./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/KroeningSharyginaTsitovichWintersteiger-2010CAV-Fig1-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ced00785-8a55-4e83-8734-ab25bf021346/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ced00785-8a55-4e83-8734-ab25bf021346/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ced00785-8a55-4e83-8734-ab25bf021346/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ced00785-8a55-4e83-8734-ab25bf021346/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/KroeningSharyginaTsitovichWintersteiger-2010CAV-Fig1-alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_ced00785-8a55-4e83-8734-ab25bf021346/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ced00785-8a55-4e83-8734-ab25bf021346/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e9d8db831e66fcf4f47c300fcbd3a74f1185238a ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 19:05:53,733 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:05:53,741 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:05:53,795 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:05:53,796 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:05:53,797 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:05:53,799 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:05:53,802 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:05:53,805 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:05:53,806 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:05:53,808 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:05:53,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:05:53,810 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:05:53,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:05:53,813 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:05:53,815 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:05:53,817 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:05:53,818 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:05:53,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:05:53,823 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:05:53,826 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:05:53,828 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:05:53,830 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:05:53,832 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:05:53,837 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:05:53,837 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:05:53,838 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:05:53,840 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:05:53,840 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:05:53,842 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:05:53,843 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:05:53,844 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:05:53,845 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:05:53,846 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:05:53,848 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:05:53,849 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:05:53,850 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:05:53,850 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:05:53,851 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:05:53,852 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:05:53,854 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:05:53,855 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ced00785-8a55-4e83-8734-ab25bf021346/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-29 19:05:53,886 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:05:53,887 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:05:53,888 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:05:53,889 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:05:53,889 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:05:53,890 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 19:05:53,890 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 19:05:53,890 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 19:05:53,890 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 19:05:53,891 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 19:05:53,891 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 19:05:53,891 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:05:53,892 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:05:53,892 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:05:53,892 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:05:53,893 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 19:05:53,893 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 19:05:53,894 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 19:05:53,894 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:05:53,894 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 19:05:53,894 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:05:53,895 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 19:05:53,895 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:05:53,895 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:05:53,896 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 19:05:53,896 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:05:53,896 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:05:53,897 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:05:53,897 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 19:05:53,898 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 19:05:53,899 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_ced00785-8a55-4e83-8734-ab25bf021346/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ced00785-8a55-4e83-8734-ab25bf021346/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9d8db831e66fcf4f47c300fcbd3a74f1185238a [2020-11-29 19:05:54,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:05:54,240 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:05:54,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:05:54,248 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:05:54,249 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:05:54,250 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ced00785-8a55-4e83-8734-ab25bf021346/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/KroeningSharyginaTsitovichWintersteiger-2010CAV-Fig1-alloca.i [2020-11-29 19:05:54,352 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ced00785-8a55-4e83-8734-ab25bf021346/bin/uautomizer/data/171ed32e8/845547883ddd449aaf369126121a50bc/FLAG8ecc8dc4d [2020-11-29 19:05:55,024 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:05:55,025 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ced00785-8a55-4e83-8734-ab25bf021346/sv-benchmarks/c/termination-memory-alloca/KroeningSharyginaTsitovichWintersteiger-2010CAV-Fig1-alloca.i [2020-11-29 19:05:55,054 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ced00785-8a55-4e83-8734-ab25bf021346/bin/uautomizer/data/171ed32e8/845547883ddd449aaf369126121a50bc/FLAG8ecc8dc4d [2020-11-29 19:05:55,267 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ced00785-8a55-4e83-8734-ab25bf021346/bin/uautomizer/data/171ed32e8/845547883ddd449aaf369126121a50bc [2020-11-29 19:05:55,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:05:55,271 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:05:55,273 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:05:55,274 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:05:55,278 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:05:55,279 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:05:55" (1/1) ... [2020-11-29 19:05:55,281 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2282b42b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:55, skipping insertion in model container [2020-11-29 19:05:55,282 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:05:55" (1/1) ... [2020-11-29 19:05:55,291 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:05:55,343 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:05:55,727 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:05:55,737 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:05:55,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:05:55,848 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:05:55,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:55 WrapperNode [2020-11-29 19:05:55,849 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:05:55,851 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:05:55,852 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:05:55,852 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:05:55,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:55" (1/1) ... [2020-11-29 19:05:55,886 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:55" (1/1) ... [2020-11-29 19:05:55,908 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:05:55,909 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:05:55,910 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:05:55,910 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:05:55,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:55" (1/1) ... [2020-11-29 19:05:55,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:55" (1/1) ... [2020-11-29 19:05:55,934 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:55" (1/1) ... [2020-11-29 19:05:55,934 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:55" (1/1) ... [2020-11-29 19:05:55,939 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:55" (1/1) ... [2020-11-29 19:05:55,943 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:55" (1/1) ... [2020-11-29 19:05:55,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:55" (1/1) ... [2020-11-29 19:05:55,947 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:05:55,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:05:55,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:05:55,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:05:55,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ced00785-8a55-4e83-8734-ab25bf021346/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 19:05:56,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 19:05:56,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 19:05:56,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:05:56,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 19:05:56,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:05:56,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:05:56,297 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:05:56,297 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-29 19:05:56,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:05:56 BoogieIcfgContainer [2020-11-29 19:05:56,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:05:56,300 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 19:05:56,301 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 19:05:56,304 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 19:05:56,305 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:05:56,306 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 07:05:55" (1/3) ... [2020-11-29 19:05:56,307 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@580e2d18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:05:56, skipping insertion in model container [2020-11-29 19:05:56,308 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:05:56,308 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:05:55" (2/3) ... [2020-11-29 19:05:56,308 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@580e2d18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 07:05:56, skipping insertion in model container [2020-11-29 19:05:56,309 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 19:05:56,309 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:05:56" (3/3) ... [2020-11-29 19:05:56,310 INFO L373 chiAutomizerObserver]: Analyzing ICFG KroeningSharyginaTsitovichWintersteiger-2010CAV-Fig1-alloca.i [2020-11-29 19:05:56,370 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 19:05:56,370 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 19:05:56,370 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 19:05:56,370 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:05:56,370 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:05:56,371 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 19:05:56,371 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:05:56,371 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 19:05:56,383 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-11-29 19:05:56,426 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-29 19:05:56,426 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:05:56,427 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:05:56,433 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-29 19:05:56,434 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-29 19:05:56,434 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 19:05:56,434 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-11-29 19:05:56,435 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-29 19:05:56,435 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:05:56,436 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:05:56,436 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-29 19:05:56,436 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-29 19:05:56,444 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet4, main_#t~mem6, main_#t~mem7, main_#t~post8, main_#t~mem9, main_#t~mem10, main_#t~mem5, main_~x~0.base, main_~x~0.offset, main_~debug~0.base, main_~debug~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~debug~0.base, main_~debug~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(main_#t~nondet4, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet4;call write~int(0, main_~debug~0.base, main_~debug~0.offset, 4); 10#L558-2true [2020-11-29 19:05:56,445 INFO L796 eck$LassoCheckResult]: Loop: 10#L558-2true call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4); 8#L552-1true assume !!(main_#t~mem5 < 255);havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4); 4#L553true assume !(0 != (if main_#t~mem6 < 0 && 0 != main_#t~mem6 % 2 then main_#t~mem6 % 2 - 2 else main_#t~mem6 % 2));havoc main_#t~mem6;call main_#t~mem9 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(2 + main_#t~mem9, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem9; 9#L553-2true call main_#t~mem10 := read~int(main_~debug~0.base, main_~debug~0.offset, 4); 5#L558true assume 0 != main_#t~mem10;havoc main_#t~mem10;call write~int(0, main_~x~0.base, main_~x~0.offset, 4); 10#L558-2true [2020-11-29 19:05:56,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:05:56,452 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-11-29 19:05:56,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:05:56,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096164686] [2020-11-29 19:05:56,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:05:56,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:05:56,683 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:05:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:05:56,731 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:05:56,764 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:05:56,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:05:56,771 INFO L82 PathProgramCache]: Analyzing trace with hash 35468238, now seen corresponding path program 1 times [2020-11-29 19:05:56,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:05:56,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502024279] [2020-11-29 19:05:56,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:05:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:05:56,835 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:05:56,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:05:56,886 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:05:56,900 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:05:56,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:05:56,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1806907724, now seen corresponding path program 1 times [2020-11-29 19:05:56,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:05:56,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780662325] [2020-11-29 19:05:56,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:05:56,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:05:57,137 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 19:05:57,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780662325] [2020-11-29 19:05:57,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:05:57,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 19:05:57,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971971759] [2020-11-29 19:05:57,383 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2020-11-29 19:05:57,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:05:57,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:05:57,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:05:57,409 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 5 states. [2020-11-29 19:05:57,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:05:57,501 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2020-11-29 19:05:57,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 19:05:57,503 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 12 transitions. [2020-11-29 19:05:57,504 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-29 19:05:57,508 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 7 states and 8 transitions. [2020-11-29 19:05:57,509 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-11-29 19:05:57,509 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-11-29 19:05:57,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2020-11-29 19:05:57,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:05:57,513 INFO L691 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2020-11-29 19:05:57,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2020-11-29 19:05:57,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-11-29 19:05:57,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-11-29 19:05:57,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2020-11-29 19:05:57,536 INFO L714 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2020-11-29 19:05:57,536 INFO L594 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2020-11-29 19:05:57,536 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 19:05:57,537 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2020-11-29 19:05:57,537 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-29 19:05:57,537 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:05:57,537 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:05:57,538 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-29 19:05:57,538 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-29 19:05:57,538 INFO L794 eck$LassoCheckResult]: Stem: 42#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 37#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet4, main_#t~mem6, main_#t~mem7, main_#t~post8, main_#t~mem9, main_#t~mem10, main_#t~mem5, main_~x~0.base, main_~x~0.offset, main_~debug~0.base, main_~debug~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~debug~0.base, main_~debug~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(main_#t~nondet4, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet4;call write~int(0, main_~debug~0.base, main_~debug~0.offset, 4); 38#L558-2 [2020-11-29 19:05:57,538 INFO L796 eck$LassoCheckResult]: Loop: 38#L558-2 call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4); 43#L552-1 assume !!(main_#t~mem5 < 255);havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4); 39#L553 assume !(0 != (if main_#t~mem6 < 0 && 0 != main_#t~mem6 % 2 then main_#t~mem6 % 2 - 2 else main_#t~mem6 % 2));havoc main_#t~mem6;call main_#t~mem9 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(2 + main_#t~mem9, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem9; 40#L553-2 call main_#t~mem10 := read~int(main_~debug~0.base, main_~debug~0.offset, 4); 41#L558 assume !(0 != main_#t~mem10);havoc main_#t~mem10; 38#L558-2 [2020-11-29 19:05:57,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:05:57,539 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2020-11-29 19:05:57,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:05:57,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738530583] [2020-11-29 19:05:57,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:05:57,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:05:57,551 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:05:57,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:05:57,560 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:05:57,563 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:05:57,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:05:57,564 INFO L82 PathProgramCache]: Analyzing trace with hash 35468240, now seen corresponding path program 1 times [2020-11-29 19:05:57,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:05:57,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096491651] [2020-11-29 19:05:57,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:05:57,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:05:57,576 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:05:57,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:05:57,584 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:05:57,587 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:05:57,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:05:57,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1806907726, now seen corresponding path program 1 times [2020-11-29 19:05:57,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:05:57,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999002099] [2020-11-29 19:05:57,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:05:57,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:05:57,605 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:05:57,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:05:57,621 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:05:57,626 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:05:58,001 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2020-11-29 19:05:58,126 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 19:05:58,127 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 19:05:58,127 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 19:05:58,128 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 19:05:58,130 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 19:05:58,130 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:58,130 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 19:05:58,130 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 19:05:58,130 INFO L133 ssoRankerPreferences]: Filename of dumped script: KroeningSharyginaTsitovichWintersteiger-2010CAV-Fig1-alloca.i_Iteration2_Lasso [2020-11-29 19:05:58,131 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 19:05:58,131 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 19:05:58,163 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 19:05:58,172 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 19:05:58,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:05:58,181 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 19:05:58,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:05:58,189 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 19:05:58,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:05:58,200 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 19:05:58,410 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2020-11-29 19:05:58,531 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2020-11-29 19:05:58,532 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 19:05:58,542 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 19:05:58,549 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 19:05:58,552 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 19:05:58,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:05:58,560 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 19:05:59,113 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 19:05:59,118 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ced00785-8a55-4e83-8734-ab25bf021346/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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:59,128 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 19:05:59,130 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:59,131 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:05:59,131 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:59,131 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:59,131 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:59,133 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:05:59,133 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:05:59,135 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ced00785-8a55-4e83-8734-ab25bf021346/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) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:59,191 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 19:05:59,193 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:59,193 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:05:59,193 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:59,194 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:59,194 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:59,195 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:05:59,195 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:05:59,197 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ced00785-8a55-4e83-8734-ab25bf021346/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 19:05:59,224 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 19:05:59,226 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:59,226 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:05:59,226 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:59,226 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:59,226 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:59,227 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:05:59,227 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:05:59,229 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ced00785-8a55-4e83-8734-ab25bf021346/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 19:05:59,268 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 19:05:59,271 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:59,271 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:05:59,271 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:59,271 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:59,271 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:59,275 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:05:59,275 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:05:59,283 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ced00785-8a55-4e83-8734-ab25bf021346/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 19:05:59,316 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 19:05:59,318 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:59,318 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:05:59,318 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:59,318 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:59,319 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:59,319 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:05:59,319 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:05:59,321 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ced00785-8a55-4e83-8734-ab25bf021346/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 19:05:59,347 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 19:05:59,348 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:59,349 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:59,349 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:59,349 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:59,353 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:59,353 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:59,374 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ced00785-8a55-4e83-8734-ab25bf021346/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:59,409 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 19:05:59,410 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:59,410 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:59,410 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:59,410 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:59,413 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:59,413 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:59,417 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ced00785-8a55-4e83-8734-ab25bf021346/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) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:59,451 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 19:05:59,453 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:59,453 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:59,454 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:59,454 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:59,483 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:59,483 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:59,498 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ced00785-8a55-4e83-8734-ab25bf021346/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:59,534 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 19:05:59,535 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:59,535 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:59,536 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:59,536 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:59,540 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:59,540 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:59,546 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ced00785-8a55-4e83-8734-ab25bf021346/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) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:59,571 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 19:05:59,573 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:59,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:59,573 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:59,573 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:59,577 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:59,577 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:59,594 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ced00785-8a55-4e83-8734-ab25bf021346/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 19:05:59,644 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 19:05:59,646 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:59,647 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:59,647 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:59,647 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:59,649 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:59,649 INFO L402 nArgumentSynthesizer]: A total of 2 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 19:05:59,654 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ced00785-8a55-4e83-8734-ab25bf021346/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) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:59,677 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 19:05:59,678 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:59,678 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:59,678 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:59,679 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:59,688 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:59,688 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:59,702 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ced00785-8a55-4e83-8734-ab25bf021346/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 19:05:59,745 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 19:05:59,747 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:59,748 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:59,748 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:59,748 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:05:59,752 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:59,753 INFO L402 nArgumentSynthesizer]: A total of 2 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 19:05:59,759 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ced00785-8a55-4e83-8734-ab25bf021346/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) [2020-11-29 19:05:59,795 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 19:05:59,798 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:05:59,798 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:05:59,798 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:05:59,798 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:59,827 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 19:05:59,827 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:05:59,834 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 19:05:59,859 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-11-29 19:05:59,860 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 2 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ced00785-8a55-4e83-8734-ab25bf021346/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 19:05:59,919 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:05:59,925 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 19:05:59,925 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 19:05:59,926 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_1) = -1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_1 + 255 Supporting invariants [] [2020-11-29 19:05:59,994 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2020-11-29 19:06:00,019 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-29 19:06:00,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:06:00,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:06:00,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 19:06:00,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:06:00,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:06:00,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 19:06:00,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:06:00,156 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2020-11-29 19:06:00,158 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 19:06:00,179 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 19:06:00,179 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 19:06:00,180 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:34, output treesize:17 [2020-11-29 19:06:00,207 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 19:06:00,211 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2020-11-29 19:06:00,212 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2 Second operand 5 states. [2020-11-29 19:06:00,274 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2. Second operand 5 states. Result 18 states and 21 transitions. Complement of second has 9 states. [2020-11-29 19:06:00,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-11-29 19:06:00,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-29 19:06:00,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2020-11-29 19:06:00,278 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 2 letters. Loop has 5 letters. [2020-11-29 19:06:00,279 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:06:00,279 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 7 letters. Loop has 5 letters. [2020-11-29 19:06:00,279 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:06:00,279 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 2 letters. Loop has 10 letters. [2020-11-29 19:06:00,280 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:06:00,280 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 21 transitions. [2020-11-29 19:06:00,283 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-29 19:06:00,285 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 21 transitions. [2020-11-29 19:06:00,285 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-11-29 19:06:00,285 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2020-11-29 19:06:00,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 21 transitions. [2020-11-29 19:06:00,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 19:06:00,286 INFO L691 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2020-11-29 19:06:00,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 21 transitions. [2020-11-29 19:06:00,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2020-11-29 19:06:00,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-29 19:06:00,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2020-11-29 19:06:00,291 INFO L714 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2020-11-29 19:06:00,291 INFO L594 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2020-11-29 19:06:00,291 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 19:06:00,291 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 20 transitions. [2020-11-29 19:06:00,292 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-29 19:06:00,292 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:06:00,294 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:06:00,295 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-29 19:06:00,295 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-29 19:06:00,296 INFO L794 eck$LassoCheckResult]: Stem: 166#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 156#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet4, main_#t~mem6, main_#t~mem7, main_#t~post8, main_#t~mem9, main_#t~mem10, main_#t~mem5, main_~x~0.base, main_~x~0.offset, main_~debug~0.base, main_~debug~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~debug~0.base, main_~debug~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(main_#t~nondet4, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet4;call write~int(0, main_~debug~0.base, main_~debug~0.offset, 4); 157#L558-2 call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4); 167#L552-1 assume !!(main_#t~mem5 < 255);havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4); 158#L553 assume 0 != (if main_#t~mem6 < 0 && 0 != main_#t~mem6 % 2 then main_#t~mem6 % 2 - 2 else main_#t~mem6 % 2);havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~post8 := main_#t~mem7;call write~int(main_#t~post8 - 1, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem7;havoc main_#t~post8; 159#L553-2 [2020-11-29 19:06:00,296 INFO L796 eck$LassoCheckResult]: Loop: 159#L553-2 call main_#t~mem10 := read~int(main_~debug~0.base, main_~debug~0.offset, 4); 169#L558 assume !(0 != main_#t~mem10);havoc main_#t~mem10; 172#L558-2 call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4); 171#L552-1 assume !!(main_#t~mem5 < 255);havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4); 170#L553 assume !(0 != (if main_#t~mem6 < 0 && 0 != main_#t~mem6 % 2 then main_#t~mem6 % 2 - 2 else main_#t~mem6 % 2));havoc main_#t~mem6;call main_#t~mem9 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(2 + main_#t~mem9, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem9; 159#L553-2 [2020-11-29 19:06:00,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:06:00,296 INFO L82 PathProgramCache]: Analyzing trace with hash 28695847, now seen corresponding path program 1 times [2020-11-29 19:06:00,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:06:00,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673954068] [2020-11-29 19:06:00,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:06:00,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:06:00,324 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:06:00,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:06:00,349 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:06:00,360 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:06:00,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:06:00,363 INFO L82 PathProgramCache]: Analyzing trace with hash 46898150, now seen corresponding path program 2 times [2020-11-29 19:06:00,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:06:00,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921322008] [2020-11-29 19:06:00,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:06:00,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:06:00,380 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:06:00,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:06:00,400 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:06:00,403 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:06:00,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:06:00,404 INFO L82 PathProgramCache]: Analyzing trace with hash 705693312, now seen corresponding path program 1 times [2020-11-29 19:06:00,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:06:00,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775276065] [2020-11-29 19:06:00,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:06:00,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:06:00,448 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:06:00,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:06:00,467 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:06:00,473 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:06:01,004 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 81 [2020-11-29 19:06:01,010 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-11-29 19:06:01,013 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 19:06:01,027 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 19:06:01,032 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 19:06:03,964 WARN L193 SmtUtils]: Spent 2.91 s on a formula simplification. DAG size of input: 111 DAG size of output: 103 [2020-11-29 19:06:03,992 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 19:06:03,992 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 19:06:03,992 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 19:06:03,992 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 19:06:03,992 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 19:06:03,992 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:06:03,992 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 19:06:03,993 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 19:06:03,993 INFO L133 ssoRankerPreferences]: Filename of dumped script: KroeningSharyginaTsitovichWintersteiger-2010CAV-Fig1-alloca.i_Iteration3_Lasso [2020-11-29 19:06:03,993 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 19:06:03,993 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 19:06:04,012 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 19:06:04,016 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 19:06:04,225 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 36 [2020-11-29 19:06:04,942 WARN L193 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2020-11-29 19:06:05,054 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 19:06:05,064 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 19:06:05,068 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 19:06:05,071 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 19:06:05,073 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 19:06:05,076 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 19:06:05,079 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 19:06:05,082 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 19:06:05,085 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 19:06:05,114 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 19:06:05,143 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 19:06:05,146 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 19:06:05,344 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 41 [2020-11-29 19:06:05,898 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2020-11-29 19:06:06,093 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 19:06:06,094 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ced00785-8a55-4e83-8734-ab25bf021346/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 19:06:06,104 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 19:06:06,106 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:06:06,106 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 19:06:06,106 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 19:06:06,106 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:06:06,106 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:06:06,107 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 19:06:06,107 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 19:06:06,108 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ced00785-8a55-4e83-8734-ab25bf021346/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 19:06:06,143 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 19:06:06,145 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 19:06:06,145 INFO L203 nArgumentSynthesizer]: 3 stem disjuncts [2020-11-29 19:06:06,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 19:06:06,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 19:06:06,163 INFO L401 nArgumentSynthesizer]: We have 10 Motzkin's Theorem applications. [2020-11-29 19:06:06,163 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 19:06:06,190 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 19:06:06,204 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-11-29 19:06:06,204 INFO L444 ModelExtractionUtils]: 1 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_ced00785-8a55-4e83-8734-ab25bf021346/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 19:06:06,218 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 19:06:06,221 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 19:06:06,221 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 19:06:06,221 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_2) = -1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_2 + 255 Supporting invariants [] [2020-11-29 19:06:06,313 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2020-11-29 19:06:06,315 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-29 19:06:06,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:06:06,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:06:06,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 19:06:06,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:06:06,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:06:06,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 19:06:06,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:06:06,417 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 19:06:06,418 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-11-29 19:06:06,418 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 20 transitions. cyclomatic complexity: 5 Second operand 5 states. [2020-11-29 19:06:06,454 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 20 transitions. cyclomatic complexity: 5. Second operand 5 states. Result 27 states and 32 transitions. Complement of second has 9 states. [2020-11-29 19:06:06,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-11-29 19:06:06,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-29 19:06:06,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2020-11-29 19:06:06,458 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 5 letters. Loop has 5 letters. [2020-11-29 19:06:06,459 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:06:06,459 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 10 letters. Loop has 5 letters. [2020-11-29 19:06:06,459 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:06:06,459 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 5 letters. Loop has 10 letters. [2020-11-29 19:06:06,459 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 19:06:06,460 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 32 transitions. [2020-11-29 19:06:06,461 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-29 19:06:06,462 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 27 states and 32 transitions. [2020-11-29 19:06:06,462 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2020-11-29 19:06:06,462 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2020-11-29 19:06:06,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 32 transitions. [2020-11-29 19:06:06,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 19:06:06,462 INFO L691 BuchiCegarLoop]: Abstraction has 27 states and 32 transitions. [2020-11-29 19:06:06,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 32 transitions. [2020-11-29 19:06:06,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-11-29 19:06:06,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-29 19:06:06,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2020-11-29 19:06:06,465 INFO L714 BuchiCegarLoop]: Abstraction has 27 states and 32 transitions. [2020-11-29 19:06:06,465 INFO L594 BuchiCegarLoop]: Abstraction has 27 states and 32 transitions. [2020-11-29 19:06:06,465 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 19:06:06,465 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 32 transitions. [2020-11-29 19:06:06,473 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-29 19:06:06,475 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 19:06:06,475 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 19:06:06,476 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1] [2020-11-29 19:06:06,476 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-29 19:06:06,476 INFO L794 eck$LassoCheckResult]: Stem: 312#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 302#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet4, main_#t~mem6, main_#t~mem7, main_#t~post8, main_#t~mem9, main_#t~mem10, main_#t~mem5, main_~x~0.base, main_~x~0.offset, main_~debug~0.base, main_~debug~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~debug~0.base, main_~debug~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(main_#t~nondet4, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet4;call write~int(0, main_~debug~0.base, main_~debug~0.offset, 4); 303#L558-2 call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4); 320#L552-1 assume !!(main_#t~mem5 < 255);havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4); 321#L553 assume 0 != (if main_#t~mem6 < 0 && 0 != main_#t~mem6 % 2 then main_#t~mem6 % 2 - 2 else main_#t~mem6 % 2);havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~post8 := main_#t~mem7;call write~int(main_#t~post8 - 1, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem7;havoc main_#t~post8; 319#L553-2 call main_#t~mem10 := read~int(main_~debug~0.base, main_~debug~0.offset, 4); 318#L558 assume !(0 != main_#t~mem10);havoc main_#t~mem10; 324#L558-2 call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4); 322#L552-1 assume !!(main_#t~mem5 < 255);havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4); 304#L553 assume 0 != (if main_#t~mem6 < 0 && 0 != main_#t~mem6 % 2 then main_#t~mem6 % 2 - 2 else main_#t~mem6 % 2);havoc main_#t~mem6;call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~post8 := main_#t~mem7;call write~int(main_#t~post8 - 1, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem7;havoc main_#t~post8; 305#L553-2 [2020-11-29 19:06:06,477 INFO L796 eck$LassoCheckResult]: Loop: 305#L553-2 call main_#t~mem10 := read~int(main_~debug~0.base, main_~debug~0.offset, 4); 308#L558 assume !(0 != main_#t~mem10);havoc main_#t~mem10; 309#L558-2 call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset, 4); 313#L552-1 assume !!(main_#t~mem5 < 255);havoc main_#t~mem5;call main_#t~mem6 := read~int(main_~x~0.base, main_~x~0.offset, 4); 314#L553 assume !(0 != (if main_#t~mem6 < 0 && 0 != main_#t~mem6 % 2 then main_#t~mem6 % 2 - 2 else main_#t~mem6 % 2));havoc main_#t~mem6;call main_#t~mem9 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(2 + main_#t~mem9, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem9; 305#L553-2 [2020-11-29 19:06:06,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:06:06,477 INFO L82 PathProgramCache]: Analyzing trace with hash 705693310, now seen corresponding path program 1 times [2020-11-29 19:06:06,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:06:06,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63234210] [2020-11-29 19:06:06,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:06:06,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:06:06,650 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:06:06,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63234210] [2020-11-29 19:06:06,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:06:06,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 19:06:06,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646826284] [2020-11-29 19:06:06,651 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 19:06:06,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:06:06,651 INFO L82 PathProgramCache]: Analyzing trace with hash 46898150, now seen corresponding path program 3 times [2020-11-29 19:06:06,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:06:06,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508032685] [2020-11-29 19:06:06,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:06:06,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:06:06,659 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:06:06,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:06:06,665 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:06:06,667 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:06:06,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:06:06,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:06:06,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:06:06,816 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. cyclomatic complexity: 8 Second operand 5 states. [2020-11-29 19:06:06,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:06:06,891 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2020-11-29 19:06:06,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 19:06:06,891 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 25 transitions. [2020-11-29 19:06:06,893 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 19:06:06,893 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 0 states and 0 transitions. [2020-11-29 19:06:06,893 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 19:06:06,893 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 19:06:06,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 19:06:06,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 19:06:06,893 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:06:06,893 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:06:06,893 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:06:06,893 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-29 19:06:06,893 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 19:06:06,893 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 19:06:06,894 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 19:06:06,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 07:06:06 BoogieIcfgContainer [2020-11-29 19:06:06,899 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 19:06:06,900 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:06:06,900 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:06:06,900 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:06:06,900 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:05:56" (3/4) ... [2020-11-29 19:06:06,908 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 19:06:06,908 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:06:06,911 INFO L168 Benchmark]: Toolchain (without parser) took 11637.90 ms. Allocated memory was 92.3 MB in the beginning and 136.3 MB in the end (delta: 44.0 MB). Free memory was 56.5 MB in the beginning and 55.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 45.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:06:06,912 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 75.5 MB. Free memory was 53.9 MB in the beginning and 53.9 MB in the end (delta: 27.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:06:06,913 INFO L168 Benchmark]: CACSL2BoogieTranslator took 576.46 ms. Allocated memory is still 92.3 MB. Free memory was 56.4 MB in the beginning and 58.5 MB in the end (delta: -2.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:06:06,914 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.65 ms. Allocated memory is still 92.3 MB. Free memory was 58.1 MB in the beginning and 56.5 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:06:06,918 INFO L168 Benchmark]: Boogie Preprocessor took 38.48 ms. Allocated memory is still 92.3 MB. Free memory was 56.5 MB in the beginning and 55.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:06:06,922 INFO L168 Benchmark]: RCFGBuilder took 350.74 ms. Allocated memory is still 92.3 MB. Free memory was 55.1 MB in the beginning and 41.8 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 19:06:06,922 INFO L168 Benchmark]: BuchiAutomizer took 10598.72 ms. Allocated memory was 92.3 MB in the beginning and 136.3 MB in the end (delta: 44.0 MB). Free memory was 41.7 MB in the beginning and 56.3 MB in the end (delta: -14.6 MB). Peak memory consumption was 32.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:06:06,925 INFO L168 Benchmark]: Witness Printer took 8.98 ms. Allocated memory is still 136.3 MB. Free memory was 56.3 MB in the beginning and 55.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:06:06,931 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 75.5 MB. Free memory was 53.9 MB in the beginning and 53.9 MB in the end (delta: 27.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 576.46 ms. Allocated memory is still 92.3 MB. Free memory was 56.4 MB in the beginning and 58.5 MB in the end (delta: -2.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.65 ms. Allocated memory is still 92.3 MB. Free memory was 58.1 MB in the beginning and 56.5 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.48 ms. Allocated memory is still 92.3 MB. Free memory was 56.5 MB in the beginning and 55.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 350.74 ms. Allocated memory is still 92.3 MB. Free memory was 55.1 MB in the beginning and 41.8 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 10598.72 ms. Allocated memory was 92.3 MB in the beginning and 136.3 MB in the end (delta: 44.0 MB). Free memory was 41.7 MB in the beginning and 56.3 MB in the end (delta: -14.6 MB). Peak memory consumption was 32.5 MB. Max. memory is 16.1 GB. * Witness Printer took 8.98 ms. Allocated memory is still 136.3 MB. Free memory was 56.3 MB in the beginning and 55.3 MB in the end (delta: 1.0 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 #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 4 terminating modules (2 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[x][x] + 255 and consists of 5 locations. One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[x][x] + 255 and consists of 5 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.5s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 9.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 27 states and ocurred in iteration 3. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 23 SDtfs, 22 SDslu, 17 SDs, 0 SdLazy, 61 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU1 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital494 mio100 ax106 hnf99 lsp379 ukn37 mio100 lsp73 div120 bol100 ite100 ukn100 eq163 hnf85 smp62 dnf175 smp81 tf100 neg99 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 90ms VariablesStem: 8 VariablesLoop: 4 DisjunctsStem: 3 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 10 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...