./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/cstrcat_reverse_alloca_true-termination.c.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ef47d624-cc39-497d-a586-ccb9b9772e43/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ef47d624-cc39-497d-a586-ccb9b9772e43/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ef47d624-cc39-497d-a586-ccb9b9772e43/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ef47d624-cc39-497d-a586-ccb9b9772e43/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrcat_reverse_alloca_true-termination.c.i -s /tmp/vcloud-vcloud-master/worker/working_dir_ef47d624-cc39-497d-a586-ccb9b9772e43/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ef47d624-cc39-497d-a586-ccb9b9772e43/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 79c8f3e75568b724086e7997d923ad8ab07e6657 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-01 08:29:40,073 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 08:29:40,074 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 08:29:40,080 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 08:29:40,080 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 08:29:40,081 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 08:29:40,081 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 08:29:40,082 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 08:29:40,083 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 08:29:40,083 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 08:29:40,084 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 08:29:40,084 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 08:29:40,084 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 08:29:40,085 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 08:29:40,085 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 08:29:40,086 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 08:29:40,086 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 08:29:40,087 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 08:29:40,088 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 08:29:40,088 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 08:29:40,089 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 08:29:40,090 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 08:29:40,091 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 08:29:40,091 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 08:29:40,091 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 08:29:40,091 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 08:29:40,092 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 08:29:40,092 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 08:29:40,093 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 08:29:40,093 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 08:29:40,093 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 08:29:40,093 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 08:29:40,094 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 08:29:40,094 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 08:29:40,094 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 08:29:40,094 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 08:29:40,095 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ef47d624-cc39-497d-a586-ccb9b9772e43/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-12-01 08:29:40,102 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 08:29:40,102 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 08:29:40,103 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 08:29:40,103 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 08:29:40,103 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 08:29:40,103 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-01 08:29:40,103 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-01 08:29:40,103 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-01 08:29:40,103 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-01 08:29:40,103 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-01 08:29:40,103 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-01 08:29:40,104 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 08:29:40,104 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-01 08:29:40,104 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 08:29:40,104 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 08:29:40,104 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-01 08:29:40,104 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-01 08:29:40,104 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-01 08:29:40,104 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 08:29:40,104 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-01 08:29:40,104 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 08:29:40,104 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-01 08:29:40,104 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 08:29:40,105 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 08:29:40,105 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-01 08:29:40,105 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 08:29:40,105 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-01 08:29:40,105 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-01 08:29:40,105 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-01 08:29:40,105 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_ef47d624-cc39-497d-a586-ccb9b9772e43/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 -> 79c8f3e75568b724086e7997d923ad8ab07e6657 [2018-12-01 08:29:40,122 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 08:29:40,128 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 08:29:40,130 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 08:29:40,131 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 08:29:40,131 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 08:29:40,131 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ef47d624-cc39-497d-a586-ccb9b9772e43/bin-2019/uautomizer/../../sv-benchmarks/c/termination-15/cstrcat_reverse_alloca_true-termination.c.i [2018-12-01 08:29:40,164 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ef47d624-cc39-497d-a586-ccb9b9772e43/bin-2019/uautomizer/data/385dbc795/558b6736c88a4e95829204052161701b/FLAG6a9f3a03f [2018-12-01 08:29:40,635 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 08:29:40,636 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ef47d624-cc39-497d-a586-ccb9b9772e43/sv-benchmarks/c/termination-15/cstrcat_reverse_alloca_true-termination.c.i [2018-12-01 08:29:40,640 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ef47d624-cc39-497d-a586-ccb9b9772e43/bin-2019/uautomizer/data/385dbc795/558b6736c88a4e95829204052161701b/FLAG6a9f3a03f [2018-12-01 08:29:40,650 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ef47d624-cc39-497d-a586-ccb9b9772e43/bin-2019/uautomizer/data/385dbc795/558b6736c88a4e95829204052161701b [2018-12-01 08:29:40,653 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 08:29:40,654 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 08:29:40,654 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 08:29:40,654 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 08:29:40,656 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 08:29:40,657 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 08:29:40" (1/1) ... [2018-12-01 08:29:40,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@198b87e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:29:40, skipping insertion in model container [2018-12-01 08:29:40,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 08:29:40" (1/1) ... [2018-12-01 08:29:40,664 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 08:29:40,683 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 08:29:40,875 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 08:29:40,885 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 08:29:40,966 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 08:29:41,004 INFO L195 MainTranslator]: Completed translation [2018-12-01 08:29:41,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:29:41 WrapperNode [2018-12-01 08:29:41,005 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 08:29:41,005 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 08:29:41,005 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 08:29:41,005 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 08:29:41,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:29:41" (1/1) ... [2018-12-01 08:29:41,019 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:29:41" (1/1) ... [2018-12-01 08:29:41,032 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 08:29:41,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 08:29:41,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 08:29:41,032 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 08:29:41,037 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:29:41" (1/1) ... [2018-12-01 08:29:41,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:29:41" (1/1) ... [2018-12-01 08:29:41,039 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:29:41" (1/1) ... [2018-12-01 08:29:41,039 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:29:41" (1/1) ... [2018-12-01 08:29:41,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:29:41" (1/1) ... [2018-12-01 08:29:41,045 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:29:41" (1/1) ... [2018-12-01 08:29:41,046 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:29:41" (1/1) ... [2018-12-01 08:29:41,047 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 08:29:41,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 08:29:41,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 08:29:41,047 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 08:29:41,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:29:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ef47d624-cc39-497d-a586-ccb9b9772e43/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 [2018-12-01 08:29:41,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-01 08:29:41,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-01 08:29:41,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-01 08:29:41,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-01 08:29:41,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 08:29:41,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 08:29:41,222 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 08:29:41,222 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-01 08:29:41,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 08:29:41 BoogieIcfgContainer [2018-12-01 08:29:41,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 08:29:41,223 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-01 08:29:41,223 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-01 08:29:41,226 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-01 08:29:41,227 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 08:29:41,227 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 08:29:40" (1/3) ... [2018-12-01 08:29:41,228 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4957f12d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 08:29:41, skipping insertion in model container [2018-12-01 08:29:41,228 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 08:29:41,228 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:29:41" (2/3) ... [2018-12-01 08:29:41,228 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4957f12d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 08:29:41, skipping insertion in model container [2018-12-01 08:29:41,228 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 08:29:41,228 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 08:29:41" (3/3) ... [2018-12-01 08:29:41,230 INFO L375 chiAutomizerObserver]: Analyzing ICFG cstrcat_reverse_alloca_true-termination.c.i [2018-12-01 08:29:41,265 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 08:29:41,265 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-01 08:29:41,265 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-01 08:29:41,265 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-01 08:29:41,265 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 08:29:41,265 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 08:29:41,266 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-01 08:29:41,266 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 08:29:41,266 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-01 08:29:41,274 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2018-12-01 08:29:41,289 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-12-01 08:29:41,289 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 08:29:41,289 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 08:29:41,294 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-12-01 08:29:41,295 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-01 08:29:41,295 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-01 08:29:41,295 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2018-12-01 08:29:41,296 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-12-01 08:29:41,296 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 08:29:41,296 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 08:29:41,297 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-12-01 08:29:41,297 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-01 08:29:41,304 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 9#L-1true havoc main_#res;havoc main_#t~nondet210, main_#t~nondet211, main_#t~nondet212, main_#t~malloc213.base, main_#t~malloc213.offset, main_#t~malloc214.base, main_#t~malloc214.offset, main_#t~ret215.base, main_#t~ret215.offset, main_~length1~0, main_~length2~0, main_~length3~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet210;havoc main_#t~nondet210;main_~length2~0 := main_#t~nondet211;havoc main_#t~nondet211;main_~length3~0 := main_#t~nondet212;havoc main_#t~nondet212; 3#L377true assume !(main_~length1~0 < 1); 6#L377-2true assume !(main_~length2~0 < 2); 15#L380-1true assume !(main_~length3~0 < 1); 10#L383-1true assume !(main_~length2~0 - main_~length3~0 < main_~length1~0 || main_~length3~0 > main_~length2~0);call main_#t~malloc213.base, main_#t~malloc213.offset := #Ultimate.alloc(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc213.base, main_#t~malloc213.offset;call main_#t~malloc214.base, main_#t~malloc214.offset := #Ultimate.alloc(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc214.base, main_#t~malloc214.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset, 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - main_~length3~0), 1);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1);cstrcat_#in~s1.base, cstrcat_#in~s1.offset, cstrcat_#in~s2.base, cstrcat_#in~s2.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrcat_#res.base, cstrcat_#res.offset;havoc cstrcat_#t~post206.base, cstrcat_#t~post206.offset, cstrcat_#t~mem205, cstrcat_#t~post207.base, cstrcat_#t~post207.offset, cstrcat_#t~post208.base, cstrcat_#t~post208.offset, cstrcat_#t~mem209, cstrcat_~s1.base, cstrcat_~s1.offset, cstrcat_~s2.base, cstrcat_~s2.offset, cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s1.base, cstrcat_~s1.offset := cstrcat_#in~s1.base, cstrcat_#in~s1.offset;cstrcat_~s2.base, cstrcat_~s2.offset := cstrcat_#in~s2.base, cstrcat_#in~s2.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_~s1.base, cstrcat_~s1.offset; 7#L367-3true [2018-12-01 08:29:41,304 INFO L796 eck$LassoCheckResult]: Loop: 7#L367-3true call cstrcat_#t~mem205 := read~int(cstrcat_~s~0.base, cstrcat_~s~0.offset, 1); 4#L367-1true assume !!(0 != cstrcat_#t~mem205);havoc cstrcat_#t~mem205;cstrcat_#t~post206.base, cstrcat_#t~post206.offset := cstrcat_~s~0.base, cstrcat_~s~0.offset;cstrcat_~s~0.base, cstrcat_~s~0.offset := cstrcat_#t~post206.base, cstrcat_#t~post206.offset - 1;havoc cstrcat_#t~post206.base, cstrcat_#t~post206.offset; 7#L367-3true [2018-12-01 08:29:41,309 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:29:41,309 INFO L82 PathProgramCache]: Analyzing trace with hash 889572367, now seen corresponding path program 1 times [2018-12-01 08:29:41,311 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:29:41,312 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:29:41,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:29:41,349 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:29:41,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:29:41,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:29:41,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:29:41,407 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:29:41,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1926, now seen corresponding path program 1 times [2018-12-01 08:29:41,407 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:29:41,407 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:29:41,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:29:41,408 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:29:41,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:29:41,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:29:41,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:29:41,414 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:29:41,414 INFO L82 PathProgramCache]: Analyzing trace with hash 180553748, now seen corresponding path program 1 times [2018-12-01 08:29:41,414 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 08:29:41,414 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 08:29:41,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:29:41,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 08:29:41,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 08:29:41,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:29:41,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 08:29:41,697 WARN L180 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 95 [2018-12-01 08:29:41,765 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 08:29:41,765 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 08:29:41,765 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 08:29:41,765 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 08:29:41,766 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 08:29:41,766 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 08:29:41,766 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 08:29:41,766 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 08:29:41,766 INFO L131 ssoRankerPreferences]: Filename of dumped script: cstrcat_reverse_alloca_true-termination.c.i_Iteration1_Lasso [2018-12-01 08:29:41,766 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 08:29:41,766 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 08:29:41,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:29:41,784 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:29:41,787 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:29:41,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:29:41,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:29:41,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:29:41,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:29:41,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:29:41,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:29:41,797 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:29:41,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:29:41,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:29:41,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:29:41,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:29:41,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:29:41,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:29:41,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:29:41,961 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2018-12-01 08:29:41,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:29:41,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 08:29:42,244 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 08:29:42,247 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 08:29:42,248 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 [2018-12-01 08:29:42,249 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:29:42,249 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:29:42,249 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:29:42,250 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:29:42,250 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:29:42,251 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:29:42,251 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:29:42,253 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:29:42,253 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 [2018-12-01 08:29:42,254 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:29:42,254 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:29:42,254 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:29:42,254 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:29:42,255 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 08:29:42,256 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 08:29:42,258 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:29:42,258 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 [2018-12-01 08:29:42,258 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:29:42,258 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:29:42,259 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:29:42,259 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:29:42,259 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:29:42,259 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:29:42,259 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:29:42,260 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:29:42,260 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 [2018-12-01 08:29:42,260 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:29:42,260 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:29:42,260 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:29:42,260 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:29:42,261 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:29:42,261 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:29:42,261 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:29:42,261 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:29:42,261 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 [2018-12-01 08:29:42,262 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:29:42,262 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:29:42,262 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:29:42,262 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:29:42,263 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 08:29:42,263 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 08:29:42,264 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:29:42,265 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 [2018-12-01 08:29:42,265 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:29:42,265 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:29:42,265 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:29:42,265 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:29:42,265 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:29:42,266 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:29:42,266 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:29:42,266 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:29:42,267 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 [2018-12-01 08:29:42,267 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:29:42,267 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:29:42,267 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:29:42,267 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:29:42,267 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:29:42,267 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:29:42,267 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:29:42,268 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:29:42,268 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 [2018-12-01 08:29:42,268 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:29:42,268 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:29:42,268 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:29:42,269 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:29:42,269 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:29:42,269 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:29:42,269 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:29:42,269 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:29:42,270 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 [2018-12-01 08:29:42,270 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:29:42,270 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:29:42,270 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:29:42,270 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:29:42,270 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:29:42,270 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:29:42,270 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:29:42,271 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:29:42,271 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 [2018-12-01 08:29:42,271 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:29:42,271 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:29:42,271 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:29:42,272 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:29:42,272 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:29:42,272 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:29:42,272 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:29:42,272 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:29:42,273 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 [2018-12-01 08:29:42,273 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:29:42,273 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:29:42,273 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:29:42,273 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:29:42,273 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:29:42,273 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:29:42,274 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:29:42,274 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:29:42,274 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 [2018-12-01 08:29:42,274 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:29:42,274 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:29:42,275 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:29:42,275 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:29:42,275 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:29:42,275 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:29:42,275 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:29:42,275 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:29:42,276 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 [2018-12-01 08:29:42,276 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:29:42,276 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:29:42,276 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:29:42,276 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:29:42,276 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:29:42,277 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:29:42,277 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:29:42,277 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:29:42,277 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 [2018-12-01 08:29:42,277 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:29:42,278 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:29:42,278 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:29:42,278 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:29:42,278 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:29:42,278 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:29:42,278 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:29:42,278 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:29:42,279 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 [2018-12-01 08:29:42,279 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:29:42,279 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:29:42,279 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:29:42,279 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:29:42,279 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:29:42,279 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:29:42,279 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:29:42,280 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:29:42,280 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 [2018-12-01 08:29:42,280 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:29:42,280 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 08:29:42,281 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:29:42,281 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:29:42,281 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:29:42,281 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 08:29:42,281 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 08:29:42,281 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:29:42,282 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 [2018-12-01 08:29:42,282 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:29:42,282 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:29:42,282 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:29:42,282 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:29:42,283 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 08:29:42,283 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 08:29:42,284 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:29:42,285 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 [2018-12-01 08:29:42,285 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:29:42,285 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2018-12-01 08:29:42,285 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:29:42,285 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:29:42,287 INFO L402 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2018-12-01 08:29:42,287 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 08:29:42,298 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:29:42,298 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 [2018-12-01 08:29:42,299 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:29:42,299 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:29:42,299 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:29:42,299 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:29:42,300 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 08:29:42,300 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 08:29:42,302 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:29:42,302 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 [2018-12-01 08:29:42,303 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:29:42,303 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:29:42,303 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:29:42,303 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:29:42,304 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 08:29:42,304 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 08:29:42,310 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:29:42,310 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 [2018-12-01 08:29:42,311 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:29:42,311 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:29:42,311 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:29:42,311 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:29:42,311 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 08:29:42,312 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 08:29:42,313 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 08:29:42,313 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 [2018-12-01 08:29:42,314 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 08:29:42,314 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 08:29:42,314 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 08:29:42,314 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 08:29:42,316 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 08:29:42,316 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 08:29:42,337 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 08:29:42,349 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-01 08:29:42,350 INFO L444 ModelExtractionUtils]: 44 out of 49 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-01 08:29:42,351 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 08:29:42,352 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-01 08:29:42,352 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 08:29:42,353 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrcat_~s1.offset, ULTIMATE.start_cstrcat_~s~0.offset) = 1*ULTIMATE.start_cstrcat_~s1.offset + 2*ULTIMATE.start_cstrcat_~s~0.offset Supporting invariants [1*ULTIMATE.start_cstrcat_~s1.offset - 1 >= 0] [2018-12-01 08:29:42,370 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2018-12-01 08:29:42,401 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 08:29:42,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:29:42,414 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:29:42,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 08:29:42,429 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 08:29:42,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 08:29:42,453 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-12-01 08:29:42,454 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 4 states. [2018-12-01 08:29:42,505 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 4 states. Result 35 states and 45 transitions. Complement of second has 8 states. [2018-12-01 08:29:42,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2018-12-01 08:29:42,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-01 08:29:42,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 34 transitions. [2018-12-01 08:29:42,508 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 34 transitions. Stem has 6 letters. Loop has 2 letters. [2018-12-01 08:29:42,509 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:29:42,509 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 34 transitions. Stem has 8 letters. Loop has 2 letters. [2018-12-01 08:29:42,509 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:29:42,510 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 34 transitions. Stem has 6 letters. Loop has 4 letters. [2018-12-01 08:29:42,510 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 08:29:42,510 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 45 transitions. [2018-12-01 08:29:42,513 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-01 08:29:42,515 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 0 states and 0 transitions. [2018-12-01 08:29:42,515 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-01 08:29:42,515 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-01 08:29:42,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-01 08:29:42,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 08:29:42,516 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 08:29:42,516 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 08:29:42,516 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 08:29:42,516 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-01 08:29:42,516 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-01 08:29:42,516 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-01 08:29:42,516 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-01 08:29:42,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 08:29:42 BoogieIcfgContainer [2018-12-01 08:29:42,520 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-01 08:29:42,520 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 08:29:42,520 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 08:29:42,520 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 08:29:42,520 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 08:29:41" (3/4) ... [2018-12-01 08:29:42,522 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-01 08:29:42,522 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 08:29:42,523 INFO L168 Benchmark]: Toolchain (without parser) took 1869.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -103.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2018-12-01 08:29:42,523 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 08:29:42,524 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -154.0 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2018-12-01 08:29:42,524 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.85 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. [2018-12-01 08:29:42,524 INFO L168 Benchmark]: Boogie Preprocessor took 14.94 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. [2018-12-01 08:29:42,525 INFO L168 Benchmark]: RCFGBuilder took 175.83 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: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2018-12-01 08:29:42,525 INFO L168 Benchmark]: BuchiAutomizer took 1296.58 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: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2018-12-01 08:29:42,525 INFO L168 Benchmark]: Witness Printer took 2.39 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. [2018-12-01 08:29:42,528 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 350.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -154.0 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.85 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. * Boogie Preprocessor took 14.94 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 175.83 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: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1296.58 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: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * Witness Printer took 2.39 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function s1 + 2 * s and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. 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: 16 SDtfs, 18 SDslu, 14 SDs, 0 SdLazy, 10 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital192 mio100 ax100 hnf98 lsp96 ukn78 mio100 lsp54 div100 bol100 ite100 ukn100 eq189 hnf89 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 5 VariablesLoop: 3 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...