./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-recursive-malloc/rec_strlen_malloc_true-termination.c.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f3df6b03-b706-4525-8902-35b5623e8cab/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f3df6b03-b706-4525-8902-35b5623e8cab/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f3df6b03-b706-4525-8902-35b5623e8cab/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f3df6b03-b706-4525-8902-35b5623e8cab/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/rec_strlen_malloc_true-termination.c.i -s /tmp/vcloud-vcloud-master/worker/working_dir_f3df6b03-b706-4525-8902-35b5623e8cab/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f3df6b03-b706-4525-8902-35b5623e8cab/bin-2019/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 03de162ccadd41d16dfce723d629801bfe048af4 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 13:19:02,562 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 13:19:02,564 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 13:19:02,572 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 13:19:02,572 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 13:19:02,572 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 13:19:02,573 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 13:19:02,574 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 13:19:02,575 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 13:19:02,576 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 13:19:02,577 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 13:19:02,577 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 13:19:02,578 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 13:19:02,578 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 13:19:02,579 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 13:19:02,580 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 13:19:02,580 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 13:19:02,581 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 13:19:02,583 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 13:19:02,584 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 13:19:02,585 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 13:19:02,585 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 13:19:02,587 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 13:19:02,587 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 13:19:02,587 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 13:19:02,588 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 13:19:02,589 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 13:19:02,590 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 13:19:02,590 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 13:19:02,591 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 13:19:02,591 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 13:19:02,592 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 13:19:02,592 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 13:19:02,592 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 13:19:02,593 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 13:19:02,593 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 13:19:02,594 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f3df6b03-b706-4525-8902-35b5623e8cab/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 13:19:02,604 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 13:19:02,605 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 13:19:02,605 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 13:19:02,606 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 13:19:02,606 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 13:19:02,606 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 13:19:02,606 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 13:19:02,606 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 13:19:02,606 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 13:19:02,607 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 13:19:02,607 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 13:19:02,607 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 13:19:02,607 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 13:19:02,607 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 13:19:02,607 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 13:19:02,607 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 13:19:02,607 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 13:19:02,608 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 13:19:02,608 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 13:19:02,608 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 13:19:02,608 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 13:19:02,608 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 13:19:02,608 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 13:19:02,608 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 13:19:02,608 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 13:19:02,609 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 13:19:02,609 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 13:19:02,609 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 13:19:02,610 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 13:19:02,610 INFO L133 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_f3df6b03-b706-4525-8902-35b5623e8cab/bin-2019/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 -> 03de162ccadd41d16dfce723d629801bfe048af4 [2018-11-28 13:19:02,631 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 13:19:02,639 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 13:19:02,641 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 13:19:02,641 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 13:19:02,642 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 13:19:02,642 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f3df6b03-b706-4525-8902-35b5623e8cab/bin-2019/uautomizer/../../sv-benchmarks/c/termination-recursive-malloc/rec_strlen_malloc_true-termination.c.i [2018-11-28 13:19:02,680 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f3df6b03-b706-4525-8902-35b5623e8cab/bin-2019/uautomizer/data/6704f560d/730d2ea98f4e4a3186821cab10ebb169/FLAGaf0bb0239 [2018-11-28 13:19:03,025 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 13:19:03,025 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f3df6b03-b706-4525-8902-35b5623e8cab/sv-benchmarks/c/termination-recursive-malloc/rec_strlen_malloc_true-termination.c.i [2018-11-28 13:19:03,031 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f3df6b03-b706-4525-8902-35b5623e8cab/bin-2019/uautomizer/data/6704f560d/730d2ea98f4e4a3186821cab10ebb169/FLAGaf0bb0239 [2018-11-28 13:19:03,450 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f3df6b03-b706-4525-8902-35b5623e8cab/bin-2019/uautomizer/data/6704f560d/730d2ea98f4e4a3186821cab10ebb169 [2018-11-28 13:19:03,452 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 13:19:03,453 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 13:19:03,453 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 13:19:03,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 13:19:03,455 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 13:19:03,456 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:19:03" (1/1) ... [2018-11-28 13:19:03,458 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23c1b638 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:19:03, skipping insertion in model container [2018-11-28 13:19:03,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:19:03" (1/1) ... [2018-11-28 13:19:03,462 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 13:19:03,474 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 13:19:03,569 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:19:03,575 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 13:19:03,585 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:19:03,595 INFO L195 MainTranslator]: Completed translation [2018-11-28 13:19:03,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:19:03 WrapperNode [2018-11-28 13:19:03,595 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 13:19:03,596 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 13:19:03,596 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 13:19:03,596 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 13:19:03,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:19:03" (1/1) ... [2018-11-28 13:19:03,606 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:19:03" (1/1) ... [2018-11-28 13:19:03,618 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 13:19:03,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 13:19:03,618 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 13:19:03,619 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 13:19:03,657 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:19:03" (1/1) ... [2018-11-28 13:19:03,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:19:03" (1/1) ... [2018-11-28 13:19:03,659 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:19:03" (1/1) ... [2018-11-28 13:19:03,659 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:19:03" (1/1) ... [2018-11-28 13:19:03,663 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:19:03" (1/1) ... [2018-11-28 13:19:03,664 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:19:03" (1/1) ... [2018-11-28 13:19:03,665 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:19:03" (1/1) ... [2018-11-28 13:19:03,667 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 13:19:03,667 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 13:19:03,667 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 13:19:03,667 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 13:19:03,668 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:19:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f3df6b03-b706-4525-8902-35b5623e8cab/bin-2019/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 [2018-11-28 13:19:03,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 13:19:03,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 13:19:03,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 13:19:03,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 13:19:03,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 13:19:03,704 INFO L130 BoogieDeclarations]: Found specification of procedure rec_cstrlen [2018-11-28 13:19:03,704 INFO L138 BoogieDeclarations]: Found implementation of procedure rec_cstrlen [2018-11-28 13:19:03,801 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 13:19:03,801 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 13:19:03,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:19:03 BoogieIcfgContainer [2018-11-28 13:19:03,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 13:19:03,802 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 13:19:03,802 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 13:19:03,804 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 13:19:03,804 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 13:19:03,804 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 01:19:03" (1/3) ... [2018-11-28 13:19:03,805 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@78ec9f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 01:19:03, skipping insertion in model container [2018-11-28 13:19:03,805 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 13:19:03,805 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:19:03" (2/3) ... [2018-11-28 13:19:03,806 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@78ec9f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 01:19:03, skipping insertion in model container [2018-11-28 13:19:03,806 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 13:19:03,806 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:19:03" (3/3) ... [2018-11-28 13:19:03,807 INFO L375 chiAutomizerObserver]: Analyzing ICFG rec_strlen_malloc_true-termination.c.i [2018-11-28 13:19:03,840 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 13:19:03,841 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 13:19:03,841 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 13:19:03,841 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 13:19:03,841 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 13:19:03,841 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 13:19:03,841 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 13:19:03,841 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 13:19:03,842 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 13:19:03,850 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2018-11-28 13:19:03,869 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 13:19:03,869 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:19:03,869 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:19:03,874 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 13:19:03,874 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 13:19:03,874 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 13:19:03,874 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2018-11-28 13:19:03,875 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 13:19:03,875 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:19:03,876 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:19:03,876 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 13:19:03,876 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 13:19:03,881 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 10#L-1true havoc main_#res;havoc main_#t~ret5.base, main_#t~ret5.offset, main_#t~ret6;havoc build_nondet_String_#res.base, build_nondet_String_#res.offset;havoc build_nondet_String_#t~nondet1, build_nondet_String_#t~malloc2.base, build_nondet_String_#t~malloc2.offset, build_nondet_String_~length~0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset;build_nondet_String_~length~0 := build_nondet_String_#t~nondet1;havoc build_nondet_String_#t~nondet1; 12#L11true assume !(build_nondet_String_~length~0 < 1); 9#L11-2true call build_nondet_String_#t~malloc2.base, build_nondet_String_#t~malloc2.offset := #Ultimate.alloc(build_nondet_String_~length~0);build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset := build_nondet_String_#t~malloc2.base, build_nondet_String_#t~malloc2.offset;call write~int(0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset + (build_nondet_String_~length~0 - 1), 1);build_nondet_String_#res.base, build_nondet_String_#res.offset := build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset; 3#L16true main_#t~ret5.base, main_#t~ret5.offset := build_nondet_String_#res.base, build_nondet_String_#res.offset; 8#L30true call main_#t~ret6 := rec_cstrlen(main_#t~ret5.base, main_#t~ret5.offset);< 4#rec_cstrlenENTRYtrue [2018-11-28 13:19:03,881 INFO L796 eck$LassoCheckResult]: Loop: 4#rec_cstrlenENTRYtrue ~s.base, ~s.offset := #in~s.base, #in~s.offset;call #t~mem3 := read~int(~s.base, ~s.offset, 1); 14#L22true assume !(0 == #t~mem3);havoc #t~mem3; 18#L25true call #t~ret4 := rec_cstrlen(~s.base, 1 + ~s.offset);< 4#rec_cstrlenENTRYtrue [2018-11-28 13:19:03,885 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:19:03,885 INFO L82 PathProgramCache]: Analyzing trace with hash 889568275, now seen corresponding path program 1 times [2018-11-28 13:19:03,886 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:19:03,887 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:19:03,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:19:03,917 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:19:03,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:19:03,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:19:03,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:19:03,976 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:19:03,976 INFO L82 PathProgramCache]: Analyzing trace with hash 46806, now seen corresponding path program 1 times [2018-11-28 13:19:03,976 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:19:03,977 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:19:03,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:19:03,977 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:19:03,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:19:03,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:19:03,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:19:03,986 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:19:03,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1180281220, now seen corresponding path program 1 times [2018-11-28 13:19:03,986 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:19:03,986 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:19:03,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:19:03,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:19:03,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:19:04,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:19:04,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:19:04,321 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 13:19:04,322 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 13:19:04,322 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 13:19:04,322 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 13:19:04,322 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 13:19:04,322 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:19:04,322 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 13:19:04,322 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 13:19:04,323 INFO L131 ssoRankerPreferences]: Filename of dumped script: rec_strlen_malloc_true-termination.c.i_Iteration1_Lasso [2018-11-28 13:19:04,323 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 13:19:04,323 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 13:19:04,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:19:04,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:19:04,344 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:19:04,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:19:04,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:19:04,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:19:04,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:19:04,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:19:04,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:19:04,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:19:04,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:19:04,368 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:19:04,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:19:04,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:19:04,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:19:04,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:19:04,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:19:04,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:19:04,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:19:04,382 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:19:04,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:19:04,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:19:04,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:19:04,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:19:04,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:19:04,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:19:04,551 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 13:19:04,555 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 13:19:04,556 INFO L122 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 [2018-11-28 13:19:04,557 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:19:04,557 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:19:04,558 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:19:04,558 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:19:04,558 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:19:04,559 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:19:04,560 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:19:04,561 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:19:04,561 INFO L122 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 [2018-11-28 13:19:04,562 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:19:04,562 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:19:04,562 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:19:04,563 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:19:04,563 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:19:04,563 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:19:04,563 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:19:04,564 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:19:04,564 INFO L122 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 [2018-11-28 13:19:04,565 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:19:04,565 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:19:04,565 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:19:04,566 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:19:04,566 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:19:04,566 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:19:04,566 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:19:04,567 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:19:04,567 INFO L122 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 [2018-11-28 13:19:04,568 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:19:04,568 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:19:04,568 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:19:04,568 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:19:04,568 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:19:04,569 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:19:04,569 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:19:04,570 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:19:04,570 INFO L122 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 [2018-11-28 13:19:04,571 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:19:04,571 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:19:04,571 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:19:04,571 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:19:04,571 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:19:04,572 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:19:04,572 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:19:04,573 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:19:04,573 INFO L122 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 [2018-11-28 13:19:04,574 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:19:04,574 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:19:04,574 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:19:04,574 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:19:04,576 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:19:04,576 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:19:04,580 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:19:04,580 INFO L122 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 [2018-11-28 13:19:04,581 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:19:04,581 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:19:04,581 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:19:04,582 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:19:04,582 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:19:04,582 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:19:04,582 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:19:04,583 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:19:04,583 INFO L122 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 [2018-11-28 13:19:04,584 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:19:04,584 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:19:04,584 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:19:04,584 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:19:04,584 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:19:04,585 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:19:04,585 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:19:04,586 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:19:04,586 INFO L122 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 [2018-11-28 13:19:04,586 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:19:04,587 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:19:04,587 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:19:04,587 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:19:04,587 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:19:04,588 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:19:04,588 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:19:04,588 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:19:04,589 INFO L122 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 [2018-11-28 13:19:04,589 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:19:04,589 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:19:04,589 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:19:04,590 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:19:04,590 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:19:04,590 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:19:04,590 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:19:04,591 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:19:04,591 INFO L122 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 [2018-11-28 13:19:04,592 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:19:04,592 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:19:04,592 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:19:04,592 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:19:04,592 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:19:04,593 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:19:04,593 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:19:04,594 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:19:04,594 INFO L122 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 [2018-11-28 13:19:04,594 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:19:04,595 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:19:04,595 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:19:04,595 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:19:04,595 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:19:04,595 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:19:04,596 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:19:04,596 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:19:04,597 INFO L122 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 [2018-11-28 13:19:04,597 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:19:04,597 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:19:04,597 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:19:04,598 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:19:04,598 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:19:04,598 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:19:04,598 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:19:04,599 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:19:04,599 INFO L122 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 [2018-11-28 13:19:04,600 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:19:04,600 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:19:04,600 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:19:04,600 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:19:04,600 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:19:04,601 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:19:04,601 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:19:04,602 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:19:04,602 INFO L122 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 [2018-11-28 13:19:04,602 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:19:04,603 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:19:04,603 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:19:04,603 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:19:04,604 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:19:04,605 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:19:04,608 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:19:04,608 INFO L122 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 [2018-11-28 13:19:04,608 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:19:04,609 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:19:04,609 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:19:04,609 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:19:04,609 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:19:04,610 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:19:04,610 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:19:04,611 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:19:04,611 INFO L122 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 [2018-11-28 13:19:04,612 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:19:04,612 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:19:04,612 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:19:04,612 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:19:04,613 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:19:04,613 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:19:04,613 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:19:04,615 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:19:04,615 INFO L122 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 [2018-11-28 13:19:04,616 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:19:04,616 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:19:04,616 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:19:04,616 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:19:04,616 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:19:04,617 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:19:04,617 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:19:04,618 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:19:04,618 INFO L122 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 [2018-11-28 13:19:04,618 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:19:04,619 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:19:04,619 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:19:04,619 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-28 13:19:04,619 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:19:04,620 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-28 13:19:04,620 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:19:04,623 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:19:04,624 INFO L122 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 [2018-11-28 13:19:04,624 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:19:04,624 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2018-11-28 13:19:04,625 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:19:04,625 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:19:04,627 INFO L402 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2018-11-28 13:19:04,627 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:19:04,636 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:19:04,636 INFO L122 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 [2018-11-28 13:19:04,637 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:19:04,637 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:19:04,637 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:19:04,637 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:19:04,639 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:19:04,639 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:19:04,648 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:19:04,649 INFO L122 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 [2018-11-28 13:19:04,649 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:19:04,649 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:19:04,649 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:19:04,650 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:19:04,651 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:19:04,651 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:19:04,654 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:19:04,654 INFO L122 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 [2018-11-28 13:19:04,655 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:19:04,655 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:19:04,655 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:19:04,655 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:19:04,657 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:19:04,657 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:19:04,681 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 13:19:04,695 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 13:19:04,696 INFO L444 ModelExtractionUtils]: 6 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 13:19:04,698 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 13:19:04,699 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-11-28 13:19:04,699 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 13:19:04,700 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length rec_cstrlen_#in~s.base)_1, rec_cstrlen_#in~s.offset) = 1*v_rep(select #length rec_cstrlen_#in~s.base)_1 - 1*rec_cstrlen_#in~s.offset Supporting invariants [] [2018-11-28 13:19:04,709 INFO L297 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2018-11-28 13:19:04,717 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-11-28 13:19:04,727 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:19:04,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:19:04,748 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:19:04,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:19:04,760 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:19:04,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:19:04,781 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 13:19:04,782 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 3 states. [2018-11-28 13:19:04,850 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 3 states. Result 31 states and 36 transitions. Complement of second has 8 states. [2018-11-28 13:19:04,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 13:19:04,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 13:19:04,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2018-11-28 13:19:04,854 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-28 13:19:04,855 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:19:04,855 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-28 13:19:04,855 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:19:04,855 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 6 letters. Loop has 6 letters. [2018-11-28 13:19:04,856 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:19:04,856 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 36 transitions. [2018-11-28 13:19:04,858 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 13:19:04,860 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2018-11-28 13:19:04,861 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 13:19:04,861 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 13:19:04,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 13:19:04,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 13:19:04,861 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 13:19:04,862 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 13:19:04,862 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 13:19:04,862 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 13:19:04,862 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 13:19:04,862 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 13:19:04,862 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 13:19:04,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 01:19:04 BoogieIcfgContainer [2018-11-28 13:19:04,866 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 13:19:04,866 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 13:19:04,866 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 13:19:04,867 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 13:19:04,867 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:19:03" (3/4) ... [2018-11-28 13:19:04,869 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 13:19:04,869 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 13:19:04,870 INFO L168 Benchmark]: Toolchain (without parser) took 1417.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 958.7 MB in the beginning and 954.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 150.3 MB. Max. memory is 11.5 GB. [2018-11-28 13:19:04,871 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:19:04,872 INFO L168 Benchmark]: CACSL2BoogieTranslator took 142.18 ms. Allocated memory is still 1.0 GB. Free memory was 958.7 MB in the beginning and 947.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 13:19:04,872 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.55 ms. Allocated memory is still 1.0 GB. Free memory is still 947.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:19:04,872 INFO L168 Benchmark]: Boogie Preprocessor took 48.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 947.9 MB in the beginning and 1.1 GB in the end (delta: -191.1 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-11-28 13:19:04,873 INFO L168 Benchmark]: RCFGBuilder took 134.27 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: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2018-11-28 13:19:04,874 INFO L168 Benchmark]: BuchiAutomizer took 1064.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 954.7 MB in the end (delta: 170.5 MB). Peak memory consumption was 170.5 MB. Max. memory is 11.5 GB. [2018-11-28 13:19:04,874 INFO L168 Benchmark]: Witness Printer took 3.06 ms. Allocated memory is still 1.2 GB. Free memory is still 954.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:19:04,877 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 142.18 ms. Allocated memory is still 1.0 GB. Free memory was 958.7 MB in the beginning and 947.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 22.55 ms. Allocated memory is still 1.0 GB. Free memory is still 947.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 947.9 MB in the beginning and 1.1 GB in the end (delta: -191.1 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 134.27 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: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1064.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 954.7 MB in the end (delta: 170.5 MB). Peak memory consumption was 170.5 MB. Max. memory is 11.5 GB. * Witness Printer took 3.06 ms. Allocated memory is still 1.2 GB. Free memory is still 954.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[s] + -1 * s and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 11 SDtfs, 13 SDslu, 3 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital85 mio100 ax100 hnf100 lsp92 ukn63 mio100 lsp54 div100 bol100 ite100 ukn100 eq166 hnf91 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 12ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...