./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-recursive-malloc/rec_strcopy_malloc.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ad70b829-7848-479a-811a-117c33445625/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ad70b829-7848-479a-811a-117c33445625/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ad70b829-7848-479a-811a-117c33445625/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ad70b829-7848-479a-811a-117c33445625/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/rec_strcopy_malloc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_ad70b829-7848-479a-811a-117c33445625/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ad70b829-7848-479a-811a-117c33445625/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash cd11d9219c053905d9335ee000e770be1f4c60e6 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:29:52,795 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:29:52,799 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:29:52,885 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:29:52,886 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:29:52,894 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:29:52,897 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:29:52,902 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:29:52,905 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:29:52,923 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:29:52,925 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:29:52,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:29:52,927 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:29:52,935 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:29:52,936 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:29:52,938 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:29:52,939 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:29:52,940 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:29:52,943 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:29:52,946 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:29:52,948 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:29:52,951 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:29:52,954 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:29:52,956 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:29:52,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:29:52,968 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:29:52,968 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:29:52,971 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:29:52,971 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:29:52,973 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:29:52,973 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:29:52,975 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:29:52,977 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:29:52,979 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:29:52,980 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:29:52,981 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:29:52,982 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:29:52,982 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:29:52,982 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:29:52,984 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:29:52,985 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:29:52,988 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ad70b829-7848-479a-811a-117c33445625/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-30 00:29:53,039 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:29:53,040 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:29:53,042 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:29:53,042 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:29:53,043 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:29:53,043 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:29:53,043 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:29:53,044 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:29:53,044 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:29:53,044 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:29:53,046 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:29:53,046 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:29:53,046 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:29:53,047 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:29:53,047 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:29:53,047 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:29:53,047 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:29:53,048 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:29:53,048 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:29:53,048 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:29:53,048 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:29:53,049 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:29:53,049 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:29:53,049 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:29:53,050 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:29:53,050 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:29:53,050 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:29:53,051 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:29:53,051 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:29:53,054 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:29:53,054 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_ad70b829-7848-479a-811a-117c33445625/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ad70b829-7848-479a-811a-117c33445625/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cd11d9219c053905d9335ee000e770be1f4c60e6 [2020-11-30 00:29:53,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:29:53,483 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:29:53,487 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:29:53,489 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:29:53,490 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:29:53,491 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ad70b829-7848-479a-811a-117c33445625/bin/uautomizer/../../sv-benchmarks/c/termination-recursive-malloc/rec_strcopy_malloc.i [2020-11-30 00:29:53,581 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ad70b829-7848-479a-811a-117c33445625/bin/uautomizer/data/1ccab099f/0c2ebbf99a684cbf96bcbab312755556/FLAG47d6031f8 [2020-11-30 00:29:54,343 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:29:54,344 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ad70b829-7848-479a-811a-117c33445625/sv-benchmarks/c/termination-recursive-malloc/rec_strcopy_malloc.i [2020-11-30 00:29:54,358 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ad70b829-7848-479a-811a-117c33445625/bin/uautomizer/data/1ccab099f/0c2ebbf99a684cbf96bcbab312755556/FLAG47d6031f8 [2020-11-30 00:29:54,667 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ad70b829-7848-479a-811a-117c33445625/bin/uautomizer/data/1ccab099f/0c2ebbf99a684cbf96bcbab312755556 [2020-11-30 00:29:54,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:29:54,671 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:29:54,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:29:54,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:29:54,695 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:29:54,696 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:29:54" (1/1) ... [2020-11-30 00:29:54,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c63c89f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:54, skipping insertion in model container [2020-11-30 00:29:54,698 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:29:54" (1/1) ... [2020-11-30 00:29:54,707 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:29:54,724 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:29:54,933 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:29:54,951 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:29:54,976 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:29:54,996 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:29:54,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:54 WrapperNode [2020-11-30 00:29:54,998 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:29:54,999 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:29:55,000 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:29:55,000 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:29:55,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:54" (1/1) ... [2020-11-30 00:29:55,020 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:54" (1/1) ... [2020-11-30 00:29:55,039 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:29:55,040 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:29:55,040 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:29:55,040 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:29:55,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:54" (1/1) ... [2020-11-30 00:29:55,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:54" (1/1) ... [2020-11-30 00:29:55,071 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:54" (1/1) ... [2020-11-30 00:29:55,072 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:54" (1/1) ... [2020-11-30 00:29:55,078 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:54" (1/1) ... [2020-11-30 00:29:55,081 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:54" (1/1) ... [2020-11-30 00:29:55,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:54" (1/1) ... [2020-11-30 00:29:55,088 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:29:55,091 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:29:55,091 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:29:55,091 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:29:55,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad70b829-7848-479a-811a-117c33445625/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:29:55,185 INFO L130 BoogieDeclarations]: Found specification of procedure rec_strcopy_helper [2020-11-30 00:29:55,186 INFO L138 BoogieDeclarations]: Found implementation of procedure rec_strcopy_helper [2020-11-30 00:29:55,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 00:29:55,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-30 00:29:55,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:29:55,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:29:55,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 00:29:55,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:29:55,522 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:29:55,523 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-30 00:29:55,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:29:55 BoogieIcfgContainer [2020-11-30 00:29:55,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:29:55,526 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:29:55,526 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:29:55,530 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:29:55,531 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:29:55,532 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:29:54" (1/3) ... [2020-11-30 00:29:55,533 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61900141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:29:55, skipping insertion in model container [2020-11-30 00:29:55,534 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:29:55,534 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:54" (2/3) ... [2020-11-30 00:29:55,534 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61900141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:29:55, skipping insertion in model container [2020-11-30 00:29:55,535 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:29:55,535 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:29:55" (3/3) ... [2020-11-30 00:29:55,536 INFO L373 chiAutomizerObserver]: Analyzing ICFG rec_strcopy_malloc.i [2020-11-30 00:29:55,635 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:29:55,635 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:29:55,635 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:29:55,636 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:29:55,636 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:29:55,636 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:29:55,636 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:29:55,637 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:29:55,654 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-11-30 00:29:55,685 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-30 00:29:55,686 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:29:55,686 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:29:55,699 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:29:55,699 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-30 00:29:55,699 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:29:55,700 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-11-30 00:29:55,704 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-30 00:29:55,704 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:29:55,704 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:29:55,705 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:29:55,705 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-30 00:29:55,716 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9#L-1true havoc main_#res;havoc main_#t~nondet5, main_#t~ret6.base, main_#t~ret6.offset, main_#t~ret7.base, main_#t~ret7.offset, main_~length~0, main_~original~0.base, main_~original~0.offset, main_~res~0.base, main_~res~0.offset;main_~length~0 := main_#t~nondet5;havoc main_#t~nondet5; 17#L35true assume main_~length~0 < 1;main_~length~0 := 1; 12#L35-2true build_nondet_String_#in~length := main_~length~0;havoc build_nondet_String_#res.base, build_nondet_String_#res.offset;havoc build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset, build_nondet_String_~length, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset;build_nondet_String_~length := build_nondet_String_#in~length;call build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length);build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset := build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset;call write~int(0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset + (build_nondet_String_~length - 1), 1);build_nondet_String_#res.base, build_nondet_String_#res.offset := build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset; 15#L12true main_#t~ret6.base, main_#t~ret6.offset := build_nondet_String_#res.base, build_nondet_String_#res.offset;main_~original~0.base, main_~original~0.offset := main_#t~ret6.base, main_#t~ret6.offset;havoc main_#t~ret6.base, main_#t~ret6.offset;rec_strcopy_#in~source.base, rec_strcopy_#in~source.offset, rec_strcopy_#in~length := main_~original~0.base, main_~original~0.offset, main_~length~0;havoc rec_strcopy_#res.base, rec_strcopy_#res.offset;havoc rec_strcopy_#t~malloc4.base, rec_strcopy_#t~malloc4.offset, rec_strcopy_~source.base, rec_strcopy_~source.offset, rec_strcopy_~length, rec_strcopy_~copyAlloc~0.base, rec_strcopy_~copyAlloc~0.offset;rec_strcopy_~source.base, rec_strcopy_~source.offset := rec_strcopy_#in~source.base, rec_strcopy_#in~source.offset;rec_strcopy_~length := rec_strcopy_#in~length;call rec_strcopy_#t~malloc4.base, rec_strcopy_#t~malloc4.offset := #Ultimate.allocOnHeap(rec_strcopy_~length);rec_strcopy_~copyAlloc~0.base, rec_strcopy_~copyAlloc~0.offset := rec_strcopy_#t~malloc4.base, rec_strcopy_#t~malloc4.offset; 4#L28true call rec_strcopy_helper(rec_strcopy_~source.base, rec_strcopy_~source.offset, rec_strcopy_~copyAlloc~0.base, rec_strcopy_~copyAlloc~0.offset);< 11#rec_strcopy_helperENTRYtrue [2020-11-30 00:29:55,717 INFO L796 eck$LassoCheckResult]: Loop: 11#rec_strcopy_helperENTRYtrue ~source.base, ~source.offset := #in~source.base, #in~source.offset;~dest.base, ~dest.offset := #in~dest.base, #in~dest.offset;call #t~mem2 := read~int(~source.base, ~source.offset, 1);call write~int(#t~mem2, ~dest.base, ~dest.offset, 1);havoc #t~mem2;call #t~mem3 := read~int(~source.base, ~source.offset, 1); 7#L21true assume 0 != #t~mem3;havoc #t~mem3; 14#L22true call rec_strcopy_helper(~source.base, 1 + ~source.offset, ~dest.base, 1 + ~dest.offset);< 11#rec_strcopy_helperENTRYtrue [2020-11-30 00:29:55,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:55,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1155759793, now seen corresponding path program 1 times [2020-11-30 00:29:55,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:55,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367136602] [2020-11-30 00:29:55,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:55,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:29:55,953 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:29:56,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:29:56,025 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:29:56,057 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:29:56,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:56,059 INFO L82 PathProgramCache]: Analyzing trace with hash 29912, now seen corresponding path program 1 times [2020-11-30 00:29:56,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:56,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055158429] [2020-11-30 00:29:56,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:56,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:29:56,080 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:29:56,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:29:56,093 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:29:56,097 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:29:56,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:56,100 INFO L82 PathProgramCache]: Analyzing trace with hash -1512818648, now seen corresponding path program 1 times [2020-11-30 00:29:56,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:56,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111168587] [2020-11-30 00:29:56,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:56,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:56,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:56,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111168587] [2020-11-30 00:29:56,456 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:56,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-30 00:29:56,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251679810] [2020-11-30 00:29:56,644 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2020-11-30 00:29:56,798 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-11-30 00:29:56,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:56,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 00:29:56,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:29:57,000 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 7 states. [2020-11-30 00:29:57,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:57,234 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2020-11-30 00:29:57,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 00:29:57,240 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 29 transitions. [2020-11-30 00:29:57,244 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-30 00:29:57,250 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 9 states and 9 transitions. [2020-11-30 00:29:57,252 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-11-30 00:29:57,252 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-11-30 00:29:57,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 9 transitions. [2020-11-30 00:29:57,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:29:57,254 INFO L691 BuchiCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-11-30 00:29:57,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 9 transitions. [2020-11-30 00:29:57,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-11-30 00:29:57,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-11-30 00:29:57,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-11-30 00:29:57,292 INFO L714 BuchiCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-11-30 00:29:57,292 INFO L594 BuchiCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-11-30 00:29:57,292 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:29:57,292 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 9 transitions. [2020-11-30 00:29:57,294 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-30 00:29:57,294 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:29:57,294 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:29:57,295 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:29:57,295 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-30 00:29:57,295 INFO L794 eck$LassoCheckResult]: Stem: 69#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 67#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~ret6.base, main_#t~ret6.offset, main_#t~ret7.base, main_#t~ret7.offset, main_~length~0, main_~original~0.base, main_~original~0.offset, main_~res~0.base, main_~res~0.offset;main_~length~0 := main_#t~nondet5;havoc main_#t~nondet5; 68#L35 assume !(main_~length~0 < 1); 74#L35-2 build_nondet_String_#in~length := main_~length~0;havoc build_nondet_String_#res.base, build_nondet_String_#res.offset;havoc build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset, build_nondet_String_~length, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset;build_nondet_String_~length := build_nondet_String_#in~length;call build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length);build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset := build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset;call write~int(0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset + (build_nondet_String_~length - 1), 1);build_nondet_String_#res.base, build_nondet_String_#res.offset := build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset; 75#L12 main_#t~ret6.base, main_#t~ret6.offset := build_nondet_String_#res.base, build_nondet_String_#res.offset;main_~original~0.base, main_~original~0.offset := main_#t~ret6.base, main_#t~ret6.offset;havoc main_#t~ret6.base, main_#t~ret6.offset;rec_strcopy_#in~source.base, rec_strcopy_#in~source.offset, rec_strcopy_#in~length := main_~original~0.base, main_~original~0.offset, main_~length~0;havoc rec_strcopy_#res.base, rec_strcopy_#res.offset;havoc rec_strcopy_#t~malloc4.base, rec_strcopy_#t~malloc4.offset, rec_strcopy_~source.base, rec_strcopy_~source.offset, rec_strcopy_~length, rec_strcopy_~copyAlloc~0.base, rec_strcopy_~copyAlloc~0.offset;rec_strcopy_~source.base, rec_strcopy_~source.offset := rec_strcopy_#in~source.base, rec_strcopy_#in~source.offset;rec_strcopy_~length := rec_strcopy_#in~length;call rec_strcopy_#t~malloc4.base, rec_strcopy_#t~malloc4.offset := #Ultimate.allocOnHeap(rec_strcopy_~length);rec_strcopy_~copyAlloc~0.base, rec_strcopy_~copyAlloc~0.offset := rec_strcopy_#t~malloc4.base, rec_strcopy_#t~malloc4.offset; 72#L28 call rec_strcopy_helper(rec_strcopy_~source.base, rec_strcopy_~source.offset, rec_strcopy_~copyAlloc~0.base, rec_strcopy_~copyAlloc~0.offset);< 70#rec_strcopy_helperENTRY [2020-11-30 00:29:57,296 INFO L796 eck$LassoCheckResult]: Loop: 70#rec_strcopy_helperENTRY ~source.base, ~source.offset := #in~source.base, #in~source.offset;~dest.base, ~dest.offset := #in~dest.base, #in~dest.offset;call #t~mem2 := read~int(~source.base, ~source.offset, 1);call write~int(#t~mem2, ~dest.base, ~dest.offset, 1);havoc #t~mem2;call #t~mem3 := read~int(~source.base, ~source.offset, 1); 73#L21 assume 0 != #t~mem3;havoc #t~mem3; 71#L22 call rec_strcopy_helper(~source.base, 1 + ~source.offset, ~dest.base, 1 + ~dest.offset);< 70#rec_strcopy_helperENTRY [2020-11-30 00:29:57,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:57,297 INFO L82 PathProgramCache]: Analyzing trace with hash 1155819375, now seen corresponding path program 1 times [2020-11-30 00:29:57,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:57,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946878642] [2020-11-30 00:29:57,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:57,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:29:57,333 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:29:57,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:29:57,390 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:29:57,396 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:29:57,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:57,397 INFO L82 PathProgramCache]: Analyzing trace with hash 29912, now seen corresponding path program 2 times [2020-11-30 00:29:57,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:57,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349459670] [2020-11-30 00:29:57,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:57,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:29:57,429 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:29:57,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:29:57,437 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:29:57,441 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:29:57,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:57,442 INFO L82 PathProgramCache]: Analyzing trace with hash 262188714, now seen corresponding path program 1 times [2020-11-30 00:29:57,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:57,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120021447] [2020-11-30 00:29:57,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:57,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:29:57,490 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:29:57,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:29:57,513 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:29:57,522 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:29:58,491 WARN L193 SmtUtils]: Spent 606.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 97 [2020-11-30 00:29:58,718 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-11-30 00:29:58,941 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-11-30 00:29:59,092 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:29:59,093 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:29:59,094 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:29:59,094 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:29:59,094 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:29:59,094 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:29:59,095 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:29:59,095 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:29:59,095 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_strcopy_malloc.i_Iteration2_Lasso [2020-11-30 00:29:59,095 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:29:59,096 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:29:59,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,301 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 38 [2020-11-30 00:29:59,440 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-11-30 00:29:59,441 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,445 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,510 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,520 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,540 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,550 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,582 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,606 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,615 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,619 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,642 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:29:59,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:30:00,355 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:30:00,361 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad70b829-7848-479a-811a-117c33445625/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:30:00,398 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:30:00,400 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:30:00,401 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2020-11-30 00:30:00,401 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:30:00,401 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:30:00,421 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-11-30 00:30:00,421 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:30:00,447 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad70b829-7848-479a-811a-117c33445625/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:30:00,519 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:30:00,522 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:30:00,522 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:30:00,522 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:30:00,522 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:30:00,536 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:30:00,536 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:30:00,547 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad70b829-7848-479a-811a-117c33445625/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:30:00,603 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:30:00,608 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:30:00,608 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:30:00,609 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:30:00,609 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:30:00,627 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:30:00,627 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:30:00,646 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:30:00,917 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2020-11-30 00:30:00,917 INFO L444 ModelExtractionUtils]: 5 out of 16 variables were initially zero. Simplification set additionally 8 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad70b829-7848-479a-811a-117c33445625/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:30:00,927 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:30:00,931 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-30 00:30:00,932 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:30:00,932 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length rec_strcopy_helper_#in~dest.base)_1, rec_strcopy_helper_#in~dest.offset) = 1*v_rep(select #length rec_strcopy_helper_#in~dest.base)_1 - 1*rec_strcopy_helper_#in~dest.offset Supporting invariants [] [2020-11-30 00:30:00,990 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2020-11-30 00:30:00,999 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 00:30:01,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:30:01,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:30:01,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:30:01,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:30:01,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:30:01,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-30 00:30:01,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:30:01,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:30:01,170 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-30 00:30:01,171 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 9 transitions. cyclomatic complexity: 1 Second operand 3 states. [2020-11-30 00:30:01,239 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 9 transitions. cyclomatic complexity: 1. Second operand 3 states. Result 16 states and 16 transitions. Complement of second has 7 states. [2020-11-30 00:30:01,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-30 00:30:01,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-30 00:30:01,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-11-30 00:30:01,244 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 3 letters. [2020-11-30 00:30:01,245 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:30:01,246 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 3 letters. [2020-11-30 00:30:01,246 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:30:01,246 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 6 letters. [2020-11-30 00:30:01,246 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:30:01,247 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 16 transitions. [2020-11-30 00:30:01,249 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:30:01,249 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2020-11-30 00:30:01,249 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-30 00:30:01,249 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-30 00:30:01,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-30 00:30:01,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:30:01,250 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:30:01,250 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:30:01,250 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:30:01,251 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:30:01,251 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:30:01,251 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:30:01,251 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-30 00:30:01,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:30:01 BoogieIcfgContainer [2020-11-30 00:30:01,258 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:30:01,259 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:30:01,259 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:30:01,260 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:30:01,260 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:29:55" (3/4) ... [2020-11-30 00:30:01,264 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 00:30:01,264 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:30:01,266 INFO L168 Benchmark]: Toolchain (without parser) took 6594.11 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 96.3 MB in the beginning and 97.7 MB in the end (delta: -1.4 MB). Peak memory consumption was 24.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:30:01,267 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 86.0 MB. Free memory was 43.0 MB in the beginning and 42.9 MB in the end (delta: 75.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:30:01,268 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.95 ms. Allocated memory is still 125.8 MB. Free memory was 96.0 MB in the beginning and 103.7 MB in the end (delta: -7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:30:01,269 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.69 ms. Allocated memory is still 125.8 MB. Free memory was 103.7 MB in the beginning and 102.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:30:01,270 INFO L168 Benchmark]: Boogie Preprocessor took 50.02 ms. Allocated memory is still 125.8 MB. Free memory was 102.2 MB in the beginning and 101.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:30:01,271 INFO L168 Benchmark]: RCFGBuilder took 434.44 ms. Allocated memory is still 125.8 MB. Free memory was 101.1 MB in the beginning and 88.5 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:30:01,272 INFO L168 Benchmark]: BuchiAutomizer took 5732.25 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 88.0 MB in the beginning and 97.7 MB in the end (delta: -9.7 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:30:01,272 INFO L168 Benchmark]: Witness Printer took 5.07 ms. Allocated memory is still 151.0 MB. Free memory is still 97.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:30:01,278 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 86.0 MB. Free memory was 43.0 MB in the beginning and 42.9 MB in the end (delta: 75.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 307.95 ms. Allocated memory is still 125.8 MB. Free memory was 96.0 MB in the beginning and 103.7 MB in the end (delta: -7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.69 ms. Allocated memory is still 125.8 MB. Free memory was 103.7 MB in the beginning and 102.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.02 ms. Allocated memory is still 125.8 MB. Free memory was 102.2 MB in the beginning and 101.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 434.44 ms. Allocated memory is still 125.8 MB. Free memory was 101.1 MB in the beginning and 88.5 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 5732.25 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 88.0 MB in the beginning and 97.7 MB in the end (delta: -9.7 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. * Witness Printer took 5.07 ms. Allocated memory is still 151.0 MB. Free memory is still 97.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[dest] + -1 * dest 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 5.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 4.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 9 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 31 SDtfs, 18 SDslu, 84 SDs, 0 SdLazy, 49 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital165 mio100 ax100 hnf99 lsp96 ukn71 mio100 lsp46 div100 bol100 ite100 ukn100 eq190 hnf75 smp100 dnf113 smp88 tf100 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 84ms VariablesStem: 3 VariablesLoop: 4 DisjunctsStem: 4 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 12 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...