./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-linkedlists/ll_append-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5bac56a4-100a-4071-a06c-a3851d908d96/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5bac56a4-100a-4071-a06c-a3851d908d96/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5bac56a4-100a-4071-a06c-a3851d908d96/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5bac56a4-100a-4071-a06c-a3851d908d96/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-linkedlists/ll_append-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/working_dir_5bac56a4-100a-4071-a06c-a3851d908d96/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5bac56a4-100a-4071-a06c-a3851d908d96/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 18edad3aefc49839189b8c997aba3dd32264f7ca ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:56:01,533 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:56:01,536 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:56:01,547 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:56:01,548 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:56:01,549 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:56:01,549 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:56:01,550 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:56:01,555 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:56:01,557 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:56:01,559 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:56:01,560 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:56:01,560 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:56:01,561 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:56:01,562 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:56:01,563 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:56:01,572 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:56:01,573 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:56:01,574 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:56:01,575 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:56:01,576 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:56:01,577 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:56:01,578 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:56:01,578 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:56:01,585 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:56:01,586 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:56:01,586 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:56:01,586 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:56:01,587 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:56:01,587 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:56:01,588 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:56:01,588 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:56:01,589 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:56:01,589 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:56:01,590 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:56:01,590 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:56:01,591 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:56:01,591 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:56:01,591 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:56:01,594 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:56:01,597 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:56:01,598 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5bac56a4-100a-4071-a06c-a3851d908d96/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-10-22 08:56:01,615 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:56:01,618 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:56:01,619 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:56:01,619 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:56:01,619 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:56:01,619 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 08:56:01,619 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 08:56:01,620 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 08:56:01,620 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 08:56:01,620 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 08:56:01,620 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 08:56:01,620 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:56:01,621 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:56:01,621 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:56:01,621 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:56:01,621 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 08:56:01,621 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 08:56:01,621 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 08:56:01,622 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:56:01,622 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 08:56:01,622 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:56:01,622 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 08:56:01,622 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:56:01,622 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:56:01,623 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 08:56:01,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:56:01,623 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:56:01,623 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 08:56:01,624 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 08:56:01,624 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/working_dir_5bac56a4-100a-4071-a06c-a3851d908d96/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 -> 18edad3aefc49839189b8c997aba3dd32264f7ca [2019-10-22 08:56:01,647 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:56:01,656 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:56:01,659 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:56:01,661 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:56:01,661 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:56:01,661 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5bac56a4-100a-4071-a06c-a3851d908d96/bin/uautomizer/../../sv-benchmarks/c/termination-memory-linkedlists/ll_append-alloca-2.i [2019-10-22 08:56:01,709 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5bac56a4-100a-4071-a06c-a3851d908d96/bin/uautomizer/data/70853e8ea/f92758eb4b95402ea0fb7e8f42e7ca5c/FLAG366caea99 [2019-10-22 08:56:02,133 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:56:02,133 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5bac56a4-100a-4071-a06c-a3851d908d96/sv-benchmarks/c/termination-memory-linkedlists/ll_append-alloca-2.i [2019-10-22 08:56:02,143 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5bac56a4-100a-4071-a06c-a3851d908d96/bin/uautomizer/data/70853e8ea/f92758eb4b95402ea0fb7e8f42e7ca5c/FLAG366caea99 [2019-10-22 08:56:02,512 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5bac56a4-100a-4071-a06c-a3851d908d96/bin/uautomizer/data/70853e8ea/f92758eb4b95402ea0fb7e8f42e7ca5c [2019-10-22 08:56:02,514 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:56:02,515 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:56:02,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:02,516 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:56:02,519 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:56:02,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:02" (1/1) ... [2019-10-22 08:56:02,522 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e924990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:02, skipping insertion in model container [2019-10-22 08:56:02,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:02" (1/1) ... [2019-10-22 08:56:02,529 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:56:02,567 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:56:02,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:56:02,908 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:56:02,954 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:56:02,990 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:56:02,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:02 WrapperNode [2019-10-22 08:56:02,991 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:02,992 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:56:02,992 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:56:02,992 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:56:03,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:02" (1/1) ... [2019-10-22 08:56:03,012 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:02" (1/1) ... [2019-10-22 08:56:03,030 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:56:03,030 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:56:03,031 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:56:03,031 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:56:03,039 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:02" (1/1) ... [2019-10-22 08:56:03,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:02" (1/1) ... [2019-10-22 08:56:03,042 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:02" (1/1) ... [2019-10-22 08:56:03,042 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:02" (1/1) ... [2019-10-22 08:56:03,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:02" (1/1) ... [2019-10-22 08:56:03,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:02" (1/1) ... [2019-10-22 08:56:03,071 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:02" (1/1) ... [2019-10-22 08:56:03,073 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:56:03,073 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:56:03,073 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:56:03,073 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:56:03,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5bac56a4-100a-4071-a06c-a3851d908d96/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 [2019-10-22 08:56:03,130 INFO L130 BoogieDeclarations]: Found specification of procedure new_ll [2019-10-22 08:56:03,131 INFO L138 BoogieDeclarations]: Found implementation of procedure new_ll [2019-10-22 08:56:03,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:56:03,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 08:56:03,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 08:56:03,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 08:56:03,131 INFO L130 BoogieDeclarations]: Found specification of procedure length [2019-10-22 08:56:03,131 INFO L138 BoogieDeclarations]: Found implementation of procedure length [2019-10-22 08:56:03,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:56:03,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:56:03,450 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:56:03,450 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-10-22 08:56:03,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:03 BoogieIcfgContainer [2019-10-22 08:56:03,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:56:03,452 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 08:56:03,453 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 08:56:03,455 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 08:56:03,456 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:56:03,456 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 08:56:02" (1/3) ... [2019-10-22 08:56:03,457 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e3b6376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:56:03, skipping insertion in model container [2019-10-22 08:56:03,457 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:56:03,457 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:02" (2/3) ... [2019-10-22 08:56:03,457 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e3b6376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:56:03, skipping insertion in model container [2019-10-22 08:56:03,457 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:56:03,458 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:03" (3/3) ... [2019-10-22 08:56:03,459 INFO L371 chiAutomizerObserver]: Analyzing ICFG ll_append-alloca-2.i [2019-10-22 08:56:03,502 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 08:56:03,502 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 08:56:03,503 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 08:56:03,503 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:56:03,503 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:56:03,503 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 08:56:03,503 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:56:03,503 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 08:56:03,517 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states. [2019-10-22 08:56:03,541 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-10-22 08:56:03,541 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:56:03,541 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:56:03,549 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-10-22 08:56:03,549 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-10-22 08:56:03,549 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 08:56:03,549 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states. [2019-10-22 08:56:03,551 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-10-22 08:56:03,551 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:56:03,552 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:56:03,552 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-10-22 08:56:03,552 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-10-22 08:56:03,559 INFO L791 eck$LassoCheckResult]: Stem: 23#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 10#L-1true havoc main_#res;havoc main_#t~nondet8, main_#t~ret9.base, main_#t~ret9.offset, main_#t~ret10.base, main_#t~ret10.offset, main_#t~ret11, main_~n~0, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset, main_~y_length~0;main_~n~0 := main_#t~nondet8;havoc main_#t~nondet8; 12#L574true assume !(main_~n~0 < 1); 7#L577true call main_#t~ret9.base, main_#t~ret9.offset := new_ll(main_~n~0);< 15#new_llENTRYtrue [2019-10-22 08:56:03,559 INFO L793 eck$LassoCheckResult]: Loop: 15#new_llENTRYtrue ~n := #in~n; 29#L548true assume !(0 == ~n);call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(12);~head~0.base, ~head~0.offset := #t~malloc2.base, #t~malloc2.offset;call write~int(~n, ~head~0.base, ~head~0.offset, 4); 22#L552true call #t~ret3.base, #t~ret3.offset := new_ll(~n - 1);< 15#new_llENTRYtrue [2019-10-22 08:56:03,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:03,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1418244, now seen corresponding path program 1 times [2019-10-22 08:56:03,576 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:03,576 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389863309] [2019-10-22 08:56:03,576 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:03,576 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:03,577 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:03,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:03,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:03,693 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:56:03,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:03,695 INFO L82 PathProgramCache]: Analyzing trace with hash 29967, now seen corresponding path program 1 times [2019-10-22 08:56:03,695 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:03,695 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821279885] [2019-10-22 08:56:03,696 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:03,696 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:03,696 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:03,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:03,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:03,739 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:56:03,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:03,743 INFO L82 PathProgramCache]: Analyzing trace with hash -698765780, now seen corresponding path program 1 times [2019-10-22 08:56:03,744 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:03,745 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118138370] [2019-10-22 08:56:03,745 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:03,745 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:03,745 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:03,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:03,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:03,788 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:56:03,951 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2019-10-22 08:56:04,094 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2019-10-22 08:56:04,428 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:56:04,428 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:56:04,429 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:56:04,429 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:56:04,429 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 08:56:04,429 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:56:04,429 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:56:04,429 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:56:04,429 INFO L131 ssoRankerPreferences]: Filename of dumped script: ll_append-alloca-2.i_Iteration1_Lasso [2019-10-22 08:56:04,430 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:56:04,430 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:56:04,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,457 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,510 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,514 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,520 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,528 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,532 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:56:04,791 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:56:04,797 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 08:56:04,799 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 [2019-10-22 08:56:04,801 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,802 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,803 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,803 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,803 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,805 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,805 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,807 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,809 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 [2019-10-22 08:56:04,811 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,812 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,812 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,812 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,812 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,813 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,813 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,814 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,815 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 [2019-10-22 08:56:04,817 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,817 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,817 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,817 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,817 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,818 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,819 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,821 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,821 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 [2019-10-22 08:56:04,832 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,832 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,832 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,832 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,832 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,833 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,833 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,834 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,834 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 [2019-10-22 08:56:04,835 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,835 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,835 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,836 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,836 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,836 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,836 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,838 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,838 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 [2019-10-22 08:56:04,839 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,839 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,839 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,839 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,844 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,844 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,845 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,846 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,849 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 [2019-10-22 08:56:04,850 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,850 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,850 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,850 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,850 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,851 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,851 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,852 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,852 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 [2019-10-22 08:56:04,853 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,853 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,853 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,853 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,853 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,854 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,854 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,855 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,855 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 [2019-10-22 08:56:04,859 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,859 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,859 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,860 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,860 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,860 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,860 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,861 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,861 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 [2019-10-22 08:56:04,862 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,862 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,862 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,863 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,863 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,863 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,864 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,864 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,865 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 [2019-10-22 08:56:04,865 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,866 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,866 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,866 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,866 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,866 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,867 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,868 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,868 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 [2019-10-22 08:56:04,869 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,869 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,869 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,869 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,870 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,870 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,870 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,871 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,872 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 [2019-10-22 08:56:04,872 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,872 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,872 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,873 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,873 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,873 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,873 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,874 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,874 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 [2019-10-22 08:56:04,875 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,875 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,876 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,876 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,876 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,876 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,877 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,878 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,878 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 [2019-10-22 08:56:04,879 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,879 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,879 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,879 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,879 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,880 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,880 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,881 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,881 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 [2019-10-22 08:56:04,882 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,882 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,882 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,882 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,884 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:56:04,884 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:56:04,888 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,888 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 [2019-10-22 08:56:04,889 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,889 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,889 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,889 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,889 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,890 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,890 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,891 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,892 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 [2019-10-22 08:56:04,892 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,892 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,893 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,893 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,893 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,893 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,893 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,894 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,895 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 [2019-10-22 08:56:04,896 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,896 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,896 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,896 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,896 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,897 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,897 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,898 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,898 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 [2019-10-22 08:56:04,899 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,899 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,899 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,900 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,900 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,900 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,900 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,901 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,902 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 [2019-10-22 08:56:04,902 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,902 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,903 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,903 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,903 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,903 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,903 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,904 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,905 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 [2019-10-22 08:56:04,905 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,905 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,905 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,906 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,906 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,906 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,906 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,907 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,908 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 [2019-10-22 08:56:04,909 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,909 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,909 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,909 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,909 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,910 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,910 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,910 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,911 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 [2019-10-22 08:56:04,912 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,912 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,912 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,912 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,912 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,913 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,913 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,914 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,914 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 [2019-10-22 08:56:04,915 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,915 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,915 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,915 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,915 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,916 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,916 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,917 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,917 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 [2019-10-22 08:56:04,918 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,918 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,918 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,918 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,919 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,919 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,919 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,920 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,921 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 [2019-10-22 08:56:04,921 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,921 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,922 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,922 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,922 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,923 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,923 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,924 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,930 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 [2019-10-22 08:56:04,935 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,935 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,936 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,936 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,937 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:56:04,937 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:56:04,941 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,941 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 [2019-10-22 08:56:04,942 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,942 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,942 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,942 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,942 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,943 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,943 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,944 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,944 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 [2019-10-22 08:56:04,945 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,945 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,945 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,946 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,946 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,946 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,946 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,947 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,947 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 [2019-10-22 08:56:04,948 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,948 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,948 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,948 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,949 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,949 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,949 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,950 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,950 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 [2019-10-22 08:56:04,951 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,951 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,952 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,952 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,952 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,952 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,952 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,953 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,953 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 [2019-10-22 08:56:04,954 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,954 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,954 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,954 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,954 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,955 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,955 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,956 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,956 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 [2019-10-22 08:56:04,957 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,957 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,957 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,957 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,957 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,958 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,958 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,959 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,960 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 [2019-10-22 08:56:04,960 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,960 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,961 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,961 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,961 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,961 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,961 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,964 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,964 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 [2019-10-22 08:56:04,965 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,965 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,965 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,965 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,965 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,966 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,966 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,967 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,967 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 [2019-10-22 08:56:04,980 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,980 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,980 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,980 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,980 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,981 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,981 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,982 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,982 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 [2019-10-22 08:56:04,983 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,983 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,983 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,983 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,984 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,984 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,984 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,985 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,985 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 [2019-10-22 08:56:04,986 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,986 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,986 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,986 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,986 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,987 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,987 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,988 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,988 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 [2019-10-22 08:56:04,989 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,989 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,989 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,989 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,989 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,990 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,990 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,991 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,992 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 [2019-10-22 08:56:04,992 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,992 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,993 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,993 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,993 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,993 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,993 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,994 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,995 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 [2019-10-22 08:56:04,996 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,996 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,996 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,996 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:56:04,996 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:04,997 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:56:04,997 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:04,998 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:04,998 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 [2019-10-22 08:56:04,998 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:04,999 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:56:04,999 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:04,999 INFO L203 nArgumentSynthesizer]: 2 loop disjuncts [2019-10-22 08:56:04,999 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:05,000 INFO L400 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-10-22 08:56:05,000 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:56:05,005 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:56:05,005 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 [2019-10-22 08:56:05,006 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:56:05,006 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:56:05,006 INFO L203 nArgumentSynthesizer]: 2 loop disjuncts [2019-10-22 08:56:05,006 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:56:05,010 INFO L400 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2019-10-22 08:56:05,010 INFO L401 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-10-22 08:56:05,118 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 08:56:05,154 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2019-10-22 08:56:05,155 INFO L444 ModelExtractionUtils]: 6 out of 11 variables were initially zero. Simplification set additionally 2 variables to zero. [2019-10-22 08:56:05,159 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 08:56:05,162 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2019-10-22 08:56:05,163 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 08:56:05,163 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(new_ll_#in~n) = 1*new_ll_#in~n Supporting invariants [1*new_ll_#in~n >= 0] [2019-10-22 08:56:05,170 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-10-22 08:56:05,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:05,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:05,219 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 08:56:05,220 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:56:05,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:05,257 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-22 08:56:05,258 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:56:05,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:05,301 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2019-10-22 08:56:05,302 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states. Second operand 5 states. [2019-10-22 08:56:05,424 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states.. Second operand 5 states. Result 45 states and 54 transitions. Complement of second has 13 states. [2019-10-22 08:56:05,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-10-22 08:56:05,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-10-22 08:56:05,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2019-10-22 08:56:05,429 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 3 letters. [2019-10-22 08:56:05,430 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:56:05,430 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 7 letters. Loop has 3 letters. [2019-10-22 08:56:05,430 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:56:05,431 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 6 letters. [2019-10-22 08:56:05,431 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:56:05,432 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 54 transitions. [2019-10-22 08:56:05,435 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-10-22 08:56:05,441 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 29 states and 37 transitions. [2019-10-22 08:56:05,442 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2019-10-22 08:56:05,443 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2019-10-22 08:56:05,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 37 transitions. [2019-10-22 08:56:05,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-10-22 08:56:05,444 INFO L688 BuchiCegarLoop]: Abstraction has 29 states and 37 transitions. [2019-10-22 08:56:05,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 37 transitions. [2019-10-22 08:56:05,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2019-10-22 08:56:05,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-10-22 08:56:05,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2019-10-22 08:56:05,469 INFO L711 BuchiCegarLoop]: Abstraction has 27 states and 33 transitions. [2019-10-22 08:56:05,470 INFO L591 BuchiCegarLoop]: Abstraction has 27 states and 33 transitions. [2019-10-22 08:56:05,470 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 08:56:05,470 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 33 transitions. [2019-10-22 08:56:05,471 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-10-22 08:56:05,471 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:56:05,472 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:56:05,472 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:05,472 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 08:56:05,473 INFO L791 eck$LassoCheckResult]: Stem: 160#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 158#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~ret9.base, main_#t~ret9.offset, main_#t~ret10.base, main_#t~ret10.offset, main_#t~ret11, main_~n~0, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset, main_~y_length~0;main_~n~0 := main_#t~nondet8;havoc main_#t~nondet8; 159#L574 assume !(main_~n~0 < 1); 141#L577 call main_#t~ret9.base, main_#t~ret9.offset := new_ll(main_~n~0);< 151#new_llENTRY ~n := #in~n; 163#L548 assume 0 == ~n;#res.base, #res.offset := 0, 0; 140#new_llFINAL assume true; 142#new_llEXIT >#57#return; 153#L577-1 main_~x~0.base, main_~x~0.offset := main_#t~ret9.base, main_#t~ret9.offset;havoc main_#t~ret9.base, main_#t~ret9.offset;append_#in~x.base, append_#in~x.offset, append_#in~y.base, append_#in~y.offset := main_~x~0.base, main_~x~0.offset, main_~x~0.base, main_~x~0.offset;havoc append_#res.base, append_#res.offset;havoc append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem6.base, append_#t~mem6.offset, append_~x.base, append_~x.offset, append_~y.base, append_~y.offset, append_~s~0.base, append_~s~0.offset;append_~x.base, append_~x.offset := append_#in~x.base, append_#in~x.offset;append_~y.base, append_~y.offset := append_#in~y.base, append_#in~y.offset; 154#L563 assume !(append_~x.base == 0 && append_~x.offset == 0);append_~s~0.base, append_~s~0.offset := append_~x.base, append_~x.offset; 157#L566-3 [2019-10-22 08:56:05,473 INFO L793 eck$LassoCheckResult]: Loop: 157#L566-3 call append_#t~mem6.base, append_#t~mem6.offset := read~$Pointer$(append_~x.base, 4 + append_~x.offset, 8); 155#L566-1 assume !!(append_#t~mem6.base != 0 || append_#t~mem6.offset != 0);havoc append_#t~mem6.base, append_#t~mem6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~x.base, 4 + append_~x.offset, 8);append_~x.base, append_~x.offset := append_#t~mem7.base, append_#t~mem7.offset;havoc append_#t~mem7.base, append_#t~mem7.offset; 157#L566-3 [2019-10-22 08:56:05,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:05,473 INFO L82 PathProgramCache]: Analyzing trace with hash 772923198, now seen corresponding path program 1 times [2019-10-22 08:56:05,473 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:05,474 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425657860] [2019-10-22 08:56:05,474 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:05,474 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:05,474 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:05,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:05,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:05,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:05,556 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425657860] [2019-10-22 08:56:05,557 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:05,557 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-22 08:56:05,557 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359466296] [2019-10-22 08:56:05,559 INFO L796 eck$LassoCheckResult]: stem already infeasible [2019-10-22 08:56:05,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:05,560 INFO L82 PathProgramCache]: Analyzing trace with hash 2086, now seen corresponding path program 1 times [2019-10-22 08:56:05,560 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:05,560 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005507227] [2019-10-22 08:56:05,560 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:05,560 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:05,561 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:05,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:05,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:05,569 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:56:05,640 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:05,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 08:56:05,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:56:05,644 INFO L87 Difference]: Start difference. First operand 27 states and 33 transitions. cyclomatic complexity: 9 Second operand 6 states. [2019-10-22 08:56:05,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:05,773 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2019-10-22 08:56:05,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:56:05,774 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 31 transitions. [2019-10-22 08:56:05,775 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-10-22 08:56:05,776 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 24 states and 28 transitions. [2019-10-22 08:56:05,776 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2019-10-22 08:56:05,776 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2019-10-22 08:56:05,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 28 transitions. [2019-10-22 08:56:05,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-10-22 08:56:05,777 INFO L688 BuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2019-10-22 08:56:05,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 28 transitions. [2019-10-22 08:56:05,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-10-22 08:56:05,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-10-22 08:56:05,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2019-10-22 08:56:05,779 INFO L711 BuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2019-10-22 08:56:05,779 INFO L591 BuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2019-10-22 08:56:05,779 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-10-22 08:56:05,779 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 28 transitions. [2019-10-22 08:56:05,782 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-10-22 08:56:05,783 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:56:05,783 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:56:05,783 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:05,784 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 08:56:05,784 INFO L791 eck$LassoCheckResult]: Stem: 231#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 229#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~ret9.base, main_#t~ret9.offset, main_#t~ret10.base, main_#t~ret10.offset, main_#t~ret11, main_~n~0, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset, main_~y_length~0;main_~n~0 := main_#t~nondet8;havoc main_#t~nondet8; 230#L574 assume !(main_~n~0 < 1); 220#L577 call main_#t~ret9.base, main_#t~ret9.offset := new_ll(main_~n~0);< 222#new_llENTRY ~n := #in~n; 232#L548 assume !(0 == ~n);call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(12);~head~0.base, ~head~0.offset := #t~malloc2.base, #t~malloc2.offset;call write~int(~n, ~head~0.base, ~head~0.offset, 4); 212#L552 call #t~ret3.base, #t~ret3.offset := new_ll(~n - 1);< 223#new_llENTRY ~n := #in~n; 233#L548 assume 0 == ~n;#res.base, #res.offset := 0, 0; 211#new_llFINAL assume true; 213#new_llEXIT >#53#return; 219#L552-1 call write~$Pointer$(#t~ret3.base, #t~ret3.offset, ~head~0.base, 4 + ~head~0.offset, 8);havoc #t~ret3.base, #t~ret3.offset;#res.base, #res.offset := ~head~0.base, ~head~0.offset; 221#new_llFINAL assume true; 234#new_llEXIT >#57#return; 224#L577-1 main_~x~0.base, main_~x~0.offset := main_#t~ret9.base, main_#t~ret9.offset;havoc main_#t~ret9.base, main_#t~ret9.offset;append_#in~x.base, append_#in~x.offset, append_#in~y.base, append_#in~y.offset := main_~x~0.base, main_~x~0.offset, main_~x~0.base, main_~x~0.offset;havoc append_#res.base, append_#res.offset;havoc append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem6.base, append_#t~mem6.offset, append_~x.base, append_~x.offset, append_~y.base, append_~y.offset, append_~s~0.base, append_~s~0.offset;append_~x.base, append_~x.offset := append_#in~x.base, append_#in~x.offset;append_~y.base, append_~y.offset := append_#in~y.base, append_#in~y.offset; 225#L563 assume !(append_~x.base == 0 && append_~x.offset == 0);append_~s~0.base, append_~s~0.offset := append_~x.base, append_~x.offset; 228#L566-3 [2019-10-22 08:56:05,784 INFO L793 eck$LassoCheckResult]: Loop: 228#L566-3 call append_#t~mem6.base, append_#t~mem6.offset := read~$Pointer$(append_~x.base, 4 + append_~x.offset, 8); 226#L566-1 assume !!(append_#t~mem6.base != 0 || append_#t~mem6.offset != 0);havoc append_#t~mem6.base, append_#t~mem6.offset;call append_#t~mem7.base, append_#t~mem7.offset := read~$Pointer$(append_~x.base, 4 + append_~x.offset, 8);append_~x.base, append_~x.offset := append_#t~mem7.base, append_#t~mem7.offset;havoc append_#t~mem7.base, append_#t~mem7.offset; 228#L566-3 [2019-10-22 08:56:05,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:05,785 INFO L82 PathProgramCache]: Analyzing trace with hash 704779872, now seen corresponding path program 1 times [2019-10-22 08:56:05,785 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:05,785 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062242864] [2019-10-22 08:56:05,785 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:05,785 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:05,785 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:05,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:05,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:05,828 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:56:05,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:05,831 INFO L82 PathProgramCache]: Analyzing trace with hash 2086, now seen corresponding path program 2 times [2019-10-22 08:56:05,832 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:05,832 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146658478] [2019-10-22 08:56:05,832 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:05,832 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:05,832 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:05,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:05,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:05,842 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:56:05,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:05,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1311374651, now seen corresponding path program 1 times [2019-10-22 08:56:05,845 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:05,845 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872235217] [2019-10-22 08:56:05,845 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:05,846 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:05,846 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:05,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:05,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:06,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:06,084 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 08:56:06,085 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872235217] [2019-10-22 08:56:06,085 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284896738] [2019-10-22 08:56:06,085 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5bac56a4-100a-4071-a06c-a3851d908d96/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:56:06,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:06,154 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 46 conjunts are in the unsatisfiable core [2019-10-22 08:56:06,155 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:56:06,203 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-10-22 08:56:06,205 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:56:06,214 INFO L567 ElimStorePlain]: treesize reduction 3, result has 75.0 percent of original size [2019-10-22 08:56:06,215 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:56:06,215 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2019-10-22 08:56:06,301 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-10-22 08:56:06,302 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:56:06,312 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:56:06,315 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-10-22 08:56:06,316 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 08:56:06,321 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:56:06,324 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-10-22 08:56:06,325 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-22 08:56:06,330 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:56:06,330 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:56:06,331 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:36, output treesize:18 [2019-10-22 08:56:06,343 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-10-22 08:56:06,344 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-22 08:56:06,349 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:56:06,352 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-10-22 08:56:06,352 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-22 08:56:06,356 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:56:06,357 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-22 08:56:06,357 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2019-10-22 08:56:06,377 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:06,377 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:56:06,378 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2019-10-22 08:56:06,378 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150603665] [2019-10-22 08:56:06,429 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:06,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-22 08:56:06,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2019-10-22 08:56:06,429 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. cyclomatic complexity: 7 Second operand 15 states. [2019-10-22 08:56:06,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:06,628 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2019-10-22 08:56:06,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-22 08:56:06,629 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 40 transitions. [2019-10-22 08:56:06,630 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-10-22 08:56:06,631 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 34 states and 40 transitions. [2019-10-22 08:56:06,631 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2019-10-22 08:56:06,631 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2019-10-22 08:56:06,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 40 transitions. [2019-10-22 08:56:06,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-10-22 08:56:06,632 INFO L688 BuchiCegarLoop]: Abstraction has 34 states and 40 transitions. [2019-10-22 08:56:06,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 40 transitions. [2019-10-22 08:56:06,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 31. [2019-10-22 08:56:06,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-10-22 08:56:06,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2019-10-22 08:56:06,635 INFO L711 BuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2019-10-22 08:56:06,635 INFO L591 BuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2019-10-22 08:56:06,635 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-10-22 08:56:06,635 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 37 transitions. [2019-10-22 08:56:06,639 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-10-22 08:56:06,641 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:56:06,641 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:56:06,641 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:06,641 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-10-22 08:56:06,642 INFO L791 eck$LassoCheckResult]: Stem: 378#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 376#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~ret9.base, main_#t~ret9.offset, main_#t~ret10.base, main_#t~ret10.offset, main_#t~ret11, main_~n~0, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset, main_~y_length~0;main_~n~0 := main_#t~nondet8;havoc main_#t~nondet8; 377#L574 assume !(main_~n~0 < 1); 362#L577 call main_#t~ret9.base, main_#t~ret9.offset := new_ll(main_~n~0);< 370#new_llENTRY ~n := #in~n; 382#L548 assume !(0 == ~n);call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(12);~head~0.base, ~head~0.offset := #t~malloc2.base, #t~malloc2.offset;call write~int(~n, ~head~0.base, ~head~0.offset, 4); 361#L552 call #t~ret3.base, #t~ret3.offset := new_ll(~n - 1);< 371#new_llENTRY ~n := #in~n; 383#L548 assume 0 == ~n;#res.base, #res.offset := 0, 0; 384#new_llFINAL assume true; 381#new_llEXIT >#53#return; 369#L552-1 call write~$Pointer$(#t~ret3.base, #t~ret3.offset, ~head~0.base, 4 + ~head~0.offset, 8);havoc #t~ret3.base, #t~ret3.offset;#res.base, #res.offset := ~head~0.base, ~head~0.offset; 360#new_llFINAL assume true; 363#new_llEXIT >#57#return; 387#L577-1 main_~x~0.base, main_~x~0.offset := main_#t~ret9.base, main_#t~ret9.offset;havoc main_#t~ret9.base, main_#t~ret9.offset;append_#in~x.base, append_#in~x.offset, append_#in~y.base, append_#in~y.offset := main_~x~0.base, main_~x~0.offset, main_~x~0.base, main_~x~0.offset;havoc append_#res.base, append_#res.offset;havoc append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem6.base, append_#t~mem6.offset, append_~x.base, append_~x.offset, append_~y.base, append_~y.offset, append_~s~0.base, append_~s~0.offset;append_~x.base, append_~x.offset := append_#in~x.base, append_#in~x.offset;append_~y.base, append_~y.offset := append_#in~y.base, append_#in~y.offset; 386#L563 assume append_~x.base == 0 && append_~x.offset == 0;append_#res.base, append_#res.offset := append_~y.base, append_~y.offset; 368#L569 main_#t~ret10.base, main_#t~ret10.offset := append_#res.base, append_#res.offset;main_~y~0.base, main_~y~0.offset := main_#t~ret10.base, main_#t~ret10.offset;havoc main_#t~ret10.base, main_#t~ret10.offset; 365#L579 call main_#t~ret11 := length(main_~y~0.base, main_~y~0.offset);< 364#lengthENTRY [2019-10-22 08:56:06,642 INFO L793 eck$LassoCheckResult]: Loop: 364#lengthENTRY ~xs.base, ~xs.offset := #in~xs.base, #in~xs.offset; 367#L557 assume !(~xs.base == 0 && ~xs.offset == 0);call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~xs.base, 4 + ~xs.offset, 8); 366#L559 call #t~ret5 := length(#t~mem4.base, #t~mem4.offset);< 364#lengthENTRY [2019-10-22 08:56:06,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:06,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1311376214, now seen corresponding path program 1 times [2019-10-22 08:56:06,642 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:06,642 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539639245] [2019-10-22 08:56:06,642 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:06,643 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:06,643 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:06,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:06,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:06,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:06,728 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 08:56:06,739 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539639245] [2019-10-22 08:56:06,740 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:06,740 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 08:56:06,740 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481299572] [2019-10-22 08:56:06,740 INFO L796 eck$LassoCheckResult]: stem already infeasible [2019-10-22 08:56:06,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:06,740 INFO L82 PathProgramCache]: Analyzing trace with hash 37905, now seen corresponding path program 1 times [2019-10-22 08:56:06,741 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:06,741 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182592533] [2019-10-22 08:56:06,741 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:06,741 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:06,741 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:06,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:06,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:06,746 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:56:06,853 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:06,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 08:56:06,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 08:56:06,853 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. cyclomatic complexity: 9 Second operand 7 states. [2019-10-22 08:56:06,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:06,932 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2019-10-22 08:56:06,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:56:06,933 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 41 transitions. [2019-10-22 08:56:06,934 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-10-22 08:56:06,935 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 36 states and 41 transitions. [2019-10-22 08:56:06,935 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2019-10-22 08:56:06,935 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2019-10-22 08:56:06,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 41 transitions. [2019-10-22 08:56:06,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-10-22 08:56:06,936 INFO L688 BuchiCegarLoop]: Abstraction has 36 states and 41 transitions. [2019-10-22 08:56:06,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 41 transitions. [2019-10-22 08:56:06,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2019-10-22 08:56:06,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-10-22 08:56:06,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2019-10-22 08:56:06,939 INFO L711 BuchiCegarLoop]: Abstraction has 31 states and 35 transitions. [2019-10-22 08:56:06,939 INFO L591 BuchiCegarLoop]: Abstraction has 31 states and 35 transitions. [2019-10-22 08:56:06,939 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-10-22 08:56:06,943 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 35 transitions. [2019-10-22 08:56:06,944 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-10-22 08:56:06,944 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:56:06,944 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:56:06,945 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:56:06,945 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-10-22 08:56:06,945 INFO L791 eck$LassoCheckResult]: Stem: 474#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 470#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~ret9.base, main_#t~ret9.offset, main_#t~ret10.base, main_#t~ret10.offset, main_#t~ret11, main_~n~0, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset, main_~y_length~0;main_~n~0 := main_#t~nondet8;havoc main_#t~nondet8; 471#L574 assume !(main_~n~0 < 1); 456#L577 call main_#t~ret9.base, main_#t~ret9.offset := new_ll(main_~n~0);< 464#new_llENTRY ~n := #in~n; 478#L548 assume !(0 == ~n);call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(12);~head~0.base, ~head~0.offset := #t~malloc2.base, #t~malloc2.offset;call write~int(~n, ~head~0.base, ~head~0.offset, 4); 455#L552 call #t~ret3.base, #t~ret3.offset := new_ll(~n - 1);< 465#new_llENTRY ~n := #in~n; 479#L548 assume 0 == ~n;#res.base, #res.offset := 0, 0; 480#new_llFINAL assume true; 476#new_llEXIT >#53#return; 477#L552-1 call write~$Pointer$(#t~ret3.base, #t~ret3.offset, ~head~0.base, 4 + ~head~0.offset, 8);havoc #t~ret3.base, #t~ret3.offset;#res.base, #res.offset := ~head~0.base, ~head~0.offset; 484#new_llFINAL assume true; 481#new_llEXIT >#57#return; 466#L577-1 main_~x~0.base, main_~x~0.offset := main_#t~ret9.base, main_#t~ret9.offset;havoc main_#t~ret9.base, main_#t~ret9.offset;append_#in~x.base, append_#in~x.offset, append_#in~y.base, append_#in~y.offset := main_~x~0.base, main_~x~0.offset, main_~x~0.base, main_~x~0.offset;havoc append_#res.base, append_#res.offset;havoc append_#t~mem7.base, append_#t~mem7.offset, append_#t~mem6.base, append_#t~mem6.offset, append_~x.base, append_~x.offset, append_~y.base, append_~y.offset, append_~s~0.base, append_~s~0.offset;append_~x.base, append_~x.offset := append_#in~x.base, append_#in~x.offset;append_~y.base, append_~y.offset := append_#in~y.base, append_#in~y.offset; 467#L563 assume !(append_~x.base == 0 && append_~x.offset == 0);append_~s~0.base, append_~s~0.offset := append_~x.base, append_~x.offset; 482#L566-3 call append_#t~mem6.base, append_#t~mem6.offset := read~$Pointer$(append_~x.base, 4 + append_~x.offset, 8); 468#L566-1 assume !(append_#t~mem6.base != 0 || append_#t~mem6.offset != 0);havoc append_#t~mem6.base, append_#t~mem6.offset; 469#L566-4 call write~$Pointer$(append_~y.base, append_~y.offset, append_~x.base, 4 + append_~x.offset, 8);append_#res.base, append_#res.offset := append_~s~0.base, append_~s~0.offset; 462#L569 main_#t~ret10.base, main_#t~ret10.offset := append_#res.base, append_#res.offset;main_~y~0.base, main_~y~0.offset := main_#t~ret10.base, main_#t~ret10.offset;havoc main_#t~ret10.base, main_#t~ret10.offset; 459#L579 call main_#t~ret11 := length(main_~y~0.base, main_~y~0.offset);< 458#lengthENTRY [2019-10-22 08:56:06,945 INFO L793 eck$LassoCheckResult]: Loop: 458#lengthENTRY ~xs.base, ~xs.offset := #in~xs.base, #in~xs.offset; 461#L557 assume !(~xs.base == 0 && ~xs.offset == 0);call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~xs.base, 4 + ~xs.offset, 8); 460#L559 call #t~ret5 := length(#t~mem4.base, #t~mem4.offset);< 458#lengthENTRY [2019-10-22 08:56:06,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:06,946 INFO L82 PathProgramCache]: Analyzing trace with hash -139719339, now seen corresponding path program 1 times [2019-10-22 08:56:06,946 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:06,946 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090702838] [2019-10-22 08:56:06,946 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:06,946 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:06,946 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:06,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:06,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:06,978 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:56:06,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:06,979 INFO L82 PathProgramCache]: Analyzing trace with hash 37905, now seen corresponding path program 2 times [2019-10-22 08:56:06,979 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:06,979 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023445303] [2019-10-22 08:56:06,979 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:06,979 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:06,979 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:06,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:06,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:06,989 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:56:06,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:06,990 INFO L82 PathProgramCache]: Analyzing trace with hash -555510211, now seen corresponding path program 1 times [2019-10-22 08:56:06,990 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:06,990 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813426023] [2019-10-22 08:56:06,991 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:06,991 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:06,991 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:07,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:07,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:07,022 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:56:07,485 WARN L191 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 111 [2019-10-22 08:56:07,497 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 08:56:07,539 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:56:07,545 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 08:56:07,601 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:56:07,601 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-10-22 08:56:07,602 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:131, output treesize:107 [2019-10-22 08:56:08,297 WARN L191 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 148 [2019-10-22 08:56:08,321 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-22 08:56:08,410 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-22 08:56:08,411 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-10-22 08:56:08,412 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:217, output treesize:221 [2019-10-22 08:56:08,518 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2019-10-22 08:56:08,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 08:56:08 BoogieIcfgContainer [2019-10-22 08:56:08,711 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 08:56:08,711 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:56:08,711 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:56:08,711 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:56:08,712 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:03" (3/4) ... [2019-10-22 08:56:08,714 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-10-22 08:56:08,802 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5bac56a4-100a-4071-a06c-a3851d908d96/bin/uautomizer/witness.graphml [2019-10-22 08:56:08,803 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:56:08,804 INFO L168 Benchmark]: Toolchain (without parser) took 6288.76 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 307.8 MB). Free memory was 940.4 MB in the beginning and 1.2 GB in the end (delta: -274.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:08,804 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:08,805 INFO L168 Benchmark]: CACSL2BoogieTranslator took 475.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -188.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:08,805 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.45 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: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:08,806 INFO L168 Benchmark]: Boogie Preprocessor took 42.57 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: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:08,806 INFO L168 Benchmark]: RCFGBuilder took 378.93 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: 30.8 MB). Peak memory consumption was 30.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:08,807 INFO L168 Benchmark]: BuchiAutomizer took 5258.20 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 162.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -125.0 MB). Peak memory consumption was 354.9 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:08,807 INFO L168 Benchmark]: Witness Printer took 91.72 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:08,810 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 475.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -188.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 38.45 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: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.57 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: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 378.93 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: 30.8 MB). Peak memory consumption was 30.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 5258.20 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 162.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -125.0 MB). Peak memory consumption was 354.9 MB. Max. memory is 11.5 GB. * Witness Printer took 91.72 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (3 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function \old(n) and consists of 5 locations. 3 modules have a trivial ranking function, the largest among these consists of 15 locations. The remainder module has 31 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.1s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 4.3s. Construction of modules took 0.2s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 31 states and ocurred in iteration 3. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 61 SDtfs, 58 SDslu, 209 SDs, 0 SdLazy, 237 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU2 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital133 mio100 ax100 hnf100 lsp95 ukn25 mio100 lsp42 div100 bol100 ite100 ukn100 eq214 hnf86 smp100 dnf130 smp100 tf100 neg94 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 157ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 555]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=-2} State at position 1 is {x=0, x=0, y_length=0, NULL=0, y=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@7efb897a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@74afa3e8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@c86f35c=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@c86f35c=0, s=0, NULL=-2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50fa571a=0, xs=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@169cdc8f=0, NULL=0, y=0, y=0, \result=0, x=0, y=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ca61e16=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69505bde=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69505bde=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@74afa3e8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c98dba0=0, x=0, y=0, n=0, NULL=0, y=0, xs=-1, \result=0, \result=0, NULL=0, xs=0, xs=0, x=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50fa571a=0, s=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@7efb897a=0, x=0, NULL=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 555]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L573] int n = __VERIFIER_nondet_int(); [L574] COND FALSE !(n < 1) [L577] CALL, EXPR new_ll(n) [L548] COND FALSE !(n == 0) [L550] node_t* head = malloc(sizeof(node_t)); [L551] head->val = n [L552] CALL, EXPR new_ll(n-1) [L548] COND TRUE n == 0 [L549] return ((void *)0); [L552] RET, EXPR new_ll(n-1) [L552] head->next = new_ll(n-1) [L553] return head; [L577] RET, EXPR new_ll(n) [L577] node_t* x = new_ll(n); [L563] COND FALSE !(x == ((void *)0)) [L565] node_t* s = x; [L566] EXPR x->next [L566] COND FALSE !(x->next != ((void *)0)) [L568] x->next = y [L569] return s; [L578] node_t* y = append(x, x); [L579] CALL length(y) Loop: [L557] COND FALSE !(xs == ((void *)0)) [L559] EXPR xs->next [L559] CALL length(xs->next) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...