794 eck$LassoCheckResult]: Stem: 134#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 130#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet14, main_#t~post13, main_~k~0, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet11;havoc main_#t~nondet11; 131#L530 assume !(main_~array_size~0 < 1 || main_~array_size~0 >= 536870911); 135#L530-2 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;main_~k~0 := 0; 132#L535-3 assume !(main_~k~0 < main_~array_size~0); 133#L535-4 test_fun_#in~a.base, test_fun_#in~a.offset, test_fun_#in~N := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc test_fun_#t~mem4, test_fun_#t~post5, test_fun_#t~post6, test_fun_#t~mem3, test_fun_#t~mem8, test_fun_#t~post9, test_fun_#t~post10, test_fun_#t~mem7, test_fun_#t~post2, test_fun_~a.base, test_fun_~a.offset, test_fun_~N, test_fun_~i~0, test_fun_~pos~0, test_fun_~neg~0;test_fun_~a.base, test_fun_~a.offset := test_fun_#in~a.base, test_fun_#in~a.offset;test_fun_~N := test_fun_#in~N;havoc test_fun_~i~0;test_fun_~pos~0 := 0;test_fun_~neg~0 := 0;test_fun_~i~0 := 0; 125#L517-3 [2020-11-29 18:27:21,140 INFO L796 eck$LassoCheckResult]: Loop: 125#L517-3 assume !!(test_fun_~i~0 < test_fun_~N); 122#L518-3 call test_fun_#t~mem3 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 123#L518-1 assume !(test_fun_#t~mem3 < 0);havoc test_fun_#t~mem3; 129#L522-2 call test_fun_#t~mem7 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 128#L522 assume !(test_fun_#t~mem7 > 0);havoc test_fun_#t~mem7; 124#L517-2 test_fun_#t~post2 := test_fun_~i~0;test_fun_~i~0 := 1 + test_fun_#t~post2;havoc test_fun_#t~post2; 125#L517-3 [2020-11-29 18:27:21,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:21,141 INFO L82 PathProgramCache]: Analyzing trace with hash 889568397, now seen corresponding path program 1 times [2020-11-29 18:27:21,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:27:21,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50588700] [2020-11-29 18:27:21,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:27:21,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:27:21,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:27:21,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50588700] [2020-11-29 18:27:21,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:27:21,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:27:21,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317560359] [2020-11-29 18:27:21,298 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 18:27:21,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:21,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1809463733, now seen corresponding path program 1 times [2020-11-29 18:27:21,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:27:21,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078777799] [2020-11-29 18:27:21,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:27:21,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:21,325 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:21,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:21,333 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:21,343 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:27:21,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:27:21,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:27:21,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:27:21,408 INFO L87 Difference]: Start difference. First operand 14 states and 19 transitions. cyclomatic complexity: 7 Second operand 4 states. [2020-11-29 18:27:21,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:27:21,447 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2020-11-29 18:27:21,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 18:27:21,449 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2020-11-29 18:27:21,450 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-11-29 18:27:21,450 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 19 transitions. [2020-11-29 18:27:21,451 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2020-11-29 18:27:21,451 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-11-29 18:27:21,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 19 transitions. [2020-11-29 18:27:21,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:27:21,451 INFO L691 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2020-11-29 18:27:21,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 19 transitions. [2020-11-29 18:27:21,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2020-11-29 18:27:21,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-11-29 18:27:21,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 18 transitions. [2020-11-29 18:27:21,453 INFO L714 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2020-11-29 18:27:21,453 INFO L594 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2020-11-29 18:27:21,453 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 18:27:21,454 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 18 transitions. [2020-11-29 18:27:21,454 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-11-29 18:27:21,455 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:27:21,455 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:27:21,455 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:27:21,455 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-11-29 18:27:21,456 INFO L794 eck$LassoCheckResult]: Stem: 170#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 166#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet14, main_#t~post13, main_~k~0, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet11;havoc main_#t~nondet11; 167#L530 assume !(main_~array_size~0 < 1 || main_~array_size~0 >= 536870911); 171#L530-2 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;main_~k~0 := 0; 168#L535-3 assume !!(main_~k~0 < main_~array_size~0);call write~int(main_#t~nondet14, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~k~0, 4);havoc main_#t~nondet14; 162#L535-2 main_#t~post13 := main_~k~0;main_~k~0 := 1 + main_#t~post13;havoc main_#t~post13; 163#L535-3 assume !(main_~k~0 < main_~array_size~0); 169#L535-4 test_fun_#in~a.base, test_fun_#in~a.offset, test_fun_#in~N := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc test_fun_#t~mem4, test_fun_#t~post5, test_fun_#t~post6, test_fun_#t~mem3, test_fun_#t~mem8, test_fun_#t~post9, test_fun_#t~post10, test_fun_#t~mem7, test_fun_#t~post2, test_fun_~a.base, test_fun_~a.offset, test_fun_~N, test_fun_~i~0, test_fun_~pos~0, test_fun_~neg~0;test_fun_~a.base, test_fun_~a.offset := test_fun_#in~a.base, test_fun_#in~a.offset;test_fun_~N := test_fun_#in~N;havoc test_fun_~i~0;test_fun_~pos~0 := 0;test_fun_~neg~0 := 0;test_fun_~i~0 := 0; 161#L517-3 [2020-11-29 18:27:21,456 INFO L796 eck$LassoCheckResult]: Loop: 161#L517-3 assume !!(test_fun_~i~0 < test_fun_~N); 158#L518-3 call test_fun_#t~mem3 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 159#L518-1 assume !(test_fun_#t~mem3 < 0);havoc test_fun_#t~mem3; 165#L522-2 call test_fun_#t~mem7 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 164#L522 assume !(test_fun_#t~mem7 > 0);havoc test_fun_#t~mem7; 160#L517-2 test_fun_#t~post2 := test_fun_~i~0;test_fun_~i~0 := 1 + test_fun_#t~post2;havoc test_fun_#t~post2; 161#L517-3 [2020-11-29 18:27:21,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:21,456 INFO L82 PathProgramCache]: Analyzing trace with hash 176793839, now seen corresponding path program 1 times [2020-11-29 18:27:21,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:27:21,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142893802] [2020-11-29 18:27:21,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:27:21,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:21,482 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:21,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:21,504 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:21,517 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:27:21,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:21,517 INFO L82 PathProgramCache]: Analyzing trace with hash 1809463733, now seen corresponding path program 2 times [2020-11-29 18:27:21,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:27:21,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122807207] [2020-11-29 18:27:21,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:27:21,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:21,536 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:21,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:21,553 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:21,555 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:27:21,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:21,556 INFO L82 PathProgramCache]: Analyzing trace with hash -258934749, now seen corresponding path program 1 times [2020-11-29 18:27:21,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:27:21,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892050280] [2020-11-29 18:27:21,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:27:21,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:21,589 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:21,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:21,627 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:21,633 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:27:21,922 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 70 [2020-11-29 18:27:22,033 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:27:22,034 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:27:22,034 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:27:22,034 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:27:22,034 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:27:22,034 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:22,034 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:27:22,034 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:27:22,034 INFO L133 ssoRankerPreferences]: Filename of dumped script: array02-alloca-2.i_Iteration3_Lasso [2020-11-29 18:27:22,034 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:27:22,034 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:27:22,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:22,045 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:22,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:22,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:22,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:22,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:22,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:22,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:22,073 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:22,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:22,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:22,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:22,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:22,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:22,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:22,303 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-11-29 18:27:22,344 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:22,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:22,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:22,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:22,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:22,363 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:22,615 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2020-11-29 18:27:22,904 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:27:22,904 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/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) [2020-11-29 18:27:22,919 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 [2020-11-29 18:27:22,920 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:22,920 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:27:22,921 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:22,921 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:22,921 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:22,922 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:27:22,922 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:22,924 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/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) [2020-11-29 18:27:22,976 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 [2020-11-29 18:27:22,977 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:22,978 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:27:22,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:22,978 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:22,978 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:22,979 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:27:22,979 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:22,981 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/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) [2020-11-29 18:27:23,031 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 [2020-11-29 18:27:23,033 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:23,033 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:27:23,033 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:23,033 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:23,033 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:23,035 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:27:23,035 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:23,037 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/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) [2020-11-29 18:27:23,085 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 [2020-11-29 18:27:23,086 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:23,087 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:27:23,087 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:23,087 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:23,087 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:23,088 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:27:23,088 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:23,089 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/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 [2020-11-29 18:27:23,129 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 [2020-11-29 18:27:23,130 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:23,130 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:23,130 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:23,130 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:23,133 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:27:23,133 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:27:23,140 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/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) [2020-11-29 18:27:23,192 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 [2020-11-29 18:27:23,194 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:23,194 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:27:23,194 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:23,194 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:23,195 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:23,196 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:27:23,196 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:23,199 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/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 [2020-11-29 18:27:23,257 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 [2020-11-29 18:27:23,259 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:23,259 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:27:23,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:23,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:23,259 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:23,260 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:27:23,260 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:27:23,262 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/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 [2020-11-29 18:27:23,293 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 [2020-11-29 18:27:23,294 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:23,295 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:23,295 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:23,295 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:23,297 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:27:23,298 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:27:23,307 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/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) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:23,347 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 [2020-11-29 18:27:23,348 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:23,349 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:27:23,349 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:23,349 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:23,349 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:23,349 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:27:23,349 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:27:23,353 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:23,386 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 [2020-11-29 18:27:23,388 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:23,388 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:27:23,388 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:23,388 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:23,388 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:23,389 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:27:23,389 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:27:23,390 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/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 [2020-11-29 18:27:23,418 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 [2020-11-29 18:27:23,419 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:23,420 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:23,420 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:23,420 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:23,423 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:27:23,423 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:27:23,434 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/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 [2020-11-29 18:27:23,472 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 [2020-11-29 18:27:23,474 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:23,474 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:27:23,474 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:23,474 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:23,475 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:23,475 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:27:23,475 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:27:23,477 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/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) [2020-11-29 18:27:23,515 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 [2020-11-29 18:27:23,516 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:23,516 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:23,517 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:23,517 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:23,519 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:27:23,519 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:27:23,523 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/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) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:23,565 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 [2020-11-29 18:27:23,566 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:23,566 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:23,567 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:23,567 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:23,570 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:27:23,571 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:27:23,575 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/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 [2020-11-29 18:27:23,618 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 [2020-11-29 18:27:23,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:23,620 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:23,620 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:23,620 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:23,623 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:27:23,623 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:27:23,631 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/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) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:23,657 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 [2020-11-29 18:27:23,659 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:23,659 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:23,659 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:23,659 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:23,663 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:27:23,663 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:27:23,668 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/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 [2020-11-29 18:27:23,694 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 [2020-11-29 18:27:23,696 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:23,696 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:23,696 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:23,696 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:23,698 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:27:23,698 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:27:23,701 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/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) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:23,729 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 [2020-11-29 18:27:23,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:23,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:23,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:23,731 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:23,741 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:27:23,741 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:27:23,762 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:27:23,819 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2020-11-29 18:27:23,819 INFO L444 ModelExtractionUtils]: 6 out of 37 variables were initially zero. Simplification set additionally 27 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:27:23,823 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:23,826 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-29 18:27:23,826 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:27:23,826 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc12.base)_2, ULTIMATE.start_test_fun_~i~0) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc12.base)_2 - 4*ULTIMATE.start_test_fun_~i~0 Supporting invariants [1*ULTIMATE.start_test_fun_~a.offset >= 0] [2020-11-29 18:27:23,882 INFO L297 tatePredicateManager]: 3 out of 5 supporting invariants were superfluous and have been removed [2020-11-29 18:27:23,887 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 18:27:23,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:23,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:27:23,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-29 18:27:23,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:27:24,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:27:24,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 18:27:24,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:27:24,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:27:24,056 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-11-29 18:27:24,056 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 18 transitions. cyclomatic complexity: 6 Second operand 5 states. [2020-11-29 18:27:24,130 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 18 transitions. cyclomatic complexity: 6. Second operand 5 states. Result 22 states and 29 transitions. Complement of second has 7 states. [2020-11-29 18:27:24,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-29 18:27:24,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-29 18:27:24,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2020-11-29 18:27:24,131 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 8 letters. Loop has 6 letters. [2020-11-29 18:27:24,131 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:27:24,132 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 14 letters. Loop has 6 letters. [2020-11-29 18:27:24,132 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:27:24,132 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 8 letters. Loop has 12 letters. [2020-11-29 18:27:24,132 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:27:24,133 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 29 transitions. [2020-11-29 18:27:24,134 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-29 18:27:24,135 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 21 states and 28 transitions. [2020-11-29 18:27:24,135 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-11-29 18:27:24,135 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-11-29 18:27:24,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 28 transitions. [2020-11-29 18:27:24,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:27:24,136 INFO L691 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2020-11-29 18:27:24,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 28 transitions. [2020-11-29 18:27:24,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2020-11-29 18:27:24,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-29 18:27:24,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 26 transitions. [2020-11-29 18:27:24,139 INFO L714 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2020-11-29 18:27:24,139 INFO L594 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2020-11-29 18:27:24,139 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 18:27:24,139 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 26 transitions. [2020-11-29 18:27:24,140 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-29 18:27:24,141 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:27:24,141 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:27:24,141 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:27:24,142 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:27:24,142 INFO L794 eck$LassoCheckResult]: Stem: 304#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 302#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet14, main_#t~post13, main_~k~0, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet11;havoc main_#t~nondet11; 303#L530 assume !(main_~array_size~0 < 1 || main_~array_size~0 >= 536870911); 305#L530-2 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;main_~k~0 := 0; 300#L535-3 assume !!(main_~k~0 < main_~array_size~0);call write~int(main_#t~nondet14, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~k~0, 4);havoc main_#t~nondet14; 294#L535-2 main_#t~post13 := main_~k~0;main_~k~0 := 1 + main_#t~post13;havoc main_#t~post13; 295#L535-3 assume !(main_~k~0 < main_~array_size~0); 301#L535-4 test_fun_#in~a.base, test_fun_#in~a.offset, test_fun_#in~N := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc test_fun_#t~mem4, test_fun_#t~post5, test_fun_#t~post6, test_fun_#t~mem3, test_fun_#t~mem8, test_fun_#t~post9, test_fun_#t~post10, test_fun_#t~mem7, test_fun_#t~post2, test_fun_~a.base, test_fun_~a.offset, test_fun_~N, test_fun_~i~0, test_fun_~pos~0, test_fun_~neg~0;test_fun_~a.base, test_fun_~a.offset := test_fun_#in~a.base, test_fun_#in~a.offset;test_fun_~N := test_fun_#in~N;havoc test_fun_~i~0;test_fun_~pos~0 := 0;test_fun_~neg~0 := 0;test_fun_~i~0 := 0; 293#L517-3 assume !!(test_fun_~i~0 < test_fun_~N); 287#L518-3 [2020-11-29 18:27:24,142 INFO L796 eck$LassoCheckResult]: Loop: 287#L518-3 call test_fun_#t~mem3 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 288#L518-1 assume !!(test_fun_#t~mem3 < 0);havoc test_fun_#t~mem3;call test_fun_#t~mem4 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);test_fun_#t~post5 := test_fun_#t~mem4;call write~int(1 + test_fun_#t~post5, test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);havoc test_fun_#t~post5;havoc test_fun_#t~mem4;test_fun_#t~post6 := test_fun_~neg~0;test_fun_~neg~0 := 1 + test_fun_#t~post6;havoc test_fun_#t~post6; 287#L518-3 [2020-11-29 18:27:24,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:24,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1185641744, now seen corresponding path program 1 times [2020-11-29 18:27:24,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:27:24,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691043012] [2020-11-29 18:27:24,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:27:24,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:24,156 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:24,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:24,168 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:24,172 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:27:24,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:24,173 INFO L82 PathProgramCache]: Analyzing trace with hash 2118, now seen corresponding path program 1 times [2020-11-29 18:27:24,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:27:24,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48773244] [2020-11-29 18:27:24,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:27:24,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:24,180 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:24,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:24,185 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:24,187 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:27:24,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:24,188 INFO L82 PathProgramCache]: Analyzing trace with hash 1235383701, now seen corresponding path program 1 times [2020-11-29 18:27:24,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:27:24,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138739556] [2020-11-29 18:27:24,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:27:24,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:24,208 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:24,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:24,232 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:24,244 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:27:24,492 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2020-11-29 18:27:24,595 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:27:24,595 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:27:24,595 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:27:24,595 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:27:24,595 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:27:24,595 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:24,595 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:27:24,595 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:27:24,596 INFO L133 ssoRankerPreferences]: Filename of dumped script: array02-alloca-2.i_Iteration4_Lasso [2020-11-29 18:27:24,596 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:27:24,596 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:27:24,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:24,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:24,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:24,611 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:24,615 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:24,617 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:24,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:24,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:24,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:24,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:24,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:24,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:24,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:24,663 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:24,853 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 53 [2020-11-29 18:27:24,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:24,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:24,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:24,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:24,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:24,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:24,972 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:25,199 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-11-29 18:27:25,493 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:27:25,501 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:27:25,511 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 [2020-11-29 18:27:25,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:25,513 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:27:25,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:25,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:25,513 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:25,514 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:27:25,514 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:25,516 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 31 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:25,543 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 [2020-11-29 18:27:25,545 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:25,545 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:27:25,545 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:25,545 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:25,545 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:25,546 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:27:25,546 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:27:25,547 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 32 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:25,577 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 [2020-11-29 18:27:25,579 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:25,579 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:27:25,579 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:25,579 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:25,579 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:25,580 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:27:25,580 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:27:25,581 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 33 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:25,608 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 [2020-11-29 18:27:25,609 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:25,610 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:25,610 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:25,610 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:25,612 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:27:25,612 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:27:25,621 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 34 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:25,667 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 [2020-11-29 18:27:25,668 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:25,669 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:27:25,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:25,669 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:25,669 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:25,669 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:27:25,669 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:27:25,671 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 35 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:25,697 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 [2020-11-29 18:27:25,699 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:25,699 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:25,699 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:25,699 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:25,701 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:27:25,701 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:27:25,706 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 36 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:25,749 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 [2020-11-29 18:27:25,751 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:25,751 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:27:25,751 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:25,751 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:25,751 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:25,752 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:27:25,752 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:27:25,753 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 37 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 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:25,778 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 [2020-11-29 18:27:25,780 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:25,780 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:27:25,780 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:25,780 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:25,780 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:25,780 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:27:25,780 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:27:25,785 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 38 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 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:25,810 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 [2020-11-29 18:27:25,811 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:25,811 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:27:25,811 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:25,811 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:25,811 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:25,812 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:27:25,812 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:27:25,813 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 39 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 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:25,838 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 [2020-11-29 18:27:25,840 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:25,840 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:25,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:25,840 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:25,842 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:27:25,842 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:27:25,857 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:27:25,905 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 [2020-11-29 18:27:25,907 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:25,908 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:25,908 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:25,908 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:25,937 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:27:25,937 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:27:25,942 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:27:25,986 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 [2020-11-29 18:27:25,988 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:25,988 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:27:25,988 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:25,989 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:25,989 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:25,991 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:27:25,991 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:25,994 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 42 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 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:26,021 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 [2020-11-29 18:27:26,023 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:26,023 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:27:26,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:26,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:26,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:26,024 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:27:26,024 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:27:26,025 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 43 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 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:26,055 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 [2020-11-29 18:27:26,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:26,057 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:26,057 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:26,057 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:26,063 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:27:26,063 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:27:26,080 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:27:26,094 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-11-29 18:27:26,094 INFO L444 ModelExtractionUtils]: 3 out of 10 variables were initially zero. Simplification set additionally 5 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:27:26,103 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:26,108 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 18:27:26,109 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:27:26,109 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~numbers~0.base) (+ (* ULTIMATE.start_main_~k~0 4) ULTIMATE.start_main_~numbers~0.offset (- 4)))_1) = -1*v_rep(select (select #memory_int ULTIMATE.start_main_~numbers~0.base) (+ (* ULTIMATE.start_main_~k~0 4) ULTIMATE.start_main_~numbers~0.offset (- 4)))_1 Supporting invariants [] [2020-11-29 18:27:26,182 INFO L297 tatePredicateManager]: 3 out of 6 supporting invariants were superfluous and have been removed [2020-11-29 18:27:26,199 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-29 18:27:26,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:26,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:27:26,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 18 conjunts are in the unsatisfiable core [2020-11-29 18:27:26,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:27:26,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:27:26,366 WARN L261 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-29 18:27:26,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:27:26,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:27:26,405 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2020-11-29 18:27:26,405 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 26 transitions. cyclomatic complexity: 11 Second operand 6 states. [2020-11-29 18:27:26,525 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 26 transitions. cyclomatic complexity: 11. Second operand 6 states. Result 44 states and 58 transitions. Complement of second has 11 states. [2020-11-29 18:27:26,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 4 stem states 2 non-accepting loop states 2 accepting loop states [2020-11-29 18:27:26,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-11-29 18:27:26,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 22 transitions. [2020-11-29 18:27:26,527 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 22 transitions. Stem has 9 letters. Loop has 2 letters. [2020-11-29 18:27:26,527 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:27:26,527 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 22 transitions. Stem has 11 letters. Loop has 2 letters. [2020-11-29 18:27:26,527 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:27:26,527 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 22 transitions. Stem has 9 letters. Loop has 4 letters. [2020-11-29 18:27:26,527 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:27:26,527 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 58 transitions. [2020-11-29 18:27:26,529 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-29 18:27:26,531 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 39 states and 53 transitions. [2020-11-29 18:27:26,532 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2020-11-29 18:27:26,532 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2020-11-29 18:27:26,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 53 transitions. [2020-11-29 18:27:26,533 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:27:26,533 INFO L691 BuchiCegarLoop]: Abstraction has 39 states and 53 transitions. [2020-11-29 18:27:26,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 53 transitions. [2020-11-29 18:27:26,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 30. [2020-11-29 18:27:26,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-29 18:27:26,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 42 transitions. [2020-11-29 18:27:26,538 INFO L714 BuchiCegarLoop]: Abstraction has 30 states and 42 transitions. [2020-11-29 18:27:26,538 INFO L594 BuchiCegarLoop]: Abstraction has 30 states and 42 transitions. [2020-11-29 18:27:26,538 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-29 18:27:26,538 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 42 transitions. [2020-11-29 18:27:26,539 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-29 18:27:26,539 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:27:26,539 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:27:26,540 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:27:26,540 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:27:26,540 INFO L794 eck$LassoCheckResult]: Stem: 470#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 465#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet14, main_#t~post13, main_~k~0, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet11;havoc main_#t~nondet11; 466#L530 assume !(main_~array_size~0 < 1 || main_~array_size~0 >= 536870911); 471#L530-2 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;main_~k~0 := 0; 467#L535-3 assume !!(main_~k~0 < main_~array_size~0);call write~int(main_#t~nondet14, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~k~0, 4);havoc main_#t~nondet14; 468#L535-2 main_#t~post13 := main_~k~0;main_~k~0 := 1 + main_#t~post13;havoc main_#t~post13; 479#L535-3 assume !!(main_~k~0 < main_~array_size~0);call write~int(main_#t~nondet14, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~k~0, 4);havoc main_#t~nondet14; 459#L535-2 main_#t~post13 := main_~k~0;main_~k~0 := 1 + main_#t~post13;havoc main_#t~post13; 460#L535-3 assume !(main_~k~0 < main_~array_size~0); 469#L535-4 test_fun_#in~a.base, test_fun_#in~a.offset, test_fun_#in~N := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc test_fun_#t~mem4, test_fun_#t~post5, test_fun_#t~post6, test_fun_#t~mem3, test_fun_#t~mem8, test_fun_#t~post9, test_fun_#t~post10, test_fun_#t~mem7, test_fun_#t~post2, test_fun_~a.base, test_fun_~a.offset, test_fun_~N, test_fun_~i~0, test_fun_~pos~0, test_fun_~neg~0;test_fun_~a.base, test_fun_~a.offset := test_fun_#in~a.base, test_fun_#in~a.offset;test_fun_~N := test_fun_#in~N;havoc test_fun_~i~0;test_fun_~pos~0 := 0;test_fun_~neg~0 := 0;test_fun_~i~0 := 0; 457#L517-3 assume !!(test_fun_~i~0 < test_fun_~N); 452#L518-3 [2020-11-29 18:27:26,541 INFO L796 eck$LassoCheckResult]: Loop: 452#L518-3 call test_fun_#t~mem3 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 453#L518-1 assume !!(test_fun_#t~mem3 < 0);havoc test_fun_#t~mem3;call test_fun_#t~mem4 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);test_fun_#t~post5 := test_fun_#t~mem4;call write~int(1 + test_fun_#t~post5, test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);havoc test_fun_#t~post5;havoc test_fun_#t~mem4;test_fun_#t~post6 := test_fun_~neg~0;test_fun_~neg~0 := 1 + test_fun_#t~post6;havoc test_fun_#t~post6; 452#L518-3 [2020-11-29 18:27:26,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:26,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1237095790, now seen corresponding path program 2 times [2020-11-29 18:27:26,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:27:26,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776103309] [2020-11-29 18:27:26,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:27:26,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:26,563 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:26,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:26,574 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:26,578 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:27:26,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:26,578 INFO L82 PathProgramCache]: Analyzing trace with hash 2118, now seen corresponding path program 2 times [2020-11-29 18:27:26,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:27:26,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018375700] [2020-11-29 18:27:26,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:27:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:26,584 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:26,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:26,588 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:26,590 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:27:26,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:26,590 INFO L82 PathProgramCache]: Analyzing trace with hash -856885645, now seen corresponding path program 2 times [2020-11-29 18:27:26,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:27:26,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177811668] [2020-11-29 18:27:26,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:27:26,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:26,615 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:26,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:26,642 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:26,646 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:27:26,978 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 86 [2020-11-29 18:27:27,062 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:27:27,063 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:27:27,063 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:27:27,063 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:27:27,063 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:27:27,063 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:27,063 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:27:27,063 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:27:27,063 INFO L133 ssoRankerPreferences]: Filename of dumped script: array02-alloca-2.i_Iteration5_Lasso [2020-11-29 18:27:27,063 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:27:27,063 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:27:27,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:27,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:27,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:27,223 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-11-29 18:27:27,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:27,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:27,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:27,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:27,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:27,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:27,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:27,322 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:27,325 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:27,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:27,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:27,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:27,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:27,344 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:27,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:27,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:27,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:27,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:27,493 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2020-11-29 18:27:27,722 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:27:27,722 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 45 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 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:27,734 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 [2020-11-29 18:27:27,736 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:27,736 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:27:27,736 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:27,736 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:27,736 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:27,737 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:27:27,737 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:27:27,738 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 46 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 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:27,764 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 [2020-11-29 18:27:27,765 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:27,766 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:27:27,766 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:27,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:27,766 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:27,766 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:27:27,766 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:27:27,767 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 47 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 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:27,793 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 [2020-11-29 18:27:27,794 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:27,794 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:27:27,795 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:27,795 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:27,795 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:27,796 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:27:27,796 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:27:27,797 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:27:27,800 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 18:27:27,800 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 48 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 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:27,803 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 18:27:27,803 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 18:27:27,803 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:27:27,803 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~a.base) (+ (* ULTIMATE.start_test_fun_~i~0 4) ULTIMATE.start_test_fun_~a.offset))_3) = -1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~a.base) (+ (* ULTIMATE.start_test_fun_~i~0 4) ULTIMATE.start_test_fun_~a.offset))_3 Supporting invariants [] [2020-11-29 18:27:27,838 INFO L297 tatePredicateManager]: 5 out of 5 supporting invariants were superfluous and have been removed [2020-11-29 18:27:27,840 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-29 18:27:27,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:27,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:27:27,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 18:27:27,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:27:27,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:27:27,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 18:27:27,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:27:27,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:27:27,932 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 [2020-11-29 18:27:27,932 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 42 transitions. cyclomatic complexity: 18 Second operand 3 states. [2020-11-29 18:27:27,976 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 42 transitions. cyclomatic complexity: 18. Second operand 3 states. Result 51 states and 71 transitions. Complement of second has 7 states. [2020-11-29 18:27:27,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-29 18:27:27,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 18:27:27,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2020-11-29 18:27:27,977 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 2 letters. [2020-11-29 18:27:27,978 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:27:27,978 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 13 letters. Loop has 2 letters. [2020-11-29 18:27:27,978 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:27:27,978 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 4 letters. [2020-11-29 18:27:27,978 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:27:27,978 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 71 transitions. [2020-11-29 18:27:27,982 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-29 18:27:27,986 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 42 states and 58 transitions. [2020-11-29 18:27:27,986 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2020-11-29 18:27:27,986 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2020-11-29 18:27:27,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 58 transitions. [2020-11-29 18:27:27,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:27:27,986 INFO L691 BuchiCegarLoop]: Abstraction has 42 states and 58 transitions. [2020-11-29 18:27:27,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 58 transitions. [2020-11-29 18:27:27,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 26. [2020-11-29 18:27:27,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-11-29 18:27:27,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 36 transitions. [2020-11-29 18:27:27,989 INFO L714 BuchiCegarLoop]: Abstraction has 26 states and 36 transitions. [2020-11-29 18:27:27,989 INFO L594 BuchiCegarLoop]: Abstraction has 26 states and 36 transitions. [2020-11-29 18:27:27,989 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-29 18:27:27,989 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 36 transitions. [2020-11-29 18:27:27,989 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-29 18:27:27,991 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:27:27,991 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:27:27,992 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:27:27,992 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:27:27,992 INFO L794 eck$LassoCheckResult]: Stem: 634#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 630#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet14, main_#t~post13, main_~k~0, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet11;havoc main_#t~nondet11; 631#L530 assume !(main_~array_size~0 < 1 || main_~array_size~0 >= 536870911); 635#L530-2 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;main_~k~0 := 0; 632#L535-3 assume !!(main_~k~0 < main_~array_size~0);call write~int(main_#t~nondet14, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~k~0, 4);havoc main_#t~nondet14; 624#L535-2 main_#t~post13 := main_~k~0;main_~k~0 := 1 + main_#t~post13;havoc main_#t~post13; 625#L535-3 assume !(main_~k~0 < main_~array_size~0); 633#L535-4 test_fun_#in~a.base, test_fun_#in~a.offset, test_fun_#in~N := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc test_fun_#t~mem4, test_fun_#t~post5, test_fun_#t~post6, test_fun_#t~mem3, test_fun_#t~mem8, test_fun_#t~post9, test_fun_#t~post10, test_fun_#t~mem7, test_fun_#t~post2, test_fun_~a.base, test_fun_~a.offset, test_fun_~N, test_fun_~i~0, test_fun_~pos~0, test_fun_~neg~0;test_fun_~a.base, test_fun_~a.offset := test_fun_#in~a.base, test_fun_#in~a.offset;test_fun_~N := test_fun_#in~N;havoc test_fun_~i~0;test_fun_~pos~0 := 0;test_fun_~neg~0 := 0;test_fun_~i~0 := 0; 621#L517-3 assume !!(test_fun_~i~0 < test_fun_~N); 614#L518-3 call test_fun_#t~mem3 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 616#L518-1 assume !(test_fun_#t~mem3 < 0);havoc test_fun_#t~mem3; 627#L522-2 [2020-11-29 18:27:27,992 INFO L796 eck$LassoCheckResult]: Loop: 627#L522-2 call test_fun_#t~mem7 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 626#L522 assume !!(test_fun_#t~mem7 > 0);havoc test_fun_#t~mem7;call test_fun_#t~mem8 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);test_fun_#t~post9 := test_fun_#t~mem8;call write~int(test_fun_#t~post9 - 1, test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);havoc test_fun_#t~mem8;havoc test_fun_#t~post9;test_fun_#t~post10 := test_fun_~pos~0;test_fun_~pos~0 := 1 + test_fun_#t~post10;havoc test_fun_#t~post10; 627#L522-2 [2020-11-29 18:27:27,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:27,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1235383699, now seen corresponding path program 1 times [2020-11-29 18:27:27,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:27:27,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100605946] [2020-11-29 18:27:27,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:27:28,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:28,003 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:28,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:28,013 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:28,017 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:27:28,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:28,018 INFO L82 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 1 times [2020-11-29 18:27:28,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:27:28,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821712417] [2020-11-29 18:27:28,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:27:28,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:28,023 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:28,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:28,026 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:28,028 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:27:28,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:28,029 INFO L82 PathProgramCache]: Analyzing trace with hash 1792762584, now seen corresponding path program 1 times [2020-11-29 18:27:28,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:27:28,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120126445] [2020-11-29 18:27:28,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:27:28,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:28,043 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:28,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:28,072 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:28,088 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:27:28,377 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 82 [2020-11-29 18:27:28,448 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:27:28,448 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:27:28,448 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:27:28,448 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:27:28,448 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:27:28,448 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:28,448 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:27:28,448 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:27:28,449 INFO L133 ssoRankerPreferences]: Filename of dumped script: array02-alloca-2.i_Iteration6_Lasso [2020-11-29 18:27:28,449 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:27:28,449 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:27:28,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:28,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:28,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:28,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:28,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:28,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:28,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:28,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:28,613 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2020-11-29 18:27:28,666 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:28,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:28,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:28,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:28,676 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:28,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:28,682 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:28,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:28,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:28,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:28,691 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:28,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:28,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:28,900 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2020-11-29 18:27:29,135 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:27:29,135 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 49 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 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:29,141 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 [2020-11-29 18:27:29,142 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:29,142 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:27:29,142 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:29,142 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:29,142 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:29,143 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:27:29,143 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:27:29,144 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 50 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 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:29,169 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 [2020-11-29 18:27:29,171 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:29,171 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:27:29,171 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:29,171 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:29,171 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:29,172 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:27:29,172 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:27:29,173 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 51 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 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:29,199 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 [2020-11-29 18:27:29,200 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:29,200 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:29,200 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:29,200 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:29,202 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:27:29,202 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:27:29,204 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 52 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 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:29,230 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 [2020-11-29 18:27:29,231 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:29,231 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:29,231 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:29,231 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:29,239 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:27:29,240 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:27:29,244 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 53 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 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:29,268 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 [2020-11-29 18:27:29,270 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:29,270 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:27:29,270 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:29,270 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:29,270 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:29,271 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:27:29,271 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:27:29,278 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:27:29,303 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 [2020-11-29 18:27:29,306 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:29,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:29,306 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:29,306 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:29,314 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:27:29,314 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:27:29,327 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:27:29,357 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 [2020-11-29 18:27:29,359 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:29,359 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:27:29,360 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:29,360 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:29,360 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:29,360 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:27:29,360 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:29,362 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 56 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 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:29,390 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 [2020-11-29 18:27:29,392 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:29,392 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:29,392 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:29,392 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:29,396 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:27:29,396 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:27:29,421 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:27:29,445 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2020-11-29 18:27:29,446 INFO L444 ModelExtractionUtils]: 3 out of 10 variables were initially zero. Simplification set additionally 5 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:27:29,450 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:29,453 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 18:27:29,453 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:27:29,453 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~numbers~0.base) (+ (* ULTIMATE.start_main_~k~0 4) ULTIMATE.start_main_~numbers~0.offset (- 4)))_2) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~numbers~0.base) (+ (* ULTIMATE.start_main_~k~0 4) ULTIMATE.start_main_~numbers~0.offset (- 4)))_2 Supporting invariants [] [2020-11-29 18:27:29,512 INFO L297 tatePredicateManager]: 3 out of 5 supporting invariants were superfluous and have been removed [2020-11-29 18:27:29,519 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-29 18:27:29,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:29,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:27:29,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 18 conjunts are in the unsatisfiable core [2020-11-29 18:27:29,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:27:29,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:27:29,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-29 18:27:29,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:27:29,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:27:29,752 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2020-11-29 18:27:29,752 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 36 transitions. cyclomatic complexity: 16 Second operand 6 states. [2020-11-29 18:27:29,869 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 36 transitions. cyclomatic complexity: 16. Second operand 6 states. Result 50 states and 67 transitions. Complement of second has 11 states. [2020-11-29 18:27:29,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 4 stem states 2 non-accepting loop states 2 accepting loop states [2020-11-29 18:27:29,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-11-29 18:27:29,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 26 transitions. [2020-11-29 18:27:29,871 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 26 transitions. Stem has 11 letters. Loop has 2 letters. [2020-11-29 18:27:29,871 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:27:29,871 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 26 transitions. Stem has 13 letters. Loop has 2 letters. [2020-11-29 18:27:29,872 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:27:29,872 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 26 transitions. Stem has 11 letters. Loop has 4 letters. [2020-11-29 18:27:29,872 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:27:29,872 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 67 transitions. [2020-11-29 18:27:29,874 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-29 18:27:29,874 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 41 states and 54 transitions. [2020-11-29 18:27:29,875 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2020-11-29 18:27:29,875 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2020-11-29 18:27:29,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 54 transitions. [2020-11-29 18:27:29,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:27:29,875 INFO L691 BuchiCegarLoop]: Abstraction has 41 states and 54 transitions. [2020-11-29 18:27:29,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 54 transitions. [2020-11-29 18:27:29,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 36. [2020-11-29 18:27:29,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-29 18:27:29,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 49 transitions. [2020-11-29 18:27:29,879 INFO L714 BuchiCegarLoop]: Abstraction has 36 states and 49 transitions. [2020-11-29 18:27:29,879 INFO L594 BuchiCegarLoop]: Abstraction has 36 states and 49 transitions. [2020-11-29 18:27:29,880 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-11-29 18:27:29,880 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 49 transitions. [2020-11-29 18:27:29,881 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-29 18:27:29,881 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:27:29,881 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:27:29,881 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:27:29,882 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:27:29,882 INFO L794 eck$LassoCheckResult]: Stem: 811#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 806#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet14, main_#t~post13, main_~k~0, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet11;havoc main_#t~nondet11; 807#L530 assume !(main_~array_size~0 < 1 || main_~array_size~0 >= 536870911); 815#L530-2 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;main_~k~0 := 0; 808#L535-3 assume !!(main_~k~0 < main_~array_size~0);call write~int(main_#t~nondet14, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~k~0, 4);havoc main_#t~nondet14; 809#L535-2 main_#t~post13 := main_~k~0;main_~k~0 := 1 + main_#t~post13;havoc main_#t~post13; 823#L535-3 assume !!(main_~k~0 < main_~array_size~0);call write~int(main_#t~nondet14, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~k~0, 4);havoc main_#t~nondet14; 800#L535-2 main_#t~post13 := main_~k~0;main_~k~0 := 1 + main_#t~post13;havoc main_#t~post13; 801#L535-3 assume !(main_~k~0 < main_~array_size~0); 810#L535-4 test_fun_#in~a.base, test_fun_#in~a.offset, test_fun_#in~N := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc test_fun_#t~mem4, test_fun_#t~post5, test_fun_#t~post6, test_fun_#t~mem3, test_fun_#t~mem8, test_fun_#t~post9, test_fun_#t~post10, test_fun_#t~mem7, test_fun_#t~post2, test_fun_~a.base, test_fun_~a.offset, test_fun_~N, test_fun_~i~0, test_fun_~pos~0, test_fun_~neg~0;test_fun_~a.base, test_fun_~a.offset := test_fun_#in~a.base, test_fun_#in~a.offset;test_fun_~N := test_fun_#in~N;havoc test_fun_~i~0;test_fun_~pos~0 := 0;test_fun_~neg~0 := 0;test_fun_~i~0 := 0; 822#L517-3 assume !!(test_fun_~i~0 < test_fun_~N); 821#L518-3 call test_fun_#t~mem3 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 816#L518-1 assume !(test_fun_#t~mem3 < 0);havoc test_fun_#t~mem3; 803#L522-2 [2020-11-29 18:27:29,882 INFO L796 eck$LassoCheckResult]: Loop: 803#L522-2 call test_fun_#t~mem7 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 802#L522 assume !!(test_fun_#t~mem7 > 0);havoc test_fun_#t~mem7;call test_fun_#t~mem8 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);test_fun_#t~post9 := test_fun_#t~mem8;call write~int(test_fun_#t~post9 - 1, test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);havoc test_fun_#t~mem8;havoc test_fun_#t~post9;test_fun_#t~post10 := test_fun_~pos~0;test_fun_~pos~0 := 1 + test_fun_#t~post10;havoc test_fun_#t~post10; 803#L522-2 [2020-11-29 18:27:29,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:29,882 INFO L82 PathProgramCache]: Analyzing trace with hash -856885647, now seen corresponding path program 2 times [2020-11-29 18:27:29,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:27:29,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611336058] [2020-11-29 18:27:29,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:27:29,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:29,908 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:29,926 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:29,930 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:27:29,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:29,931 INFO L82 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 2 times [2020-11-29 18:27:29,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:27:29,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055662518] [2020-11-29 18:27:29,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:27:29,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:29,936 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:29,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:29,940 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:29,941 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:27:29,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:29,942 INFO L82 PathProgramCache]: Analyzing trace with hash 1166615606, now seen corresponding path program 2 times [2020-11-29 18:27:29,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:27:29,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609144949] [2020-11-29 18:27:29,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:27:29,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:29,958 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:29,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:29,972 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:29,976 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:27:30,269 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 92 [2020-11-29 18:27:30,357 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:27:30,357 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:27:30,357 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:27:30,357 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:27:30,357 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:27:30,357 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:30,357 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:27:30,357 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:27:30,357 INFO L133 ssoRankerPreferences]: Filename of dumped script: array02-alloca-2.i_Iteration7_Lasso [2020-11-29 18:27:30,357 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:27:30,357 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:27:30,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:30,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:30,566 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 51 [2020-11-29 18:27:30,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:30,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:30,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:30,615 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:30,617 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:30,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:30,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:30,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:30,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:30,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:30,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:30,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:30,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:30,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:30,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:30,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:30,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:30,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:30,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:31,061 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:27:31,062 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:27:31,074 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 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:31,076 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:31,076 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:31,076 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:31,076 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:31,078 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:27:31,078 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:27:31,081 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 59 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 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:31,108 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 [2020-11-29 18:27:31,109 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:31,109 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:31,109 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:31,109 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:31,111 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:27:31,111 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:27:31,116 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:27:31,123 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-11-29 18:27:31,123 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 60 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 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:31,125 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 18:27:31,127 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 18:27:31,127 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:27:31,127 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~a.base) (+ (* ULTIMATE.start_test_fun_~i~0 4) ULTIMATE.start_test_fun_~a.offset))_5) = 1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~a.base) (+ (* ULTIMATE.start_test_fun_~i~0 4) ULTIMATE.start_test_fun_~a.offset))_5 Supporting invariants [] [2020-11-29 18:27:31,165 INFO L297 tatePredicateManager]: 5 out of 5 supporting invariants were superfluous and have been removed [2020-11-29 18:27:31,167 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-29 18:27:31,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:31,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:27:31,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 18:27:31,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:27:31,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:27:31,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 18:27:31,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:27:31,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:27:31,256 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 [2020-11-29 18:27:31,257 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 49 transitions. cyclomatic complexity: 21 Second operand 3 states. [2020-11-29 18:27:31,286 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 49 transitions. cyclomatic complexity: 21. Second operand 3 states. Result 47 states and 63 transitions. Complement of second has 7 states. [2020-11-29 18:27:31,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-29 18:27:31,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 18:27:31,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2020-11-29 18:27:31,288 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 13 letters. Loop has 2 letters. [2020-11-29 18:27:31,288 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:27:31,288 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 15 letters. Loop has 2 letters. [2020-11-29 18:27:31,289 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:27:31,289 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 13 letters. Loop has 4 letters. [2020-11-29 18:27:31,289 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:27:31,289 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 63 transitions. [2020-11-29 18:27:31,290 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-29 18:27:31,290 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 36 states and 47 transitions. [2020-11-29 18:27:31,291 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-11-29 18:27:31,291 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2020-11-29 18:27:31,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 47 transitions. [2020-11-29 18:27:31,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:27:31,291 INFO L691 BuchiCegarLoop]: Abstraction has 36 states and 47 transitions. [2020-11-29 18:27:31,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 47 transitions. [2020-11-29 18:27:31,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 25. [2020-11-29 18:27:31,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-29 18:27:31,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 33 transitions. [2020-11-29 18:27:31,293 INFO L714 BuchiCegarLoop]: Abstraction has 25 states and 33 transitions. [2020-11-29 18:27:31,293 INFO L594 BuchiCegarLoop]: Abstraction has 25 states and 33 transitions. [2020-11-29 18:27:31,293 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-11-29 18:27:31,293 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 33 transitions. [2020-11-29 18:27:31,294 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-29 18:27:31,294 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:27:31,294 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:27:31,294 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:27:31,294 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:27:31,295 INFO L794 eck$LassoCheckResult]: Stem: 983#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 979#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet14, main_#t~post13, main_~k~0, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet11;havoc main_#t~nondet11; 980#L530 assume !(main_~array_size~0 < 1 || main_~array_size~0 >= 536870911); 985#L530-2 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;main_~k~0 := 0; 981#L535-3 assume !!(main_~k~0 < main_~array_size~0);call write~int(main_#t~nondet14, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~k~0, 4);havoc main_#t~nondet14; 973#L535-2 main_#t~post13 := main_~k~0;main_~k~0 := 1 + main_#t~post13;havoc main_#t~post13; 974#L535-3 assume !(main_~k~0 < main_~array_size~0); 982#L535-4 test_fun_#in~a.base, test_fun_#in~a.offset, test_fun_#in~N := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc test_fun_#t~mem4, test_fun_#t~post5, test_fun_#t~post6, test_fun_#t~mem3, test_fun_#t~mem8, test_fun_#t~post9, test_fun_#t~post10, test_fun_#t~mem7, test_fun_#t~post2, test_fun_~a.base, test_fun_~a.offset, test_fun_~N, test_fun_~i~0, test_fun_~pos~0, test_fun_~neg~0;test_fun_~a.base, test_fun_~a.offset := test_fun_#in~a.base, test_fun_#in~a.offset;test_fun_~N := test_fun_#in~N;havoc test_fun_~i~0;test_fun_~pos~0 := 0;test_fun_~neg~0 := 0;test_fun_~i~0 := 0; 971#L517-3 assume !!(test_fun_~i~0 < test_fun_~N); 968#L518-3 call test_fun_#t~mem3 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 969#L518-1 assume !(test_fun_#t~mem3 < 0);havoc test_fun_#t~mem3; 978#L522-2 call test_fun_#t~mem7 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 984#L522 assume !(test_fun_#t~mem7 > 0);havoc test_fun_#t~mem7; 964#L517-2 test_fun_#t~post2 := test_fun_~i~0;test_fun_~i~0 := 1 + test_fun_#t~post2;havoc test_fun_#t~post2; 965#L517-3 assume !!(test_fun_~i~0 < test_fun_~N); 966#L518-3 [2020-11-29 18:27:31,295 INFO L796 eck$LassoCheckResult]: Loop: 966#L518-3 call test_fun_#t~mem3 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 967#L518-1 assume !!(test_fun_#t~mem3 < 0);havoc test_fun_#t~mem3;call test_fun_#t~mem4 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);test_fun_#t~post5 := test_fun_#t~mem4;call write~int(1 + test_fun_#t~post5, test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);havoc test_fun_#t~post5;havoc test_fun_#t~mem4;test_fun_#t~post6 := test_fun_~neg~0;test_fun_~neg~0 := 1 + test_fun_#t~post6;havoc test_fun_#t~post6; 966#L518-3 [2020-11-29 18:27:31,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:31,295 INFO L82 PathProgramCache]: Analyzing trace with hash 562957404, now seen corresponding path program 2 times [2020-11-29 18:27:31,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:27:31,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149417448] [2020-11-29 18:27:31,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:27:31,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:27:31,420 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:27:31,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149417448] [2020-11-29 18:27:31,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823075813] [2020-11-29 18:27:31,420 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:27:31,476 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-29 18:27:31,476 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 18:27:31,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 18:27:31,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:27:31,533 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:27:31,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 18:27:31,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2020-11-29 18:27:31,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518652709] [2020-11-29 18:27:31,534 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 18:27:31,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:31,535 INFO L82 PathProgramCache]: Analyzing trace with hash 2118, now seen corresponding path program 3 times [2020-11-29 18:27:31,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:27:31,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478859717] [2020-11-29 18:27:31,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:27:31,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:31,540 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:31,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:31,544 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:31,545 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:27:31,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:27:31,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 18:27:31,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-11-29 18:27:31,603 INFO L87 Difference]: Start difference. First operand 25 states and 33 transitions. cyclomatic complexity: 14 Second operand 10 states. [2020-11-29 18:27:31,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:27:31,800 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2020-11-29 18:27:31,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-29 18:27:31,801 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 54 transitions. [2020-11-29 18:27:31,802 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-29 18:27:31,802 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 28 states and 35 transitions. [2020-11-29 18:27:31,803 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-11-29 18:27:31,803 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-11-29 18:27:31,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 35 transitions. [2020-11-29 18:27:31,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:27:31,803 INFO L691 BuchiCegarLoop]: Abstraction has 28 states and 35 transitions. [2020-11-29 18:27:31,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 35 transitions. [2020-11-29 18:27:31,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2020-11-29 18:27:31,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-29 18:27:31,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2020-11-29 18:27:31,805 INFO L714 BuchiCegarLoop]: Abstraction has 27 states and 34 transitions. [2020-11-29 18:27:31,806 INFO L594 BuchiCegarLoop]: Abstraction has 27 states and 34 transitions. [2020-11-29 18:27:31,806 INFO L427 BuchiCegarLoop]: ======== Iteration 9============ [2020-11-29 18:27:31,806 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 34 transitions. [2020-11-29 18:27:31,806 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-29 18:27:31,806 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:27:31,806 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:27:31,807 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:27:31,807 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:27:31,807 INFO L794 eck$LassoCheckResult]: Stem: 1115#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1111#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet14, main_#t~post13, main_~k~0, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet11;havoc main_#t~nondet11; 1112#L530 assume !(main_~array_size~0 < 1 || main_~array_size~0 >= 536870911); 1119#L530-2 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;main_~k~0 := 0; 1113#L535-3 assume !!(main_~k~0 < main_~array_size~0);call write~int(main_#t~nondet14, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~k~0, 4);havoc main_#t~nondet14; 1105#L535-2 main_#t~post13 := main_~k~0;main_~k~0 := 1 + main_#t~post13;havoc main_#t~post13; 1106#L535-3 assume !!(main_~k~0 < main_~array_size~0);call write~int(main_#t~nondet14, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~k~0, 4);havoc main_#t~nondet14; 1114#L535-2 main_#t~post13 := main_~k~0;main_~k~0 := 1 + main_#t~post13;havoc main_#t~post13; 1120#L535-3 assume !(main_~k~0 < main_~array_size~0); 1116#L535-4 test_fun_#in~a.base, test_fun_#in~a.offset, test_fun_#in~N := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc test_fun_#t~mem4, test_fun_#t~post5, test_fun_#t~post6, test_fun_#t~mem3, test_fun_#t~mem8, test_fun_#t~post9, test_fun_#t~post10, test_fun_#t~mem7, test_fun_#t~post2, test_fun_~a.base, test_fun_~a.offset, test_fun_~N, test_fun_~i~0, test_fun_~pos~0, test_fun_~neg~0;test_fun_~a.base, test_fun_~a.offset := test_fun_#in~a.base, test_fun_#in~a.offset;test_fun_~N := test_fun_#in~N;havoc test_fun_~i~0;test_fun_~pos~0 := 0;test_fun_~neg~0 := 0;test_fun_~i~0 := 0; 1103#L517-3 assume !!(test_fun_~i~0 < test_fun_~N); 1104#L518-3 call test_fun_#t~mem3 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 1122#L518-1 assume !(test_fun_#t~mem3 < 0);havoc test_fun_#t~mem3; 1110#L522-2 call test_fun_#t~mem7 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 1121#L522 assume !(test_fun_#t~mem7 > 0);havoc test_fun_#t~mem7; 1101#L517-2 test_fun_#t~post2 := test_fun_~i~0;test_fun_~i~0 := 1 + test_fun_#t~post2;havoc test_fun_#t~post2; 1102#L517-3 assume !!(test_fun_~i~0 < test_fun_~N); 1097#L518-3 [2020-11-29 18:27:31,807 INFO L796 eck$LassoCheckResult]: Loop: 1097#L518-3 call test_fun_#t~mem3 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 1098#L518-1 assume !!(test_fun_#t~mem3 < 0);havoc test_fun_#t~mem3;call test_fun_#t~mem4 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);test_fun_#t~post5 := test_fun_#t~mem4;call write~int(1 + test_fun_#t~post5, test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);havoc test_fun_#t~post5;havoc test_fun_#t~mem4;test_fun_#t~post6 := test_fun_~neg~0;test_fun_~neg~0 := 1 + test_fun_#t~post6;havoc test_fun_#t~post6; 1097#L518-3 [2020-11-29 18:27:31,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:31,808 INFO L82 PathProgramCache]: Analyzing trace with hash 131132986, now seen corresponding path program 3 times [2020-11-29 18:27:31,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:27:31,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688141915] [2020-11-29 18:27:31,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:27:31,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:31,822 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:31,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:31,834 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:31,838 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:27:31,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:31,839 INFO L82 PathProgramCache]: Analyzing trace with hash 2118, now seen corresponding path program 4 times [2020-11-29 18:27:31,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:27:31,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467974598] [2020-11-29 18:27:31,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:27:31,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:31,844 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:31,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:31,847 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:31,849 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:27:31,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:31,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1464749119, now seen corresponding path program 1 times [2020-11-29 18:27:31,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:27:31,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572087473] [2020-11-29 18:27:31,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:27:31,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:31,865 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:31,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:31,879 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:31,883 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:27:32,251 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 101 [2020-11-29 18:27:32,360 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-11-29 18:27:32,363 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:27:32,363 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:27:32,363 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:27:32,363 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:27:32,363 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:27:32,363 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:32,363 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:27:32,363 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:27:32,363 INFO L133 ssoRankerPreferences]: Filename of dumped script: array02-alloca-2.i_Iteration9_Lasso [2020-11-29 18:27:32,364 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:27:32,364 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:27:32,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:32,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:32,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:32,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:32,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:32,588 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2020-11-29 18:27:32,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:32,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:32,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:32,642 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:32,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:32,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:32,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:32,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:32,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:32,667 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:32,676 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:32,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:32,682 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:32,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:32,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:32,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:33,050 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:27:33,050 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 62 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 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:33,055 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 [2020-11-29 18:27:33,056 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:33,057 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:33,057 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:33,057 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:33,058 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:27:33,058 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:27:33,061 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 63 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 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:33,088 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 [2020-11-29 18:27:33,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:33,090 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:27:33,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:33,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:33,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:33,090 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:27:33,090 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:27:33,091 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 64 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 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:33,116 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 [2020-11-29 18:27:33,117 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:33,117 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:27:33,117 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:33,118 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:33,118 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:33,118 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:27:33,118 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:27:33,119 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 65 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 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:33,143 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 [2020-11-29 18:27:33,145 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:33,145 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:27:33,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:33,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:33,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:33,146 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:27:33,146 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:27:33,147 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 66 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 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:33,178 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 [2020-11-29 18:27:33,180 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:33,180 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:27:33,180 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:33,180 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:33,180 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:33,181 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:27:33,181 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:27:33,182 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:27:33,184 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-11-29 18:27:33,184 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:27:33,186 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 18:27:33,187 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 18:27:33,187 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:27:33,187 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~a.base) (+ (* ULTIMATE.start_test_fun_~i~0 4) ULTIMATE.start_test_fun_~a.offset))_6) = -1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~a.base) (+ (* ULTIMATE.start_test_fun_~i~0 4) ULTIMATE.start_test_fun_~a.offset))_6 Supporting invariants [] Waiting until toolchain timeout for monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:33,226 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2020-11-29 18:27:33,242 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-29 18:27:33,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:33,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:27:33,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 18:27:33,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:27:33,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:27:33,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 18:27:33,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:27:33,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:27:33,309 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 [2020-11-29 18:27:33,309 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 34 transitions. cyclomatic complexity: 13 Second operand 3 states. [2020-11-29 18:27:33,332 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 34 transitions. cyclomatic complexity: 13. Second operand 3 states. Result 37 states and 45 transitions. Complement of second has 7 states. [2020-11-29 18:27:33,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-29 18:27:33,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 18:27:33,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2020-11-29 18:27:33,337 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 17 letters. Loop has 2 letters. [2020-11-29 18:27:33,338 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:27:33,338 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 18:27:33,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:33,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:27:33,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 18:27:33,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:27:33,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:27:33,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 18:27:33,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:27:33,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:27:33,413 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 18:27:33,413 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 34 transitions. cyclomatic complexity: 13 Second operand 3 states. [2020-11-29 18:27:33,445 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 34 transitions. cyclomatic complexity: 13. Second operand 3 states. Result 37 states and 45 transitions. Complement of second has 7 states. [2020-11-29 18:27:33,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-29 18:27:33,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 18:27:33,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2020-11-29 18:27:33,451 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 17 letters. Loop has 2 letters. [2020-11-29 18:27:33,451 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:27:33,451 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 18:27:33,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:33,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:27:33,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 18:27:33,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:27:33,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:27:33,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 18:27:33,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:27:33,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:27:33,504 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 18:27:33,504 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 34 transitions. cyclomatic complexity: 13 Second operand 3 states. [2020-11-29 18:27:33,555 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 34 transitions. cyclomatic complexity: 13. Second operand 3 states. Result 48 states and 59 transitions. Complement of second has 6 states. [2020-11-29 18:27:33,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-29 18:27:33,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 18:27:33,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2020-11-29 18:27:33,558 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 17 letters. Loop has 2 letters. [2020-11-29 18:27:33,558 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:27:33,558 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 19 letters. Loop has 2 letters. [2020-11-29 18:27:33,558 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:27:33,558 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 17 letters. Loop has 4 letters. [2020-11-29 18:27:33,559 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:27:33,559 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 59 transitions. [2020-11-29 18:27:33,560 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:27:33,560 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 38 states and 48 transitions. [2020-11-29 18:27:33,560 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2020-11-29 18:27:33,561 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2020-11-29 18:27:33,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 48 transitions. [2020-11-29 18:27:33,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:27:33,561 INFO L691 BuchiCegarLoop]: Abstraction has 38 states and 48 transitions. [2020-11-29 18:27:33,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 48 transitions. [2020-11-29 18:27:33,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 30. [2020-11-29 18:27:33,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-29 18:27:33,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2020-11-29 18:27:33,564 INFO L714 BuchiCegarLoop]: Abstraction has 30 states and 38 transitions. [2020-11-29 18:27:33,564 INFO L594 BuchiCegarLoop]: Abstraction has 30 states and 38 transitions. [2020-11-29 18:27:33,564 INFO L427 BuchiCegarLoop]: ======== Iteration 10============ [2020-11-29 18:27:33,564 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 38 transitions. [2020-11-29 18:27:33,565 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:27:33,565 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:27:33,565 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:27:33,566 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:27:33,566 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:27:33,566 INFO L794 eck$LassoCheckResult]: Stem: 1502#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1498#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet14, main_#t~post13, main_~k~0, main_~array_size~0, main_~numbers~0.base, main_~numbers~0.offset;main_~array_size~0 := main_#t~nondet11;havoc main_#t~nondet11; 1499#L530 assume !(main_~array_size~0 < 1 || main_~array_size~0 >= 536870911); 1506#L530-2 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(4 * main_~array_size~0);main_~numbers~0.base, main_~numbers~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;main_~k~0 := 0; 1500#L535-3 assume !!(main_~k~0 < main_~array_size~0);call write~int(main_#t~nondet14, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~k~0, 4);havoc main_#t~nondet14; 1492#L535-2 main_#t~post13 := main_~k~0;main_~k~0 := 1 + main_#t~post13;havoc main_#t~post13; 1493#L535-3 assume !!(main_~k~0 < main_~array_size~0);call write~int(main_#t~nondet14, main_~numbers~0.base, main_~numbers~0.offset + 4 * main_~k~0, 4);havoc main_#t~nondet14; 1501#L535-2 main_#t~post13 := main_~k~0;main_~k~0 := 1 + main_#t~post13;havoc main_#t~post13; 1509#L535-3 assume !(main_~k~0 < main_~array_size~0); 1503#L535-4 test_fun_#in~a.base, test_fun_#in~a.offset, test_fun_#in~N := main_~numbers~0.base, main_~numbers~0.offset, main_~array_size~0;havoc test_fun_#t~mem4, test_fun_#t~post5, test_fun_#t~post6, test_fun_#t~mem3, test_fun_#t~mem8, test_fun_#t~post9, test_fun_#t~post10, test_fun_#t~mem7, test_fun_#t~post2, test_fun_~a.base, test_fun_~a.offset, test_fun_~N, test_fun_~i~0, test_fun_~pos~0, test_fun_~neg~0;test_fun_~a.base, test_fun_~a.offset := test_fun_#in~a.base, test_fun_#in~a.offset;test_fun_~N := test_fun_#in~N;havoc test_fun_~i~0;test_fun_~pos~0 := 0;test_fun_~neg~0 := 0;test_fun_~i~0 := 0; 1490#L517-3 assume !!(test_fun_~i~0 < test_fun_~N); 1485#L518-3 call test_fun_#t~mem3 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 1486#L518-1 assume !(test_fun_#t~mem3 < 0);havoc test_fun_#t~mem3; 1497#L522-2 call test_fun_#t~mem7 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 1510#L522 assume !(test_fun_#t~mem7 > 0);havoc test_fun_#t~mem7; 1488#L517-2 test_fun_#t~post2 := test_fun_~i~0;test_fun_~i~0 := 1 + test_fun_#t~post2;havoc test_fun_#t~post2; 1489#L517-3 assume !!(test_fun_~i~0 < test_fun_~N); 1482#L518-3 call test_fun_#t~mem3 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 1484#L518-1 assume !(test_fun_#t~mem3 < 0);havoc test_fun_#t~mem3; 1495#L522-2 [2020-11-29 18:27:33,566 INFO L796 eck$LassoCheckResult]: Loop: 1495#L522-2 call test_fun_#t~mem7 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4); 1494#L522 assume !!(test_fun_#t~mem7 > 0);havoc test_fun_#t~mem7;call test_fun_#t~mem8 := read~int(test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);test_fun_#t~post9 := test_fun_#t~mem8;call write~int(test_fun_#t~post9 - 1, test_fun_~a.base, test_fun_~a.offset + 4 * test_fun_~i~0, 4);havoc test_fun_#t~mem8;havoc test_fun_#t~post9;test_fun_#t~post10 := test_fun_~pos~0;test_fun_~pos~0 := 1 + test_fun_#t~post10;havoc test_fun_#t~post10; 1495#L522-2 [2020-11-29 18:27:33,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:33,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1464749117, now seen corresponding path program 4 times [2020-11-29 18:27:33,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:27:33,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004840847] [2020-11-29 18:27:33,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:27:33,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:33,582 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:33,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:33,594 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:33,598 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:27:33,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:33,599 INFO L82 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 3 times [2020-11-29 18:27:33,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:27:33,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080806063] [2020-11-29 18:27:33,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:27:33,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:33,614 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:33,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:33,619 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:33,620 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:27:33,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:33,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1125370110, now seen corresponding path program 1 times [2020-11-29 18:27:33,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:27:33,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817526916] [2020-11-29 18:27:33,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:27:33,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:33,654 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:33,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:27:33,675 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:27:33,688 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:27:34,146 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 108 [2020-11-29 18:27:34,235 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:27:34,235 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:27:34,235 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:27:34,235 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:27:34,235 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:27:34,235 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:34,235 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:27:34,235 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:27:34,235 INFO L133 ssoRankerPreferences]: Filename of dumped script: array02-alloca-2.i_Iteration10_Lasso [2020-11-29 18:27:34,235 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:27:34,235 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:27:34,238 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:34,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:34,423 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2020-11-29 18:27:34,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:34,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:34,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:34,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:34,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:34,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:34,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:34,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:34,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:34,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:34,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:34,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:34,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:34,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:34,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:34,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:34,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:34,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:34,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:27:34,797 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:27:34,797 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 68 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 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:34,809 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 [2020-11-29 18:27:34,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:34,810 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:27:34,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:34,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:34,810 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:34,811 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:27:34,811 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:27:34,821 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 69 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 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:34,856 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 [2020-11-29 18:27:34,857 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:34,857 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:34,857 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:34,857 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:34,860 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:27:34,860 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:27:34,864 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 70 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 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:34,889 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 [2020-11-29 18:27:34,890 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:34,890 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:34,890 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:34,890 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:34,891 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:27:34,892 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:27:34,894 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 71 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 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:34,918 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 [2020-11-29 18:27:34,920 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:34,920 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:34,920 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:34,921 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:34,926 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:27:34,926 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:27:34,937 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 72 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 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:34,963 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 [2020-11-29 18:27:34,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:34,964 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:34,964 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:34,965 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:34,966 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:27:34,966 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:27:34,970 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 73 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 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:35,010 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 [2020-11-29 18:27:35,011 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:27:35,012 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:27:35,012 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:27:35,012 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:27:35,014 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:27:35,014 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:27:35,018 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:27:35,025 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-11-29 18:27:35,025 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_897a04ef-a267-409f-88fa-21df43fd8122/bin/uautomizer/z3 Starting monitored process 74 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 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:27:35,027 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 18:27:35,029 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 18:27:35,030 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:27:35,030 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_test_fun_~a.base) (+ (* ULTIMATE.start_test_fun_~i~0 4) ULTIMATE.start_test_fun_~a.offset))_7) = 1*v_rep(select (select #memory_int ULTIMATE.start_test_fun_~a.base) (+ (* ULTIMATE.start_test_fun_~i~0 4) ULTIMATE.start_test_fun_~a.offset))_7 Supporting invariants [] [2020-11-29 18:27:35,062 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2020-11-29 18:27:35,063 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-29 18:27:35,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:35,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:27:35,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 18:27:35,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:27:35,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:27:35,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 18:27:35,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:27:35,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:27:35,118 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 [2020-11-29 18:27:35,118 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 38 transitions. cyclomatic complexity: 14 Second operand 3 states. [2020-11-29 18:27:35,141 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 38 transitions. cyclomatic complexity: 14. Second operand 3 states. Result 34 states and 42 transitions. Complement of second has 7 states. [2020-11-29 18:27:35,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-29 18:27:35,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 18:27:35,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2020-11-29 18:27:35,142 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 19 letters. Loop has 2 letters. [2020-11-29 18:27:35,142 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:27:35,142 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 18:27:35,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:27:35,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 18:27:35,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:27:35,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:27:35,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 18:27:35,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:27:35,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:27:35,190 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 18:27:35,190 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 38 transitions. cyclomatic complexity: 14 Second operand 3 states. [2020-11-29 18:27:35,209 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 38 transitions. cyclomatic complexity: 14. Second operand 3 states. Result 34 states and 42 transitions. Complement of second has 7 states. [2020-11-29 18:27:35,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-29 18:27:35,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 18:27:35,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2020-11-29 18:27:35,210 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 19 letters. Loop has 2 letters. [2020-11-29 18:27:35,210 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:27:35,210 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 18:27:35,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:27:35,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:27:35,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 18:27:35,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:27:35,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:27:35,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 18:27:35,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:27:35,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:27:35,281 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 18:27:35,281 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 38 transitions. cyclomatic complexity: 14 Second operand 3 states. [2020-11-29 18:27:35,300 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 38 transitions. cyclomatic complexity: 14. Second operand 3 states. Result 36 states and 46 transitions. Complement of second has 6 states. [2020-11-29 18:27:35,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-29 18:27:35,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 18:27:35,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2020-11-29 18:27:35,301 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 19 letters. Loop has 2 letters. [2020-11-29 18:27:35,301 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:27:35,301 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 21 letters. Loop has 2 letters. [2020-11-29 18:27:35,301 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:27:35,302 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 19 letters. Loop has 4 letters. [2020-11-29 18:27:35,302 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:27:35,302 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 46 transitions. [2020-11-29 18:27:35,303 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 18:27:35,303 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 0 states and 0 transitions. [2020-11-29 18:27:35,303 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 18:27:35,303 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 18:27:35,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 18:27:35,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:27:35,303 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:27:35,303 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:27:35,303 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:27:35,303 INFO L427 BuchiCegarLoop]: ======== Iteration 11============ [2020-11-29 18:27:35,303 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 18:27:35,303 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 18:27:35,304 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 18:27:35,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 06:27:35 BoogieIcfgContainer [2020-11-29 18:27:35,311 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 18:27:35,311 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:27:35,311 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:27:35,312 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:27:35,316 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:27:18" (3/4) ... [2020-11-29 18:27:35,321 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 18:27:35,321 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:27:35,322 INFO L168 Benchmark]: Toolchain (without parser) took 18031.31 ms. Allocated memory was 92.3 MB in the beginning and 234.9 MB in the end (delta: 142.6 MB). Free memory was 58.7 MB in the beginning and 161.7 MB in the end (delta: -103.0 MB). Peak memory consumption was 40.2 MB. Max. memory is 16.1 GB. [2020-11-29 18:27:35,326 INFO L168 Benchmark]: CDTParser took 0.99 ms. Allocated memory is still 92.3 MB. Free memory was 50.3 MB in the beginning and 50.3 MB in the end (delta: 75.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:27:35,327 INFO L168 Benchmark]: CACSL2BoogieTranslator took 534.00 ms. Allocated memory is still 92.3 MB. Free memory was 58.5 MB in the beginning and 57.7 MB in the end (delta: 792.1 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 18:27:35,327 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.36 ms. Allocated memory is still 92.3 MB. Free memory was 57.7 MB in the beginning and 56.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:27:35,327 INFO L168 Benchmark]: Boogie Preprocessor took 63.29 ms. Allocated memory is still 92.3 MB. Free memory was 56.0 MB in the beginning and 54.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:27:35,331 INFO L168 Benchmark]: RCFGBuilder took 484.24 ms. Allocated memory is still 92.3 MB. Free memory was 54.3 MB in the beginning and 39.3 MB in the end (delta: 15.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 18:27:35,332 INFO L168 Benchmark]: BuchiAutomizer took 16856.11 ms. Allocated memory was 92.3 MB in the beginning and 234.9 MB in the end (delta: 142.6 MB). Free memory was 38.9 MB in the beginning and 161.7 MB in the end (delta: -122.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 16.1 GB. [2020-11-29 18:27:35,332 INFO L168 Benchmark]: Witness Printer took 10.14 ms. Allocated memory is still 234.9 MB. Free memory is still 161.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:27:35,335 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.99 ms. Allocated memory is still 92.3 MB. Free memory was 50.3 MB in the beginning and 50.3 MB in the end (delta: 75.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 534.00 ms. Allocated memory is still 92.3 MB. Free memory was 58.5 MB in the beginning and 57.7 MB in the end (delta: 792.1 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 76.36 ms. Allocated memory is still 92.3 MB. Free memory was 57.7 MB in the beginning and 56.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 63.29 ms. Allocated memory is still 92.3 MB. Free memory was 56.0 MB in the beginning and 54.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 484.24 ms. Allocated memory is still 92.3 MB. Free memory was 54.3 MB in the beginning and 39.3 MB in the end (delta: 15.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 16856.11 ms. Allocated memory was 92.3 MB in the beginning and 234.9 MB in the end (delta: 142.6 MB). Free memory was 38.9 MB in the beginning and 161.7 MB in the end (delta: -122.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 16.1 GB. * Witness Printer took 10.14 ms. Allocated memory is still 234.9 MB. Free memory is still 161.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 10 terminating modules (2 trivial, 6 deterministic, 2 nondeterministic). One deterministic module has affine ranking function -4 * k + unknown-#length-unknown[__builtin_alloca (array_size * sizeof(int))] and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (array_size * sizeof(int))] + -4 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[numbers][k * 4 + numbers + -4] and consists of 8 locations. One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[a][i * 4 + a] and consists of 4 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[numbers][k * 4 + numbers + -4] and consists of 8 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[a][i * 4 + a] and consists of 4 locations. One nondeterministic module has affine ranking function -1 * unknown-#memory_int-unknown[a][i * 4 + a] and consists of 4 locations. One nondeterministic module has affine ranking function unknown-#memory_int-unknown[a][i * 4 + a] and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 16.8s and 11 iterations. TraceHistogramMax:2. Analysis of lassos took 14.2s. Construction of modules took 0.4s. Büchi inclusion checks took 1.8s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 7. Automata minimization 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 53 StatesRemovedByMinimization, 8 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 36 states and ocurred in iteration 6. Nontrivial modules had stage [6, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 151 SDtfs, 213 SDslu, 106 SDs, 0 SdLazy, 316 SolverSat, 61 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU2 SILI0 SILT0 lasso8 LassoPreprocessingBenchmarks: Lassos: inital174 mio100 ax110 hnf98 lsp82 ukn77 mio100 lsp59 div100 bol100 ite100 ukn100 eq171 hnf90 smp91 dnf100 smp100 tf100 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 18ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...