./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cstrncmp-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstrncmp-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f3eebd0d696af164582cbeee8be4a910d35e299c ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:42:31,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:42:31,770 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:42:31,818 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:42:31,819 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:42:31,821 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:42:31,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:42:31,826 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:42:31,828 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:42:31,830 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:42:31,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:42:31,837 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:42:31,837 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:42:31,839 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:42:31,840 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:42:31,842 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:42:31,843 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:42:31,845 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:42:31,848 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:42:31,851 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:42:31,853 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:42:31,855 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:42:31,857 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:42:31,859 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:42:31,863 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:42:31,864 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:42:31,864 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:42:31,865 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:42:31,866 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:42:31,868 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:42:31,868 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:42:31,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:42:31,871 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:42:31,872 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:42:31,874 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:42:31,874 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:42:31,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:42:31,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:42:31,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:42:31,878 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:42:31,879 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:42:31,880 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:42:31,910 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:42:31,910 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:42:31,912 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:42:31,912 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:42:31,912 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:42:31,913 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:42:31,913 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:42:31,913 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:42:31,913 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:42:31,914 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:42:31,914 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:42:31,914 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:42:31,914 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:42:31,915 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:42:31,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:42:31,915 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:42:31,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:42:31,916 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:42:31,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:42:31,916 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:42:31,916 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:42:31,917 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:42:31,917 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:42:31,917 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:42:31,918 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:42:31,918 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:42:31,918 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:42:31,918 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:42:31,919 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:42:31,919 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:42:31,919 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:42:31,920 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:42:31,921 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:42:31,921 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_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f3eebd0d696af164582cbeee8be4a910d35e299c [2020-11-30 00:42:32,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:42:32,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:42:32,223 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:42:32,225 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:42:32,226 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:42:32,227 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/openbsd_cstrncmp-alloca-2.i [2020-11-30 00:42:32,327 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/data/73c9a5470/2c5ad32dff8a46308fd93f1394a52623/FLAG4c3f2cc36 [2020-11-30 00:42:32,884 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:42:32,885 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/sv-benchmarks/c/array-memsafety/openbsd_cstrncmp-alloca-2.i [2020-11-30 00:42:32,903 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/data/73c9a5470/2c5ad32dff8a46308fd93f1394a52623/FLAG4c3f2cc36 [2020-11-30 00:42:33,143 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/data/73c9a5470/2c5ad32dff8a46308fd93f1394a52623 [2020-11-30 00:42:33,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:42:33,148 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:42:33,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:42:33,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:42:33,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:42:33,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:42:33" (1/1) ... [2020-11-30 00:42:33,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4319c925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:42:33, skipping insertion in model container [2020-11-30 00:42:33,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:42:33" (1/1) ... [2020-11-30 00:42:33,179 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:42:33,221 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:42:33,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:42:33,707 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:42:33,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:42:33,822 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:42:33,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:42:33 WrapperNode [2020-11-30 00:42:33,827 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:42:33,828 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:42:33,828 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:42:33,829 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:42:33,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:42:33" (1/1) ... [2020-11-30 00:42:33,859 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:42:33" (1/1) ... [2020-11-30 00:42:33,885 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:42:33,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:42:33,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:42:33,886 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:42:33,896 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:42:33" (1/1) ... [2020-11-30 00:42:33,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:42:33" (1/1) ... [2020-11-30 00:42:33,901 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:42:33" (1/1) ... [2020-11-30 00:42:33,901 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:42:33" (1/1) ... [2020-11-30 00:42:33,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:42:33" (1/1) ... [2020-11-30 00:42:33,914 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:42:33" (1/1) ... [2020-11-30 00:42:33,916 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:42:33" (1/1) ... [2020-11-30 00:42:33,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:42:33,921 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:42:33,921 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:42:33,921 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:42:33,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:42:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:42:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 00:42:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 00:42:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:42:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:42:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:42:34,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:42:34,523 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:42:34,523 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-30 00:42:34,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:42:34 BoogieIcfgContainer [2020-11-30 00:42:34,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:42:34,526 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:42:34,527 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:42:34,531 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:42:34,532 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:42:34,532 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:42:33" (1/3) ... [2020-11-30 00:42:34,534 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2415aa4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:42:34, skipping insertion in model container [2020-11-30 00:42:34,534 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:42:34,534 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:42:33" (2/3) ... [2020-11-30 00:42:34,535 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2415aa4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:42:34, skipping insertion in model container [2020-11-30 00:42:34,535 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:42:34,535 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:42:34" (3/3) ... [2020-11-30 00:42:34,536 INFO L373 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrncmp-alloca-2.i [2020-11-30 00:42:34,597 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:42:34,597 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:42:34,598 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:42:34,598 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:42:34,598 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:42:34,598 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:42:34,598 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:42:34,599 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:42:34,616 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states. [2020-11-30 00:42:34,639 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2020-11-30 00:42:34,639 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:42:34,639 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:42:34,646 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-30 00:42:34,654 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:42:34,654 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:42:34,654 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states. [2020-11-30 00:42:34,656 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2020-11-30 00:42:34,657 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:42:34,657 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:42:34,657 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-30 00:42:34,657 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:42:34,665 INFO L794 eck$LassoCheckResult]: Stem: 13#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 11#L-1true havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~nondet19, main_#t~ret20, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 19#L529true assume !(main_~length1~0 < 1); 24#L529-2true assume !(main_~length2~0 < 1); 14#L532-1true call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 7#L538-3true [2020-11-30 00:42:34,667 INFO L796 eck$LassoCheckResult]: Loop: 7#L538-3true assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 5#L538-2true main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 7#L538-3true [2020-11-30 00:42:34,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:42:34,675 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2020-11-30 00:42:34,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:42:34,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714726732] [2020-11-30 00:42:34,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:42:34,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:42:34,798 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:42:34,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:42:34,815 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:42:34,837 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:42:34,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:42:34,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2020-11-30 00:42:34,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:42:34,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704368184] [2020-11-30 00:42:34,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:42:34,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:42:34,853 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:42:34,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:42:34,862 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:42:34,865 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:42:34,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:42:34,867 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2020-11-30 00:42:34,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:42:34,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923857896] [2020-11-30 00:42:34,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:42:34,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:42:34,896 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:42:34,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:42:34,916 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:42:34,921 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:42:35,292 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-11-30 00:42:35,429 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-11-30 00:42:35,444 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:42:35,445 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:42:35,445 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:42:35,445 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:42:35,445 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:42:35,445 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:42:35,445 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:42:35,446 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:42:35,446 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrncmp-alloca-2.i_Iteration1_Lasso [2020-11-30 00:42:35,446 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:42:35,447 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:42:35,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:35,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:35,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:35,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:35,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:35,520 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:35,705 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2020-11-30 00:42:35,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:35,755 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:35,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:35,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:35,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:35,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:35,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:35,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:35,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:35,797 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:36,190 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:42:36,195 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/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 [2020-11-30 00:42:36,206 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:42:36,208 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:42:36,208 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:42:36,209 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:42:36,209 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:42:36,209 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:42:36,211 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:42:36,211 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:42:36,214 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:42:36,263 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:42:36,265 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:42:36,266 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:42:36,266 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:42:36,266 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:42:36,266 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:42:36,268 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:42:36,268 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:42:36,270 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:42:36,313 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:42:36,315 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:42:36,315 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:42:36,316 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:42:36,316 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:42:36,316 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:42:36,317 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:42:36,318 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:42:36,320 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:42:36,365 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:42:36,366 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:42:36,367 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:42:36,367 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:42:36,367 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:42:36,386 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:42:36,387 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:42:36,388 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:42:36,391 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/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 [2020-11-30 00:42:36,414 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:42:36,415 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:42:36,415 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:42:36,415 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:42:36,415 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:42:36,415 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:42:36,417 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:42:36,417 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:42:36,419 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:42:36,445 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:42:36,447 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:42:36,448 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:42:36,448 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:42:36,448 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:42:36,452 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:42:36,452 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:42:36,467 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:42:36,509 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:42:36,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:42:36,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:42:36,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:42:36,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:42:36,521 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:42:36,521 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:42:36,528 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:42:36,575 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:42:36,577 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:42:36,577 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:42:36,577 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:42:36,577 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:42:36,587 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:42:36,588 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:42:36,604 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:42:36,646 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:42:36,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:42:36,648 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:42:36,648 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:42:36,648 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:42:36,648 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:42:36,649 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:42:36,649 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:42:36,652 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:42:36,698 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:42:36,700 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:42:36,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:42:36,701 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:42:36,701 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:42:36,704 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:42:36,704 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:42:36,709 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:42:36,750 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:42:36,752 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:42:36,752 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:42:36,752 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:42:36,752 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:42:36,755 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:42:36,755 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 [2020-11-30 00:42:36,759 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:42:36,801 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:42:36,802 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:42:36,802 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:42:36,803 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:42:36,803 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:42:36,803 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:42:36,804 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:42:36,804 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:42:36,806 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:42:36,846 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:42:36,848 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:42:36,848 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:42:36,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:42:36,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:42:36,856 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:42:36,856 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 [2020-11-30 00:42:36,869 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:42:36,913 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-11-30 00:42:36,913 INFO L444 ModelExtractionUtils]: 6 out of 22 variables were initially zero. Simplification set additionally 13 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/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) [2020-11-30 00:42:36,920 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:42:36,928 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-30 00:42:36,928 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:42:36,929 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~length1~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-11-30 00:42:37,013 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2020-11-30 00:42:37,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:42:37,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:42:37,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:42:37,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:42:37,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:42:37,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:42:37,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:42:37,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:42:37,136 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-30 00:42:37,138 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states. Second operand 3 states. [2020-11-30 00:42:37,192 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states.. Second operand 3 states. Result 54 states and 79 transitions. Complement of second has 7 states. [2020-11-30 00:42:37,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-30 00:42:37,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-30 00:42:37,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 53 transitions. [2020-11-30 00:42:37,197 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 53 transitions. Stem has 5 letters. Loop has 2 letters. [2020-11-30 00:42:37,198 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:42:37,198 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 53 transitions. Stem has 7 letters. Loop has 2 letters. [2020-11-30 00:42:37,199 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:42:37,199 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 53 transitions. Stem has 5 letters. Loop has 4 letters. [2020-11-30 00:42:37,199 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:42:37,200 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 79 transitions. [2020-11-30 00:42:37,207 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2020-11-30 00:42:37,213 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 18 states and 23 transitions. [2020-11-30 00:42:37,214 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2020-11-30 00:42:37,215 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2020-11-30 00:42:37,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2020-11-30 00:42:37,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:42:37,216 INFO L691 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2020-11-30 00:42:37,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2020-11-30 00:42:37,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-11-30 00:42:37,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-30 00:42:37,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2020-11-30 00:42:37,247 INFO L714 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2020-11-30 00:42:37,247 INFO L594 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2020-11-30 00:42:37,247 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:42:37,247 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2020-11-30 00:42:37,257 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2020-11-30 00:42:37,258 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:42:37,258 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:42:37,259 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:42:37,259 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:42:37,259 INFO L794 eck$LassoCheckResult]: Stem: 161#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 157#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~nondet19, main_#t~ret20, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 158#L529 assume !(main_~length1~0 < 1); 165#L529-2 assume !(main_~length2~0 < 1); 162#L532-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 154#L538-3 assume !(main_~i~0 < main_~length1~0 - 1); 155#L538-4 main_~i~1 := 0; 156#L543-3 [2020-11-30 00:42:37,259 INFO L796 eck$LassoCheckResult]: Loop: 156#L543-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet18, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet18; 163#L543-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 156#L543-3 [2020-11-30 00:42:37,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:42:37,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935662, now seen corresponding path program 1 times [2020-11-30 00:42:37,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:42:37,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38205342] [2020-11-30 00:42:37,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:42:37,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:42:37,298 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:42:37,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:42:37,334 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:42:37,338 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:42:37,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:42:37,339 INFO L82 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 1 times [2020-11-30 00:42:37,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:42:37,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810990871] [2020-11-30 00:42:37,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:42:37,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:42:37,347 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:42:37,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:42:37,352 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:42:37,354 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:42:37,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:42:37,355 INFO L82 PathProgramCache]: Analyzing trace with hash 1298384784, now seen corresponding path program 1 times [2020-11-30 00:42:37,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:42:37,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632180909] [2020-11-30 00:42:37,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:42:37,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:42:37,375 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:42:37,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:42:37,389 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:42:37,394 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:42:37,702 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2020-11-30 00:42:37,792 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:42:37,792 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:42:37,792 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:42:37,792 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:42:37,792 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:42:37,792 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:42:37,792 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:42:37,792 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:42:37,793 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrncmp-alloca-2.i_Iteration2_Lasso [2020-11-30 00:42:37,793 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:42:37,793 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:42:37,797 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:37,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:37,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:37,817 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:37,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:37,824 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:37,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:37,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:37,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:37,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:38,017 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2020-11-30 00:42:38,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:38,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:38,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:38,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:38,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:38,454 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:42:38,454 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/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) [2020-11-30 00:42:38,463 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:42:38,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:42:38,465 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:42:38,465 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:42:38,466 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:42:38,466 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:42:38,471 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:42:38,471 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:42:38,473 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:42:38,502 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:42:38,504 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:42:38,504 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:42:38,504 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:42:38,504 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:42:38,504 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:42:38,505 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:42:38,505 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:42:38,506 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:42:38,553 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:42:38,555 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:42:38,555 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:42:38,555 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:42:38,555 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:42:38,562 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:42:38,562 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:42:38,568 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:42:38,592 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:42:38,594 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:42:38,594 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:42:38,594 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:42:38,594 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:42:38,595 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:42:38,595 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:42:38,595 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:42:38,597 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:42:38,626 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:42:38,628 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:42:38,628 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:42:38,628 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:42:38,629 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:42:38,629 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:42:38,629 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:42:38,629 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:42:38,630 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:42:38,655 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:42:38,657 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:42:38,657 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:42:38,657 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:42:38,657 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:42:38,660 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:42:38,660 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:42:38,670 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:42:38,714 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:42:38,716 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:42:38,716 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:42:38,716 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:42:38,716 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:42:38,716 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:42:38,717 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:42:38,717 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:42:38,719 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:42:38,743 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:42:38,745 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:42:38,745 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:42:38,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:42:38,746 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:42:38,746 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:42:38,746 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:42:38,747 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:42:38,750 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:42:38,780 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:42:38,782 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:42:38,782 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:42:38,782 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:42:38,783 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:42:38,785 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:42:38,785 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:42:38,790 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:42:38,831 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:42:38,833 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:42:38,833 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:42:38,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:42:38,833 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:42:38,838 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:42:38,838 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:42:38,843 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:42:38,887 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:42:38,889 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:42:38,889 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:42:38,889 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:42:38,890 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:42:38,896 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:42:38,896 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:42:38,905 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:42:38,933 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:42:38,934 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:42:38,935 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:42:38,935 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:42:38,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:42:38,939 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:42:38,940 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:42:38,946 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:42:38,975 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:42:38,976 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:42:38,976 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:42:38,976 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:42:38,976 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:42:38,977 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:42:38,977 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:42:38,977 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:42:38,983 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:42:39,007 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:42:39,008 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:42:39,009 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:42:39,009 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:42:39,009 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:42:39,011 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:42:39,011 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:42:39,014 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:42:39,038 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:42:39,039 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:42:39,039 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:42:39,039 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:42:39,039 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:42:39,039 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:42:39,040 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:42:39,040 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:42:39,052 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:42:39,077 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:42:39,079 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:42:39,079 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:42:39,079 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:42:39,080 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:42:39,088 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:42:39,088 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:42:39,110 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:42:39,159 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2020-11-30 00:42:39,160 INFO L444 ModelExtractionUtils]: 6 out of 22 variables were initially zero. Simplification set additionally 13 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:42:39,163 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:42:39,166 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-30 00:42:39,167 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:42:39,167 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1, ULTIMATE.start_main_~length2~0) = -1*ULTIMATE.start_main_~i~1 + 1*ULTIMATE.start_main_~length2~0 Supporting invariants [] [2020-11-30 00:42:39,219 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2020-11-30 00:42:39,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:42:39,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:42:39,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:42:39,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:42:39,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:42:39,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:42:39,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:42:39,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:42:39,284 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-30 00:42:39,284 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 8 Second operand 3 states. [2020-11-30 00:42:39,311 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 27 states and 36 transitions. Complement of second has 6 states. [2020-11-30 00:42:39,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-30 00:42:39,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-30 00:42:39,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2020-11-30 00:42:39,315 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 7 letters. Loop has 2 letters. [2020-11-30 00:42:39,315 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:42:39,315 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 9 letters. Loop has 2 letters. [2020-11-30 00:42:39,315 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:42:39,315 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 7 letters. Loop has 4 letters. [2020-11-30 00:42:39,316 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:42:39,316 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 36 transitions. [2020-11-30 00:42:39,318 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-30 00:42:39,318 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 19 states and 25 transitions. [2020-11-30 00:42:39,318 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-11-30 00:42:39,319 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-11-30 00:42:39,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 25 transitions. [2020-11-30 00:42:39,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:42:39,319 INFO L691 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2020-11-30 00:42:39,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 25 transitions. [2020-11-30 00:42:39,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-11-30 00:42:39,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-30 00:42:39,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2020-11-30 00:42:39,322 INFO L714 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2020-11-30 00:42:39,323 INFO L594 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2020-11-30 00:42:39,324 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:42:39,324 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 25 transitions. [2020-11-30 00:42:39,325 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-30 00:42:39,325 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:42:39,325 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:42:39,326 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:42:39,326 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-30 00:42:39,326 INFO L794 eck$LassoCheckResult]: Stem: 280#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 276#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~nondet19, main_#t~ret20, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 277#L529 assume !(main_~length1~0 < 1); 285#L529-2 assume !(main_~length2~0 < 1); 281#L532-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 273#L538-3 assume !(main_~i~0 < main_~length1~0 - 1); 274#L538-4 main_~i~1 := 0; 275#L543-3 assume !(main_~i~1 < main_~length2~0 - 1); 284#L543-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset, cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset, cstrncmp_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_#t~nondet19;havoc cstrncmp_#res;havoc cstrncmp_#t~mem4, cstrncmp_#t~post3.base, cstrncmp_#t~post3.offset, cstrncmp_#t~mem5, cstrncmp_#t~mem7, cstrncmp_#t~pre6.base, cstrncmp_#t~pre6.offset, cstrncmp_#t~mem8, cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset, cstrncmp_#t~mem10, cstrncmp_#t~pre2, cstrncmp_~s1.base, cstrncmp_~s1.offset, cstrncmp_~s2.base, cstrncmp_~s2.offset, cstrncmp_~n;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset;cstrncmp_~n := cstrncmp_#in~n; 269#L516 assume !(0 == cstrncmp_~n % 4294967296); 268#L518-4 [2020-11-30 00:42:39,327 INFO L796 eck$LassoCheckResult]: Loop: 268#L518-4 call cstrncmp_#t~mem4 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);cstrncmp_#t~post3.base, cstrncmp_#t~post3.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#t~post3.base, 1 + cstrncmp_#t~post3.offset;call cstrncmp_#t~mem5 := read~int(cstrncmp_#t~post3.base, cstrncmp_#t~post3.offset, 1); 272#L519 assume !(cstrncmp_#t~mem4 != cstrncmp_#t~mem5);havoc cstrncmp_#t~mem5;havoc cstrncmp_#t~post3.base, cstrncmp_#t~post3.offset;havoc cstrncmp_#t~mem4;cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset := cstrncmp_~s1.base, cstrncmp_~s1.offset;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#t~post9.base, 1 + cstrncmp_#t~post9.offset;call cstrncmp_#t~mem10 := read~int(cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset, 1); 278#L521 assume !(0 == cstrncmp_#t~mem10);havoc cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset;havoc cstrncmp_#t~mem10; 279#L518-1 cstrncmp_#t~pre2 := cstrncmp_~n - 1;cstrncmp_~n := cstrncmp_~n - 1; 267#L518-2 assume !!(0 != cstrncmp_#t~pre2 % 4294967296);havoc cstrncmp_#t~pre2; 268#L518-4 [2020-11-30 00:42:39,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:42:39,327 INFO L82 PathProgramCache]: Analyzing trace with hash 1595220890, now seen corresponding path program 1 times [2020-11-30 00:42:39,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:42:39,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969425301] [2020-11-30 00:42:39,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:42:39,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:42:39,378 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:42:39,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:42:39,398 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:42:39,404 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:42:39,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:42:39,405 INFO L82 PathProgramCache]: Analyzing trace with hash 78411965, now seen corresponding path program 1 times [2020-11-30 00:42:39,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:42:39,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464247787] [2020-11-30 00:42:39,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:42:39,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:42:39,422 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:42:39,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:42:39,441 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:42:39,444 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:42:39,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:42:39,449 INFO L82 PathProgramCache]: Analyzing trace with hash -1989497660, now seen corresponding path program 1 times [2020-11-30 00:42:39,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:42:39,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077846485] [2020-11-30 00:42:39,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:42:39,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:42:39,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:42:39,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077846485] [2020-11-30 00:42:39,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:42:39,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-30 00:42:39,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070669512] [2020-11-30 00:42:40,041 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2020-11-30 00:42:40,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:42:40,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 00:42:40,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:42:40,103 INFO L87 Difference]: Start difference. First operand 19 states and 25 transitions. cyclomatic complexity: 9 Second operand 7 states. [2020-11-30 00:42:40,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:42:40,229 INFO L93 Difference]: Finished difference Result 29 states and 36 transitions. [2020-11-30 00:42:40,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 00:42:40,230 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2020-11-30 00:42:40,231 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-30 00:42:40,232 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 20 states and 25 transitions. [2020-11-30 00:42:40,232 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2020-11-30 00:42:40,232 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-11-30 00:42:40,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 25 transitions. [2020-11-30 00:42:40,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:42:40,233 INFO L691 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2020-11-30 00:42:40,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 25 transitions. [2020-11-30 00:42:40,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2020-11-30 00:42:40,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-30 00:42:40,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2020-11-30 00:42:40,235 INFO L714 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2020-11-30 00:42:40,235 INFO L594 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2020-11-30 00:42:40,235 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-30 00:42:40,235 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 24 transitions. [2020-11-30 00:42:40,236 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-30 00:42:40,236 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:42:40,236 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:42:40,237 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:42:40,237 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-30 00:42:40,237 INFO L794 eck$LassoCheckResult]: Stem: 344#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 340#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~nondet19, main_#t~ret20, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 341#L529 assume !(main_~length1~0 < 1); 349#L529-2 assume !(main_~length2~0 < 1); 345#L532-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 337#L538-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 334#L538-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 335#L538-3 assume !(main_~i~0 < main_~length1~0 - 1); 338#L538-4 main_~i~1 := 0; 339#L543-3 assume !(main_~i~1 < main_~length2~0 - 1); 348#L543-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset, cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset, cstrncmp_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_#t~nondet19;havoc cstrncmp_#res;havoc cstrncmp_#t~mem4, cstrncmp_#t~post3.base, cstrncmp_#t~post3.offset, cstrncmp_#t~mem5, cstrncmp_#t~mem7, cstrncmp_#t~pre6.base, cstrncmp_#t~pre6.offset, cstrncmp_#t~mem8, cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset, cstrncmp_#t~mem10, cstrncmp_#t~pre2, cstrncmp_~s1.base, cstrncmp_~s1.offset, cstrncmp_~s2.base, cstrncmp_~s2.offset, cstrncmp_~n;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset;cstrncmp_~n := cstrncmp_#in~n; 331#L516 assume !(0 == cstrncmp_~n % 4294967296); 332#L518-4 [2020-11-30 00:42:40,237 INFO L796 eck$LassoCheckResult]: Loop: 332#L518-4 call cstrncmp_#t~mem4 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);cstrncmp_#t~post3.base, cstrncmp_#t~post3.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#t~post3.base, 1 + cstrncmp_#t~post3.offset;call cstrncmp_#t~mem5 := read~int(cstrncmp_#t~post3.base, cstrncmp_#t~post3.offset, 1); 336#L519 assume !(cstrncmp_#t~mem4 != cstrncmp_#t~mem5);havoc cstrncmp_#t~mem5;havoc cstrncmp_#t~post3.base, cstrncmp_#t~post3.offset;havoc cstrncmp_#t~mem4;cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset := cstrncmp_~s1.base, cstrncmp_~s1.offset;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#t~post9.base, 1 + cstrncmp_#t~post9.offset;call cstrncmp_#t~mem10 := read~int(cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset, 1); 342#L521 assume !(0 == cstrncmp_#t~mem10);havoc cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset;havoc cstrncmp_#t~mem10; 343#L518-1 cstrncmp_#t~pre2 := cstrncmp_~n - 1;cstrncmp_~n := cstrncmp_~n - 1; 333#L518-2 assume !!(0 != cstrncmp_#t~pre2 % 4294967296);havoc cstrncmp_#t~pre2; 332#L518-4 [2020-11-30 00:42:40,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:42:40,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1351083896, now seen corresponding path program 1 times [2020-11-30 00:42:40,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:42:40,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319075616] [2020-11-30 00:42:40,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:42:40,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:42:40,253 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:42:40,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:42:40,265 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:42:40,269 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:42:40,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:42:40,270 INFO L82 PathProgramCache]: Analyzing trace with hash 78411965, now seen corresponding path program 2 times [2020-11-30 00:42:40,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:42:40,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345978587] [2020-11-30 00:42:40,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:42:40,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:42:40,280 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:42:40,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:42:40,288 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:42:40,290 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:42:40,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:42:40,291 INFO L82 PathProgramCache]: Analyzing trace with hash -351427674, now seen corresponding path program 1 times [2020-11-30 00:42:40,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:42:40,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879309932] [2020-11-30 00:42:40,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:42:40,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:42:40,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-30 00:42:40,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879309932] [2020-11-30 00:42:40,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:42:40,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-30 00:42:40,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57519678] [2020-11-30 00:42:40,749 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2020-11-30 00:42:40,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:42:40,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-30 00:42:40,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-30 00:42:40,823 INFO L87 Difference]: Start difference. First operand 19 states and 24 transitions. cyclomatic complexity: 8 Second operand 9 states. [2020-11-30 00:42:40,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:42:40,963 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2020-11-30 00:42:40,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 00:42:40,964 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 29 transitions. [2020-11-30 00:42:40,965 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-30 00:42:40,965 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 20 states and 24 transitions. [2020-11-30 00:42:40,966 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2020-11-30 00:42:40,966 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-11-30 00:42:40,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 24 transitions. [2020-11-30 00:42:40,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:42:40,966 INFO L691 BuchiCegarLoop]: Abstraction has 20 states and 24 transitions. [2020-11-30 00:42:40,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 24 transitions. [2020-11-30 00:42:40,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2020-11-30 00:42:40,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-30 00:42:40,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2020-11-30 00:42:40,968 INFO L714 BuchiCegarLoop]: Abstraction has 19 states and 23 transitions. [2020-11-30 00:42:40,968 INFO L594 BuchiCegarLoop]: Abstraction has 19 states and 23 transitions. [2020-11-30 00:42:40,969 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-30 00:42:40,969 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 23 transitions. [2020-11-30 00:42:40,972 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-30 00:42:40,972 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:42:40,972 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:42:40,973 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:42:40,973 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-30 00:42:40,973 INFO L794 eck$LassoCheckResult]: Stem: 408#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 404#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~nondet19, main_#t~ret20, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 405#L529 assume !(main_~length1~0 < 1); 413#L529-2 assume !(main_~length2~0 < 1); 409#L532-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 401#L538-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 398#L538-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 399#L538-3 assume !(main_~i~0 < main_~length1~0 - 1); 402#L538-4 main_~i~1 := 0; 403#L543-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet18, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet18; 410#L543-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 411#L543-3 assume !(main_~i~1 < main_~length2~0 - 1); 412#L543-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset, cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset, cstrncmp_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_#t~nondet19;havoc cstrncmp_#res;havoc cstrncmp_#t~mem4, cstrncmp_#t~post3.base, cstrncmp_#t~post3.offset, cstrncmp_#t~mem5, cstrncmp_#t~mem7, cstrncmp_#t~pre6.base, cstrncmp_#t~pre6.offset, cstrncmp_#t~mem8, cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset, cstrncmp_#t~mem10, cstrncmp_#t~pre2, cstrncmp_~s1.base, cstrncmp_~s1.offset, cstrncmp_~s2.base, cstrncmp_~s2.offset, cstrncmp_~n;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset;cstrncmp_~n := cstrncmp_#in~n; 395#L516 assume !(0 == cstrncmp_~n % 4294967296); 396#L518-4 [2020-11-30 00:42:40,973 INFO L796 eck$LassoCheckResult]: Loop: 396#L518-4 call cstrncmp_#t~mem4 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);cstrncmp_#t~post3.base, cstrncmp_#t~post3.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#t~post3.base, 1 + cstrncmp_#t~post3.offset;call cstrncmp_#t~mem5 := read~int(cstrncmp_#t~post3.base, cstrncmp_#t~post3.offset, 1); 400#L519 assume !(cstrncmp_#t~mem4 != cstrncmp_#t~mem5);havoc cstrncmp_#t~mem5;havoc cstrncmp_#t~post3.base, cstrncmp_#t~post3.offset;havoc cstrncmp_#t~mem4;cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset := cstrncmp_~s1.base, cstrncmp_~s1.offset;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#t~post9.base, 1 + cstrncmp_#t~post9.offset;call cstrncmp_#t~mem10 := read~int(cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset, 1); 406#L521 assume !(0 == cstrncmp_#t~mem10);havoc cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset;havoc cstrncmp_#t~mem10; 407#L518-1 cstrncmp_#t~pre2 := cstrncmp_~n - 1;cstrncmp_~n := cstrncmp_~n - 1; 397#L518-2 assume !!(0 != cstrncmp_#t~pre2 % 4294967296);havoc cstrncmp_#t~pre2; 396#L518-4 [2020-11-30 00:42:40,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:42:40,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1313217430, now seen corresponding path program 1 times [2020-11-30 00:42:40,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:42:40,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405569484] [2020-11-30 00:42:40,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:42:40,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:42:41,006 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:42:41,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:42:41,024 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:42:41,033 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:42:41,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:42:41,037 INFO L82 PathProgramCache]: Analyzing trace with hash 78411965, now seen corresponding path program 3 times [2020-11-30 00:42:41,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:42:41,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498516401] [2020-11-30 00:42:41,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:42:41,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:42:41,052 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:42:41,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:42:41,064 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:42:41,070 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:42:41,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:42:41,071 INFO L82 PathProgramCache]: Analyzing trace with hash -1019129272, now seen corresponding path program 1 times [2020-11-30 00:42:41,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:42:41,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579764821] [2020-11-30 00:42:41,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:42:41,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:42:41,109 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:42:41,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:42:41,158 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:42:41,170 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:42:41,346 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2020-11-30 00:42:42,160 WARN L193 SmtUtils]: Spent 766.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 120 [2020-11-30 00:42:42,417 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-11-30 00:42:42,425 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:42:42,426 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:42:42,426 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:42:42,426 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:42:42,426 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:42:42,426 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:42:42,426 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:42:42,426 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:42:42,426 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrncmp-alloca-2.i_Iteration5_Lasso [2020-11-30 00:42:42,426 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:42:42,426 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:42:42,431 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:42,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:43,132 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 88 [2020-11-30 00:42:43,347 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2020-11-30 00:42:43,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:43,366 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:43,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:43,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:43,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:43,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:43,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:43,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:43,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:43,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:43,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:43,402 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:43,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:43,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:43,412 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:43,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:43,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:43,419 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:43,431 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:43,434 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:43,437 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:43,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:43,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:43,445 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:43,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:43,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:42:43,857 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2020-11-30 00:42:44,535 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:42:44,542 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:42:44,551 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:42:44,552 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:42:44,552 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:42:44,552 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:42:44,552 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:42:44,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:42:44,553 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:42:44,553 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:42:44,554 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:42:44,583 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:42:44,585 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:42:44,585 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:42:44,585 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-30 00:42:44,585 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:42:44,623 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2020-11-30 00:42:44,623 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-11-30 00:42:44,644 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:42:44,687 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:42:44,689 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:42:44,689 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:42:44,689 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:42:44,689 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:42:44,694 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:42:44,695 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:42:44,701 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:42:44,744 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:42:44,749 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:42:44,749 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:42:44,749 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:42:44,749 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:42:44,771 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:42:44,771 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:42:44,786 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:42:44,830 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:42:44,831 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:42:44,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:42:44,832 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:42:44,832 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:42:44,837 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:42:44,837 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:42:44,841 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:42:44,884 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:42:44,887 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:42:44,888 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:42:44,888 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:42:44,888 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:42:44,912 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:42:44,912 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:42:44,946 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:42:45,098 INFO L443 ModelExtractionUtils]: Simplification made 30 calls to the SMT solver. [2020-11-30 00:42:45,098 INFO L444 ModelExtractionUtils]: 16 out of 55 variables were initially zero. Simplification set additionally 36 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43c5188a-53bd-4f31-84d5-6eaf6db2a5f0/bin/uautomizer/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:42:45,101 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:42:45,104 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-30 00:42:45,105 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:42:45,105 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrncmp_~s2.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc14.base)_3) = -1*ULTIMATE.start_cstrncmp_~s2.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc14.base)_3 Supporting invariants [] [2020-11-30 00:42:45,232 INFO L297 tatePredicateManager]: 23 out of 24 supporting invariants were superfluous and have been removed [2020-11-30 00:42:45,234 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 00:42:45,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:42:45,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:42:45,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 00:42:45,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:42:45,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:42:45,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-30 00:42:45,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:42:45,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:42:45,381 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2020-11-30 00:42:45,381 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 23 transitions. cyclomatic complexity: 7 Second operand 5 states. [2020-11-30 00:42:45,464 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 23 transitions. cyclomatic complexity: 7. Second operand 5 states. Result 24 states and 28 transitions. Complement of second has 6 states. [2020-11-30 00:42:45,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-30 00:42:45,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-30 00:42:45,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2020-11-30 00:42:45,466 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 14 letters. Loop has 5 letters. [2020-11-30 00:42:45,466 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:42:45,466 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 19 letters. Loop has 5 letters. [2020-11-30 00:42:45,466 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:42:45,466 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 14 letters. Loop has 10 letters. [2020-11-30 00:42:45,467 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:42:45,467 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 28 transitions. [2020-11-30 00:42:45,468 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:42:45,473 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2020-11-30 00:42:45,474 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-30 00:42:45,474 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-30 00:42:45,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-30 00:42:45,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:42:45,474 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:42:45,474 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:42:45,474 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:42:45,474 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-30 00:42:45,475 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:42:45,475 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:42:45,475 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-30 00:42:45,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:42:45 BoogieIcfgContainer [2020-11-30 00:42:45,481 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:42:45,482 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:42:45,482 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:42:45,482 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:42:45,483 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:42:34" (3/4) ... [2020-11-30 00:42:45,486 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 00:42:45,486 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:42:45,487 INFO L168 Benchmark]: Toolchain (without parser) took 12339.32 ms. Allocated memory was 86.0 MB in the beginning and 184.5 MB in the end (delta: 98.6 MB). Free memory was 52.8 MB in the beginning and 87.2 MB in the end (delta: -34.5 MB). Peak memory consumption was 63.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:42:45,488 INFO L168 Benchmark]: CDTParser took 1.00 ms. Allocated memory is still 86.0 MB. Free memory was 42.5 MB in the beginning and 42.4 MB in the end (delta: 75.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:42:45,489 INFO L168 Benchmark]: CACSL2BoogieTranslator took 664.98 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 52.6 MB in the beginning and 70.8 MB in the end (delta: -18.2 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:42:45,495 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.81 ms. Allocated memory is still 104.9 MB. Free memory was 70.8 MB in the beginning and 68.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:42:45,496 INFO L168 Benchmark]: Boogie Preprocessor took 34.05 ms. Allocated memory is still 104.9 MB. Free memory was 68.7 MB in the beginning and 67.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:42:45,496 INFO L168 Benchmark]: RCFGBuilder took 604.62 ms. Allocated memory is still 104.9 MB. Free memory was 67.3 MB in the beginning and 77.2 MB in the end (delta: -9.9 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:42:45,499 INFO L168 Benchmark]: BuchiAutomizer took 10954.59 ms. Allocated memory was 104.9 MB in the beginning and 184.5 MB in the end (delta: 79.7 MB). Free memory was 77.0 MB in the beginning and 88.3 MB in the end (delta: -11.3 MB). Peak memory consumption was 68.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:42:45,500 INFO L168 Benchmark]: Witness Printer took 4.90 ms. Allocated memory is still 184.5 MB. Free memory was 88.3 MB in the beginning and 87.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:42:45,505 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.00 ms. Allocated memory is still 86.0 MB. Free memory was 42.5 MB in the beginning and 42.4 MB in the end (delta: 75.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 664.98 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 52.6 MB in the beginning and 70.8 MB in the end (delta: -18.2 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.81 ms. Allocated memory is still 104.9 MB. Free memory was 70.8 MB in the beginning and 68.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.05 ms. Allocated memory is still 104.9 MB. Free memory was 68.7 MB in the beginning and 67.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 604.62 ms. Allocated memory is still 104.9 MB. Free memory was 67.3 MB in the beginning and 77.2 MB in the end (delta: -9.9 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 10954.59 ms. Allocated memory was 104.9 MB in the beginning and 184.5 MB in the end (delta: 79.7 MB). Free memory was 77.0 MB in the beginning and 88.3 MB in the end (delta: -11.3 MB). Peak memory consumption was 68.4 MB. Max. memory is 16.1 GB. * Witness Printer took 4.90 ms. Allocated memory is still 184.5 MB. Free memory was 88.3 MB in the beginning and 87.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function length1 + -1 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * i + length2 and consists of 4 locations. One deterministic module has affine ranking function -1 * s2 + unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] and consists of 5 locations. 2 modules have a trivial ranking function, the largest among these consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.9s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 9.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 19 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 85 SDtfs, 143 SDslu, 154 SDs, 0 SdLazy, 105 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital214 mio100 ax110 hnf98 lsp82 ukn73 mio100 lsp51 div100 bol100 ite100 ukn100 eq176 hnf89 smp98 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 66ms VariablesStem: 6 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 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...