./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-15/cstrchr_reverse_alloca_true-termination.c.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_881ad37c-c91e-4a38-9a7e-c1afb9eb0a69/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_881ad37c-c91e-4a38-9a7e-c1afb9eb0a69/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_881ad37c-c91e-4a38-9a7e-c1afb9eb0a69/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_881ad37c-c91e-4a38-9a7e-c1afb9eb0a69/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrchr_reverse_alloca_true-termination.c.i -s /tmp/vcloud-vcloud-master/worker/working_dir_881ad37c-c91e-4a38-9a7e-c1afb9eb0a69/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_881ad37c-c91e-4a38-9a7e-c1afb9eb0a69/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 a273450068a0d5a7644f3536efd5c3c568bd1daf ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 06:06:02,727 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 06:06:02,729 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 06:06:02,738 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 06:06:02,738 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 06:06:02,739 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 06:06:02,740 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 06:06:02,741 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 06:06:02,742 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 06:06:02,743 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 06:06:02,744 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 06:06:02,745 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 06:06:02,745 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 06:06:02,746 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 06:06:02,747 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 06:06:02,748 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 06:06:02,748 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 06:06:02,750 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 06:06:02,751 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 06:06:02,752 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 06:06:02,753 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 06:06:02,754 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 06:06:02,756 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 06:06:02,756 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 06:06:02,756 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 06:06:02,757 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 06:06:02,757 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 06:06:02,758 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 06:06:02,758 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 06:06:02,759 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 06:06:02,760 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 06:06:02,760 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 06:06:02,761 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 06:06:02,761 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 06:06:02,761 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 06:06:02,762 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 06:06:02,762 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_881ad37c-c91e-4a38-9a7e-c1afb9eb0a69/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-10-27 06:06:02,774 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 06:06:02,775 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 06:06:02,776 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 06:06:02,776 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 06:06:02,776 INFO L133 SettingsManager]: * Use SBE=true [2018-10-27 06:06:02,776 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-10-27 06:06:02,776 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-10-27 06:06:02,776 INFO L133 SettingsManager]: * Use old map elimination=false [2018-10-27 06:06:02,777 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-10-27 06:06:02,777 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-10-27 06:06:02,777 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-10-27 06:06:02,777 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 06:06:02,777 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 06:06:02,777 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 06:06:02,777 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 06:06:02,778 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-10-27 06:06:02,778 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-10-27 06:06:02,778 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-10-27 06:06:02,778 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 06:06:02,778 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-10-27 06:06:02,778 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-10-27 06:06:02,778 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 06:06:02,779 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 06:06:02,779 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-10-27 06:06:02,779 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 06:06:02,779 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-27 06:06:02,781 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-10-27 06:06:02,782 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-27 06:06:02,782 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_881ad37c-c91e-4a38-9a7e-c1afb9eb0a69/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 -> a273450068a0d5a7644f3536efd5c3c568bd1daf [2018-10-27 06:06:02,807 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 06:06:02,817 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 06:06:02,820 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 06:06:02,821 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 06:06:02,821 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 06:06:02,822 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_881ad37c-c91e-4a38-9a7e-c1afb9eb0a69/bin-2019/uautomizer/../../sv-benchmarks/c/termination-15/cstrchr_reverse_alloca_true-termination.c.i [2018-10-27 06:06:02,867 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_881ad37c-c91e-4a38-9a7e-c1afb9eb0a69/bin-2019/uautomizer/data/c57c46927/f379d7747bc040fa887acc2042f16430/FLAGf49eab7d2 [2018-10-27 06:06:03,298 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 06:06:03,298 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_881ad37c-c91e-4a38-9a7e-c1afb9eb0a69/sv-benchmarks/c/termination-15/cstrchr_reverse_alloca_true-termination.c.i [2018-10-27 06:06:03,307 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_881ad37c-c91e-4a38-9a7e-c1afb9eb0a69/bin-2019/uautomizer/data/c57c46927/f379d7747bc040fa887acc2042f16430/FLAGf49eab7d2 [2018-10-27 06:06:03,322 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_881ad37c-c91e-4a38-9a7e-c1afb9eb0a69/bin-2019/uautomizer/data/c57c46927/f379d7747bc040fa887acc2042f16430 [2018-10-27 06:06:03,325 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 06:06:03,326 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 06:06:03,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 06:06:03,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 06:06:03,336 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 06:06:03,337 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:06:03" (1/1) ... [2018-10-27 06:06:03,339 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42b298a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:06:03, skipping insertion in model container [2018-10-27 06:06:03,339 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:06:03" (1/1) ... [2018-10-27 06:06:03,348 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 06:06:03,391 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 06:06:03,653 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 06:06:03,660 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 06:06:03,693 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 06:06:03,741 INFO L193 MainTranslator]: Completed translation [2018-10-27 06:06:03,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:06:03 WrapperNode [2018-10-27 06:06:03,742 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 06:06:03,742 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 06:06:03,743 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 06:06:03,743 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 06:06:03,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:06:03" (1/1) ... [2018-10-27 06:06:03,761 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:06:03" (1/1) ... [2018-10-27 06:06:03,857 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 06:06:03,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 06:06:03,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 06:06:03,857 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 06:06:03,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:06:03" (1/1) ... [2018-10-27 06:06:03,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:06:03" (1/1) ... [2018-10-27 06:06:03,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:06:03" (1/1) ... [2018-10-27 06:06:03,868 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:06:03" (1/1) ... [2018-10-27 06:06:03,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:06:03" (1/1) ... [2018-10-27 06:06:03,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:06:03" (1/1) ... [2018-10-27 06:06:03,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:06:03" (1/1) ... [2018-10-27 06:06:03,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 06:06:03,878 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 06:06:03,878 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 06:06:03,878 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 06:06:03,879 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:06:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_881ad37c-c91e-4a38-9a7e-c1afb9eb0a69/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 [2018-10-27 06:06:03,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-10-27 06:06:03,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-10-27 06:06:03,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 06:06:03,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 06:06:04,420 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 06:06:04,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:06:04 BoogieIcfgContainer [2018-10-27 06:06:04,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 06:06:04,421 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-10-27 06:06:04,422 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-10-27 06:06:04,425 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-10-27 06:06:04,426 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:06:04,426 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.10 06:06:03" (1/3) ... [2018-10-27 06:06:04,427 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5f9eee83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.10 06:06:04, skipping insertion in model container [2018-10-27 06:06:04,428 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:06:04,428 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:06:03" (2/3) ... [2018-10-27 06:06:04,428 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5f9eee83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.10 06:06:04, skipping insertion in model container [2018-10-27 06:06:04,428 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:06:04,428 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:06:04" (3/3) ... [2018-10-27 06:06:04,430 INFO L375 chiAutomizerObserver]: Analyzing ICFG cstrchr_reverse_alloca_true-termination.c.i [2018-10-27 06:06:04,485 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-27 06:06:04,486 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-10-27 06:06:04,486 INFO L375 BuchiCegarLoop]: Hoare is false [2018-10-27 06:06:04,486 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-10-27 06:06:04,486 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 06:06:04,486 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 06:06:04,486 INFO L379 BuchiCegarLoop]: Difference is false [2018-10-27 06:06:04,487 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 06:06:04,487 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-10-27 06:06:04,501 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states. [2018-10-27 06:06:04,526 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2018-10-27 06:06:04,526 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:06:04,526 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:06:04,533 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-10-27 06:06:04,534 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-10-27 06:06:04,534 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-10-27 06:06:04,534 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states. [2018-10-27 06:06:04,539 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2018-10-27 06:06:04,540 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:06:04,540 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:06:04,540 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-10-27 06:06:04,540 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-10-27 06:06:04,548 INFO L793 eck$LassoCheckResult]: Stem: 15#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 12#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet211, main_#t~malloc212.base, main_#t~malloc212.offset, main_#t~nondet213, main_#t~ret214.base, main_#t~ret214.offset, main_~length~0, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet211;havoc main_#t~nondet211; 13#L372true assume !(main_~length~0 < 1); 16#L372-2true #Ultimate.alloc_old_#length, #Ultimate.alloc_old_#valid := #length, #valid;assume { :begin_inline_#Ultimate.alloc } true;#Ultimate.alloc_~size := main_~length~0 * 1;havoc #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;havoc #valid, #length;assume #Ultimate.alloc_old_#valid[#Ultimate.alloc_#res.base] == 0;assume #valid == #Ultimate.alloc_old_#valid[#Ultimate.alloc_#res.base := 1];assume #Ultimate.alloc_#res.offset == 0;assume #Ultimate.alloc_#res.base != 0;assume #length == #Ultimate.alloc_old_#length[#Ultimate.alloc_#res.base := #Ultimate.alloc_~size];main_#t~malloc212.base, main_#t~malloc212.offset := #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;assume { :end_inline_#Ultimate.alloc } true;main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc212.base, main_#t~malloc212.offset; 5#L376true SUMMARY for call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset + 0, 1); srcloc: L376 8#L376-1true main_~nondetString~0.base, main_~nondetString~0.offset := main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length~0 - 1) * 1;assume { :begin_inline_cstrchr } true;cstrchr_#in~s.base, cstrchr_#in~s.offset, cstrchr_#in~c := main_~nondetString~0.base, main_~nondetString~0.offset, main_#t~nondet213;havoc cstrchr_#res.base, cstrchr_#res.offset;havoc cstrchr_#t~post208.base, cstrchr_#t~post208.offset, cstrchr_#t~mem205, cstrchr_#t~mem206, cstrchr_#t~short207, cstrchr_#t~mem209, cstrchr_#t~ite210.base, cstrchr_#t~ite210.offset, cstrchr_~s.base, cstrchr_~s.offset, cstrchr_~c;cstrchr_~s.base, cstrchr_~s.offset := cstrchr_#in~s.base, cstrchr_#in~s.offset;cstrchr_~c := cstrchr_#in~c; 22#L366-9true [2018-10-27 06:06:04,548 INFO L795 eck$LassoCheckResult]: Loop: 22#L366-9true assume true; 6#L366-1true SUMMARY for call cstrchr_#t~mem205 := read~int(cstrchr_~s.base, cstrchr_~s.offset, 1); srcloc: L366-1 9#L366-2true cstrchr_#t~short207 := cstrchr_#t~mem205 != 0; 10#L366-3true assume !cstrchr_#t~short207; 17#L366-7true assume !!cstrchr_#t~short207;havoc cstrchr_#t~short207;havoc cstrchr_#t~mem205;havoc cstrchr_#t~mem206;cstrchr_#t~post208.base, cstrchr_#t~post208.offset := cstrchr_~s.base, cstrchr_~s.offset;cstrchr_~s.base, cstrchr_~s.offset := cstrchr_#t~post208.base, cstrchr_#t~post208.offset - 1;havoc cstrchr_#t~post208.base, cstrchr_#t~post208.offset; 22#L366-9true [2018-10-27 06:06:04,554 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:06:04,555 INFO L82 PathProgramCache]: Analyzing trace with hash 889568230, now seen corresponding path program 1 times [2018-10-27 06:06:04,558 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:06:04,558 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:06:04,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:06:04,608 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:06:04,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:06:04,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:06:04,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:06:04,702 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:06:04,705 INFO L82 PathProgramCache]: Analyzing trace with hash 43006517, now seen corresponding path program 1 times [2018-10-27 06:06:04,705 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:06:04,705 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:06:04,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:06:04,707 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:06:04,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:06:04,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:06:04,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:06:04,808 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 06:06:04,808 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 06:06:04,812 INFO L810 eck$LassoCheckResult]: loop already infeasible [2018-10-27 06:06:04,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 06:06:04,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 06:06:04,831 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2018-10-27 06:06:04,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:06:04,893 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2018-10-27 06:06:04,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 06:06:04,896 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 24 transitions. [2018-10-27 06:06:04,897 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2018-10-27 06:06:04,899 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 13 states and 14 transitions. [2018-10-27 06:06:04,900 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2018-10-27 06:06:04,900 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2018-10-27 06:06:04,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 14 transitions. [2018-10-27 06:06:04,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-10-27 06:06:04,901 INFO L705 BuchiCegarLoop]: Abstraction has 13 states and 14 transitions. [2018-10-27 06:06:04,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 14 transitions. [2018-10-27 06:06:04,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-10-27 06:06:04,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-10-27 06:06:04,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-10-27 06:06:04,922 INFO L728 BuchiCegarLoop]: Abstraction has 13 states and 14 transitions. [2018-10-27 06:06:04,922 INFO L608 BuchiCegarLoop]: Abstraction has 13 states and 14 transitions. [2018-10-27 06:06:04,922 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-10-27 06:06:04,922 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 14 transitions. [2018-10-27 06:06:04,923 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2018-10-27 06:06:04,923 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:06:04,923 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:06:04,924 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-10-27 06:06:04,924 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:06:04,924 INFO L793 eck$LassoCheckResult]: Stem: 62#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 58#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet211, main_#t~malloc212.base, main_#t~malloc212.offset, main_#t~nondet213, main_#t~ret214.base, main_#t~ret214.offset, main_~length~0, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet211;havoc main_#t~nondet211; 59#L372 assume !(main_~length~0 < 1); 60#L372-2 #Ultimate.alloc_old_#length, #Ultimate.alloc_old_#valid := #length, #valid;assume { :begin_inline_#Ultimate.alloc } true;#Ultimate.alloc_~size := main_~length~0 * 1;havoc #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;havoc #valid, #length;assume #Ultimate.alloc_old_#valid[#Ultimate.alloc_#res.base] == 0;assume #valid == #Ultimate.alloc_old_#valid[#Ultimate.alloc_#res.base := 1];assume #Ultimate.alloc_#res.offset == 0;assume #Ultimate.alloc_#res.base != 0;assume #length == #Ultimate.alloc_old_#length[#Ultimate.alloc_#res.base := #Ultimate.alloc_~size];main_#t~malloc212.base, main_#t~malloc212.offset := #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;assume { :end_inline_#Ultimate.alloc } true;main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc212.base, main_#t~malloc212.offset; 50#L376 SUMMARY for call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset + 0, 1); srcloc: L376 51#L376-1 main_~nondetString~0.base, main_~nondetString~0.offset := main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length~0 - 1) * 1;assume { :begin_inline_cstrchr } true;cstrchr_#in~s.base, cstrchr_#in~s.offset, cstrchr_#in~c := main_~nondetString~0.base, main_~nondetString~0.offset, main_#t~nondet213;havoc cstrchr_#res.base, cstrchr_#res.offset;havoc cstrchr_#t~post208.base, cstrchr_#t~post208.offset, cstrchr_#t~mem205, cstrchr_#t~mem206, cstrchr_#t~short207, cstrchr_#t~mem209, cstrchr_#t~ite210.base, cstrchr_#t~ite210.offset, cstrchr_~s.base, cstrchr_~s.offset, cstrchr_~c;cstrchr_~s.base, cstrchr_~s.offset := cstrchr_#in~s.base, cstrchr_#in~s.offset;cstrchr_~c := cstrchr_#in~c; 54#L366-9 [2018-10-27 06:06:04,925 INFO L795 eck$LassoCheckResult]: Loop: 54#L366-9 assume true; 52#L366-1 SUMMARY for call cstrchr_#t~mem205 := read~int(cstrchr_~s.base, cstrchr_~s.offset, 1); srcloc: L366-1 53#L366-2 cstrchr_#t~short207 := cstrchr_#t~mem205 != 0; 55#L366-3 assume cstrchr_#t~short207; 56#L366-4 SUMMARY for call cstrchr_#t~mem206 := read~int(cstrchr_~s.base, cstrchr_~s.offset, 1); srcloc: L366-4 57#L366-5 cstrchr_#t~short207 := cstrchr_#t~mem206 != (if cstrchr_~c % 256 <= 127 then cstrchr_~c % 256 else cstrchr_~c % 256 - 256); 61#L366-7 assume !!cstrchr_#t~short207;havoc cstrchr_#t~short207;havoc cstrchr_#t~mem205;havoc cstrchr_#t~mem206;cstrchr_#t~post208.base, cstrchr_#t~post208.offset := cstrchr_~s.base, cstrchr_~s.offset;cstrchr_~s.base, cstrchr_~s.offset := cstrchr_#t~post208.base, cstrchr_#t~post208.offset - 1;havoc cstrchr_#t~post208.base, cstrchr_#t~post208.offset; 54#L366-9 [2018-10-27 06:06:04,925 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:06:04,925 INFO L82 PathProgramCache]: Analyzing trace with hash 889568230, now seen corresponding path program 2 times [2018-10-27 06:06:04,925 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:06:04,925 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:06:04,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:06:04,926 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:06:04,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:06:04,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:06:04,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:06:04,947 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:06:04,947 INFO L82 PathProgramCache]: Analyzing trace with hash -1620537192, now seen corresponding path program 1 times [2018-10-27 06:06:04,947 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:06:04,948 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:06:04,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:06:04,948 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:06:04,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:06:04,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:06:04,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:06:04,965 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:06:04,965 INFO L82 PathProgramCache]: Analyzing trace with hash 318216467, now seen corresponding path program 1 times [2018-10-27 06:06:04,965 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:06:04,965 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:06:04,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:06:04,966 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:06:04,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:06:04,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:06:04,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:06:05,321 WARN L179 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2018-10-27 06:06:05,537 WARN L179 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 36 [2018-10-27 06:06:06,081 WARN L179 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2018-10-27 06:06:06,176 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:06:06,176 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:06:06,177 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:06:06,177 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:06:06,177 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:06:06,177 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:06:06,177 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:06:06,177 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:06:06,178 INFO L131 ssoRankerPreferences]: Filename of dumped script: cstrchr_reverse_alloca_true-termination.c.i_Iteration2_Lasso [2018-10-27 06:06:06,178 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:06:06,178 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:06:06,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:06:06,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:06:06,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:06:06,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:06:06,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:06:06,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:06:06,265 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:06:06,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:06:06,271 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:06:06,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:06:06,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:06:06,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:06:06,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:06:06,444 WARN L179 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2018-10-27 06:06:06,611 WARN L179 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2018-10-27 06:06:06,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:06:06,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:06:06,615 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:06:06,617 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:06:07,216 WARN L179 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2018-10-27 06:06:07,230 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:06:07,238 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:06:07,240 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 [2018-10-27 06:06:07,242 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:06:07,242 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:06:07,242 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:06:07,243 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:06:07,243 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:06:07,244 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:06:07,244 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:06:07,247 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:06:07,247 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 [2018-10-27 06:06:07,248 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:06:07,248 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:06:07,248 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:06:07,248 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:06:07,248 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:06:07,249 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:06:07,249 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:06:07,249 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:06:07,250 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 [2018-10-27 06:06:07,250 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:06:07,250 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:06:07,251 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:06:07,251 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:06:07,255 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:06:07,255 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:06:07,258 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:06:07,259 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 [2018-10-27 06:06:07,263 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:06:07,264 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:06:07,264 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:06:07,264 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:06:07,264 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:06:07,265 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:06:07,265 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:06:07,265 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:06:07,266 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 [2018-10-27 06:06:07,266 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:06:07,266 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:06:07,266 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:06:07,266 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:06:07,267 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:06:07,267 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:06:07,267 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:06:07,270 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:06:07,271 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 [2018-10-27 06:06:07,271 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:06:07,271 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:06:07,273 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:06:07,273 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:06:07,273 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:06:07,274 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:06:07,274 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:06:07,275 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:06:07,275 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 [2018-10-27 06:06:07,276 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:06:07,276 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:06:07,276 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:06:07,276 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:06:07,276 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:06:07,276 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:06:07,277 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:06:07,277 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:06:07,277 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 [2018-10-27 06:06:07,278 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:06:07,278 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:06:07,278 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:06:07,278 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:06:07,278 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:06:07,279 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:06:07,279 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:06:07,280 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:06:07,280 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 [2018-10-27 06:06:07,281 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:06:07,281 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:06:07,281 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:06:07,281 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:06:07,281 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:06:07,281 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:06:07,282 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:06:07,282 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:06:07,282 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 [2018-10-27 06:06:07,283 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:06:07,283 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:06:07,283 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:06:07,283 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:06:07,292 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:06:07,292 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:06:07,295 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:06:07,296 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 [2018-10-27 06:06:07,296 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:06:07,296 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:06:07,297 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:06:07,297 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:06:07,297 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:06:07,297 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:06:07,297 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:06:07,300 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:06:07,300 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 [2018-10-27 06:06:07,301 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:06:07,301 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:06:07,301 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:06:07,301 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:06:07,301 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:06:07,302 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:06:07,302 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:06:07,302 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:06:07,303 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 [2018-10-27 06:06:07,303 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:06:07,306 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:06:07,306 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:06:07,307 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:06:07,311 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:06:07,311 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:06:07,363 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:06:07,389 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-10-27 06:06:07,389 INFO L444 ModelExtractionUtils]: 28 out of 31 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-10-27 06:06:07,391 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:06:07,401 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-10-27 06:06:07,401 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:06:07,402 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrchr_~s.offset) = 2*ULTIMATE.start_cstrchr_~s.offset + 1 Supporting invariants [] [2018-10-27 06:06:07,444 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2018-10-27 06:06:07,490 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:06:07,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:06:07,505 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:06:07,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:06:07,544 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:06:07,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:06:07,574 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 [2018-10-27 06:06:07,575 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 14 transitions. cyclomatic complexity: 2 Second operand 4 states. [2018-10-27 06:06:07,611 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 14 transitions. cyclomatic complexity: 2. Second operand 4 states. Result 20 states and 22 transitions. Complement of second has 6 states. [2018-10-27 06:06:07,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-10-27 06:06:07,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-10-27 06:06:07,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2018-10-27 06:06:07,614 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 6 letters. Loop has 7 letters. [2018-10-27 06:06:07,615 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:06:07,615 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 13 letters. Loop has 7 letters. [2018-10-27 06:06:07,615 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:06:07,615 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 6 letters. Loop has 14 letters. [2018-10-27 06:06:07,615 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:06:07,615 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 22 transitions. [2018-10-27 06:06:07,616 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-10-27 06:06:07,616 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 0 states and 0 transitions. [2018-10-27 06:06:07,616 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-10-27 06:06:07,617 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-10-27 06:06:07,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-10-27 06:06:07,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-10-27 06:06:07,617 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:06:07,617 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:06:07,617 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:06:07,617 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-10-27 06:06:07,617 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-10-27 06:06:07,617 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-10-27 06:06:07,617 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-10-27 06:06:07,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.10 06:06:07 BoogieIcfgContainer [2018-10-27 06:06:07,622 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-10-27 06:06:07,622 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 06:06:07,622 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 06:06:07,622 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 06:06:07,623 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:06:04" (3/4) ... [2018-10-27 06:06:07,625 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-27 06:06:07,625 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 06:06:07,626 INFO L168 Benchmark]: Toolchain (without parser) took 4300.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 958.1 MB in the beginning and 1.1 GB in the end (delta: -134.4 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. [2018-10-27 06:06:07,626 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 06:06:07,627 INFO L168 Benchmark]: CACSL2BoogieTranslator took 414.91 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 931.1 MB in the end (delta: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. [2018-10-27 06:06:07,627 INFO L168 Benchmark]: Boogie Procedure Inliner took 114.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 931.1 MB in the beginning and 1.1 GB in the end (delta: -216.7 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2018-10-27 06:06:07,628 INFO L168 Benchmark]: Boogie Preprocessor took 20.61 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 06:06:07,628 INFO L168 Benchmark]: RCFGBuilder took 543.12 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-10-27 06:06:07,629 INFO L168 Benchmark]: BuchiAutomizer took 3200.51 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: 30.3 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. [2018-10-27 06:06:07,629 INFO L168 Benchmark]: Witness Printer took 3.11 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 06:06:07,632 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 414.91 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 931.1 MB in the end (delta: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 114.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 931.1 MB in the beginning and 1.1 GB in the end (delta: -216.7 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.61 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 543.12 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3200.51 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: 30.3 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. * Witness Printer took 3.11 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * s + 1 and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 13 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 33 SDtfs, 11 SDslu, 21 SDs, 0 SdLazy, 12 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital190 mio100 ax100 hnf98 lsp98 ukn85 mio100 lsp32 div136 bol100 ite100 ukn100 eq153 hnf83 smp100 dnf681 smp27 tf100 neg95 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 8ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...