./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/cstrlen-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/cstrlen-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/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 a9da884533d6d47d95abcc742a22337ea753025b ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 15:48:35,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:48:35,758 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:48:35,767 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:48:35,767 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:48:35,768 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:48:35,769 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:48:35,770 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:48:35,772 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:48:35,772 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:48:35,773 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:48:35,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:48:35,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:48:35,775 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:48:35,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:48:35,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:48:35,776 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:48:35,777 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:48:35,779 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:48:35,780 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:48:35,781 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:48:35,782 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:48:35,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:48:35,783 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:48:35,785 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:48:35,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:48:35,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:48:35,785 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:48:35,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:48:35,786 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:48:35,786 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:48:35,787 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:48:35,787 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:48:35,787 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:48:35,788 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:48:35,788 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:48:35,789 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:48:35,789 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:48:35,789 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:48:35,789 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:48:35,790 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:48:35,790 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 15:48:35,802 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:48:35,802 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:48:35,803 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 15:48:35,803 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 15:48:35,803 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 15:48:35,803 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 15:48:35,803 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 15:48:35,803 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 15:48:35,803 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 15:48:35,804 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 15:48:35,804 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 15:48:35,804 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:48:35,804 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:48:35,804 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 15:48:35,804 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:48:35,804 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:48:35,804 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:48:35,805 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 15:48:35,805 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 15:48:35,805 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 15:48:35,805 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:48:35,805 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:48:35,805 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 15:48:35,805 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:48:35,805 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 15:48:35,805 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:48:35,806 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:48:35,806 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 15:48:35,806 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:48:35,806 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 15:48:35,806 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:48:35,806 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 15:48:35,807 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 15:48:35,807 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_45f59924-c7e4-4fa7-827d-9e34f215253b/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 -> a9da884533d6d47d95abcc742a22337ea753025b [2019-12-07 15:48:35,904 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:48:35,914 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:48:35,917 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:48:35,918 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:48:35,919 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:48:35,919 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/cstrlen-alloca-2.i [2019-12-07 15:48:35,966 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/bin/uautomizer/data/8d4ea869d/60b69ea1310d45c39eb96bc4fa12f2f7/FLAG5f14e572e [2019-12-07 15:48:36,404 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:48:36,404 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/sv-benchmarks/c/array-memsafety/cstrlen-alloca-2.i [2019-12-07 15:48:36,413 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/bin/uautomizer/data/8d4ea869d/60b69ea1310d45c39eb96bc4fa12f2f7/FLAG5f14e572e [2019-12-07 15:48:36,422 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/bin/uautomizer/data/8d4ea869d/60b69ea1310d45c39eb96bc4fa12f2f7 [2019-12-07 15:48:36,424 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:48:36,425 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:48:36,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:48:36,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:48:36,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:48:36,428 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:48:36" (1/1) ... [2019-12-07 15:48:36,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@513e5c80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:36, skipping insertion in model container [2019-12-07 15:48:36,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:48:36" (1/1) ... [2019-12-07 15:48:36,435 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:48:36,464 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:48:36,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:48:36,675 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:48:36,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:48:36,731 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:48:36,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:36 WrapperNode [2019-12-07 15:48:36,732 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:48:36,732 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:48:36,732 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:48:36,733 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:48:36,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:36" (1/1) ... [2019-12-07 15:48:36,748 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:36" (1/1) ... [2019-12-07 15:48:36,761 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:48:36,761 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:48:36,761 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:48:36,761 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:48:36,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:36" (1/1) ... [2019-12-07 15:48:36,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:36" (1/1) ... [2019-12-07 15:48:36,769 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:36" (1/1) ... [2019-12-07 15:48:36,769 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:36" (1/1) ... [2019-12-07 15:48:36,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:36" (1/1) ... [2019-12-07 15:48:36,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:36" (1/1) ... [2019-12-07 15:48:36,777 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:36" (1/1) ... [2019-12-07 15:48:36,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:48:36,778 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:48:36,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:48:36,778 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:48:36,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/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 [2019-12-07 15:48:36,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 15:48:36,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 15:48:36,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 15:48:36,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 15:48:36,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:48:36,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:48:36,960 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:48:36,961 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-07 15:48:36,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:48:36 BoogieIcfgContainer [2019-12-07 15:48:36,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:48:36,962 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 15:48:36,962 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 15:48:36,965 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 15:48:36,965 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 15:48:36,965 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 03:48:36" (1/3) ... [2019-12-07 15:48:36,966 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6364e895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 03:48:36, skipping insertion in model container [2019-12-07 15:48:36,966 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 15:48:36,966 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:48:36" (2/3) ... [2019-12-07 15:48:36,966 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6364e895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 03:48:36, skipping insertion in model container [2019-12-07 15:48:36,967 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 15:48:36,967 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:48:36" (3/3) ... [2019-12-07 15:48:36,968 INFO L371 chiAutomizerObserver]: Analyzing ICFG cstrlen-alloca-2.i [2019-12-07 15:48:36,996 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 15:48:36,996 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 15:48:36,996 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 15:48:36,996 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:48:36,996 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:48:36,996 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 15:48:36,996 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:48:36,996 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 15:48:37,005 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-12-07 15:48:37,018 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-12-07 15:48:37,018 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:48:37,018 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:48:37,023 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-12-07 15:48:37,023 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 15:48:37,023 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 15:48:37,023 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-12-07 15:48:37,024 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-12-07 15:48:37,024 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:48:37,024 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:48:37,024 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-12-07 15:48:37,024 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 15:48:37,029 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 11#L-1true havoc main_#res;havoc main_#t~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_~i~0, main_#t~ret8, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet4;havoc main_#t~nondet4; 10#L522true assume !(main_~length1~0 < 1); 13#L522-2true call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;main_~i~0 := 0; 5#L527-3true [2019-12-07 15:48:37,029 INFO L796 eck$LassoCheckResult]: Loop: 5#L527-3true assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet7, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4#L527-2true main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5#L527-3true [2019-12-07 15:48:37,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:48:37,033 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2019-12-07 15:48:37,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:48:37,039 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980274753] [2019-12-07 15:48:37,039 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:48:37,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:48:37,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:48:37,126 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:48:37,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:48:37,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1507, now seen corresponding path program 1 times [2019-12-07 15:48:37,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:48:37,127 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306902695] [2019-12-07 15:48:37,127 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:48:37,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:48:37,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:48:37,140 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:48:37,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:48:37,141 INFO L82 PathProgramCache]: Analyzing trace with hash 889568455, now seen corresponding path program 1 times [2019-12-07 15:48:37,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:48:37,142 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50491493] [2019-12-07 15:48:37,142 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:48:37,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:48:37,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:48:37,169 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:48:37,301 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 15:48:37,301 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 15:48:37,301 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 15:48:37,301 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 15:48:37,301 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 15:48:37,302 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:48:37,302 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 15:48:37,302 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 15:48:37,302 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrlen-alloca-2.i_Iteration1_Lasso [2019-12-07 15:48:37,302 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 15:48:37,302 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 15:48:37,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:48:37,322 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:48:37,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:48:37,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:48:37,329 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:48:37,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:48:37,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:48:37,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:48:37,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:48:37,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:48:37,539 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 15:48:37,542 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/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 [2019-12-07 15:48:37,546 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 [2019-12-07 15:48:37,548 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:48:37,548 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:48:37,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:48:37,549 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:48:37,549 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:48:37,550 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:48:37,550 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:48:37,552 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:48:37,559 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 [2019-12-07 15:48:37,561 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:48:37,561 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:48:37,561 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:48:37,561 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:48:37,561 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:48:37,562 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:48:37,562 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:48:37,563 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:48:37,567 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 [2019-12-07 15:48:37,568 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:48:37,568 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:48:37,568 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:48:37,568 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:48:37,568 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:48:37,568 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:48:37,569 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:48:37,570 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:48:37,573 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 [2019-12-07 15:48:37,574 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:48:37,574 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:48:37,575 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:48:37,575 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:48:37,577 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:48:37,577 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:48:37,580 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/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 [2019-12-07 15:48:37,583 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 [2019-12-07 15:48:37,585 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:48:37,585 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:48:37,585 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:48:37,585 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:48:37,587 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:48:37,587 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:48:37,591 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:48:37,595 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 [2019-12-07 15:48:37,596 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:48:37,596 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:48:37,597 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:48:37,597 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:48:37,598 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:48:37,599 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:48:37,601 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:48:37,605 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 [2019-12-07 15:48:37,606 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:48:37,606 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:48:37,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:48:37,606 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:48:37,606 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:48:37,607 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:48:37,607 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:48:37,608 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:48:37,611 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 [2019-12-07 15:48:37,613 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:48:37,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:48:37,613 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:48:37,613 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:48:37,618 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:48:37,619 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:48:37,628 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 15:48:37,647 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2019-12-07 15:48:37,648 INFO L444 ModelExtractionUtils]: 8 out of 22 variables were initially zero. Simplification set additionally 11 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:48:37,652 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 15:48:37,654 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 15:48:37,654 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 15:48:37,655 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 [] [2019-12-07 15:48:37,663 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-12-07 15:48:37,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:48:37,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:48:37,694 INFO L264 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 15:48:37,695 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:48:37,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:48:37,705 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 15:48:37,706 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:48:37,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:48:37,725 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 [2019-12-07 15:48:37,726 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 3 states. [2019-12-07 15:48:37,760 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 3 states. Result 32 states and 42 transitions. Complement of second has 7 states. [2019-12-07 15:48:37,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 15:48:37,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 15:48:37,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2019-12-07 15:48:37,763 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 4 letters. Loop has 2 letters. [2019-12-07 15:48:37,764 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:48:37,764 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 6 letters. Loop has 2 letters. [2019-12-07 15:48:37,764 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:48:37,764 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 4 letters. Loop has 4 letters. [2019-12-07 15:48:37,765 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:48:37,765 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 42 transitions. [2019-12-07 15:48:37,767 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 15:48:37,770 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 10 states and 13 transitions. [2019-12-07 15:48:37,771 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2019-12-07 15:48:37,771 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2019-12-07 15:48:37,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2019-12-07 15:48:37,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 15:48:37,772 INFO L688 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2019-12-07 15:48:37,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2019-12-07 15:48:37,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-12-07 15:48:37,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-12-07 15:48:37,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2019-12-07 15:48:37,791 INFO L711 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2019-12-07 15:48:37,791 INFO L591 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2019-12-07 15:48:37,791 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 15:48:37,791 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2019-12-07 15:48:37,792 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 15:48:37,792 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:48:37,792 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:48:37,792 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 15:48:37,792 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 15:48:37,792 INFO L794 eck$LassoCheckResult]: Stem: 107#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 103#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_~i~0, main_#t~ret8, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet4;havoc main_#t~nondet4; 104#L522 assume !(main_~length1~0 < 1); 108#L522-2 call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;main_~i~0 := 0; 109#L527-3 assume !(main_~i~0 < main_~length1~0 - 1); 112#L527-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrlen_#in~s.base, cstrlen_#in~s.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrlen_#res;havoc cstrlen_#t~post3.base, cstrlen_#t~post3.offset, cstrlen_#t~mem2, cstrlen_~s.base, cstrlen_~s.offset, cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~s.base, cstrlen_~s.offset := cstrlen_#in~s.base, cstrlen_#in~s.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_~s.base, cstrlen_~s.offset; 106#L516-3 [2019-12-07 15:48:37,792 INFO L796 eck$LassoCheckResult]: Loop: 106#L516-3 call cstrlen_#t~mem2 := read~int(cstrlen_~p~0.base, cstrlen_~p~0.offset, 1); 105#L516-1 assume !!(0 != cstrlen_#t~mem2);havoc cstrlen_#t~mem2;cstrlen_#t~post3.base, cstrlen_#t~post3.offset := cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_#t~post3.base, 1 + cstrlen_#t~post3.offset;havoc cstrlen_#t~post3.base, cstrlen_#t~post3.offset; 106#L516-3 [2019-12-07 15:48:37,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:48:37,793 INFO L82 PathProgramCache]: Analyzing trace with hash 889568397, now seen corresponding path program 1 times [2019-12-07 15:48:37,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:48:37,793 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125054753] [2019-12-07 15:48:37,793 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:48:37,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:48:37,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:48:37,812 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:48:37,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:48:37,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1862, now seen corresponding path program 1 times [2019-12-07 15:48:37,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:48:37,813 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966143736] [2019-12-07 15:48:37,813 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:48:37,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:48:37,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:48:37,821 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:48:37,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:48:37,822 INFO L82 PathProgramCache]: Analyzing trace with hash 176738514, now seen corresponding path program 1 times [2019-12-07 15:48:37,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:48:37,822 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198476938] [2019-12-07 15:48:37,822 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:48:37,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:48:37,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:48:37,921 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198476938] [2019-12-07 15:48:37,922 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:48:37,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-07 15:48:37,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610025496] [2019-12-07 15:48:37,943 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:48:37,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 15:48:37,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-12-07 15:48:37,946 INFO L87 Difference]: Start difference. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand 7 states. [2019-12-07 15:48:37,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:48:37,999 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2019-12-07 15:48:38,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 15:48:38,000 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 16 transitions. [2019-12-07 15:48:38,001 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 15:48:38,001 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 11 states and 13 transitions. [2019-12-07 15:48:38,001 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2019-12-07 15:48:38,001 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2019-12-07 15:48:38,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 13 transitions. [2019-12-07 15:48:38,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 15:48:38,002 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-12-07 15:48:38,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 13 transitions. [2019-12-07 15:48:38,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2019-12-07 15:48:38,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-12-07 15:48:38,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2019-12-07 15:48:38,003 INFO L711 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2019-12-07 15:48:38,003 INFO L591 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2019-12-07 15:48:38,003 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 15:48:38,003 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2019-12-07 15:48:38,004 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 15:48:38,004 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:48:38,004 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:48:38,004 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:48:38,004 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 15:48:38,004 INFO L794 eck$LassoCheckResult]: Stem: 145#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 143#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_~i~0, main_#t~ret8, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet4;havoc main_#t~nondet4; 144#L522 assume !(main_~length1~0 < 1); 148#L522-2 call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;main_~i~0 := 0; 149#L527-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet7, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 150#L527-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 151#L527-3 assume !(main_~i~0 < main_~length1~0 - 1); 152#L527-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrlen_#in~s.base, cstrlen_#in~s.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrlen_#res;havoc cstrlen_#t~post3.base, cstrlen_#t~post3.offset, cstrlen_#t~mem2, cstrlen_~s.base, cstrlen_~s.offset, cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~s.base, cstrlen_~s.offset := cstrlen_#in~s.base, cstrlen_#in~s.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_~s.base, cstrlen_~s.offset; 147#L516-3 [2019-12-07 15:48:38,004 INFO L796 eck$LassoCheckResult]: Loop: 147#L516-3 call cstrlen_#t~mem2 := read~int(cstrlen_~p~0.base, cstrlen_~p~0.offset, 1); 146#L516-1 assume !!(0 != cstrlen_#t~mem2);havoc cstrlen_#t~mem2;cstrlen_#t~post3.base, cstrlen_#t~post3.offset := cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_#t~post3.base, 1 + cstrlen_#t~post3.offset;havoc cstrlen_#t~post3.base, cstrlen_#t~post3.offset; 147#L516-3 [2019-12-07 15:48:38,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:48:38,005 INFO L82 PathProgramCache]: Analyzing trace with hash 176793839, now seen corresponding path program 1 times [2019-12-07 15:48:38,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:48:38,005 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174173045] [2019-12-07 15:48:38,005 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:48:38,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:48:38,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:48:38,023 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:48:38,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:48:38,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1862, now seen corresponding path program 2 times [2019-12-07 15:48:38,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:48:38,023 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303771977] [2019-12-07 15:48:38,024 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:48:38,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:48:38,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:48:38,029 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:48:38,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:48:38,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1899811660, now seen corresponding path program 1 times [2019-12-07 15:48:38,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:48:38,030 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727693380] [2019-12-07 15:48:38,030 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:48:38,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:48:38,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:48:38,052 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:48:38,217 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-12-07 15:48:38,266 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 15:48:38,267 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 15:48:38,267 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 15:48:38,267 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 15:48:38,267 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 15:48:38,267 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:48:38,267 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 15:48:38,267 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 15:48:38,267 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrlen-alloca-2.i_Iteration3_Lasso [2019-12-07 15:48:38,267 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 15:48:38,267 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 15:48:38,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:48:38,271 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:48:38,272 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:48:38,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:48:38,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:48:38,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:48:38,277 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:48:38,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:48:38,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:48:38,282 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:48:38,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:48:38,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:48:38,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:48:38,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:48:38,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:48:38,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:48:38,626 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 15:48:38,627 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:48:38,629 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 [2019-12-07 15:48:38,630 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:48:38,631 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:48:38,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:48:38,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:48:38,631 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:48:38,631 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:48:38,631 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:48:38,633 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/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) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:48:38,636 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 [2019-12-07 15:48:38,637 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:48:38,637 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:48:38,638 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:48:38,638 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:48:38,638 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:48:38,638 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:48:38,638 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:48:38,639 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:48:38,643 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 [2019-12-07 15:48:38,644 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:48:38,645 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:48:38,645 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:48:38,645 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:48:38,645 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:48:38,645 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:48:38,645 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:48:38,646 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/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) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:48:38,651 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 [2019-12-07 15:48:38,652 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:48:38,652 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:48:38,652 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:48:38,652 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:48:38,652 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:48:38,653 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:48:38,653 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:48:38,654 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:48:38,657 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:48:38,659 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:48:38,659 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:48:38,659 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:48:38,659 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:48:38,660 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:48:38,660 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:48:38,663 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:48:38,667 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 15:48:38,668 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:48:38,668 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:48:38,668 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:48:38,668 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:48:38,668 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:48:38,669 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:48:38,669 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:48:38,670 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/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 [2019-12-07 15:48:38,678 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 [2019-12-07 15:48:38,679 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:48:38,679 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:48:38,679 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:48:38,679 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:48:38,679 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:48:38,680 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:48:38,680 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:48:38,681 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/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 [2019-12-07 15:48:38,685 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 [2019-12-07 15:48:38,686 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:48:38,687 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:48:38,687 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:48:38,687 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:48:38,688 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:48:38,688 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:48:38,694 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/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 [2019-12-07 15:48:38,707 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 [2019-12-07 15:48:38,708 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:48:38,708 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:48:38,708 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:48:38,708 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:48:38,710 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:48:38,710 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:48:38,712 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/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 [2019-12-07 15:48:38,717 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 [2019-12-07 15:48:38,718 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:48:38,718 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:48:38,718 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:48:38,718 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:48:38,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:48:38,719 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:48:38,719 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:48:38,720 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/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 [2019-12-07 15:48:38,727 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 [2019-12-07 15:48:38,728 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:48:38,728 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:48:38,728 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:48:38,729 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:48:38,730 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:48:38,730 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:48:38,734 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/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 [2019-12-07 15:48:38,739 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 [2019-12-07 15:48:38,740 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:48:38,740 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:48:38,740 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:48:38,741 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:48:38,742 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:48:38,742 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:48:38,745 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/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 [2019-12-07 15:48:38,751 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 [2019-12-07 15:48:38,752 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:48:38,752 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:48:38,752 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:48:38,752 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:48:38,753 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:48:38,753 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:48:38,753 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:48:38,755 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/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 [2019-12-07 15:48:38,760 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 [2019-12-07 15:48:38,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:48:38,761 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:48:38,761 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:48:38,761 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:48:38,762 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:48:38,762 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:48:38,765 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:48:38,769 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 [2019-12-07 15:48:38,771 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:48:38,771 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:48:38,771 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:48:38,771 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:48:38,771 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:48:38,771 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:48:38,771 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:48:38,772 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:48:38,776 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 [2019-12-07 15:48:38,777 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:48:38,777 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:48:38,778 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:48:38,778 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:48:38,780 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:48:38,780 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:48:38,785 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/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 [2019-12-07 15:48:38,789 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 [2019-12-07 15:48:38,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:48:38,791 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:48:38,791 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:48:38,791 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:48:38,796 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:48:38,796 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:48:38,806 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 15:48:38,832 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2019-12-07 15:48:38,833 INFO L444 ModelExtractionUtils]: 6 out of 31 variables were initially zero. Simplification set additionally 22 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45f59924-c7e4-4fa7-827d-9e34f215253b/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 [2019-12-07 15:48:38,835 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 15:48:38,838 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 15:48:38,838 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 15:48:38,839 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrlen_~p~0.offset, v_rep(select #length ULTIMATE.start_cstrlen_~p~0.base)_1) = -1*ULTIMATE.start_cstrlen_~p~0.offset + 1*v_rep(select #length ULTIMATE.start_cstrlen_~p~0.base)_1 Supporting invariants [] [2019-12-07 15:48:38,848 INFO L297 tatePredicateManager]: 5 out of 5 supporting invariants were superfluous and have been removed [2019-12-07 15:48:38,850 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 15:48:38,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:48:38,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:48:38,868 INFO L264 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 15:48:38,868 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:48:38,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:48:38,872 INFO L264 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 15:48:38,873 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:48:38,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:48:38,880 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 [2019-12-07 15:48:38,880 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 4 Second operand 3 states. [2019-12-07 15:48:38,885 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 12 states and 15 transitions. Complement of second has 4 states. [2019-12-07 15:48:38,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 15:48:38,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 15:48:38,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2019-12-07 15:48:38,885 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2019-12-07 15:48:38,886 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:48:38,886 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2019-12-07 15:48:38,886 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:48:38,886 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 4 letters. [2019-12-07 15:48:38,886 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:48:38,886 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 15 transitions. [2019-12-07 15:48:38,887 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 15:48:38,887 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2019-12-07 15:48:38,887 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 15:48:38,887 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 15:48:38,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 15:48:38,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 15:48:38,887 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 15:48:38,887 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 15:48:38,887 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 15:48:38,887 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 15:48:38,887 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 15:48:38,887 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 15:48:38,887 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 15:48:38,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 03:48:38 BoogieIcfgContainer [2019-12-07 15:48:38,891 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 15:48:38,892 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:48:38,892 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:48:38,892 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:48:38,892 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:48:36" (3/4) ... [2019-12-07 15:48:38,894 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 15:48:38,894 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:48:38,896 INFO L168 Benchmark]: Toolchain (without parser) took 2470.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 943.6 MB in the beginning and 879.4 MB in the end (delta: 64.2 MB). Peak memory consumption was 159.6 MB. Max. memory is 11.5 GB. [2019-12-07 15:48:38,896 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:48:38,896 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 938.2 MB in the beginning and 1.1 GB in the end (delta: -141.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-12-07 15:48:38,897 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.71 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:48:38,897 INFO L168 Benchmark]: Boogie Preprocessor took 16.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 15:48:38,897 INFO L168 Benchmark]: RCFGBuilder took 183.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2019-12-07 15:48:38,898 INFO L168 Benchmark]: BuchiAutomizer took 1929.12 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 884.3 MB in the end (delta: 173.1 MB). Peak memory consumption was 173.1 MB. Max. memory is 11.5 GB. [2019-12-07 15:48:38,898 INFO L168 Benchmark]: Witness Printer took 2.78 ms. Allocated memory is still 1.1 GB. Free memory was 884.3 MB in the beginning and 879.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 11.5 GB. [2019-12-07 15:48:38,901 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 306.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 938.2 MB in the beginning and 1.1 GB in the end (delta: -141.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.71 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 183.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1929.12 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 884.3 MB in the end (delta: 173.1 MB). Peak memory consumption was 173.1 MB. Max. memory is 11.5 GB. * Witness Printer took 2.78 ms. Allocated memory is still 1.1 GB. Free memory was 884.3 MB in the beginning and 879.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 11.5 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 3 terminating modules (1 trivial, 2 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 * p + unknown-#length-unknown[p] and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 10 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 26 SDtfs, 40 SDslu, 25 SDs, 0 SdLazy, 41 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital112 mio100 ax116 hnf99 lsp80 ukn86 mio100 lsp58 div100 bol100 ite100 ukn100 eq171 hnf90 smp96 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 8ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...