./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/cstrspn-alloca_true-valid-memsafety_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_d7ac7914-d82c-4e50-8a07-421aed70f1f4/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d7ac7914-d82c-4e50-8a07-421aed70f1f4/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d7ac7914-d82c-4e50-8a07-421aed70f1f4/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d7ac7914-d82c-4e50-8a07-421aed70f1f4/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/cstrspn-alloca_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_d7ac7914-d82c-4e50-8a07-421aed70f1f4/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d7ac7914-d82c-4e50-8a07-421aed70f1f4/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 32bit --witnessprinter.graph.data.programhash 1f6e8c8b965f85c3429105401e9fda59f9f060cb ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 09:49:02,141 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 09:49:02,142 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 09:49:02,149 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 09:49:02,149 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 09:49:02,150 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 09:49:02,151 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 09:49:02,152 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 09:49:02,153 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 09:49:02,153 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 09:49:02,154 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 09:49:02,154 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 09:49:02,155 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 09:49:02,155 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 09:49:02,156 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 09:49:02,156 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 09:49:02,157 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 09:49:02,158 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 09:49:02,160 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 09:49:02,161 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 09:49:02,161 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 09:49:02,162 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 09:49:02,164 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 09:49:02,164 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 09:49:02,164 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 09:49:02,165 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 09:49:02,165 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 09:49:02,166 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 09:49:02,166 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 09:49:02,167 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 09:49:02,167 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 09:49:02,168 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 09:49:02,168 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 09:49:02,168 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 09:49:02,168 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 09:49:02,169 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 09:49:02,169 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d7ac7914-d82c-4e50-8a07-421aed70f1f4/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-12-02 09:49:02,180 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 09:49:02,180 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 09:49:02,181 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 09:49:02,181 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 09:49:02,181 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 09:49:02,181 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-02 09:49:02,181 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-02 09:49:02,182 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-02 09:49:02,182 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-02 09:49:02,182 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-02 09:49:02,182 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-02 09:49:02,182 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 09:49:02,182 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 09:49:02,182 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 09:49:02,182 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 09:49:02,182 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 09:49:02,182 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 09:49:02,183 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-02 09:49:02,183 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-02 09:49:02,183 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-02 09:49:02,183 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 09:49:02,183 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 09:49:02,183 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-02 09:49:02,183 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 09:49:02,183 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-02 09:49:02,183 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 09:49:02,184 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 09:49:02,184 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-02 09:49:02,184 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 09:49:02,184 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 09:49:02,184 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-02 09:49:02,184 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-02 09:49:02,185 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_d7ac7914-d82c-4e50-8a07-421aed70f1f4/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f6e8c8b965f85c3429105401e9fda59f9f060cb [2018-12-02 09:49:02,207 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 09:49:02,216 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 09:49:02,219 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 09:49:02,220 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 09:49:02,220 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 09:49:02,221 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d7ac7914-d82c-4e50-8a07-421aed70f1f4/bin-2019/uautomizer/../../sv-benchmarks/c/array-memsafety/cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-12-02 09:49:02,261 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d7ac7914-d82c-4e50-8a07-421aed70f1f4/bin-2019/uautomizer/data/e00caf166/2d22517fce3d4b25aedede0f207bc926/FLAG7a20e4243 [2018-12-02 09:49:02,610 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 09:49:02,610 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d7ac7914-d82c-4e50-8a07-421aed70f1f4/sv-benchmarks/c/array-memsafety/cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-12-02 09:49:02,616 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d7ac7914-d82c-4e50-8a07-421aed70f1f4/bin-2019/uautomizer/data/e00caf166/2d22517fce3d4b25aedede0f207bc926/FLAG7a20e4243 [2018-12-02 09:49:02,997 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d7ac7914-d82c-4e50-8a07-421aed70f1f4/bin-2019/uautomizer/data/e00caf166/2d22517fce3d4b25aedede0f207bc926 [2018-12-02 09:49:02,999 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 09:49:03,001 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 09:49:03,001 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 09:49:03,002 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 09:49:03,004 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 09:49:03,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:49:02" (1/1) ... [2018-12-02 09:49:03,006 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e93016c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:03, skipping insertion in model container [2018-12-02 09:49:03,006 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:49:02" (1/1) ... [2018-12-02 09:49:03,010 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 09:49:03,034 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 09:49:03,195 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 09:49:03,201 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 09:49:03,256 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 09:49:03,283 INFO L195 MainTranslator]: Completed translation [2018-12-02 09:49:03,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:03 WrapperNode [2018-12-02 09:49:03,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 09:49:03,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 09:49:03,284 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 09:49:03,284 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 09:49:03,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:03" (1/1) ... [2018-12-02 09:49:03,296 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:03" (1/1) ... [2018-12-02 09:49:03,309 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 09:49:03,309 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 09:49:03,309 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 09:49:03,309 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 09:49:03,314 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:03" (1/1) ... [2018-12-02 09:49:03,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:03" (1/1) ... [2018-12-02 09:49:03,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:03" (1/1) ... [2018-12-02 09:49:03,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:03" (1/1) ... [2018-12-02 09:49:03,319 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:03" (1/1) ... [2018-12-02 09:49:03,322 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:03" (1/1) ... [2018-12-02 09:49:03,323 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:03" (1/1) ... [2018-12-02 09:49:03,324 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 09:49:03,324 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 09:49:03,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 09:49:03,324 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 09:49:03,325 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d7ac7914-d82c-4e50-8a07-421aed70f1f4/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 [2018-12-02 09:49:03,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 09:49:03,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 09:49:03,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 09:49:03,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 09:49:03,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 09:49:03,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 09:49:03,487 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 09:49:03,487 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-02 09:49:03,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:49:03 BoogieIcfgContainer [2018-12-02 09:49:03,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 09:49:03,487 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-02 09:49:03,488 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-02 09:49:03,490 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-02 09:49:03,490 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 09:49:03,490 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 09:49:02" (1/3) ... [2018-12-02 09:49:03,491 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5cb0a60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 09:49:03, skipping insertion in model container [2018-12-02 09:49:03,491 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 09:49:03,491 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:49:03" (2/3) ... [2018-12-02 09:49:03,491 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5cb0a60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 09:49:03, skipping insertion in model container [2018-12-02 09:49:03,491 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 09:49:03,491 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:49:03" (3/3) ... [2018-12-02 09:49:03,492 INFO L375 chiAutomizerObserver]: Analyzing ICFG cstrspn-alloca_true-valid-memsafety_true-termination.i [2018-12-02 09:49:03,522 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 09:49:03,523 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-02 09:49:03,523 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-02 09:49:03,523 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-02 09:49:03,523 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 09:49:03,523 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 09:49:03,523 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-02 09:49:03,523 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 09:49:03,523 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-02 09:49:03,531 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2018-12-02 09:49:03,544 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2018-12-02 09:49:03,544 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 09:49:03,544 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 09:49:03,548 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-12-02 09:49:03,548 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2018-12-02 09:49:03,548 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-02 09:49:03,548 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2018-12-02 09:49:03,549 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2018-12-02 09:49:03,549 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 09:49:03,549 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 09:49:03,549 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-12-02 09:49:03,549 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2018-12-02 09:49:03,554 INFO L794 eck$LassoCheckResult]: Stem: 14#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 10#L-1true havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~ret14, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 3#L558true assume !(main_~length1~0 < 1); 6#L558-2true assume !(main_~length2~0 < 1); 19#L561-1true call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.alloc(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.alloc(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~mem4, cstrspn_#t~post8.base, cstrspn_#t~post8.offset, cstrspn_#t~mem5, cstrspn_#t~mem6, cstrspn_#t~short7, cstrspn_#t~mem9, cstrspn_#t~post2.base, cstrspn_#t~post2.offset, cstrspn_#t~mem3, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, cstrspn_~s~0.base, cstrspn_~s~0.offset, cstrspn_~c~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;havoc cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;havoc cstrspn_~s~0.base, cstrspn_~s~0.offset;havoc cstrspn_~c~0;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset; 15#L545-4true [2018-12-02 09:49:03,554 INFO L796 eck$LassoCheckResult]: Loop: 15#L545-4true call cstrspn_#t~mem3 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 8#L545-1true assume !!(0 != cstrspn_#t~mem3);havoc cstrspn_#t~mem3;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem4 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem4;havoc cstrspn_#t~mem4; 9#L548-5true assume !true; 12#L548-6true call cstrspn_#t~mem9 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1); 18#L550true assume !(cstrspn_#t~mem9 != cstrspn_~c~0);havoc cstrspn_#t~mem9; 13#L545-3true cstrspn_#t~post2.base, cstrspn_#t~post2.offset := cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_#t~post2.base, 1 + cstrspn_#t~post2.offset;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset; 15#L545-4true [2018-12-02 09:49:03,557 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:49:03,558 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2018-12-02 09:49:03,559 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:49:03,559 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:49:03,587 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:49:03,587 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 09:49:03,587 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:49:03,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:49:03,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:49:03,641 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:49:03,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1454917130, now seen corresponding path program 1 times [2018-12-02 09:49:03,642 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:49:03,642 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:49:03,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:49:03,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 09:49:03,643 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:49:03,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:49:03,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:49:03,661 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 09:49:03,661 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 09:49:03,664 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-02 09:49:03,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 09:49:03,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 09:49:03,674 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2018-12-02 09:49:03,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 09:49:03,678 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2018-12-02 09:49:03,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 09:49:03,679 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2018-12-02 09:49:03,680 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2018-12-02 09:49:03,682 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 13 states and 17 transitions. [2018-12-02 09:49:03,682 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2018-12-02 09:49:03,683 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2018-12-02 09:49:03,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2018-12-02 09:49:03,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-02 09:49:03,683 INFO L705 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2018-12-02 09:49:03,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2018-12-02 09:49:03,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-12-02 09:49:03,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-12-02 09:49:03,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2018-12-02 09:49:03,706 INFO L728 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2018-12-02 09:49:03,706 INFO L608 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2018-12-02 09:49:03,706 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-02 09:49:03,706 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2018-12-02 09:49:03,707 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2018-12-02 09:49:03,707 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 09:49:03,707 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 09:49:03,707 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-12-02 09:49:03,707 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 09:49:03,707 INFO L794 eck$LassoCheckResult]: Stem: 56#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 52#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~ret14, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 44#L558 assume !(main_~length1~0 < 1); 45#L558-2 assume !(main_~length2~0 < 1); 48#L561-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.alloc(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.alloc(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~mem4, cstrspn_#t~post8.base, cstrspn_#t~post8.offset, cstrspn_#t~mem5, cstrspn_#t~mem6, cstrspn_#t~short7, cstrspn_#t~mem9, cstrspn_#t~post2.base, cstrspn_#t~post2.offset, cstrspn_#t~mem3, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, cstrspn_~s~0.base, cstrspn_~s~0.offset, cstrspn_~c~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;havoc cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;havoc cstrspn_~s~0.base, cstrspn_~s~0.offset;havoc cstrspn_~c~0;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset; 55#L545-4 [2018-12-02 09:49:03,708 INFO L796 eck$LassoCheckResult]: Loop: 55#L545-4 call cstrspn_#t~mem3 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 51#L545-1 assume !!(0 != cstrspn_#t~mem3);havoc cstrspn_#t~mem3;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem4 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem4;havoc cstrspn_#t~mem4; 50#L548-5 call cstrspn_#t~mem5 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := 0 != cstrspn_#t~mem5; 46#L548-1 assume cstrspn_#t~short7;call cstrspn_#t~mem6 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := cstrspn_#t~mem6 != (if cstrspn_~c~0 % 256 <= 127 then cstrspn_~c~0 % 256 else cstrspn_~c~0 % 256 - 256); 47#L548-3 assume !cstrspn_#t~short7;havoc cstrspn_#t~mem5;havoc cstrspn_#t~short7;havoc cstrspn_#t~mem6; 49#L548-6 call cstrspn_#t~mem9 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1); 53#L550 assume !(cstrspn_#t~mem9 != cstrspn_~c~0);havoc cstrspn_#t~mem9; 54#L545-3 cstrspn_#t~post2.base, cstrspn_#t~post2.offset := cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_#t~post2.base, 1 + cstrspn_#t~post2.offset;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset; 55#L545-4 [2018-12-02 09:49:03,708 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:49:03,708 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 2 times [2018-12-02 09:49:03,708 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:49:03,708 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:49:03,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:49:03,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 09:49:03,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:49:03,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:49:03,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:49:03,729 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:49:03,730 INFO L82 PathProgramCache]: Analyzing trace with hash 1927396657, now seen corresponding path program 1 times [2018-12-02 09:49:03,730 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:49:03,730 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:49:03,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:49:03,730 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 09:49:03,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:49:03,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:49:03,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:49:03,746 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:49:03,746 INFO L82 PathProgramCache]: Analyzing trace with hash -102988426, now seen corresponding path program 1 times [2018-12-02 09:49:03,746 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:49:03,746 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:49:03,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:49:03,747 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 09:49:03,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:49:03,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:49:03,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:49:03,903 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2018-12-02 09:49:04,049 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2018-12-02 09:49:04,190 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2018-12-02 09:49:04,254 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 09:49:04,255 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 09:49:04,255 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 09:49:04,255 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 09:49:04,255 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-02 09:49:04,255 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 09:49:04,255 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 09:49:04,256 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 09:49:04,256 INFO L131 ssoRankerPreferences]: Filename of dumped script: cstrspn-alloca_true-valid-memsafety_true-termination.i_Iteration2_Lasso [2018-12-02 09:49:04,256 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 09:49:04,256 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 09:49:04,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:04,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:04,520 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:04,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:04,523 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:04,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:04,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:04,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:04,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:04,528 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:04,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:04,531 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:04,532 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:04,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:04,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:04,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:04,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:04,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:04,857 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 09:49:04,860 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-02 09:49:04,862 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 [2018-12-02 09:49:04,863 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:04,863 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 09:49:04,864 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:04,864 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:04,864 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:04,865 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 09:49:04,865 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 09:49:04,866 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:04,867 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 [2018-12-02 09:49:04,867 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:04,867 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2018-12-02 09:49:04,867 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:04,867 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:04,871 INFO L402 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2018-12-02 09:49:04,871 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 09:49:04,887 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:04,887 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 [2018-12-02 09:49:04,888 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:04,888 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:04,888 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:04,888 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:04,889 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 09:49:04,889 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 09:49:04,891 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:04,891 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 [2018-12-02 09:49:04,891 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:04,891 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:04,891 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:04,892 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:04,893 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 09:49:04,893 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 09:49:04,901 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:04,901 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 [2018-12-02 09:49:04,901 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:04,902 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 09:49:04,902 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:04,902 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:04,902 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:04,902 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 09:49:04,902 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 09:49:04,904 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:04,904 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 [2018-12-02 09:49:04,905 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:04,905 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:04,905 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:04,905 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:04,906 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 09:49:04,906 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 09:49:04,909 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:04,909 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 [2018-12-02 09:49:04,910 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:04,910 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:04,910 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:04,910 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:04,912 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 09:49:04,912 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 09:49:04,922 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:04,923 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 [2018-12-02 09:49:04,923 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:04,924 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:04,924 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:04,924 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:04,926 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 09:49:04,926 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 09:49:04,945 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-02 09:49:04,964 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-12-02 09:49:04,964 INFO L444 ModelExtractionUtils]: 23 out of 28 variables were initially zero. Simplification set additionally 2 variables to zero. [2018-12-02 09:49:04,966 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-02 09:49:04,967 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-12-02 09:49:04,967 INFO L518 LassoAnalysis]: Proved termination. [2018-12-02 09:49:04,968 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrspn_~sc1~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc12.base)_1) = -1*ULTIMATE.start_cstrspn_~sc1~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc12.base)_1 Supporting invariants [] [2018-12-02 09:49:04,992 INFO L297 tatePredicateManager]: 8 out of 9 supporting invariants were superfluous and have been removed [2018-12-02 09:49:04,997 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 09:49:05,021 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:49:05,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:49:05,034 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 09:49:05,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:49:05,047 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 09:49:05,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:49:05,059 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 [2018-12-02 09:49:05,059 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-12-02 09:49:05,103 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 21 states and 28 transitions. Complement of second has 4 states. [2018-12-02 09:49:05,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-02 09:49:05,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-02 09:49:05,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 17 transitions. [2018-12-02 09:49:05,105 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 8 letters. [2018-12-02 09:49:05,106 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 09:49:05,106 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 13 letters. Loop has 8 letters. [2018-12-02 09:49:05,106 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 09:49:05,107 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 16 letters. [2018-12-02 09:49:05,107 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 09:49:05,107 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 28 transitions. [2018-12-02 09:49:05,107 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-02 09:49:05,108 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 18 states and 25 transitions. [2018-12-02 09:49:05,108 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2018-12-02 09:49:05,108 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2018-12-02 09:49:05,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 25 transitions. [2018-12-02 09:49:05,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-02 09:49:05,108 INFO L705 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2018-12-02 09:49:05,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 25 transitions. [2018-12-02 09:49:05,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-12-02 09:49:05,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-12-02 09:49:05,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2018-12-02 09:49:05,109 INFO L728 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2018-12-02 09:49:05,110 INFO L608 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2018-12-02 09:49:05,110 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-02 09:49:05,110 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2018-12-02 09:49:05,110 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-02 09:49:05,110 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 09:49:05,110 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 09:49:05,110 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-02 09:49:05,110 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-02 09:49:05,110 INFO L794 eck$LassoCheckResult]: Stem: 194#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 190#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~ret14, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 178#L558 assume !(main_~length1~0 < 1); 179#L558-2 assume !(main_~length2~0 < 1); 184#L561-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.alloc(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.alloc(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~mem4, cstrspn_#t~post8.base, cstrspn_#t~post8.offset, cstrspn_#t~mem5, cstrspn_#t~mem6, cstrspn_#t~short7, cstrspn_#t~mem9, cstrspn_#t~post2.base, cstrspn_#t~post2.offset, cstrspn_#t~mem3, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, cstrspn_~s~0.base, cstrspn_~s~0.offset, cstrspn_~c~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;havoc cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;havoc cstrspn_~s~0.base, cstrspn_~s~0.offset;havoc cstrspn_~c~0;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset; 195#L545-4 call cstrspn_#t~mem3 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 188#L545-1 assume !!(0 != cstrspn_#t~mem3);havoc cstrspn_#t~mem3;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem4 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem4;havoc cstrspn_#t~mem4; 185#L548-5 [2018-12-02 09:49:05,110 INFO L796 eck$LassoCheckResult]: Loop: 185#L548-5 call cstrspn_#t~mem5 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := 0 != cstrspn_#t~mem5; 180#L548-1 assume cstrspn_#t~short7;call cstrspn_#t~mem6 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := cstrspn_#t~mem6 != (if cstrspn_~c~0 % 256 <= 127 then cstrspn_~c~0 % 256 else cstrspn_~c~0 % 256 - 256); 181#L548-3 assume !!cstrspn_#t~short7;havoc cstrspn_#t~mem5;havoc cstrspn_#t~short7;havoc cstrspn_#t~mem6;cstrspn_#t~post8.base, cstrspn_#t~post8.offset := cstrspn_~s~0.base, cstrspn_~s~0.offset;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_#t~post8.base, 1 + cstrspn_#t~post8.offset;havoc cstrspn_#t~post8.base, cstrspn_#t~post8.offset; 185#L548-5 [2018-12-02 09:49:05,111 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:49:05,111 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935595, now seen corresponding path program 1 times [2018-12-02 09:49:05,111 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:49:05,111 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:49:05,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:49:05,111 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 09:49:05,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:49:05,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:49:05,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:49:05,125 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:49:05,125 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 1 times [2018-12-02 09:49:05,125 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:49:05,125 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:49:05,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:49:05,126 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 09:49:05,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:49:05,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:49:05,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:49:05,133 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:49:05,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1593218778, now seen corresponding path program 1 times [2018-12-02 09:49:05,133 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:49:05,133 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:49:05,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:49:05,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 09:49:05,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:49:05,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:49:05,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:49:05,432 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 97 [2018-12-02 09:49:05,500 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 09:49:05,500 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 09:49:05,500 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 09:49:05,500 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 09:49:05,501 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-02 09:49:05,501 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 09:49:05,501 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 09:49:05,501 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 09:49:05,501 INFO L131 ssoRankerPreferences]: Filename of dumped script: cstrspn-alloca_true-valid-memsafety_true-termination.i_Iteration3_Lasso [2018-12-02 09:49:05,501 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 09:49:05,501 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 09:49:05,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:05,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:05,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:05,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:05,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:05,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:05,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:05,510 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:05,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:05,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:05,513 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:05,514 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:05,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:05,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:05,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:05,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:05,737 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:05,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:06,066 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 09:49:06,066 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-02 09:49:06,067 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 [2018-12-02 09:49:06,067 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:06,067 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 09:49:06,067 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:06,067 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:06,067 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:06,067 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 09:49:06,067 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 09:49:06,068 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:06,068 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 [2018-12-02 09:49:06,068 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:06,068 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 09:49:06,068 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:06,068 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:06,068 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:06,069 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 09:49:06,069 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 09:49:06,069 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:06,069 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 [2018-12-02 09:49:06,069 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:06,069 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 09:49:06,069 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:06,069 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:06,069 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:06,070 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 09:49:06,070 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 09:49:06,070 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:06,070 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 [2018-12-02 09:49:06,070 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:06,070 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:06,070 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:06,070 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:06,071 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 09:49:06,071 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 09:49:06,072 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:06,072 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 [2018-12-02 09:49:06,072 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:06,072 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 09:49:06,072 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:06,072 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:06,072 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:06,072 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 09:49:06,072 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 09:49:06,073 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:06,073 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 [2018-12-02 09:49:06,073 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:06,073 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 09:49:06,073 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:06,073 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:06,073 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:06,073 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 09:49:06,074 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 09:49:06,074 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:06,074 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 [2018-12-02 09:49:06,074 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:06,074 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 09:49:06,074 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:06,074 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:06,074 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:06,075 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 09:49:06,075 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 09:49:06,075 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:06,075 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 [2018-12-02 09:49:06,075 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:06,075 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:06,076 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:06,076 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:06,076 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 09:49:06,076 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 09:49:06,077 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:06,077 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 [2018-12-02 09:49:06,077 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:06,077 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 09:49:06,077 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:06,077 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:06,077 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:06,078 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 09:49:06,078 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 09:49:06,078 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:06,078 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 [2018-12-02 09:49:06,078 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:06,078 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 09:49:06,078 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:06,079 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:06,079 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:06,079 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 09:49:06,079 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 09:49:06,079 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:06,079 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 [2018-12-02 09:49:06,080 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:06,080 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 09:49:06,080 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:06,080 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:06,080 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:06,080 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 09:49:06,080 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 09:49:06,080 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:06,081 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 [2018-12-02 09:49:06,081 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:06,081 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 09:49:06,081 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:06,081 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:06,081 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:06,081 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 09:49:06,081 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 09:49:06,082 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:06,082 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 [2018-12-02 09:49:06,082 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:06,082 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 09:49:06,082 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:06,082 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:06,082 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:06,082 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 09:49:06,082 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 09:49:06,083 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:06,083 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 [2018-12-02 09:49:06,083 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:06,083 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2018-12-02 09:49:06,083 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:06,083 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:06,084 INFO L402 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2018-12-02 09:49:06,084 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 09:49:06,088 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:06,088 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 [2018-12-02 09:49:06,089 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:06,089 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2018-12-02 09:49:06,089 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:06,089 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:06,090 INFO L402 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2018-12-02 09:49:06,090 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 09:49:06,093 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:06,093 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 [2018-12-02 09:49:06,094 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:06,094 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:06,094 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:06,094 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:06,094 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 09:49:06,094 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 09:49:06,095 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:06,095 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 [2018-12-02 09:49:06,096 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:06,096 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:06,096 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:06,096 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:06,096 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 09:49:06,096 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 09:49:06,099 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:06,099 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 [2018-12-02 09:49:06,099 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:06,099 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:06,099 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:06,099 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:06,100 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 09:49:06,100 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 09:49:06,101 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:06,101 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 [2018-12-02 09:49:06,101 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:06,101 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:06,101 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:06,101 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:06,102 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 09:49:06,102 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 09:49:06,102 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:06,103 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 [2018-12-02 09:49:06,103 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:06,103 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2018-12-02 09:49:06,103 INFO L206 nArgumentSynthesizer]: 6 loop disjuncts [2018-12-02 09:49:06,103 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:06,113 INFO L402 nArgumentSynthesizer]: We have 108 Motzkin's Theorem applications. [2018-12-02 09:49:06,113 INFO L403 nArgumentSynthesizer]: A total of 12 supporting invariants were added. [2018-12-02 09:49:06,159 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:06,159 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 [2018-12-02 09:49:06,159 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:06,160 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:06,160 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:06,160 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:06,160 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 09:49:06,160 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 09:49:06,161 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:06,161 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 [2018-12-02 09:49:06,161 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:06,161 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:06,161 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:06,161 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:06,163 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 09:49:06,163 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 09:49:06,171 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-02 09:49:06,180 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-12-02 09:49:06,180 INFO L444 ModelExtractionUtils]: 41 out of 46 variables were initially zero. Simplification set additionally 2 variables to zero. [2018-12-02 09:49:06,180 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-02 09:49:06,180 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-12-02 09:49:06,181 INFO L518 LassoAnalysis]: Proved termination. [2018-12-02 09:49:06,181 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_2, ULTIMATE.start_cstrspn_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_2 - 1*ULTIMATE.start_cstrspn_~s~0.offset Supporting invariants [] [2018-12-02 09:49:06,210 INFO L297 tatePredicateManager]: 14 out of 15 supporting invariants were superfluous and have been removed [2018-12-02 09:49:06,212 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 09:49:06,228 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:49:06,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:49:06,237 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 09:49:06,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:49:06,256 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 09:49:06,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:49:06,266 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 [2018-12-02 09:49:06,267 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 9 Second operand 4 states. [2018-12-02 09:49:06,296 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 43 states and 57 transitions. Complement of second has 6 states. [2018-12-02 09:49:06,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-02 09:49:06,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-02 09:49:06,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2018-12-02 09:49:06,296 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 3 letters. [2018-12-02 09:49:06,296 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 09:49:06,296 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 10 letters. Loop has 3 letters. [2018-12-02 09:49:06,297 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 09:49:06,297 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 6 letters. [2018-12-02 09:49:06,297 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 09:49:06,297 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 57 transitions. [2018-12-02 09:49:06,298 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-02 09:49:06,299 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 30 states and 40 transitions. [2018-12-02 09:49:06,299 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2018-12-02 09:49:06,299 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-12-02 09:49:06,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 40 transitions. [2018-12-02 09:49:06,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-02 09:49:06,299 INFO L705 BuchiCegarLoop]: Abstraction has 30 states and 40 transitions. [2018-12-02 09:49:06,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 40 transitions. [2018-12-02 09:49:06,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2018-12-02 09:49:06,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-12-02 09:49:06,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 33 transitions. [2018-12-02 09:49:06,301 INFO L728 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2018-12-02 09:49:06,301 INFO L608 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2018-12-02 09:49:06,301 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-02 09:49:06,302 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 33 transitions. [2018-12-02 09:49:06,302 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-02 09:49:06,302 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 09:49:06,302 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 09:49:06,303 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 09:49:06,303 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-02 09:49:06,303 INFO L794 eck$LassoCheckResult]: Stem: 375#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 371#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~ret14, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 358#L558 assume !(main_~length1~0 < 1); 359#L558-2 assume !(main_~length2~0 < 1); 364#L561-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.alloc(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.alloc(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~mem4, cstrspn_#t~post8.base, cstrspn_#t~post8.offset, cstrspn_#t~mem5, cstrspn_#t~mem6, cstrspn_#t~short7, cstrspn_#t~mem9, cstrspn_#t~post2.base, cstrspn_#t~post2.offset, cstrspn_#t~mem3, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, cstrspn_~s~0.base, cstrspn_~s~0.offset, cstrspn_~c~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;havoc cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;havoc cstrspn_~s~0.base, cstrspn_~s~0.offset;havoc cstrspn_~c~0;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset; 376#L545-4 call cstrspn_#t~mem3 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 377#L545-1 assume !!(0 != cstrspn_#t~mem3);havoc cstrspn_#t~mem3;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem4 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem4;havoc cstrspn_#t~mem4; 379#L548-5 call cstrspn_#t~mem5 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := 0 != cstrspn_#t~mem5; 380#L548-1 assume !cstrspn_#t~short7; 366#L548-3 assume !cstrspn_#t~short7;havoc cstrspn_#t~mem5;havoc cstrspn_#t~short7;havoc cstrspn_#t~mem6; 367#L548-6 call cstrspn_#t~mem9 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1); 372#L550 assume !(cstrspn_#t~mem9 != cstrspn_~c~0);havoc cstrspn_#t~mem9; 373#L545-3 cstrspn_#t~post2.base, cstrspn_#t~post2.offset := cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_#t~post2.base, 1 + cstrspn_#t~post2.offset;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset; 374#L545-4 call cstrspn_#t~mem3 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 368#L545-1 assume !!(0 != cstrspn_#t~mem3);havoc cstrspn_#t~mem3;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem4 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem4;havoc cstrspn_#t~mem4; 365#L548-5 [2018-12-02 09:49:06,303 INFO L796 eck$LassoCheckResult]: Loop: 365#L548-5 call cstrspn_#t~mem5 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := 0 != cstrspn_#t~mem5; 360#L548-1 assume cstrspn_#t~short7;call cstrspn_#t~mem6 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := cstrspn_#t~mem6 != (if cstrspn_~c~0 % 256 <= 127 then cstrspn_~c~0 % 256 else cstrspn_~c~0 % 256 - 256); 361#L548-3 assume !!cstrspn_#t~short7;havoc cstrspn_#t~mem5;havoc cstrspn_#t~short7;havoc cstrspn_#t~mem6;cstrspn_#t~post8.base, cstrspn_#t~post8.offset := cstrspn_~s~0.base, cstrspn_~s~0.offset;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_#t~post8.base, 1 + cstrspn_#t~post8.offset;havoc cstrspn_#t~post8.base, cstrspn_#t~post8.offset; 365#L548-5 [2018-12-02 09:49:06,303 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:49:06,303 INFO L82 PathProgramCache]: Analyzing trace with hash 1587378397, now seen corresponding path program 1 times [2018-12-02 09:49:06,303 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:49:06,303 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:49:06,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:49:06,304 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 09:49:06,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:49:06,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:49:06,339 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:49:06,339 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 09:49:06,339 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 09:49:06,340 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-12-02 09:49:06,340 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:49:06,340 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 2 times [2018-12-02 09:49:06,340 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:49:06,340 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:49:06,340 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:49:06,340 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 09:49:06,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:49:06,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:49:06,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:49:06,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 09:49:06,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-02 09:49:06,450 INFO L87 Difference]: Start difference. First operand 24 states and 33 transitions. cyclomatic complexity: 12 Second operand 7 states. [2018-12-02 09:49:06,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 09:49:06,496 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2018-12-02 09:49:06,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 09:49:06,497 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 39 transitions. [2018-12-02 09:49:06,497 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-12-02 09:49:06,497 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 27 states and 35 transitions. [2018-12-02 09:49:06,498 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2018-12-02 09:49:06,498 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-12-02 09:49:06,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 35 transitions. [2018-12-02 09:49:06,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-02 09:49:06,498 INFO L705 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2018-12-02 09:49:06,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 35 transitions. [2018-12-02 09:49:06,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2018-12-02 09:49:06,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-12-02 09:49:06,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 33 transitions. [2018-12-02 09:49:06,499 INFO L728 BuchiCegarLoop]: Abstraction has 25 states and 33 transitions. [2018-12-02 09:49:06,499 INFO L608 BuchiCegarLoop]: Abstraction has 25 states and 33 transitions. [2018-12-02 09:49:06,499 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-12-02 09:49:06,500 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 33 transitions. [2018-12-02 09:49:06,500 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-02 09:49:06,500 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 09:49:06,500 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 09:49:06,500 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 09:49:06,500 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-02 09:49:06,500 INFO L794 eck$LassoCheckResult]: Stem: 449#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 444#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~ret14, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 430#L558 assume !(main_~length1~0 < 1); 431#L558-2 assume !(main_~length2~0 < 1); 436#L561-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.alloc(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.alloc(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~mem4, cstrspn_#t~post8.base, cstrspn_#t~post8.offset, cstrspn_#t~mem5, cstrspn_#t~mem6, cstrspn_#t~short7, cstrspn_#t~mem9, cstrspn_#t~post2.base, cstrspn_#t~post2.offset, cstrspn_#t~mem3, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, cstrspn_~s~0.base, cstrspn_~s~0.offset, cstrspn_~c~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;havoc cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;havoc cstrspn_~s~0.base, cstrspn_~s~0.offset;havoc cstrspn_~c~0;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset; 450#L545-4 call cstrspn_#t~mem3 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 451#L545-1 assume !!(0 != cstrspn_#t~mem3);havoc cstrspn_#t~mem3;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem4 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem4;havoc cstrspn_#t~mem4; 442#L548-5 call cstrspn_#t~mem5 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := 0 != cstrspn_#t~mem5; 443#L548-1 assume cstrspn_#t~short7;call cstrspn_#t~mem6 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := cstrspn_#t~mem6 != (if cstrspn_~c~0 % 256 <= 127 then cstrspn_~c~0 % 256 else cstrspn_~c~0 % 256 - 256); 452#L548-3 assume !cstrspn_#t~short7;havoc cstrspn_#t~mem5;havoc cstrspn_#t~short7;havoc cstrspn_#t~mem6; 445#L548-6 call cstrspn_#t~mem9 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1); 446#L550 assume !(cstrspn_#t~mem9 != cstrspn_~c~0);havoc cstrspn_#t~mem9; 447#L545-3 cstrspn_#t~post2.base, cstrspn_#t~post2.offset := cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_#t~post2.base, 1 + cstrspn_#t~post2.offset;havoc cstrspn_#t~post2.base, cstrspn_#t~post2.offset; 448#L545-4 call cstrspn_#t~mem3 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 440#L545-1 assume !!(0 != cstrspn_#t~mem3);havoc cstrspn_#t~mem3;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem4 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem4;havoc cstrspn_#t~mem4; 437#L548-5 [2018-12-02 09:49:06,501 INFO L796 eck$LassoCheckResult]: Loop: 437#L548-5 call cstrspn_#t~mem5 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := 0 != cstrspn_#t~mem5; 432#L548-1 assume cstrspn_#t~short7;call cstrspn_#t~mem6 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short7 := cstrspn_#t~mem6 != (if cstrspn_~c~0 % 256 <= 127 then cstrspn_~c~0 % 256 else cstrspn_~c~0 % 256 - 256); 433#L548-3 assume !!cstrspn_#t~short7;havoc cstrspn_#t~mem5;havoc cstrspn_#t~short7;havoc cstrspn_#t~mem6;cstrspn_#t~post8.base, cstrspn_#t~post8.offset := cstrspn_~s~0.base, cstrspn_~s~0.offset;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_#t~post8.base, 1 + cstrspn_#t~post8.offset;havoc cstrspn_#t~post8.base, cstrspn_#t~post8.offset; 437#L548-5 [2018-12-02 09:49:06,501 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:49:06,501 INFO L82 PathProgramCache]: Analyzing trace with hash -187628965, now seen corresponding path program 2 times [2018-12-02 09:49:06,501 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:49:06,501 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:49:06,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:49:06,501 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 09:49:06,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:49:06,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:49:06,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:49:06,547 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:49:06,547 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 3 times [2018-12-02 09:49:06,548 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:49:06,548 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:49:06,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:49:06,548 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 09:49:06,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:49:06,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:49:06,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:49:06,553 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:49:06,553 INFO L82 PathProgramCache]: Analyzing trace with hash -1902015318, now seen corresponding path program 1 times [2018-12-02 09:49:06,553 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 09:49:06,553 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 09:49:06,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:49:06,554 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 09:49:06,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:49:06,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:49:06,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:49:07,031 WARN L180 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 135 [2018-12-02 09:49:07,611 WARN L180 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 107 [2018-12-02 09:49:07,613 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 09:49:07,613 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 09:49:07,613 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 09:49:07,613 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 09:49:07,613 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-02 09:49:07,613 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 09:49:07,613 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 09:49:07,613 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 09:49:07,613 INFO L131 ssoRankerPreferences]: Filename of dumped script: cstrspn-alloca_true-valid-memsafety_true-termination.i_Iteration5_Lasso [2018-12-02 09:49:07,613 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 09:49:07,613 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 09:49:07,617 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:07,619 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:07,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:07,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:07,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:07,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:07,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:07,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:07,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:07,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:07,629 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:07,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:07,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:07,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:07,811 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-12-02 09:49:08,215 WARN L180 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 96 [2018-12-02 09:49:08,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:08,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:08,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:08,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 09:49:08,673 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 39 [2018-12-02 09:49:08,867 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 09:49:08,867 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-02 09:49:08,867 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 [2018-12-02 09:49:08,868 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:08,868 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 09:49:08,868 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:08,868 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:08,868 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:08,868 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 09:49:08,869 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 09:49:08,869 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:08,869 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 [2018-12-02 09:49:08,870 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:08,870 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:08,870 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:08,870 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:08,870 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 09:49:08,870 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 09:49:08,871 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:08,871 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 [2018-12-02 09:49:08,872 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:08,872 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 09:49:08,872 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:08,872 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:08,872 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:08,872 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 09:49:08,872 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 09:49:08,872 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:08,873 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 [2018-12-02 09:49:08,873 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:08,873 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 09:49:08,873 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:08,873 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:08,873 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:08,873 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 09:49:08,873 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 09:49:08,874 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:08,874 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 [2018-12-02 09:49:08,874 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:08,874 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 09:49:08,874 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:08,874 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:08,874 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:08,874 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 09:49:08,874 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 09:49:08,875 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:08,875 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 [2018-12-02 09:49:08,875 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:08,875 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 09:49:08,875 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:08,875 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:08,876 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:08,876 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 09:49:08,876 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 09:49:08,876 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:08,876 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 [2018-12-02 09:49:08,877 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:08,877 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 09:49:08,877 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:08,877 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:08,877 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:08,877 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 09:49:08,877 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 09:49:08,878 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:08,878 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 [2018-12-02 09:49:08,878 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:08,878 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:08,879 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:08,879 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:08,879 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 09:49:08,879 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 09:49:08,880 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:08,880 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 [2018-12-02 09:49:08,881 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:08,881 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 09:49:08,881 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:08,881 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:08,881 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:08,881 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 09:49:08,881 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 09:49:08,882 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:08,882 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 [2018-12-02 09:49:08,882 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:08,883 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 09:49:08,883 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:08,883 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:08,883 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:08,883 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 09:49:08,883 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 09:49:08,884 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:08,884 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 [2018-12-02 09:49:08,884 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:08,884 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 09:49:08,885 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:08,885 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:08,885 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:08,885 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 09:49:08,885 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 09:49:08,885 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:08,886 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 [2018-12-02 09:49:08,886 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:08,886 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 09:49:08,886 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:08,886 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:08,886 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:08,887 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 09:49:08,887 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 09:49:08,887 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:08,887 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 [2018-12-02 09:49:08,888 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:08,888 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 09:49:08,888 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:08,888 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:08,888 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:08,888 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 09:49:08,888 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 09:49:08,889 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:08,889 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 [2018-12-02 09:49:08,889 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:08,889 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2018-12-02 09:49:08,889 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:08,889 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:08,890 INFO L402 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2018-12-02 09:49:08,890 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 09:49:08,894 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:08,895 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 [2018-12-02 09:49:08,895 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:08,895 INFO L205 nArgumentSynthesizer]: 4 stem disjuncts [2018-12-02 09:49:08,895 INFO L206 nArgumentSynthesizer]: 6 loop disjuncts [2018-12-02 09:49:08,895 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:08,912 INFO L402 nArgumentSynthesizer]: We have 132 Motzkin's Theorem applications. [2018-12-02 09:49:08,912 INFO L403 nArgumentSynthesizer]: A total of 12 supporting invariants were added. [2018-12-02 09:49:08,990 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-02 09:49:08,990 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 [2018-12-02 09:49:08,990 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 09:49:08,990 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 09:49:08,990 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 09:49:08,990 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 09:49:08,992 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-02 09:49:08,992 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-02 09:49:08,999 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-02 09:49:09,006 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-02 09:49:09,006 INFO L444 ModelExtractionUtils]: 48 out of 52 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-02 09:49:09,006 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-02 09:49:09,007 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-12-02 09:49:09,007 INFO L518 LassoAnalysis]: Proved termination. [2018-12-02 09:49:09,007 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_3, ULTIMATE.start_cstrspn_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_3 - 1*ULTIMATE.start_cstrspn_~s~0.offset Supporting invariants [] [2018-12-02 09:49:09,095 INFO L297 tatePredicateManager]: 27 out of 28 supporting invariants were superfluous and have been removed [2018-12-02 09:49:09,097 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-02 09:49:09,110 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:49:09,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:49:09,123 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 09:49:09,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:49:09,135 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 09:49:09,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:49:09,143 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 [2018-12-02 09:49:09,144 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11 Second operand 4 states. [2018-12-02 09:49:09,170 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 41 states and 51 transitions. Complement of second has 6 states. [2018-12-02 09:49:09,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-02 09:49:09,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-02 09:49:09,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2018-12-02 09:49:09,171 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 15 letters. Loop has 3 letters. [2018-12-02 09:49:09,171 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 09:49:09,171 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-02 09:49:09,184 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:49:09,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:49:09,195 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 09:49:09,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:49:09,205 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 09:49:09,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:49:09,213 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2018-12-02 09:49:09,213 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11 Second operand 4 states. [2018-12-02 09:49:09,234 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 41 states and 51 transitions. Complement of second has 6 states. [2018-12-02 09:49:09,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-02 09:49:09,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-02 09:49:09,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2018-12-02 09:49:09,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 15 letters. Loop has 3 letters. [2018-12-02 09:49:09,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 09:49:09,235 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-02 09:49:09,250 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:49:09,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:49:09,262 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 09:49:09,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:49:09,282 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 09:49:09,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:49:09,292 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-12-02 09:49:09,292 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11 Second operand 4 states. [2018-12-02 09:49:09,313 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 41 states and 53 transitions. Complement of second has 5 states. [2018-12-02 09:49:09,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-02 09:49:09,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-02 09:49:09,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2018-12-02 09:49:09,314 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 15 letters. Loop has 3 letters. [2018-12-02 09:49:09,314 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 09:49:09,314 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 18 letters. Loop has 3 letters. [2018-12-02 09:49:09,315 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 09:49:09,315 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 15 letters. Loop has 6 letters. [2018-12-02 09:49:09,315 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 09:49:09,315 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 53 transitions. [2018-12-02 09:49:09,316 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-02 09:49:09,316 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 0 states and 0 transitions. [2018-12-02 09:49:09,316 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-02 09:49:09,316 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-02 09:49:09,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-02 09:49:09,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-02 09:49:09,316 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 09:49:09,316 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 09:49:09,316 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 09:49:09,316 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-12-02 09:49:09,316 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-02 09:49:09,317 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-02 09:49:09,317 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-02 09:49:09,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 09:49:09 BoogieIcfgContainer [2018-12-02 09:49:09,320 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-02 09:49:09,320 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 09:49:09,321 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 09:49:09,321 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 09:49:09,321 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:49:03" (3/4) ... [2018-12-02 09:49:09,323 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-02 09:49:09,323 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 09:49:09,323 INFO L168 Benchmark]: Toolchain (without parser) took 6323.55 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 226.0 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -169.5 MB). Peak memory consumption was 56.4 MB. Max. memory is 11.5 GB. [2018-12-02 09:49:09,324 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 09:49:09,324 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.21 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.6 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -125.3 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2018-12-02 09:49:09,324 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-02 09:49:09,325 INFO L168 Benchmark]: Boogie Preprocessor took 15.24 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 09:49:09,325 INFO L168 Benchmark]: RCFGBuilder took 163.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2018-12-02 09:49:09,325 INFO L168 Benchmark]: BuchiAutomizer took 5832.84 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 138.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -69.3 MB). Peak memory consumption was 69.2 MB. Max. memory is 11.5 GB. [2018-12-02 09:49:09,326 INFO L168 Benchmark]: Witness Printer took 2.47 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 09:49:09,327 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 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 282.21 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.6 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -125.3 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.24 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 163.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 5832.84 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 138.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -69.3 MB). Peak memory consumption was 69.2 MB. Max. memory is 11.5 GB. * Witness Printer took 2.47 ms. Allocated memory is still 1.3 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * sc1 + unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] and consists of 3 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] + -1 * s and consists of 4 locations. One nondeterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] + -1 * s and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.8s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 5.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 25 states and ocurred in iteration 4. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 105 SDtfs, 118 SDslu, 72 SDs, 0 SdLazy, 103 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital367 mio100 ax100 hnf99 lsp92 ukn71 mio100 lsp31 div135 bol100 ite100 ukn100 eq165 hnf76 smp92 dnf691 smp24 tf100 neg96 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 95ms VariablesStem: 7 VariablesLoop: 4 DisjunctsStem: 4 DisjunctsLoop: 6 SupportingInvariants: 12 MotzkinApplications: 132 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...