./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/array07_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d0f9701f-0f91-4daf-9305-93fd9240859a/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d0f9701f-0f91-4daf-9305-93fd9240859a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d0f9701f-0f91-4daf-9305-93fd9240859a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d0f9701f-0f91-4daf-9305-93fd9240859a/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/array07_alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d0f9701f-0f91-4daf-9305-93fd9240859a/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d0f9701f-0f91-4daf-9305-93fd9240859a/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 77498d00b446eec99f943fd8f68173cd9df2461a ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:56:28,918 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:56:28,920 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:56:28,930 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:56:28,930 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:56:28,931 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:56:28,932 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:56:28,934 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:56:28,936 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:56:28,937 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:56:28,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:56:28,939 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:56:28,939 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:56:28,940 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:56:28,941 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:56:28,942 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:56:28,942 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:56:28,943 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:56:28,945 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:56:28,947 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:56:28,948 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:56:28,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:56:28,950 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:56:28,951 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:56:28,954 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:56:28,954 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:56:28,954 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:56:28,955 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:56:28,955 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:56:28,956 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:56:28,956 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:56:28,960 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:56:28,960 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:56:28,961 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:56:28,962 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:56:28,962 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:56:28,963 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:56:28,963 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:56:28,963 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:56:28,964 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:56:28,964 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:56:28,965 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d0f9701f-0f91-4daf-9305-93fd9240859a/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-25 08:56:28,988 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:56:28,988 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:56:28,990 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:56:28,990 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:56:28,990 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:56:28,990 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:56:28,991 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:56:28,991 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:56:28,991 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:56:28,991 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:56:28,992 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:56:28,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:56:28,992 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:56:28,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:56:28,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:56:28,993 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:56:28,993 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:56:28,993 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:56:28,993 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:56:28,994 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:56:28,994 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:56:28,994 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:56:28,994 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:56:28,994 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:56:28,995 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:56:28,995 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:56:28,995 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:56:28,995 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:56:28,996 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:56:28,996 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_d0f9701f-0f91-4daf-9305-93fd9240859a/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 -> 77498d00b446eec99f943fd8f68173cd9df2461a [2019-11-25 08:56:29,172 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:56:29,185 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:56:29,187 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:56:29,189 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:56:29,189 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:56:29,190 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d0f9701f-0f91-4daf-9305-93fd9240859a/bin/uautomizer/../../sv-benchmarks/c/termination-15/array07_alloca.i [2019-11-25 08:56:29,242 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d0f9701f-0f91-4daf-9305-93fd9240859a/bin/uautomizer/data/86b89798f/6cd8ae4a0a0b46309d9b33b248e8dad5/FLAG777a90376 [2019-11-25 08:56:29,718 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:56:29,718 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d0f9701f-0f91-4daf-9305-93fd9240859a/sv-benchmarks/c/termination-15/array07_alloca.i [2019-11-25 08:56:29,729 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d0f9701f-0f91-4daf-9305-93fd9240859a/bin/uautomizer/data/86b89798f/6cd8ae4a0a0b46309d9b33b248e8dad5/FLAG777a90376 [2019-11-25 08:56:29,748 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d0f9701f-0f91-4daf-9305-93fd9240859a/bin/uautomizer/data/86b89798f/6cd8ae4a0a0b46309d9b33b248e8dad5 [2019-11-25 08:56:29,751 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:56:29,752 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:56:29,755 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:56:29,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:56:29,759 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:56:29,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:56:29" (1/1) ... [2019-11-25 08:56:29,762 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37b01945 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:29, skipping insertion in model container [2019-11-25 08:56:29,762 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:56:29" (1/1) ... [2019-11-25 08:56:29,770 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:56:29,817 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:56:30,232 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:56:30,241 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:56:30,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:56:30,353 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:56:30,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:30 WrapperNode [2019-11-25 08:56:30,353 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:56:30,354 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:56:30,354 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:56:30,354 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:56:30,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:30" (1/1) ... [2019-11-25 08:56:30,374 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:30" (1/1) ... [2019-11-25 08:56:30,392 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:56:30,393 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:56:30,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:56:30,393 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:56:30,399 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:30" (1/1) ... [2019-11-25 08:56:30,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:30" (1/1) ... [2019-11-25 08:56:30,401 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:30" (1/1) ... [2019-11-25 08:56:30,401 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:30" (1/1) ... [2019-11-25 08:56:30,405 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:30" (1/1) ... [2019-11-25 08:56:30,409 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:30" (1/1) ... [2019-11-25 08:56:30,410 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:30" (1/1) ... [2019-11-25 08:56:30,411 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:56:30,412 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:56:30,412 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:56:30,412 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:56:30,413 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0f9701f-0f91-4daf-9305-93fd9240859a/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 [2019-11-25 08:56:30,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-25 08:56:30,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:56:30,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:56:30,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:56:30,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:56:30,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:56:30,660 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:56:30,660 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-25 08:56:30,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:56:30 BoogieIcfgContainer [2019-11-25 08:56:30,661 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:56:30,662 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:56:30,662 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:56:30,665 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:56:30,666 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:56:30,666 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:56:29" (1/3) ... [2019-11-25 08:56:30,667 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32e6c712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:56:30, skipping insertion in model container [2019-11-25 08:56:30,667 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:56:30,667 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:30" (2/3) ... [2019-11-25 08:56:30,668 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@32e6c712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:56:30, skipping insertion in model container [2019-11-25 08:56:30,668 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:56:30,668 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:56:30" (3/3) ... [2019-11-25 08:56:30,669 INFO L371 chiAutomizerObserver]: Analyzing ICFG array07_alloca.i [2019-11-25 08:56:30,708 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:56:30,708 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:56:30,708 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:56:30,708 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:56:30,709 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:56:30,709 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:56:30,709 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:56:30,709 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:56:30,733 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2019-11-25 08:56:30,759 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2019-11-25 08:56:30,759 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:56:30,759 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:56:30,765 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-25 08:56:30,765 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:56:30,765 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:56:30,765 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2019-11-25 08:56:30,770 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2019-11-25 08:56:30,770 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:56:30,770 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:56:30,771 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-25 08:56:30,771 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:56:30,778 INFO L794 eck$LassoCheckResult]: Stem: 8#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 6#L-1true havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~nondet208, main_#t~post207, main_#t~mem209, main_#t~post210, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 14#L367true assume !(main_~length~0 < 1); 5#L367-2true call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 11#L369true assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 15#L370-3true [2019-11-25 08:56:30,778 INFO L796 eck$LassoCheckResult]: Loop: 15#L370-3true assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet208; 13#L370-2true main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 15#L370-3true [2019-11-25 08:56:30,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:30,783 INFO L82 PathProgramCache]: Analyzing trace with hash 28695753, now seen corresponding path program 1 times [2019-11-25 08:56:30,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:30,790 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922373182] [2019-11-25 08:56:30,791 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:30,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:56:30,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:56:30,887 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:56:30,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:30,888 INFO L82 PathProgramCache]: Analyzing trace with hash 1667, now seen corresponding path program 1 times [2019-11-25 08:56:30,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:30,888 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78822546] [2019-11-25 08:56:30,888 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:30,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:56:30,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:56:30,905 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:56:30,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:30,906 INFO L82 PathProgramCache]: Analyzing trace with hash 1806815563, now seen corresponding path program 1 times [2019-11-25 08:56:30,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:30,907 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418583306] [2019-11-25 08:56:30,907 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:30,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:56:30,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:56:30,943 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:56:31,143 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 39 [2019-11-25 08:56:31,197 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:56:31,197 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:56:31,197 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:56:31,197 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:56:31,198 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:56:31,198 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:56:31,198 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:56:31,198 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:56:31,198 INFO L133 ssoRankerPreferences]: Filename of dumped script: array07_alloca.i_Iteration1_Lasso [2019-11-25 08:56:31,198 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:56:31,199 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:56:31,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:56:31,225 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:56:31,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:56:31,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:56:31,238 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:56:31,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:56:31,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:56:31,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:56:31,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:56:31,587 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:56:31,594 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0f9701f-0f91-4daf-9305-93fd9240859a/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 [2019-11-25 08:56:31,607 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 [2019-11-25 08:56:31,610 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:56:31,610 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:56:31,610 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:56:31,611 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:56:31,611 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:56:31,614 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:56:31,615 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:56:31,617 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0f9701f-0f91-4daf-9305-93fd9240859a/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 [2019-11-25 08:56:31,633 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 [2019-11-25 08:56:31,635 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:56:31,635 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:56:31,635 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:56:31,635 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:56:31,635 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:56:31,636 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:56:31,636 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:56:31,638 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0f9701f-0f91-4daf-9305-93fd9240859a/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) [2019-11-25 08:56:31,655 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:56:31,657 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:56:31,658 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:56:31,658 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:56:31,658 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:56:31,663 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:56:31,663 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 [2019-11-25 08:56:31,672 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0f9701f-0f91-4daf-9305-93fd9240859a/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 [2019-11-25 08:56:31,683 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 [2019-11-25 08:56:31,684 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:56:31,685 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:56:31,685 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:56:31,685 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:56:31,685 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:56:31,687 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:56:31,687 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:56:31,688 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0f9701f-0f91-4daf-9305-93fd9240859a/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) [2019-11-25 08:56:31,707 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 [2019-11-25 08:56:31,709 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:56:31,709 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:56:31,710 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:56:31,710 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:56:31,725 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:56:31,725 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:56:31,742 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:56:31,822 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2019-11-25 08:56:31,822 INFO L444 ModelExtractionUtils]: 6 out of 22 variables were initially zero. Simplification set additionally 13 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0f9701f-0f91-4daf-9305-93fd9240859a/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) [2019-11-25 08:56:31,829 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:56:31,835 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-25 08:56:31,835 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:56:31,836 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~length~0) = -1*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~length~0 Supporting invariants [] [2019-11-25 08:56:31,858 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-11-25 08:56:31,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:31,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:31,909 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:56:31,911 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:56:31,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:31,928 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:56:31,929 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:56:31,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:56:31,961 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 [2019-11-25 08:56:31,963 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states. Second operand 3 states. [2019-11-25 08:56:32,029 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states.. Second operand 3 states. Result 30 states and 40 transitions. Complement of second has 7 states. [2019-11-25 08:56:32,031 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 [2019-11-25 08:56:32,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-25 08:56:32,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2019-11-25 08:56:32,035 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-25 08:56:32,040 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:56:32,041 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-25 08:56:32,041 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:56:32,041 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 5 letters. Loop has 4 letters. [2019-11-25 08:56:32,041 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:56:32,043 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 40 transitions. [2019-11-25 08:56:32,048 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-25 08:56:32,053 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 10 states and 13 transitions. [2019-11-25 08:56:32,054 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2019-11-25 08:56:32,054 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2019-11-25 08:56:32,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2019-11-25 08:56:32,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:56:32,055 INFO L688 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2019-11-25 08:56:32,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2019-11-25 08:56:32,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-11-25 08:56:32,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-25 08:56:32,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2019-11-25 08:56:32,081 INFO L711 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2019-11-25 08:56:32,081 INFO L591 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2019-11-25 08:56:32,081 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:56:32,081 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2019-11-25 08:56:32,084 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-25 08:56:32,084 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:56:32,084 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:56:32,085 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:56:32,085 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-25 08:56:32,086 INFO L794 eck$LassoCheckResult]: Stem: 107#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 104#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~nondet208, main_#t~post207, main_#t~mem209, main_#t~post210, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 105#L367 assume !(main_~length~0 < 1); 108#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 109#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 110#L370-3 assume !(main_~i~0 < main_~length~0); 106#L370-4 main_~j~0 := 0; 103#L374-2 [2019-11-25 08:56:32,086 INFO L796 eck$LassoCheckResult]: Loop: 103#L374-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem209 := read~int(main_~arr~0.base, main_~arr~0.offset, 4);main_#t~post210 := main_#t~mem209;call write~int(main_#t~post210 - 1, main_~arr~0.base, main_~arr~0.offset, 4);main_~j~0 := main_~j~0 - main_#t~post210;havoc main_#t~mem209;havoc main_#t~post210; 103#L374-2 [2019-11-25 08:56:32,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:32,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1806815505, now seen corresponding path program 1 times [2019-11-25 08:56:32,087 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:32,087 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582002906] [2019-11-25 08:56:32,087 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:32,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:32,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:56:32,180 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582002906] [2019-11-25 08:56:32,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:56:32,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:56:32,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538234301] [2019-11-25 08:56:32,184 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-25 08:56:32,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:32,184 INFO L82 PathProgramCache]: Analyzing trace with hash 68, now seen corresponding path program 1 times [2019-11-25 08:56:32,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:32,185 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570492976] [2019-11-25 08:56:32,185 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:32,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:56:32,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:56:32,210 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:56:32,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:56:32,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:56:32,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:56:32,260 INFO L87 Difference]: Start difference. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand 4 states. [2019-11-25 08:56:32,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:56:32,292 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2019-11-25 08:56:32,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:56:32,293 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2019-11-25 08:56:32,294 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-25 08:56:32,294 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 13 transitions. [2019-11-25 08:56:32,294 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2019-11-25 08:56:32,295 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2019-11-25 08:56:32,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 13 transitions. [2019-11-25 08:56:32,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:56:32,295 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-11-25 08:56:32,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 13 transitions. [2019-11-25 08:56:32,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2019-11-25 08:56:32,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-25 08:56:32,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2019-11-25 08:56:32,297 INFO L711 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2019-11-25 08:56:32,297 INFO L591 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2019-11-25 08:56:32,297 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-25 08:56:32,297 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2019-11-25 08:56:32,298 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-25 08:56:32,298 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:56:32,298 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:56:32,298 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:56:32,298 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-25 08:56:32,299 INFO L794 eck$LassoCheckResult]: Stem: 135#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 132#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~nondet208, main_#t~post207, main_#t~mem209, main_#t~post210, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 133#L367 assume !(main_~length~0 < 1); 136#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 137#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 138#L370-3 assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet208; 139#L370-2 main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 140#L370-3 assume !(main_~i~0 < main_~length~0); 134#L370-4 main_~j~0 := 0; 131#L374-2 [2019-11-25 08:56:32,299 INFO L796 eck$LassoCheckResult]: Loop: 131#L374-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem209 := read~int(main_~arr~0.base, main_~arr~0.offset, 4);main_#t~post210 := main_#t~mem209;call write~int(main_#t~post210 - 1, main_~arr~0.base, main_~arr~0.offset, 4);main_~j~0 := main_~j~0 - main_#t~post210;havoc main_#t~mem209;havoc main_#t~post210; 131#L374-2 [2019-11-25 08:56:32,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:32,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1182969107, now seen corresponding path program 1 times [2019-11-25 08:56:32,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:32,300 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740858253] [2019-11-25 08:56:32,300 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:32,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:56:32,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:56:32,352 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:56:32,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:32,353 INFO L82 PathProgramCache]: Analyzing trace with hash 68, now seen corresponding path program 2 times [2019-11-25 08:56:32,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:32,354 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736161317] [2019-11-25 08:56:32,354 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:32,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:56:32,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:56:32,371 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:56:32,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:32,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1982663310, now seen corresponding path program 1 times [2019-11-25 08:56:32,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:32,373 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220762231] [2019-11-25 08:56:32,373 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:32,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:56:32,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:56:32,402 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:56:32,606 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 58 [2019-11-25 08:56:32,676 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:56:32,677 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:56:32,677 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:56:32,677 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:56:32,677 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:56:32,677 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:56:32,677 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:56:32,677 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:56:32,678 INFO L133 ssoRankerPreferences]: Filename of dumped script: array07_alloca.i_Iteration3_Lasso [2019-11-25 08:56:32,678 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:56:32,678 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:56:32,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:56:32,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:56:32,819 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:56:32,822 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:56:32,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:56:32,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:56:32,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:56:32,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:56:32,860 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:56:33,128 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:56:33,129 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0f9701f-0f91-4daf-9305-93fd9240859a/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 [2019-11-25 08:56:33,143 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:56:33,145 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:56:33,145 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:56:33,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:56:33,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:56:33,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:56:33,146 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:56:33,146 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:56:33,148 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0f9701f-0f91-4daf-9305-93fd9240859a/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 [2019-11-25 08:56:33,162 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 [2019-11-25 08:56:33,164 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:56:33,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:56:33,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:56:33,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:56:33,167 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:56:33,167 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:56:33,174 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0f9701f-0f91-4daf-9305-93fd9240859a/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 [2019-11-25 08:56:33,183 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 [2019-11-25 08:56:33,185 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:56:33,185 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:56:33,185 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:56:33,185 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:56:33,199 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:56:33,199 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:56:33,214 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0f9701f-0f91-4daf-9305-93fd9240859a/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) [2019-11-25 08:56:33,236 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 [2019-11-25 08:56:33,237 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:56:33,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:56:33,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:56:33,238 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:56:33,243 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:56:33,243 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:56:33,251 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0f9701f-0f91-4daf-9305-93fd9240859a/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 [2019-11-25 08:56:33,270 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 [2019-11-25 08:56:33,272 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:56:33,272 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:56:33,272 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:56:33,272 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:56:33,277 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:56:33,277 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:56:33,286 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0f9701f-0f91-4daf-9305-93fd9240859a/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 [2019-11-25 08:56:33,298 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 [2019-11-25 08:56:33,299 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:56:33,300 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:56:33,300 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:56:33,300 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:56:33,300 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:56:33,300 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:56:33,301 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:56:33,302 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0f9701f-0f91-4daf-9305-93fd9240859a/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 [2019-11-25 08:56:33,319 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:56:33,321 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:56:33,321 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:56:33,321 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:56:33,321 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:56:33,324 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:56:33,324 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:56:33,327 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0f9701f-0f91-4daf-9305-93fd9240859a/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 [2019-11-25 08:56:33,334 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 [2019-11-25 08:56:33,336 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:56:33,336 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:56:33,336 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:56:33,336 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:56:33,336 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:56:33,337 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:56:33,337 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:56:33,342 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0f9701f-0f91-4daf-9305-93fd9240859a/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) [2019-11-25 08:56:33,356 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 [2019-11-25 08:56:33,357 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:56:33,357 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:56:33,358 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:56:33,358 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:56:33,358 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:56:33,359 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:56:33,359 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:56:33,360 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0f9701f-0f91-4daf-9305-93fd9240859a/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 [2019-11-25 08:56:33,375 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 [2019-11-25 08:56:33,377 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:56:33,377 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:56:33,377 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:56:33,377 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:56:33,377 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:56:33,379 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:56:33,379 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:56:33,380 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0f9701f-0f91-4daf-9305-93fd9240859a/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) [2019-11-25 08:56:33,390 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:56:33,392 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:56:33,393 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:56:33,393 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:56:33,393 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:56:33,395 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:56:33,396 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:56:33,400 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0f9701f-0f91-4daf-9305-93fd9240859a/bin/uautomizer/z3 Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:56:33,420 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 [2019-11-25 08:56:33,422 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:56:33,422 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:56:33,422 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:56:33,422 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:56:33,422 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:56:33,423 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:56:33,423 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:56:33,425 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-25 08:56:33,427 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0f9701f-0f91-4daf-9305-93fd9240859a/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 [2019-11-25 08:56:33,439 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 [2019-11-25 08:56:33,441 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:56:33,441 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:56:33,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:56:33,441 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:56:33,442 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-25 08:56:33,442 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2019-11-25 08:56:33,442 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:56:33,446 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0f9701f-0f91-4daf-9305-93fd9240859a/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 [2019-11-25 08:56:33,455 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 [2019-11-25 08:56:33,457 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:56:33,457 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:56:33,457 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:56:33,457 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-25 08:56:33,465 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-11-25 08:56:33,465 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-11-25 08:56:33,474 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0f9701f-0f91-4daf-9305-93fd9240859a/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) [2019-11-25 08:56:33,483 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 [2019-11-25 08:56:33,486 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:56:33,486 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:56:33,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:56:33,486 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-25 08:56:33,499 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-11-25 08:56:33,499 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:56:33,522 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:56:33,591 INFO L443 ModelExtractionUtils]: Simplification made 20 calls to the SMT solver. [2019-11-25 08:56:33,591 INFO L444 ModelExtractionUtils]: 18 out of 46 variables were initially zero. Simplification set additionally 23 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d0f9701f-0f91-4daf-9305-93fd9240859a/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) [2019-11-25 08:56:33,599 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:56:33,602 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 3. [2019-11-25 08:56:33,603 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:56:33,603 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 8*v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0.base) ULTIMATE.start_main_~arr~0.offset)_1 + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc206.base)_2 f1 = -8*ULTIMATE.start_main_~j~0 + 8*ULTIMATE.start_main_~length~0 Supporting invariants [] [2019-11-25 08:56:33,613 INFO L297 tatePredicateManager]: 2 out of 3 supporting invariants were superfluous and have been removed [2019-11-25 08:56:33,617 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-25 08:56:33,618 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-25 08:56:33,619 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-25 08:56:33,619 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-25 08:56:33,619 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-11-25 08:56:33,619 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-25 08:56:33,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:33,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:33,671 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:56:33,672 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:56:33,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:33,680 WARN L253 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-25 08:56:33,680 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:56:33,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:56:33,681 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2019-11-25 08:56:33,681 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 4 Second operand 3 states. [2019-11-25 08:56:33,736 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 11 states and 13 transitions. Complement of second has 3 states. [2019-11-25 08:56:33,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2019-11-25 08:56:33,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-25 08:56:33,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2019-11-25 08:56:33,737 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 9 letters. Loop has 1 letters. [2019-11-25 08:56:33,738 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:56:33,738 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 10 letters. Loop has 1 letters. [2019-11-25 08:56:33,738 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:56:33,738 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 9 letters. Loop has 2 letters. [2019-11-25 08:56:33,738 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:56:33,738 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2019-11-25 08:56:33,739 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:56:33,739 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2019-11-25 08:56:33,739 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-25 08:56:33,739 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-25 08:56:33,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-25 08:56:33,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:56:33,740 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:56:33,740 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:56:33,740 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:56:33,740 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-25 08:56:33,740 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:56:33,740 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:56:33,740 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-25 08:56:33,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:56:33 BoogieIcfgContainer [2019-11-25 08:56:33,746 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:56:33,746 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:56:33,746 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:56:33,746 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:56:33,747 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:56:30" (3/4) ... [2019-11-25 08:56:33,750 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:56:33,750 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:56:33,752 INFO L168 Benchmark]: Toolchain (without parser) took 3999.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 946.1 MB in the beginning and 995.7 MB in the end (delta: -49.6 MB). Peak memory consumption was 96.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:33,752 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:56:33,753 INFO L168 Benchmark]: CACSL2BoogieTranslator took 598.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -182.4 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:33,753 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.49 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:56:33,754 INFO L168 Benchmark]: Boogie Preprocessor took 19.05 ms. Allocated memory is still 1.2 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. [2019-11-25 08:56:33,754 INFO L168 Benchmark]: RCFGBuilder took 249.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:33,755 INFO L168 Benchmark]: BuchiAutomizer took 3083.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 995.7 MB in the end (delta: 105.1 MB). Peak memory consumption was 105.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:33,755 INFO L168 Benchmark]: Witness Printer took 4.23 ms. Allocated memory is still 1.2 GB. Free memory is still 995.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:56:33,758 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 598.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -182.4 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 38.49 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.05 ms. Allocated memory is still 1.2 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 249.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3083.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 995.7 MB in the end (delta: 105.1 MB). Peak memory consumption was 105.1 MB. Max. memory is 11.5 GB. * Witness Printer took 4.23 ms. Allocated memory is still 1.2 GB. Free memory is still 995.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - 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 -1 * i + length and consists of 5 locations. One deterministic module has 2-nested ranking function (if 8 * unknown-#memory_int-unknown[arr][arr] + unknown-#length-unknown[__builtin_alloca(length*sizeof(int))] > 0 then 1 else 0), (if 8 * unknown-#memory_int-unknown[arr][arr] + unknown-#length-unknown[__builtin_alloca(length*sizeof(int))] > 0 then 8 * unknown-#memory_int-unknown[arr][arr] + unknown-#length-unknown[__builtin_alloca(length*sizeof(int))] else -8 * j + 8 * length) and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.0s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. 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: 27 SDtfs, 38 SDslu, 13 SDs, 0 SdLazy, 29 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital111 mio100 ax100 hnf99 lsp94 ukn79 mio100 lsp66 div100 bol100 ite100 ukn100 eq169 hnf89 smp95 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 25ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 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...