./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-memsafety/openbsd_cstrcmp-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/array-memsafety/openbsd_cstrcmp-alloca-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 f68b319d77fa756392ca29e618a1e0accd9b6c9e .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 03:53:19,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 03:53:19,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 03:53:19,158 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 03:53:19,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 03:53:19,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 03:53:19,161 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 03:53:19,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 03:53:19,165 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 03:53:19,166 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 03:53:19,167 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 03:53:19,168 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 03:53:19,169 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 03:53:19,170 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 03:53:19,171 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 03:53:19,172 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 03:53:19,173 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 03:53:19,174 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 03:53:19,176 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 03:53:19,178 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 03:53:19,180 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 03:53:19,181 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 03:53:19,183 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 03:53:19,183 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 03:53:19,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 03:53:19,187 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 03:53:19,187 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 03:53:19,188 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 03:53:19,189 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 03:53:19,190 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 03:53:19,190 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 03:53:19,191 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 03:53:19,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 03:53:19,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 03:53:19,194 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 03:53:19,195 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 03:53:19,196 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 03:53:19,197 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 03:53:19,197 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 03:53:19,198 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 03:53:19,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 03:53:19,204 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 03:53:19,234 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 03:53:19,235 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 03:53:19,237 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 03:53:19,237 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 03:53:19,238 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 03:53:19,238 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 03:53:19,238 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 03:53:19,238 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 03:53:19,239 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 03:53:19,239 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 03:53:19,240 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 03:53:19,241 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 03:53:19,241 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 03:53:19,241 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 03:53:19,242 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 03:53:19,242 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 03:53:19,242 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 03:53:19,242 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 03:53:19,243 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 03:53:19,243 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 03:53:19,244 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 03:53:19,244 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 03:53:19,244 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 03:53:19,244 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 03:53:19,245 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 03:53:19,245 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 03:53:19,245 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 03:53:19,245 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 03:53:19,246 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 03:53:19,246 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 03:53:19,247 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 03:53:19,249 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 03:53:19,250 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> f68b319d77fa756392ca29e618a1e0accd9b6c9e [2019-11-28 03:53:19,552 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 03:53:19,564 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 03:53:19,568 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 03:53:19,569 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 03:53:19,570 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 03:53:19,571 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/openbsd_cstrcmp-alloca-1.i [2019-11-28 03:53:19,643 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a76397f6a/8004702a1a13422cb6cf8225012ddbda/FLAGe1fd36fee [2019-11-28 03:53:20,158 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 03:53:20,158 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/openbsd_cstrcmp-alloca-1.i [2019-11-28 03:53:20,178 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a76397f6a/8004702a1a13422cb6cf8225012ddbda/FLAGe1fd36fee [2019-11-28 03:53:20,478 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a76397f6a/8004702a1a13422cb6cf8225012ddbda [2019-11-28 03:53:20,482 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 03:53:20,484 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 03:53:20,488 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 03:53:20,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 03:53:20,492 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 03:53:20,493 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:53:20" (1/1) ... [2019-11-28 03:53:20,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10525ad4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:20, skipping insertion in model container [2019-11-28 03:53:20,497 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:53:20" (1/1) ... [2019-11-28 03:53:20,504 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 03:53:20,550 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 03:53:20,923 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:53:20,934 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 03:53:20,988 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:53:21,040 INFO L208 MainTranslator]: Completed translation [2019-11-28 03:53:21,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:21 WrapperNode [2019-11-28 03:53:21,041 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 03:53:21,043 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 03:53:21,044 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 03:53:21,044 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 03:53:21,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:21" (1/1) ... [2019-11-28 03:53:21,075 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:21" (1/1) ... [2019-11-28 03:53:21,096 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 03:53:21,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 03:53:21,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 03:53:21,097 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 03:53:21,106 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:21" (1/1) ... [2019-11-28 03:53:21,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:21" (1/1) ... [2019-11-28 03:53:21,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:21" (1/1) ... [2019-11-28 03:53:21,110 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:21" (1/1) ... [2019-11-28 03:53:21,117 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:21" (1/1) ... [2019-11-28 03:53:21,121 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:21" (1/1) ... [2019-11-28 03:53:21,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:21" (1/1) ... [2019-11-28 03:53:21,126 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 03:53:21,127 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 03:53:21,127 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 03:53:21,127 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 03:53:21,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:21" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:21,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 03:53:21,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 03:53:21,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 03:53:21,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 03:53:21,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 03:53:21,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 03:53:21,562 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 03:53:21,563 INFO L297 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-28 03:53:21,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:53:21 BoogieIcfgContainer [2019-11-28 03:53:21,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 03:53:21,565 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 03:53:21,565 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 03:53:21,568 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 03:53:21,569 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:53:21,569 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:53:20" (1/3) ... [2019-11-28 03:53:21,570 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c522f64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:53:21, skipping insertion in model container [2019-11-28 03:53:21,570 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:53:21,570 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:21" (2/3) ... [2019-11-28 03:53:21,573 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c522f64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:53:21, skipping insertion in model container [2019-11-28 03:53:21,573 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:53:21,573 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:53:21" (3/3) ... [2019-11-28 03:53:21,576 INFO L371 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrcmp-alloca-1.i [2019-11-28 03:53:21,621 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 03:53:21,621 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 03:53:21,621 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 03:53:21,621 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 03:53:21,622 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 03:53:21,622 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 03:53:21,622 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 03:53:21,622 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 03:53:21,634 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states. [2019-11-28 03:53:21,657 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2019-11-28 03:53:21,657 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:53:21,657 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:53:21,664 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-28 03:53:21,665 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 03:53:21,665 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 03:53:21,665 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states. [2019-11-28 03:53:21,667 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2019-11-28 03:53:21,667 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:53:21,668 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:53:21,668 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-28 03:53:21,668 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 03:53:21,675 INFO L794 eck$LassoCheckResult]: Stem: 14#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 13#L-1true havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 6#L524true assume !(main_~length1~0 < 1); 12#L524-2true assume !(main_~length2~0 < 1); 3#L527-1true call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 16#L533-3true [2019-11-28 03:53:21,676 INFO L796 eck$LassoCheckResult]: Loop: 16#L533-3true assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 15#L533-2true main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 16#L533-3true [2019-11-28 03:53:21,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:21,681 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2019-11-28 03:53:21,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:21,689 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311464604] [2019-11-28 03:53:21,689 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:21,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:21,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:21,816 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:21,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:21,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2019-11-28 03:53:21,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:21,818 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210251778] [2019-11-28 03:53:21,818 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:21,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:21,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:21,836 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:21,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:21,838 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2019-11-28 03:53:21,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:21,839 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413154858] [2019-11-28 03:53:21,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:21,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:21,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:21,891 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:22,134 WARN L192 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-11-28 03:53:22,219 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:53:22,220 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:53:22,221 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:53:22,221 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:53:22,221 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:53:22,221 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:22,222 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:53:22,222 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:53:22,222 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrcmp-alloca-1.i_Iteration1_Lasso [2019-11-28 03:53:22,223 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:53:22,223 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:53:22,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:22,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:22,266 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:22,269 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:22,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:22,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:22,282 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:22,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:22,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:22,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:22,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:22,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:22,311 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:22,461 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2019-11-28 03:53:22,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:22,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:22,825 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:53:22,831 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:22,839 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:22,842 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:22,842 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:22,843 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:22,843 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:22,843 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:22,846 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:22,846 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:22,850 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 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 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:22,866 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:22,868 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:22,869 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:22,869 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:22,869 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:22,869 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:22,870 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:22,870 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:22,874 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:22,887 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:22,889 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:22,889 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:22,890 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:22,890 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:22,890 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:22,892 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:22,892 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:22,904 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:22,930 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:22,931 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:22,932 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:22,932 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:22,932 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:22,938 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:22,938 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:53:22,943 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:22,960 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:22,962 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:22,963 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:22,963 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:22,963 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:22,968 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:22,968 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:22,976 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:22,993 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:22,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:22,995 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:22,996 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:22,996 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:22,996 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:22,997 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:22,998 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:23,001 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:23,018 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:23,021 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:23,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:23,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:23,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:23,030 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:23,030 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:23,037 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:23,046 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:23,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:23,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:23,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:23,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:23,057 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:23,058 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:53:23,064 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:23,077 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:23,079 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:23,079 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:23,080 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:23,082 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:23,082 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:23,083 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:23,083 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:23,085 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:23,100 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:23,102 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:23,102 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:23,103 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:23,103 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:23,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:23,104 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:23,104 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:23,106 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:23,114 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:23,119 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:23,119 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:23,119 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:23,119 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:23,122 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:23,123 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:53:23,127 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:23,143 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:23,145 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:23,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:23,146 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:23,146 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:23,150 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:23,150 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:23,155 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:23,171 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:23,173 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:23,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:23,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:23,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:23,179 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:23,179 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:53:23,184 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:23,205 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:23,209 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:23,209 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:23,209 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:23,209 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:23,212 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:23,212 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:23,218 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:23,234 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:23,236 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:23,236 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:23,237 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:23,237 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:23,237 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:23,238 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:23,238 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:23,240 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:23,252 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:23,254 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:23,255 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:23,255 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:23,255 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:23,268 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:23,268 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:53:23,281 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:53:23,361 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2019-11-28 03:53:23,361 INFO L444 ModelExtractionUtils]: 8 out of 22 variables were initially zero. Simplification set additionally 11 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:23,376 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:23,380 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-28 03:53:23,381 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:53:23,382 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~length1~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-11-28 03:53:23,436 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2019-11-28 03:53:23,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:23,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:53:23,491 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 03:53:23,492 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:53:23,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:53:23,507 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 03:53:23,508 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:53:23,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:53:23,540 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 [2019-11-28 03:53:23,541 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states. Second operand 3 states. [2019-11-28 03:53:23,601 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states.. Second operand 3 states. Result 45 states and 64 transitions. Complement of second has 7 states. [2019-11-28 03:53:23,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-28 03:53:23,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 03:53:23,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 43 transitions. [2019-11-28 03:53:23,607 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-28 03:53:23,608 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:53:23,608 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-28 03:53:23,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:53:23,609 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 5 letters. Loop has 4 letters. [2019-11-28 03:53:23,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:53:23,610 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 64 transitions. [2019-11-28 03:53:23,614 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-11-28 03:53:23,619 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 15 states and 20 transitions. [2019-11-28 03:53:23,620 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2019-11-28 03:53:23,620 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2019-11-28 03:53:23,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 20 transitions. [2019-11-28 03:53:23,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:53:23,622 INFO L688 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2019-11-28 03:53:23,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 20 transitions. [2019-11-28 03:53:23,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-11-28 03:53:23,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-28 03:53:23,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2019-11-28 03:53:23,653 INFO L711 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2019-11-28 03:53:23,654 INFO L591 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2019-11-28 03:53:23,654 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 03:53:23,654 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2019-11-28 03:53:23,655 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-11-28 03:53:23,655 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:53:23,655 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:53:23,656 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:53:23,656 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 03:53:23,656 INFO L794 eck$LassoCheckResult]: Stem: 149#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 146#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 142#L524 assume !(main_~length1~0 < 1); 143#L524-2 assume !(main_~length2~0 < 1); 136#L527-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 137#L533-3 assume !(main_~i~0 < main_~length1~0 - 1); 150#L533-4 main_~i~1 := 0; 141#L537-3 [2019-11-28 03:53:23,656 INFO L796 eck$LassoCheckResult]: Loop: 141#L537-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet17, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet17; 140#L537-2 main_#t~post16 := main_~i~1;main_~i~1 := 1 + main_#t~post16;havoc main_#t~post16; 141#L537-3 [2019-11-28 03:53:23,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:23,657 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935662, now seen corresponding path program 1 times [2019-11-28 03:53:23,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:23,657 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179244380] [2019-11-28 03:53:23,657 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:23,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:23,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:23,709 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:23,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:23,715 INFO L82 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 1 times [2019-11-28 03:53:23,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:23,716 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771918481] [2019-11-28 03:53:23,718 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:23,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:23,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:23,747 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:23,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:23,748 INFO L82 PathProgramCache]: Analyzing trace with hash 1298384784, now seen corresponding path program 1 times [2019-11-28 03:53:23,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:23,749 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836873761] [2019-11-28 03:53:23,749 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:23,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:23,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:23,820 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:24,076 WARN L192 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-11-28 03:53:24,140 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:53:24,140 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:53:24,140 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:53:24,140 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:53:24,140 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:53:24,140 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:24,140 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:53:24,141 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:53:24,141 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrcmp-alloca-1.i_Iteration2_Lasso [2019-11-28 03:53:24,141 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:53:24,141 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:53:24,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:24,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:24,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:24,293 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2019-11-28 03:53:24,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:24,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:24,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:24,344 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:24,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:24,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:24,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:24,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:24,364 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:24,368 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:24,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:24,682 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:53:24,683 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:24,694 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:24,697 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:24,697 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:24,698 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:24,698 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:24,698 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:24,699 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:24,699 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:24,701 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:24,718 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:24,720 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:24,721 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:24,721 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:24,721 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:24,721 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:24,722 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:24,722 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:24,724 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:24,749 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:24,752 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:24,753 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:24,753 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:24,753 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:24,757 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:24,758 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:24,764 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:24,773 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:24,775 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:24,775 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:24,776 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:24,776 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:24,785 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:24,786 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:24,802 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:53:24,844 INFO L443 ModelExtractionUtils]: Simplification made 20 calls to the SMT solver. [2019-11-28 03:53:24,844 INFO L444 ModelExtractionUtils]: 8 out of 22 variables were initially zero. Simplification set additionally 10 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:24,850 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:24,852 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-28 03:53:24,853 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:53:24,853 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1, v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_2) = -1*ULTIMATE.start_main_~i~1 + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_2 Supporting invariants [1*ULTIMATE.start_main_~nondetString2~0.offset >= 0] [2019-11-28 03:53:24,875 INFO L297 tatePredicateManager]: 5 out of 7 supporting invariants were superfluous and have been removed [2019-11-28 03:53:24,880 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-28 03:53:24,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:24,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:53:24,924 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 03:53:24,925 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:53:24,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:53:24,953 WARN L253 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-28 03:53:24,953 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:53:24,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:53:24,972 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 [2019-11-28 03:53:24,972 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand 4 states. [2019-11-28 03:53:25,036 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand 4 states. Result 21 states and 30 transitions. Complement of second has 7 states. [2019-11-28 03:53:25,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-28 03:53:25,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-28 03:53:25,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2019-11-28 03:53:25,038 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-28 03:53:25,038 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:53:25,038 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 9 letters. Loop has 2 letters. [2019-11-28 03:53:25,039 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:53:25,039 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 7 letters. Loop has 4 letters. [2019-11-28 03:53:25,039 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:53:25,039 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 30 transitions. [2019-11-28 03:53:25,041 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 03:53:25,042 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 16 states and 22 transitions. [2019-11-28 03:53:25,042 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2019-11-28 03:53:25,042 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2019-11-28 03:53:25,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 22 transitions. [2019-11-28 03:53:25,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:53:25,043 INFO L688 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2019-11-28 03:53:25,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 22 transitions. [2019-11-28 03:53:25,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-28 03:53:25,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-28 03:53:25,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 22 transitions. [2019-11-28 03:53:25,046 INFO L711 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2019-11-28 03:53:25,046 INFO L591 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2019-11-28 03:53:25,046 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 03:53:25,046 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 22 transitions. [2019-11-28 03:53:25,047 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 03:53:25,047 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:53:25,047 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:53:25,048 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:53:25,048 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 03:53:25,048 INFO L794 eck$LassoCheckResult]: Stem: 271#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 268#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~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, 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; 263#L524 assume !(main_~length1~0 < 1); 264#L524-2 assume !(main_~length2~0 < 1); 257#L527-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(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.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 258#L533-3 assume !(main_~i~0 < main_~length1~0 - 1); 272#L533-4 main_~i~1 := 0; 266#L537-3 assume !(main_~i~1 < main_~length2~0 - 1); 267#L537-4 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);cstrcmp_#in~s1.base, cstrcmp_#in~s1.offset, cstrcmp_#in~s2.base, cstrcmp_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcmp_#res;havoc cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset, cstrcmp_#t~mem6, cstrcmp_#t~mem3, cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset, cstrcmp_#t~mem4, cstrcmp_#t~mem8, cstrcmp_#t~pre7.base, cstrcmp_#t~pre7.offset, cstrcmp_#t~mem9, cstrcmp_~s1.base, cstrcmp_~s1.offset, cstrcmp_~s2.base, cstrcmp_~s2.offset;cstrcmp_~s1.base, cstrcmp_~s1.offset := cstrcmp_#in~s1.base, cstrcmp_#in~s1.offset;cstrcmp_~s2.base, cstrcmp_~s2.offset := cstrcmp_#in~s2.base, cstrcmp_#in~s2.offset; 265#L516-3 [2019-11-28 03:53:25,049 INFO L796 eck$LassoCheckResult]: Loop: 265#L516-3 call cstrcmp_#t~mem3 := read~int(cstrcmp_~s1.base, cstrcmp_~s1.offset, 1);cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset := cstrcmp_~s2.base, cstrcmp_~s2.offset;cstrcmp_~s2.base, cstrcmp_~s2.offset := cstrcmp_#t~post2.base, 1 + cstrcmp_#t~post2.offset;call cstrcmp_#t~mem4 := read~int(cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset, 1); 259#L516-1 assume !!(cstrcmp_#t~mem3 == cstrcmp_#t~mem4);havoc cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset;havoc cstrcmp_#t~mem3;havoc cstrcmp_#t~mem4;cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset := cstrcmp_~s1.base, cstrcmp_~s1.offset;cstrcmp_~s1.base, cstrcmp_~s1.offset := cstrcmp_#t~post5.base, 1 + cstrcmp_#t~post5.offset;call cstrcmp_#t~mem6 := read~int(cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset, 1); 260#L517 assume !(0 == cstrcmp_#t~mem6);havoc cstrcmp_#t~mem6;havoc cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset; 265#L516-3 [2019-11-28 03:53:25,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:25,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1298384726, now seen corresponding path program 1 times [2019-11-28 03:53:25,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:25,050 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510384851] [2019-11-28 03:53:25,050 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:25,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:25,100 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:25,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:25,103 INFO L82 PathProgramCache]: Analyzing trace with hash 77620, now seen corresponding path program 1 times [2019-11-28 03:53:25,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:25,104 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977526938] [2019-11-28 03:53:25,104 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:25,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:25,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:25,139 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:25,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:25,142 INFO L82 PathProgramCache]: Analyzing trace with hash -296047681, now seen corresponding path program 1 times [2019-11-28 03:53:25,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:25,143 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436352453] [2019-11-28 03:53:25,144 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:25,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:53:25,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:53:25,409 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436352453] [2019-11-28 03:53:25,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:53:25,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-28 03:53:25,410 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682354280] [2019-11-28 03:53:25,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:53:25,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 03:53:25,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-28 03:53:25,548 INFO L87 Difference]: Start difference. First operand 16 states and 22 transitions. cyclomatic complexity: 9 Second operand 7 states. [2019-11-28 03:53:25,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:53:25,672 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2019-11-28 03:53:25,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 03:53:25,672 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 32 transitions. [2019-11-28 03:53:25,674 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 03:53:25,677 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 17 states and 22 transitions. [2019-11-28 03:53:25,678 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2019-11-28 03:53:25,678 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2019-11-28 03:53:25,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2019-11-28 03:53:25,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:53:25,679 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2019-11-28 03:53:25,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2019-11-28 03:53:25,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-11-28 03:53:25,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-28 03:53:25,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2019-11-28 03:53:25,682 INFO L711 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2019-11-28 03:53:25,682 INFO L591 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2019-11-28 03:53:25,683 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 03:53:25,683 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2019-11-28 03:53:25,684 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 03:53:25,684 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:53:25,684 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:53:25,685 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:53:25,685 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 03:53:25,685 INFO L794 eck$LassoCheckResult]: Stem: 328#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 325#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~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, 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; 320#L524 assume !(main_~length1~0 < 1); 321#L524-2 assume !(main_~length2~0 < 1); 314#L527-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(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.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 315#L533-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 326#L533-2 main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 327#L533-3 assume !(main_~i~0 < main_~length1~0 - 1); 329#L533-4 main_~i~1 := 0; 323#L537-3 assume !(main_~i~1 < main_~length2~0 - 1); 324#L537-4 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);cstrcmp_#in~s1.base, cstrcmp_#in~s1.offset, cstrcmp_#in~s2.base, cstrcmp_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcmp_#res;havoc cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset, cstrcmp_#t~mem6, cstrcmp_#t~mem3, cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset, cstrcmp_#t~mem4, cstrcmp_#t~mem8, cstrcmp_#t~pre7.base, cstrcmp_#t~pre7.offset, cstrcmp_#t~mem9, cstrcmp_~s1.base, cstrcmp_~s1.offset, cstrcmp_~s2.base, cstrcmp_~s2.offset;cstrcmp_~s1.base, cstrcmp_~s1.offset := cstrcmp_#in~s1.base, cstrcmp_#in~s1.offset;cstrcmp_~s2.base, cstrcmp_~s2.offset := cstrcmp_#in~s2.base, cstrcmp_#in~s2.offset; 322#L516-3 [2019-11-28 03:53:25,685 INFO L796 eck$LassoCheckResult]: Loop: 322#L516-3 call cstrcmp_#t~mem3 := read~int(cstrcmp_~s1.base, cstrcmp_~s1.offset, 1);cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset := cstrcmp_~s2.base, cstrcmp_~s2.offset;cstrcmp_~s2.base, cstrcmp_~s2.offset := cstrcmp_#t~post2.base, 1 + cstrcmp_#t~post2.offset;call cstrcmp_#t~mem4 := read~int(cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset, 1); 316#L516-1 assume !!(cstrcmp_#t~mem3 == cstrcmp_#t~mem4);havoc cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset;havoc cstrcmp_#t~mem3;havoc cstrcmp_#t~mem4;cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset := cstrcmp_~s1.base, cstrcmp_~s1.offset;cstrcmp_~s1.base, cstrcmp_~s1.offset := cstrcmp_#t~post5.base, 1 + cstrcmp_#t~post5.offset;call cstrcmp_#t~mem6 := read~int(cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset, 1); 317#L517 assume !(0 == cstrcmp_#t~mem6);havoc cstrcmp_#t~mem6;havoc cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset; 322#L516-3 [2019-11-28 03:53:25,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:25,686 INFO L82 PathProgramCache]: Analyzing trace with hash -2034626632, now seen corresponding path program 1 times [2019-11-28 03:53:25,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:25,687 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567635319] [2019-11-28 03:53:25,687 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:25,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:25,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:25,763 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:25,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:25,766 INFO L82 PathProgramCache]: Analyzing trace with hash 77620, now seen corresponding path program 2 times [2019-11-28 03:53:25,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:25,766 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956907849] [2019-11-28 03:53:25,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:25,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:25,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:25,793 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:25,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:25,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1311502365, now seen corresponding path program 1 times [2019-11-28 03:53:25,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:25,794 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271393666] [2019-11-28 03:53:25,794 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:25,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:53:26,054 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-28 03:53:26,055 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271393666] [2019-11-28 03:53:26,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:53:26,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-28 03:53:26,056 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912792350] [2019-11-28 03:53:26,162 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2019-11-28 03:53:26,209 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:53:26,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-28 03:53:26,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-28 03:53:26,210 INFO L87 Difference]: Start difference. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand 9 states. [2019-11-28 03:53:26,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:53:26,344 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2019-11-28 03:53:26,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-28 03:53:26,345 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 25 transitions. [2019-11-28 03:53:26,347 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 03:53:26,347 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 17 states and 21 transitions. [2019-11-28 03:53:26,348 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2019-11-28 03:53:26,348 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2019-11-28 03:53:26,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 21 transitions. [2019-11-28 03:53:26,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:53:26,348 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-11-28 03:53:26,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 21 transitions. [2019-11-28 03:53:26,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-11-28 03:53:26,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-28 03:53:26,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2019-11-28 03:53:26,350 INFO L711 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2019-11-28 03:53:26,351 INFO L591 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2019-11-28 03:53:26,351 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-28 03:53:26,351 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 20 transitions. [2019-11-28 03:53:26,351 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 03:53:26,352 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:53:26,352 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:53:26,352 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:53:26,352 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 03:53:26,353 INFO L794 eck$LassoCheckResult]: Stem: 383#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 382#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~nondet15, main_#t~post14, main_~i~0, main_#t~nondet17, main_#t~post16, main_~i~1, main_#t~ret18, 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; 377#L524 assume !(main_~length1~0 < 1); 378#L524-2 assume !(main_~length2~0 < 1); 371#L527-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(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.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;main_~i~0 := 0; 372#L533-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet15, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet15; 384#L533-2 main_#t~post14 := main_~i~0;main_~i~0 := 1 + main_#t~post14;havoc main_#t~post14; 385#L533-3 assume !(main_~i~0 < main_~length1~0 - 1); 386#L533-4 main_~i~1 := 0; 380#L537-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet17, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet17; 375#L537-2 main_#t~post16 := main_~i~1;main_~i~1 := 1 + main_#t~post16;havoc main_#t~post16; 376#L537-3 assume !(main_~i~1 < main_~length2~0 - 1); 381#L537-4 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);cstrcmp_#in~s1.base, cstrcmp_#in~s1.offset, cstrcmp_#in~s2.base, cstrcmp_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcmp_#res;havoc cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset, cstrcmp_#t~mem6, cstrcmp_#t~mem3, cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset, cstrcmp_#t~mem4, cstrcmp_#t~mem8, cstrcmp_#t~pre7.base, cstrcmp_#t~pre7.offset, cstrcmp_#t~mem9, cstrcmp_~s1.base, cstrcmp_~s1.offset, cstrcmp_~s2.base, cstrcmp_~s2.offset;cstrcmp_~s1.base, cstrcmp_~s1.offset := cstrcmp_#in~s1.base, cstrcmp_#in~s1.offset;cstrcmp_~s2.base, cstrcmp_~s2.offset := cstrcmp_#in~s2.base, cstrcmp_#in~s2.offset; 379#L516-3 [2019-11-28 03:53:26,353 INFO L796 eck$LassoCheckResult]: Loop: 379#L516-3 call cstrcmp_#t~mem3 := read~int(cstrcmp_~s1.base, cstrcmp_~s1.offset, 1);cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset := cstrcmp_~s2.base, cstrcmp_~s2.offset;cstrcmp_~s2.base, cstrcmp_~s2.offset := cstrcmp_#t~post2.base, 1 + cstrcmp_#t~post2.offset;call cstrcmp_#t~mem4 := read~int(cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset, 1); 373#L516-1 assume !!(cstrcmp_#t~mem3 == cstrcmp_#t~mem4);havoc cstrcmp_#t~post2.base, cstrcmp_#t~post2.offset;havoc cstrcmp_#t~mem3;havoc cstrcmp_#t~mem4;cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset := cstrcmp_~s1.base, cstrcmp_~s1.offset;cstrcmp_~s1.base, cstrcmp_~s1.offset := cstrcmp_#t~post5.base, 1 + cstrcmp_#t~post5.offset;call cstrcmp_#t~mem6 := read~int(cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset, 1); 374#L517 assume !(0 == cstrcmp_#t~mem6);havoc cstrcmp_#t~mem6;havoc cstrcmp_#t~post5.base, cstrcmp_#t~post5.offset; 379#L516-3 [2019-11-28 03:53:26,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:26,353 INFO L82 PathProgramCache]: Analyzing trace with hash -1066016806, now seen corresponding path program 1 times [2019-11-28 03:53:26,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:26,354 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877214973] [2019-11-28 03:53:26,354 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:26,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:26,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:26,380 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:26,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:26,381 INFO L82 PathProgramCache]: Analyzing trace with hash 77620, now seen corresponding path program 3 times [2019-11-28 03:53:26,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:26,381 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782429899] [2019-11-28 03:53:26,381 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:26,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:26,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:26,391 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:26,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:26,392 INFO L82 PathProgramCache]: Analyzing trace with hash -718433093, now seen corresponding path program 1 times [2019-11-28 03:53:26,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:26,392 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99482921] [2019-11-28 03:53:26,393 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:26,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:26,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:26,425 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:27,027 WARN L192 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 108 [2019-11-28 03:53:27,205 WARN L192 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2019-11-28 03:53:27,214 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:53:27,214 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:53:27,214 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:53:27,214 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:53:27,215 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:53:27,215 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:27,215 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:53:27,215 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:53:27,215 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrcmp-alloca-1.i_Iteration5_Lasso [2019-11-28 03:53:27,215 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:53:27,215 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:53:27,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:27,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:27,233 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:27,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:27,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:27,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:27,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:27,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:27,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:27,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:27,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:27,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:27,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:27,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:27,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:27,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:27,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:27,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:27,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:27,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:27,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:27,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:27,763 WARN L192 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 83 [2019-11-28 03:53:27,976 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2019-11-28 03:53:27,977 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:27,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:27,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:27,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:53:28,688 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:53:28,689 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:28,697 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:28,699 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:28,699 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:28,699 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:28,699 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:28,699 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:28,704 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:28,704 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:28,706 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:28,717 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:28,718 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:28,718 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:28,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:28,719 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:28,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:28,719 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:28,719 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:28,721 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:28,727 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:28,729 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:28,729 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:28,729 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:28,729 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:28,729 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:28,730 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:28,730 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:28,731 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:28,737 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:28,739 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:28,739 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:28,739 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:28,739 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:28,741 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:28,741 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:28,744 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:28,754 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:28,755 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:28,756 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:28,756 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:28,756 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:28,756 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:28,757 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:28,757 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:28,758 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:28,765 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:28,767 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:28,767 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:28,767 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:28,767 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:28,767 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:28,768 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:28,768 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:28,770 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:28,777 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:28,778 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:28,778 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:28,778 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:28,778 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:28,778 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:28,779 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:28,779 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:28,784 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:28,796 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:28,798 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:28,798 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:28,798 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:28,798 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:28,798 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:28,799 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:28,799 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:28,801 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:28,809 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:28,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:28,810 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:28,811 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:28,811 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:28,811 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:28,811 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:28,811 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:28,813 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:28,822 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:28,823 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:28,823 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:28,823 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:28,824 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:28,824 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:28,824 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:28,824 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:28,826 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:28,832 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:28,835 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:28,835 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:28,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:28,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:28,835 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:28,836 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:28,836 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:28,839 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:28,848 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:28,849 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:28,849 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:28,850 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:28,850 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:28,850 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:28,850 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:28,850 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:28,852 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:28,861 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:28,862 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:28,863 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:28,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:28,863 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:28,863 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:28,864 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:28,864 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:28,867 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 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 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:28,873 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:28,874 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:28,874 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:28,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:28,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:28,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:28,875 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:28,876 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:28,877 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 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 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:28,883 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:28,884 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:28,884 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:28,885 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:28,885 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:28,886 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:28,887 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:53:28,891 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:28,901 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:28,903 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:28,903 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:28,903 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:28,903 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:28,903 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:28,904 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:28,904 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:28,913 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 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 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:28,919 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:28,921 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:28,921 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:28,921 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:28,921 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:28,923 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:28,923 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:53:28,927 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:28,937 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:28,938 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:28,938 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:28,939 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:28,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:28,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:28,939 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:28,939 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:28,941 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:28,947 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:28,948 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:28,948 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:28,948 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:28,948 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:28,948 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:28,950 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:28,950 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:28,952 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 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 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:28,958 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:28,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:28,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:28,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:28,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:28,963 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:28,963 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:53:28,967 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 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 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:28,974 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:28,975 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:28,975 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:28,976 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:28,976 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:28,976 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:28,976 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:28,976 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:28,977 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 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 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:28,982 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:28,984 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:28,984 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:28,984 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:28,984 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:28,994 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:28,994 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:53:29,008 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:29,019 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:29,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:29,020 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:29,020 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:29,021 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:29,024 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:29,024 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:29,030 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:29,037 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:29,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:29,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:29,038 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:29,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:29,040 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:29,040 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:29,043 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:29,050 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:29,051 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:29,051 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:29,051 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:29,051 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:29,053 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:29,053 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:29,056 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:29,063 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:29,064 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:29,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:29,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:29,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:29,067 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:29,067 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:29,074 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:29,080 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:29,081 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:29,082 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:29,082 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:29,082 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:29,083 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:29,083 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:29,087 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:29,093 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:29,095 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:29,095 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:29,095 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-28 03:53:29,095 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:29,102 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2019-11-28 03:53:29,103 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:29,117 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 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 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:29,123 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:53:29,124 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:29,125 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:29,125 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:29,125 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:29,137 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:29,137 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:53:29,167 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:53:29,285 INFO L443 ModelExtractionUtils]: Simplification made 22 calls to the SMT solver. [2019-11-28 03:53:29,286 INFO L444 ModelExtractionUtils]: 13 out of 49 variables were initially zero. Simplification set additionally 33 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:29,290 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:29,293 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-28 03:53:29,294 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:53:29,294 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_cstrcmp_~s1.base)_1, ULTIMATE.start_cstrcmp_~s1.offset) = 1*v_rep(select #length ULTIMATE.start_cstrcmp_~s1.base)_1 - 1*ULTIMATE.start_cstrcmp_~s1.offset Supporting invariants [] [2019-11-28 03:53:29,385 INFO L297 tatePredicateManager]: 22 out of 22 supporting invariants were superfluous and have been removed [2019-11-28 03:53:29,387 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-28 03:53:29,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:29,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:53:29,431 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 03:53:29,433 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:53:29,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:53:29,446 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-28 03:53:29,446 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:53:29,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:53:29,477 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-28 03:53:29,477 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 7 Second operand 4 states. [2019-11-28 03:53:29,499 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 7. Second operand 4 states. Result 20 states and 24 transitions. Complement of second has 6 states. [2019-11-28 03:53:29,500 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-28 03:53:29,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-28 03:53:29,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2019-11-28 03:53:29,501 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 13 letters. Loop has 3 letters. [2019-11-28 03:53:29,501 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:53:29,501 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 16 letters. Loop has 3 letters. [2019-11-28 03:53:29,502 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:53:29,502 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 13 letters. Loop has 6 letters. [2019-11-28 03:53:29,502 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:53:29,503 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 24 transitions. [2019-11-28 03:53:29,504 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 03:53:29,505 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 0 states and 0 transitions. [2019-11-28 03:53:29,505 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-28 03:53:29,505 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-28 03:53:29,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-28 03:53:29,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:53:29,505 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:53:29,506 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:53:29,507 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:53:29,507 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-28 03:53:29,508 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-28 03:53:29,508 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 03:53:29,508 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-28 03:53:29,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:53:29 BoogieIcfgContainer [2019-11-28 03:53:29,515 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 03:53:29,516 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 03:53:29,517 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 03:53:29,517 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 03:53:29,518 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:53:21" (3/4) ... [2019-11-28 03:53:29,521 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 03:53:29,522 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 03:53:29,529 INFO L168 Benchmark]: Toolchain (without parser) took 9039.93 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 296.2 MB). Free memory was 955.0 MB in the beginning and 835.7 MB in the end (delta: 119.3 MB). Peak memory consumption was 415.5 MB. Max. memory is 11.5 GB. [2019-11-28 03:53:29,530 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:53:29,537 INFO L168 Benchmark]: CACSL2BoogieTranslator took 554.67 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -137.7 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2019-11-28 03:53:29,538 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.03 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-28 03:53:29,538 INFO L168 Benchmark]: Boogie Preprocessor took 29.51 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. [2019-11-28 03:53:29,540 INFO L168 Benchmark]: RCFGBuilder took 437.47 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: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. [2019-11-28 03:53:29,542 INFO L168 Benchmark]: BuchiAutomizer took 7950.98 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 185.6 MB). Free memory was 1.1 GB in the beginning and 835.7 MB in the end (delta: 225.2 MB). Peak memory consumption was 410.8 MB. Max. memory is 11.5 GB. [2019-11-28 03:53:29,542 INFO L168 Benchmark]: Witness Printer took 5.34 ms. Allocated memory is still 1.3 GB. Free memory is still 835.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:53:29,549 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 554.67 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -137.7 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.03 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.51 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 437.47 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: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 7950.98 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 185.6 MB). Free memory was 1.1 GB in the beginning and 835.7 MB in the end (delta: 225.2 MB). Peak memory consumption was 410.8 MB. Max. memory is 11.5 GB. * Witness Printer took 5.34 ms. Allocated memory is still 1.3 GB. Free memory is still 835.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - 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, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function length1 + -1 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * i + unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[s1] + -1 * s1 and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.9s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 7.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 16 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 68 SDtfs, 116 SDslu, 101 SDs, 0 SdLazy, 106 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital198 mio100 ax110 hnf98 lsp84 ukn73 mio100 lsp49 div100 bol100 ite100 ukn100 eq178 hnf89 smp100 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 28ms VariablesStem: 6 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 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...