./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-memsafety/openbsd_cstrncat-alloca-2.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_cstrncat-alloca-2.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 bea41ba7ef8afa8e6ccd1150cee95a00bf0377da ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 03:53:26,206 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 03:53:26,209 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 03:53:26,227 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 03:53:26,227 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 03:53:26,230 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 03:53:26,232 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 03:53:26,234 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 03:53:26,235 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 03:53:26,237 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 03:53:26,238 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 03:53:26,239 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 03:53:26,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 03:53:26,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 03:53:26,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 03:53:26,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 03:53:26,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 03:53:26,247 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 03:53:26,250 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 03:53:26,253 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 03:53:26,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 03:53:26,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 03:53:26,263 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 03:53:26,264 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 03:53:26,269 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 03:53:26,269 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 03:53:26,270 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 03:53:26,271 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 03:53:26,272 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 03:53:26,273 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 03:53:26,274 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 03:53:26,275 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 03:53:26,276 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 03:53:26,277 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 03:53:26,282 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 03:53:26,282 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 03:53:26,284 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 03:53:26,284 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 03:53:26,284 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 03:53:26,287 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 03:53:26,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 03:53:26,289 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 03:53:26,317 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 03:53:26,317 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 03:53:26,320 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 03:53:26,321 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 03:53:26,322 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 03:53:26,322 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 03:53:26,322 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 03:53:26,323 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 03:53:26,323 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 03:53:26,323 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 03:53:26,325 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 03:53:26,325 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 03:53:26,325 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 03:53:26,326 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 03:53:26,326 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 03:53:26,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 03:53:26,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 03:53:26,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 03:53:26,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 03:53:26,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 03:53:26,328 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 03:53:26,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 03:53:26,328 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 03:53:26,329 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 03:53:26,329 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 03:53:26,329 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 03:53:26,330 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 03:53:26,330 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 03:53:26,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 03:53:26,331 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 03:53:26,331 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 03:53:26,333 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 03:53:26,334 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 -> bea41ba7ef8afa8e6ccd1150cee95a00bf0377da [2019-11-28 03:53:26,666 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 03:53:26,680 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 03:53:26,684 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 03:53:26,686 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 03:53:26,686 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 03:53:26,687 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/openbsd_cstrncat-alloca-2.i [2019-11-28 03:53:26,762 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cba117531/bf5f998cf67f417dae953985ccd421ab/FLAG31afd5b6a [2019-11-28 03:53:27,332 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 03:53:27,333 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/openbsd_cstrncat-alloca-2.i [2019-11-28 03:53:27,353 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cba117531/bf5f998cf67f417dae953985ccd421ab/FLAG31afd5b6a [2019-11-28 03:53:27,642 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cba117531/bf5f998cf67f417dae953985ccd421ab [2019-11-28 03:53:27,646 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 03:53:27,648 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 03:53:27,650 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 03:53:27,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 03:53:27,653 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 03:53:27,654 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:53:27" (1/1) ... [2019-11-28 03:53:27,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f7ce7e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:27, skipping insertion in model container [2019-11-28 03:53:27,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:53:27" (1/1) ... [2019-11-28 03:53:27,665 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 03:53:27,711 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 03:53:28,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:53:28,146 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 03:53:28,201 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:53:28,250 INFO L208 MainTranslator]: Completed translation [2019-11-28 03:53:28,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:28 WrapperNode [2019-11-28 03:53:28,251 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 03:53:28,252 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 03:53:28,252 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 03:53:28,253 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 03:53:28,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:28" (1/1) ... [2019-11-28 03:53:28,288 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:28" (1/1) ... [2019-11-28 03:53:28,309 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 03:53:28,310 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 03:53:28,310 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 03:53:28,310 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 03:53:28,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:28" (1/1) ... [2019-11-28 03:53:28,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:28" (1/1) ... [2019-11-28 03:53:28,321 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:28" (1/1) ... [2019-11-28 03:53:28,322 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:28" (1/1) ... [2019-11-28 03:53:28,329 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:28" (1/1) ... [2019-11-28 03:53:28,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:28" (1/1) ... [2019-11-28 03:53:28,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:28" (1/1) ... [2019-11-28 03:53:28,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 03:53:28,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 03:53:28,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 03:53:28,342 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 03:53:28,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:28" (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 03:53:28,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 03:53:28,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 03:53:28,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 03:53:28,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 03:53:28,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 03:53:28,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 03:53:28,749 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 03:53:28,749 INFO L297 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-28 03:53:28,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:53:28 BoogieIcfgContainer [2019-11-28 03:53:28,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 03:53:28,752 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 03:53:28,752 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 03:53:28,756 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 03:53:28,757 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:53:28,758 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:53:27" (1/3) ... [2019-11-28 03:53:28,759 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6868593c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:53:28, skipping insertion in model container [2019-11-28 03:53:28,759 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:53:28,760 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:53:28" (2/3) ... [2019-11-28 03:53:28,760 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6868593c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:53:28, skipping insertion in model container [2019-11-28 03:53:28,760 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:53:28,761 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:53:28" (3/3) ... [2019-11-28 03:53:28,762 INFO L371 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrncat-alloca-2.i [2019-11-28 03:53:28,818 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 03:53:28,818 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 03:53:28,819 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 03:53:28,819 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 03:53:28,819 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 03:53:28,820 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 03:53:28,820 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 03:53:28,820 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 03:53:28,834 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states. [2019-11-28 03:53:28,855 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 10 [2019-11-28 03:53:28,855 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:53:28,855 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:53:28,863 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:53:28,863 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 03:53:28,864 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 03:53:28,864 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states. [2019-11-28 03:53:28,866 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 10 [2019-11-28 03:53:28,866 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:53:28,867 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:53:28,867 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:53:28,867 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 03:53:28,874 INFO L794 eck$LassoCheckResult]: Stem: 25#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 7#L-1true havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet14, main_#t~post13, main_~i~0, main_#t~nondet16, main_#t~post15, main_~i~1, main_#t~ret17.base, main_#t~ret17.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length2~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~n~0 := main_#t~nondet10;havoc main_#t~nondet10; 22#L534true assume !(main_~length1~0 < 1); 8#L534-2true assume !(main_~length2~0 < 1); 5#L537-1true assume !(main_~n~0 < 1); 26#L540-1true assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;main_~i~0 := 0; 23#L547-3true [2019-11-28 03:53:28,874 INFO L796 eck$LassoCheckResult]: Loop: 23#L547-3true assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet14, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet14; 21#L547-2true main_#t~post13 := main_~i~0;main_~i~0 := 1 + main_#t~post13;havoc main_#t~post13; 23#L547-3true [2019-11-28 03:53:28,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:28,880 INFO L82 PathProgramCache]: Analyzing trace with hash 889572367, now seen corresponding path program 1 times [2019-11-28 03:53:28,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:28,887 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026974633] [2019-11-28 03:53:28,887 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:28,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:29,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:29,028 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:29,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:29,029 INFO L82 PathProgramCache]: Analyzing trace with hash 2019, now seen corresponding path program 1 times [2019-11-28 03:53:29,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:29,030 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652053231] [2019-11-28 03:53:29,030 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:29,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:29,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:29,055 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:29,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:29,058 INFO L82 PathProgramCache]: Analyzing trace with hash 180553841, now seen corresponding path program 1 times [2019-11-28 03:53:29,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:29,058 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439111023] [2019-11-28 03:53:29,059 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:29,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:29,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:29,109 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:29,430 WARN L192 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-11-28 03:53:29,537 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:53:29,538 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:53:29,538 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:53:29,538 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:53:29,538 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:53:29,539 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:29,539 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:53:29,539 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:53:29,539 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrncat-alloca-2.i_Iteration1_Lasso [2019-11-28 03:53:29,539 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:53:29,540 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:53:29,563 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 03:53:29,573 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 03:53:29,576 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 03:53:29,583 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 03:53:29,589 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 03:53:29,757 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 03:53:29,761 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 03:53:29,764 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 03:53:29,767 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 03:53:29,770 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 03:53:29,772 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 03:53:29,775 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 03:53:29,777 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 03:53:29,780 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 03:53:29,784 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 03:53:29,786 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 03:53:29,789 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 03:53:30,127 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:53:30,134 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 03:53:30,142 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 03:53:30,145 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:30,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:30,146 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:30,146 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:30,153 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:30,153 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:30,161 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 03:53:30,173 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 03:53:30,175 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:30,175 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:30,176 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:30,176 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:30,176 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:30,177 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:30,177 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:30,183 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) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:30,203 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 03:53:30,206 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:30,206 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:30,206 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:30,206 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:30,207 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:30,208 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:30,209 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:30,210 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 5 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:30,220 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 03:53:30,222 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:30,222 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:30,223 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:30,223 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:30,227 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:30,228 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:53:30,234 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) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:30,249 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 03:53:30,252 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:30,252 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:30,253 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:30,253 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:30,264 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:30,264 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:53:30,281 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:53:30,375 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2019-11-28 03:53:30,376 INFO L444 ModelExtractionUtils]: 17 out of 31 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:30,402 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:30,421 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-28 03:53:30,421 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:53:30,422 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 03:53:30,459 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2019-11-28 03:53:30,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:30,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:53:30,509 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 03:53:30,510 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:53:30,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:53:30,525 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 03:53:30,526 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:53:30,543 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 03:53:30,564 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 03:53:30,566 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states. Second operand 3 states. [2019-11-28 03:53:30,637 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states.. Second operand 3 states. Result 64 states and 92 transitions. Complement of second has 7 states. [2019-11-28 03:53:30,639 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 03:53:30,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 03:53:30,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 64 transitions. [2019-11-28 03:53:30,645 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 64 transitions. Stem has 6 letters. Loop has 2 letters. [2019-11-28 03:53:30,649 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:53:30,650 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 64 transitions. Stem has 8 letters. Loop has 2 letters. [2019-11-28 03:53:30,650 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:53:30,650 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 64 transitions. Stem has 6 letters. Loop has 4 letters. [2019-11-28 03:53:30,651 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:53:30,652 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 92 transitions. [2019-11-28 03:53:30,665 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-11-28 03:53:30,671 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 20 states and 27 transitions. [2019-11-28 03:53:30,673 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2019-11-28 03:53:30,673 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2019-11-28 03:53:30,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 27 transitions. [2019-11-28 03:53:30,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:53:30,675 INFO L688 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2019-11-28 03:53:30,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 27 transitions. [2019-11-28 03:53:30,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-11-28 03:53:30,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-28 03:53:30,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2019-11-28 03:53:30,709 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2019-11-28 03:53:30,709 INFO L591 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2019-11-28 03:53:30,709 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 03:53:30,709 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 27 transitions. [2019-11-28 03:53:30,712 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-11-28 03:53:30,713 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:53:30,714 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:53:30,714 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:53:30,715 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 03:53:30,715 INFO L794 eck$LassoCheckResult]: Stem: 181#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 179#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet14, main_#t~post13, main_~i~0, main_#t~nondet16, main_#t~post15, main_~i~1, main_#t~ret17.base, main_#t~ret17.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length2~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~n~0 := main_#t~nondet10;havoc main_#t~nondet10; 172#L534 assume !(main_~length1~0 < 1); 173#L534-2 assume !(main_~length2~0 < 1); 168#L537-1 assume !(main_~n~0 < 1); 169#L540-1 assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;main_~i~0 := 0; 174#L547-3 assume !(main_~i~0 < main_~length1~0 - 1); 175#L547-4 main_~i~1 := 0; 178#L552-3 [2019-11-28 03:53:30,715 INFO L796 eck$LassoCheckResult]: Loop: 178#L552-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet16, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet16; 183#L552-2 main_#t~post15 := main_~i~1;main_~i~1 := 1 + main_#t~post15;havoc main_#t~post15; 178#L552-3 [2019-11-28 03:53:30,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:30,716 INFO L82 PathProgramCache]: Analyzing trace with hash 180553783, now seen corresponding path program 1 times [2019-11-28 03:53:30,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:30,716 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063550532] [2019-11-28 03:53:30,716 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:30,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:53:30,857 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 03:53:30,858 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063550532] [2019-11-28 03:53:30,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:53:30,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 03:53:30,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354183460] [2019-11-28 03:53:30,864 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-28 03:53:30,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:30,865 INFO L82 PathProgramCache]: Analyzing trace with hash 2467, now seen corresponding path program 1 times [2019-11-28 03:53:30,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:30,866 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235665425] [2019-11-28 03:53:30,866 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:30,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:30,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:30,897 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:30,932 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:53:30,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 03:53:30,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 03:53:30,938 INFO L87 Difference]: Start difference. First operand 20 states and 27 transitions. cyclomatic complexity: 11 Second operand 5 states. [2019-11-28 03:53:31,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:53:31,013 INFO L93 Difference]: Finished difference Result 21 states and 27 transitions. [2019-11-28 03:53:31,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 03:53:31,014 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 27 transitions. [2019-11-28 03:53:31,015 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-11-28 03:53:31,018 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 21 states and 27 transitions. [2019-11-28 03:53:31,018 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2019-11-28 03:53:31,018 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2019-11-28 03:53:31,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 27 transitions. [2019-11-28 03:53:31,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:53:31,020 INFO L688 BuchiCegarLoop]: Abstraction has 21 states and 27 transitions. [2019-11-28 03:53:31,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 27 transitions. [2019-11-28 03:53:31,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2019-11-28 03:53:31,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-28 03:53:31,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2019-11-28 03:53:31,024 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2019-11-28 03:53:31,027 INFO L591 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2019-11-28 03:53:31,027 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 03:53:31,028 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 26 transitions. [2019-11-28 03:53:31,029 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-11-28 03:53:31,031 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:53:31,031 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:53:31,032 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:53:31,033 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 03:53:31,033 INFO L794 eck$LassoCheckResult]: Stem: 234#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 232#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet14, main_#t~post13, main_~i~0, main_#t~nondet16, main_#t~post15, main_~i~1, main_#t~ret17.base, main_#t~ret17.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length2~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~n~0 := main_#t~nondet10;havoc main_#t~nondet10; 225#L534 assume !(main_~length1~0 < 1); 226#L534-2 assume !(main_~length2~0 < 1); 221#L537-1 assume !(main_~n~0 < 1); 222#L540-1 assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;main_~i~0 := 0; 227#L547-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet14, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet14; 223#L547-2 main_#t~post13 := main_~i~0;main_~i~0 := 1 + main_#t~post13;havoc main_#t~post13; 224#L547-3 assume !(main_~i~0 < main_~length1~0 - 1); 228#L547-4 main_~i~1 := 0; 231#L552-3 [2019-11-28 03:53:31,033 INFO L796 eck$LassoCheckResult]: Loop: 231#L552-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet16, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet16; 236#L552-2 main_#t~post15 := main_~i~1;main_~i~1 := 1 + main_#t~post15;havoc main_#t~post15; 231#L552-3 [2019-11-28 03:53:31,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:31,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1713550361, now seen corresponding path program 1 times [2019-11-28 03:53:31,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:31,034 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776658768] [2019-11-28 03:53:31,035 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:31,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:31,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:31,096 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:31,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:31,097 INFO L82 PathProgramCache]: Analyzing trace with hash 2467, now seen corresponding path program 2 times [2019-11-28 03:53:31,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:31,098 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066044075] [2019-11-28 03:53:31,098 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:31,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:31,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:31,120 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:31,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:31,124 INFO L82 PathProgramCache]: Analyzing trace with hash 1749424059, now seen corresponding path program 1 times [2019-11-28 03:53:31,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:31,126 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313723885] [2019-11-28 03:53:31,126 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:31,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:53:31,243 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:53:31,243 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313723885] [2019-11-28 03:53:31,244 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518589608] [2019-11-28 03:53:31,244 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 03:53:31,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:53:31,304 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-28 03:53:31,306 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:53:31,381 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:53:31,382 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 03:53:31,382 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 10 [2019-11-28 03:53:31,382 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579100838] [2019-11-28 03:53:31,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:53:31,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-28 03:53:31,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-28 03:53:31,417 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. cyclomatic complexity: 10 Second operand 10 states. [2019-11-28 03:53:31,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:53:31,758 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2019-11-28 03:53:31,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-28 03:53:31,759 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 63 transitions. [2019-11-28 03:53:31,760 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 20 [2019-11-28 03:53:31,761 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 51 states and 63 transitions. [2019-11-28 03:53:31,762 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2019-11-28 03:53:31,762 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41 [2019-11-28 03:53:31,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 63 transitions. [2019-11-28 03:53:31,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:53:31,763 INFO L688 BuchiCegarLoop]: Abstraction has 51 states and 63 transitions. [2019-11-28 03:53:31,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 63 transitions. [2019-11-28 03:53:31,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 29. [2019-11-28 03:53:31,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-28 03:53:31,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2019-11-28 03:53:31,766 INFO L711 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2019-11-28 03:53:31,767 INFO L591 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2019-11-28 03:53:31,767 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 03:53:31,767 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 38 transitions. [2019-11-28 03:53:31,767 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-11-28 03:53:31,768 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:53:31,768 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:53:31,768 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:53:31,768 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 03:53:31,769 INFO L794 eck$LassoCheckResult]: Stem: 372#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 369#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet14, main_#t~post13, main_~i~0, main_#t~nondet16, main_#t~post15, main_~i~1, main_#t~ret17.base, main_#t~ret17.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length2~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~n~0 := main_#t~nondet10;havoc main_#t~nondet10; 362#L534 assume !(main_~length1~0 < 1); 363#L534-2 assume !(main_~length2~0 < 1); 370#L537-1 assume !(main_~n~0 < 1); 376#L540-1 assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;main_~i~0 := 0; 377#L547-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet14, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet14; 382#L547-2 main_#t~post13 := main_~i~0;main_~i~0 := 1 + main_#t~post13;havoc main_#t~post13; 381#L547-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet14, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet14; 380#L547-2 main_#t~post13 := main_~i~0;main_~i~0 := 1 + main_#t~post13;havoc main_#t~post13; 379#L547-3 assume !(main_~i~0 < main_~length1~0 - 1); 378#L547-4 main_~i~1 := 0; 375#L552-3 [2019-11-28 03:53:31,769 INFO L796 eck$LassoCheckResult]: Loop: 375#L552-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet16, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet16; 374#L552-2 main_#t~post15 := main_~i~1;main_~i~1 := 1 + main_#t~post15;havoc main_#t~post15; 375#L552-3 [2019-11-28 03:53:31,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:31,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1749479291, now seen corresponding path program 2 times [2019-11-28 03:53:31,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:31,770 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240769524] [2019-11-28 03:53:31,770 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:31,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:31,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:31,811 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:31,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:31,812 INFO L82 PathProgramCache]: Analyzing trace with hash 2467, now seen corresponding path program 3 times [2019-11-28 03:53:31,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:31,813 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416263552] [2019-11-28 03:53:31,813 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:31,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:31,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:31,822 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:31,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:31,822 INFO L82 PathProgramCache]: Analyzing trace with hash 1917387421, now seen corresponding path program 2 times [2019-11-28 03:53:31,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:31,823 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181534835] [2019-11-28 03:53:31,823 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:31,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:31,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:31,853 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:32,215 WARN L192 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2019-11-28 03:53:32,313 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:53:32,314 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:53:32,314 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:53:32,314 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:53:32,314 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:53:32,314 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:32,314 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:53:32,314 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:53:32,315 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrncat-alloca-2.i_Iteration4_Lasso [2019-11-28 03:53:32,315 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:53:32,315 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:53:32,319 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 03:53:32,321 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 03:53:32,323 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 03:53:32,475 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2019-11-28 03:53:32,497 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 03:53:32,499 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 03:53:32,502 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 03:53:32,505 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 03:53:32,507 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 03:53:32,509 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 03:53:32,511 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 03:53:32,513 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 03:53:32,517 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 03:53:32,522 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 03:53:32,525 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 03:53:32,528 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 03:53:32,882 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:53:32,883 INFO L489 LassoAnalysis]: Using template 'affine'. 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 03:53:32,902 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 03:53:32,903 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:32,904 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:32,904 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:32,904 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:32,904 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:32,905 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:32,905 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:32,906 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) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:32,917 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 03:53:32,919 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:32,919 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:32,919 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:32,919 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:32,919 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:32,920 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:32,920 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:32,921 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 03:53:32,929 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 03:53:32,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:32,930 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:32,931 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:32,931 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:32,931 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:32,934 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:32,934 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:32,937 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 03:53:32,951 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 03:53:32,953 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:32,954 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:32,954 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:32,954 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:32,958 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:32,959 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:32,966 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 03:53:32,977 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 03:53:32,979 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:32,980 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:32,980 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:32,980 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:32,983 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:32,983 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 03:53:32,987 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) [2019-11-28 03:53:33,003 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 03:53:33,005 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:33,006 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:33,006 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:33,006 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:33,012 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:33,012 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:33,023 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) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:33,036 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 03:53:33,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:33,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:33,039 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:33,039 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:33,046 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:33,046 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:53:33,053 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 03:53:33,070 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 03:53:33,072 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:33,072 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:33,072 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:33,073 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:33,076 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:33,076 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:33,082 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) [2019-11-28 03:53:33,098 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:33,102 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:33,102 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:33,102 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:33,102 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:33,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:33,103 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:33,104 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:33,105 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:33,123 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 03:53:33,126 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:33,127 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:33,127 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:33,127 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:33,142 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:33,143 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:33,160 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:53:33,209 INFO L443 ModelExtractionUtils]: Simplification made 19 calls to the SMT solver. [2019-11-28 03:53:33,209 INFO L444 ModelExtractionUtils]: 18 out of 34 variables were initially zero. Simplification set additionally 13 variables to zero. 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 03:53:33,220 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:33,224 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-28 03:53:33,225 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:53:33,225 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1, ULTIMATE.start_main_~length2~0) = -1*ULTIMATE.start_main_~i~1 + 1*ULTIMATE.start_main_~length2~0 Supporting invariants [] [2019-11-28 03:53:33,247 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2019-11-28 03:53:33,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:33,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:53:33,281 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 03:53:33,282 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:53:33,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:53:33,290 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 03:53:33,290 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:53:33,301 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 03:53:33,301 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 03:53:33,301 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 38 transitions. cyclomatic complexity: 14 Second operand 3 states. [2019-11-28 03:53:33,324 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 38 transitions. cyclomatic complexity: 14. Second operand 3 states. Result 39 states and 54 transitions. Complement of second has 6 states. [2019-11-28 03:53:33,325 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 03:53:33,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 03:53:33,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2019-11-28 03:53:33,326 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 12 letters. Loop has 2 letters. [2019-11-28 03:53:33,326 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:53:33,326 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 14 letters. Loop has 2 letters. [2019-11-28 03:53:33,327 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:53:33,327 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 12 letters. Loop has 4 letters. [2019-11-28 03:53:33,327 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:53:33,327 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 54 transitions. [2019-11-28 03:53:33,329 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-28 03:53:33,329 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 30 states and 40 transitions. [2019-11-28 03:53:33,330 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2019-11-28 03:53:33,330 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2019-11-28 03:53:33,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 40 transitions. [2019-11-28 03:53:33,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:53:33,330 INFO L688 BuchiCegarLoop]: Abstraction has 30 states and 40 transitions. [2019-11-28 03:53:33,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 40 transitions. [2019-11-28 03:53:33,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-28 03:53:33,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-28 03:53:33,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2019-11-28 03:53:33,338 INFO L711 BuchiCegarLoop]: Abstraction has 30 states and 40 transitions. [2019-11-28 03:53:33,338 INFO L591 BuchiCegarLoop]: Abstraction has 30 states and 40 transitions. [2019-11-28 03:53:33,338 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-28 03:53:33,338 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 40 transitions. [2019-11-28 03:53:33,339 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-28 03:53:33,339 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:53:33,339 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:53:33,340 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:53:33,340 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 03:53:33,341 INFO L794 eck$LassoCheckResult]: Stem: 529#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 526#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet14, main_#t~post13, main_~i~0, main_#t~nondet16, main_#t~post15, main_~i~1, main_#t~ret17.base, main_#t~ret17.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length2~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~n~0 := main_#t~nondet10;havoc main_#t~nondet10; 519#L534 assume !(main_~length1~0 < 1); 520#L534-2 assume main_~length2~0 < 1;main_~length2~0 := 1; 515#L537-1 assume !(main_~n~0 < 1); 516#L540-1 assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;main_~i~0 := 0; 521#L547-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet14, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet14; 517#L547-2 main_#t~post13 := main_~i~0;main_~i~0 := 1 + main_#t~post13;havoc main_#t~post13; 518#L547-3 assume !(main_~i~0 < main_~length1~0 - 1); 522#L547-4 main_~i~1 := 0; 525#L552-3 assume !(main_~i~1 < main_~length2~0 - 1); 511#L552-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - main_~n~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncat_#in~dst.base, cstrncat_#in~dst.offset, cstrncat_#in~src.base, cstrncat_#in~src.offset, cstrncat_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~n~0;havoc cstrncat_#res.base, cstrncat_#res.offset;havoc cstrncat_#t~post3.base, cstrncat_#t~post3.offset, cstrncat_#t~mem2, cstrncat_#t~post5.base, cstrncat_#t~post5.offset, cstrncat_#t~mem6, cstrncat_#t~post7.base, cstrncat_#t~post7.offset, cstrncat_#t~pre4, cstrncat_~d~0.base, cstrncat_~d~0.offset, cstrncat_~s~0.base, cstrncat_~s~0.offset, cstrncat_~dst.base, cstrncat_~dst.offset, cstrncat_~src.base, cstrncat_~src.offset, cstrncat_~n;cstrncat_~dst.base, cstrncat_~dst.offset := cstrncat_#in~dst.base, cstrncat_#in~dst.offset;cstrncat_~src.base, cstrncat_~src.offset := cstrncat_#in~src.base, cstrncat_#in~src.offset;cstrncat_~n := cstrncat_#in~n; 512#L516 assume 0 != cstrncat_~n % 4294967296;cstrncat_~d~0.base, cstrncat_~d~0.offset := cstrncat_~dst.base, cstrncat_~dst.offset;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_~src.base, cstrncat_~src.offset; 513#L519-3 [2019-11-28 03:53:33,341 INFO L796 eck$LassoCheckResult]: Loop: 513#L519-3 call cstrncat_#t~mem2 := read~int(cstrncat_~d~0.base, cstrncat_~d~0.offset, 1); 514#L519-1 assume !!(0 != cstrncat_#t~mem2);havoc cstrncat_#t~mem2;cstrncat_#t~post3.base, cstrncat_#t~post3.offset := cstrncat_~d~0.base, cstrncat_~d~0.offset;cstrncat_~d~0.base, cstrncat_~d~0.offset := cstrncat_#t~post3.base, 1 + cstrncat_#t~post3.offset;havoc cstrncat_#t~post3.base, cstrncat_#t~post3.offset; 513#L519-3 [2019-11-28 03:53:33,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:33,341 INFO L82 PathProgramCache]: Analyzing trace with hash -1209403751, now seen corresponding path program 1 times [2019-11-28 03:53:33,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:33,346 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036773348] [2019-11-28 03:53:33,346 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:33,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:33,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:33,413 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:33,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:33,414 INFO L82 PathProgramCache]: Analyzing trace with hash 2918, now seen corresponding path program 1 times [2019-11-28 03:53:33,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:33,414 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799319140] [2019-11-28 03:53:33,414 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:33,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:33,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:33,430 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:33,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:33,433 INFO L82 PathProgramCache]: Analyzing trace with hash 1699134462, now seen corresponding path program 1 times [2019-11-28 03:53:33,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:33,434 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386327585] [2019-11-28 03:53:33,434 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:33,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:53:33,677 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:53:33,677 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386327585] [2019-11-28 03:53:33,678 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839550788] [2019-11-28 03:53:33,678 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 03:53:33,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:53:33,757 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 34 conjunts are in the unsatisfiable core [2019-11-28 03:53:33,758 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:53:33,925 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-28 03:53:33,942 INFO L343 Elim1Store]: treesize reduction 23, result has 36.1 percent of original size [2019-11-28 03:53:33,942 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 21 [2019-11-28 03:53:33,943 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 03:53:33,955 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 03:53:33,957 INFO L508 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-11-28 03:53:33,957 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:54, output treesize:35 [2019-11-28 03:53:34,057 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-28 03:53:34,059 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 03:53:34,060 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 10 [2019-11-28 03:53:34,060 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 03:53:34,069 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 03:53:34,070 INFO L508 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-28 03:53:34,070 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:31, output treesize:3 [2019-11-28 03:53:34,072 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:53:34,073 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-28 03:53:34,073 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2019-11-28 03:53:34,073 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972521646] [2019-11-28 03:53:34,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:53:34,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-28 03:53:34,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2019-11-28 03:53:34,108 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. cyclomatic complexity: 15 Second operand 16 states. [2019-11-28 03:53:35,015 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 43 [2019-11-28 03:53:35,200 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2019-11-28 03:53:35,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:53:35,431 INFO L93 Difference]: Finished difference Result 64 states and 76 transitions. [2019-11-28 03:53:35,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-28 03:53:35,432 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 76 transitions. [2019-11-28 03:53:35,433 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 20 [2019-11-28 03:53:35,434 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 64 states and 76 transitions. [2019-11-28 03:53:35,434 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2019-11-28 03:53:35,435 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52 [2019-11-28 03:53:35,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 64 states and 76 transitions. [2019-11-28 03:53:35,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:53:35,440 INFO L688 BuchiCegarLoop]: Abstraction has 64 states and 76 transitions. [2019-11-28 03:53:35,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states and 76 transitions. [2019-11-28 03:53:35,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 38. [2019-11-28 03:53:35,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-11-28 03:53:35,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 49 transitions. [2019-11-28 03:53:35,446 INFO L711 BuchiCegarLoop]: Abstraction has 38 states and 49 transitions. [2019-11-28 03:53:35,446 INFO L591 BuchiCegarLoop]: Abstraction has 38 states and 49 transitions. [2019-11-28 03:53:35,447 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-28 03:53:35,447 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 49 transitions. [2019-11-28 03:53:35,448 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-28 03:53:35,449 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:53:35,449 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:53:35,450 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:53:35,450 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 03:53:35,450 INFO L794 eck$LassoCheckResult]: Stem: 715#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 712#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet14, main_#t~post13, main_~i~0, main_#t~nondet16, main_#t~post15, main_~i~1, main_#t~ret17.base, main_#t~ret17.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length2~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~n~0 := main_#t~nondet10;havoc main_#t~nondet10; 703#L534 assume !(main_~length1~0 < 1); 704#L534-2 assume main_~length2~0 < 1;main_~length2~0 := 1; 699#L537-1 assume !(main_~n~0 < 1); 700#L540-1 assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;main_~i~0 := 0; 705#L547-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet14, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet14; 706#L547-2 main_#t~post13 := main_~i~0;main_~i~0 := 1 + main_#t~post13;havoc main_#t~post13; 707#L547-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet14, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet14; 701#L547-2 main_#t~post13 := main_~i~0;main_~i~0 := 1 + main_#t~post13;havoc main_#t~post13; 702#L547-3 assume !(main_~i~0 < main_~length1~0 - 1); 731#L547-4 main_~i~1 := 0; 721#L552-3 assume !(main_~i~1 < main_~length2~0 - 1); 694#L552-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - main_~n~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncat_#in~dst.base, cstrncat_#in~dst.offset, cstrncat_#in~src.base, cstrncat_#in~src.offset, cstrncat_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~n~0;havoc cstrncat_#res.base, cstrncat_#res.offset;havoc cstrncat_#t~post3.base, cstrncat_#t~post3.offset, cstrncat_#t~mem2, cstrncat_#t~post5.base, cstrncat_#t~post5.offset, cstrncat_#t~mem6, cstrncat_#t~post7.base, cstrncat_#t~post7.offset, cstrncat_#t~pre4, cstrncat_~d~0.base, cstrncat_~d~0.offset, cstrncat_~s~0.base, cstrncat_~s~0.offset, cstrncat_~dst.base, cstrncat_~dst.offset, cstrncat_~src.base, cstrncat_~src.offset, cstrncat_~n;cstrncat_~dst.base, cstrncat_~dst.offset := cstrncat_#in~dst.base, cstrncat_#in~dst.offset;cstrncat_~src.base, cstrncat_~src.offset := cstrncat_#in~src.base, cstrncat_#in~src.offset;cstrncat_~n := cstrncat_#in~n; 695#L516 assume 0 != cstrncat_~n % 4294967296;cstrncat_~d~0.base, cstrncat_~d~0.offset := cstrncat_~dst.base, cstrncat_~dst.offset;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_~src.base, cstrncat_~src.offset; 696#L519-3 [2019-11-28 03:53:35,450 INFO L796 eck$LassoCheckResult]: Loop: 696#L519-3 call cstrncat_#t~mem2 := read~int(cstrncat_~d~0.base, cstrncat_~d~0.offset, 1); 728#L519-1 assume !!(0 != cstrncat_#t~mem2);havoc cstrncat_#t~mem2;cstrncat_#t~post3.base, cstrncat_#t~post3.offset := cstrncat_~d~0.base, cstrncat_~d~0.offset;cstrncat_~d~0.base, cstrncat_~d~0.offset := cstrncat_#t~post3.base, 1 + cstrncat_#t~post3.offset;havoc cstrncat_#t~post3.base, cstrncat_#t~post3.offset; 696#L519-3 [2019-11-28 03:53:35,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:35,451 INFO L82 PathProgramCache]: Analyzing trace with hash -948699273, now seen corresponding path program 2 times [2019-11-28 03:53:35,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:35,451 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526457147] [2019-11-28 03:53:35,451 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:35,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:35,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:35,521 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:35,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:35,521 INFO L82 PathProgramCache]: Analyzing trace with hash 2918, now seen corresponding path program 2 times [2019-11-28 03:53:35,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:35,522 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231872478] [2019-11-28 03:53:35,522 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:35,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:35,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:35,533 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:35,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:35,533 INFO L82 PathProgramCache]: Analyzing trace with hash -1166932644, now seen corresponding path program 2 times [2019-11-28 03:53:35,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:35,533 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477236403] [2019-11-28 03:53:35,534 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:35,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:35,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:35,603 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:36,404 WARN L192 SmtUtils]: Spent 767.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 137 [2019-11-28 03:53:36,637 WARN L192 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2019-11-28 03:53:36,639 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:53:36,639 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:53:36,639 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:53:36,639 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:53:36,639 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:53:36,640 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:36,640 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:53:36,640 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:53:36,640 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrncat-alloca-2.i_Iteration6_Lasso [2019-11-28 03:53:36,640 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:53:36,640 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:53:36,645 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 03:53:36,668 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 03:53:36,677 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 03:53:36,679 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 03:53:36,682 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 03:53:36,684 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 03:53:36,686 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 03:53:36,688 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 03:53:36,689 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 03:53:36,691 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 03:53:36,694 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 03:53:36,696 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 03:53:36,698 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 03:53:36,701 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 03:53:36,703 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 03:53:36,705 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 03:53:36,708 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 03:53:36,710 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 03:53:36,712 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 03:53:37,125 WARN L192 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 90 [2019-11-28 03:53:37,215 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 03:53:37,220 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 03:53:37,222 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 03:53:37,223 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 03:53:37,225 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 03:53:37,227 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 03:53:37,231 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 03:53:37,233 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 03:53:37,235 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 03:53:37,237 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 03:53:37,681 WARN L192 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2019-11-28 03:53:38,075 WARN L192 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2019-11-28 03:53:38,258 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:53:38,259 INFO L489 LassoAnalysis]: Using template 'affine'. 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) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:38,266 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 03:53:38,267 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:38,268 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:38,268 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:38,268 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:38,271 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:38,271 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:53:38,283 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) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:38,289 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 03:53:38,290 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:38,290 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:38,290 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:38,290 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:38,292 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:38,293 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:53:38,298 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 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:38,308 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 03:53:38,309 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:38,309 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:38,310 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:38,310 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:38,310 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:38,310 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:38,311 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:38,312 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 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 03:53:38,320 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 03:53:38,322 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:38,322 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:38,322 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:38,322 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:38,324 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:38,324 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:53:38,328 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) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:38,333 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 03:53:38,334 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:38,335 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:38,335 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:38,335 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:38,335 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:38,335 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:38,336 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:38,337 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) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:38,362 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 03:53:38,364 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:38,364 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:38,364 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:38,364 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:38,364 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:38,365 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:38,365 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:38,366 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Exception during sending of exit command (exit): Broken pipe 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 03:53:38,385 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 03:53:38,386 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:38,387 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:38,387 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:38,387 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:38,387 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:38,388 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:38,388 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:38,389 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) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:38,399 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 03:53:38,400 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:38,401 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:38,401 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:38,401 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:38,401 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:38,402 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:38,402 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:38,403 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) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:38,409 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 03:53:38,411 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:38,411 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:38,411 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:38,411 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:38,411 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:38,411 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:38,412 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:38,413 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) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:38,425 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 03:53:38,426 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:38,426 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:38,426 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:38,426 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:38,428 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:38,428 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:53:38,431 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 03:53:38,442 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 03:53:38,443 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:38,444 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:38,444 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:38,444 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:38,444 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:38,445 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:38,445 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 03:53:38,446 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) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:38,453 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 03:53:38,454 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:38,454 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:38,454 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:38,455 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:38,455 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:38,455 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:38,455 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:38,457 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) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:38,465 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 03:53:38,466 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:38,467 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:38,467 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:38,467 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:38,467 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:38,467 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:38,467 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:38,468 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) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:38,480 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 03:53:38,482 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:38,482 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:38,482 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:38,482 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:38,484 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:38,484 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:53:38,489 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) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:38,495 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 03:53:38,496 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:38,496 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:38,496 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:38,496 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:38,497 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:38,497 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:38,497 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:38,498 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) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:38,504 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 03:53:38,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:38,505 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:38,505 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:38,505 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:38,505 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:38,506 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:38,506 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:38,507 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 03:53:38,513 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 03:53:38,515 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:38,515 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:38,515 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:38,515 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:38,515 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:38,515 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:38,515 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:38,517 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 03:53:38,523 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 03:53:38,524 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:38,524 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:38,525 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:38,525 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:38,525 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:38,526 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:38,526 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:38,527 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) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:38,533 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 03:53:38,535 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:38,536 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:38,536 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:38,536 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:38,565 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:38,566 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:53:38,594 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:53:38,661 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2019-11-28 03:53:38,661 INFO L444 ModelExtractionUtils]: 15 out of 64 variables were initially zero. Simplification set additionally 44 variables to zero. 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) [2019-11-28 03:53:38,671 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:38,674 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-28 03:53:38,675 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:53:38,675 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrncat_~d~0.offset) = -2*ULTIMATE.start_cstrncat_~d~0.offset + 5 Supporting invariants [-1*v_rep(select #length ULTIMATE.start_cstrncat_~d~0.base)_1 + 3 >= 0] [2019-11-28 03:53:38,724 INFO L297 tatePredicateManager]: 13 out of 14 supporting invariants were superfluous and have been removed [2019-11-28 03:53:38,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:38,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:53:38,781 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-28 03:53:38,783 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:53:38,787 INFO L404 ElimStorePlain]: Different costs {0=[|v_#length_90|], 1=[|v_#valid_114|]} [2019-11-28 03:53:38,792 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-28 03:53:38,794 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2019-11-28 03:53:38,794 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 03:53:38,805 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 03:53:38,813 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-28 03:53:38,813 INFO L508 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-28 03:53:38,824 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 03:53:38,824 INFO L508 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 03:53:38,825 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:22, output treesize:10 [2019-11-28 03:53:38,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:53:38,922 WARN L253 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-28 03:53:38,922 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:53:38,942 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 03:53:38,943 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.6 stem predicates 2 loop predicates [2019-11-28 03:53:38,943 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 38 states and 49 transitions. cyclomatic complexity: 16 Second operand 8 states. [2019-11-28 03:53:39,240 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 38 states and 49 transitions. cyclomatic complexity: 16. Second operand 8 states. Result 68 states and 88 transitions. Complement of second has 15 states. [2019-11-28 03:53:39,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 8 stem states 2 non-accepting loop states 2 accepting loop states [2019-11-28 03:53:39,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-28 03:53:39,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 44 transitions. [2019-11-28 03:53:39,246 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 44 transitions. Stem has 15 letters. Loop has 2 letters. [2019-11-28 03:53:39,246 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:53:39,247 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 44 transitions. Stem has 17 letters. Loop has 2 letters. [2019-11-28 03:53:39,247 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:53:39,247 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 44 transitions. Stem has 15 letters. Loop has 4 letters. [2019-11-28 03:53:39,247 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:53:39,247 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 68 states and 88 transitions. [2019-11-28 03:53:39,249 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-28 03:53:39,250 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 68 states to 40 states and 50 transitions. [2019-11-28 03:53:39,250 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2019-11-28 03:53:39,250 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2019-11-28 03:53:39,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 50 transitions. [2019-11-28 03:53:39,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:53:39,251 INFO L688 BuchiCegarLoop]: Abstraction has 40 states and 50 transitions. [2019-11-28 03:53:39,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 50 transitions. [2019-11-28 03:53:39,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 36. [2019-11-28 03:53:39,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-28 03:53:39,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 45 transitions. [2019-11-28 03:53:39,254 INFO L711 BuchiCegarLoop]: Abstraction has 36 states and 45 transitions. [2019-11-28 03:53:39,254 INFO L591 BuchiCegarLoop]: Abstraction has 36 states and 45 transitions. [2019-11-28 03:53:39,254 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-11-28 03:53:39,254 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 45 transitions. [2019-11-28 03:53:39,255 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-28 03:53:39,255 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:53:39,255 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:53:39,255 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:53:39,256 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 03:53:39,256 INFO L794 eck$LassoCheckResult]: Stem: 984#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 981#L-1 havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~nondet14, main_#t~post13, main_~i~0, main_#t~nondet16, main_#t~post15, main_~i~1, main_#t~ret17.base, main_#t~ret17.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length2~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~n~0 := main_#t~nondet10;havoc main_#t~nondet10; 972#L534 assume !(main_~length1~0 < 1); 973#L534-2 assume main_~length2~0 < 1;main_~length2~0 := 1; 982#L537-1 assume !(main_~n~0 < 1); 999#L540-1 assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;main_~i~0 := 0; 998#L547-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet14, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet14; 997#L547-2 main_#t~post13 := main_~i~0;main_~i~0 := 1 + main_#t~post13;havoc main_#t~post13; 996#L547-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet14, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet14; 995#L547-2 main_#t~post13 := main_~i~0;main_~i~0 := 1 + main_#t~post13;havoc main_#t~post13; 994#L547-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet14, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet14; 993#L547-2 main_#t~post13 := main_~i~0;main_~i~0 := 1 + main_#t~post13;havoc main_#t~post13; 992#L547-3 assume !(main_~i~0 < main_~length1~0 - 1); 979#L547-4 main_~i~1 := 0; 980#L552-3 assume !(main_~i~1 < main_~length2~0 - 1); 964#L552-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - main_~n~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncat_#in~dst.base, cstrncat_#in~dst.offset, cstrncat_#in~src.base, cstrncat_#in~src.offset, cstrncat_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~n~0;havoc cstrncat_#res.base, cstrncat_#res.offset;havoc cstrncat_#t~post3.base, cstrncat_#t~post3.offset, cstrncat_#t~mem2, cstrncat_#t~post5.base, cstrncat_#t~post5.offset, cstrncat_#t~mem6, cstrncat_#t~post7.base, cstrncat_#t~post7.offset, cstrncat_#t~pre4, cstrncat_~d~0.base, cstrncat_~d~0.offset, cstrncat_~s~0.base, cstrncat_~s~0.offset, cstrncat_~dst.base, cstrncat_~dst.offset, cstrncat_~src.base, cstrncat_~src.offset, cstrncat_~n;cstrncat_~dst.base, cstrncat_~dst.offset := cstrncat_#in~dst.base, cstrncat_#in~dst.offset;cstrncat_~src.base, cstrncat_~src.offset := cstrncat_#in~src.base, cstrncat_#in~src.offset;cstrncat_~n := cstrncat_#in~n; 965#L516 assume 0 != cstrncat_~n % 4294967296;cstrncat_~d~0.base, cstrncat_~d~0.offset := cstrncat_~dst.base, cstrncat_~dst.offset;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_~src.base, cstrncat_~src.offset; 966#L519-3 [2019-11-28 03:53:39,256 INFO L796 eck$LassoCheckResult]: Loop: 966#L519-3 call cstrncat_#t~mem2 := read~int(cstrncat_~d~0.base, cstrncat_~d~0.offset, 1); 967#L519-1 assume !!(0 != cstrncat_#t~mem2);havoc cstrncat_#t~mem2;cstrncat_#t~post3.base, cstrncat_#t~post3.offset := cstrncat_~d~0.base, cstrncat_~d~0.offset;cstrncat_~d~0.base, cstrncat_~d~0.offset := cstrncat_#t~post3.base, 1 + cstrncat_#t~post3.offset;havoc cstrncat_#t~post3.base, cstrncat_#t~post3.offset; 966#L519-3 [2019-11-28 03:53:39,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:39,256 INFO L82 PathProgramCache]: Analyzing trace with hash 480200917, now seen corresponding path program 3 times [2019-11-28 03:53:39,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:39,257 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893555234] [2019-11-28 03:53:39,257 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:39,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:39,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:39,284 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:39,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:39,284 INFO L82 PathProgramCache]: Analyzing trace with hash 2918, now seen corresponding path program 3 times [2019-11-28 03:53:39,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:39,285 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910062048] [2019-11-28 03:53:39,285 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:39,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:39,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:39,294 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:39,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:39,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1911582522, now seen corresponding path program 3 times [2019-11-28 03:53:39,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:53:39,295 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579412649] [2019-11-28 03:53:39,295 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:53:39,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:39,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:53:39,337 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:53:40,320 WARN L192 SmtUtils]: Spent 951.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 141 [2019-11-28 03:53:40,542 WARN L192 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-11-28 03:53:40,544 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:53:40,544 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:53:40,544 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:53:40,544 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:53:40,544 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:53:40,544 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:40,545 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:53:40,545 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:53:40,545 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrncat-alloca-2.i_Iteration7_Lasso [2019-11-28 03:53:40,545 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:53:40,545 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:53:40,549 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 03:53:40,578 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 03:53:40,581 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 03:53:40,588 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 03:53:40,591 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 03:53:40,593 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 03:53:40,595 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 03:53:40,597 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 03:53:40,599 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 03:53:40,601 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 03:53:40,603 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 03:53:40,605 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 03:53:40,607 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 03:53:40,609 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 03:53:40,611 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 03:53:40,613 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 03:53:40,615 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 03:53:40,622 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 03:53:40,624 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 03:53:40,626 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 03:53:40,629 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 03:53:40,631 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 03:53:40,633 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 03:53:40,635 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 03:53:40,637 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 03:53:40,642 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 03:53:40,644 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 03:53:40,646 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 03:53:41,019 WARN L192 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83 [2019-11-28 03:53:41,095 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 03:53:41,482 WARN L192 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2019-11-28 03:53:41,848 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2019-11-28 03:53:41,971 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:53:41,971 INFO L489 LassoAnalysis]: Using template 'affine'. 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) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:41,987 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 03:53:41,989 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:41,989 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:41,989 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:41,989 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:41,990 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:41,990 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:41,990 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:41,992 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 03:53:42,004 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 03:53:42,005 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:42,005 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:42,006 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:42,006 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:42,007 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:42,007 INFO L402 nArgumentSynthesizer]: A total of 2 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 03:53:42,011 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) [2019-11-28 03:53:42,019 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 03:53:42,021 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:42,021 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:42,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:42,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:42,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:42,023 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:42,023 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:42,025 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) [2019-11-28 03:53:42,034 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 03:53:42,035 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:42,036 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:42,036 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:42,036 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:42,036 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:42,036 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:42,037 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:42,038 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) [2019-11-28 03:53:42,046 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 03:53:42,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:42,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:42,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:42,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:42,050 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:42,050 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:42,053 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 03:53:42,061 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 03:53:42,062 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:42,063 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:42,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:42,063 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:42,063 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:42,065 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:42,065 INFO L402 nArgumentSynthesizer]: A total of 0 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 03:53:42,067 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 03:53:42,074 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 03:53:42,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:42,077 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:42,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:42,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:42,078 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:42,080 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:42,080 INFO L402 nArgumentSynthesizer]: A total of 0 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 03:53:42,084 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 03:53:42,091 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 03:53:42,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:42,092 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:42,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:42,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:42,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:42,093 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:42,093 INFO L402 nArgumentSynthesizer]: A total of 0 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 03:53:42,095 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 03:53:42,102 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 03:53:42,104 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:42,104 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:42,104 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:42,104 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:42,104 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:42,105 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:42,105 INFO L402 nArgumentSynthesizer]: A total of 0 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 03:53:42,107 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 03:53:42,114 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 [2019-11-28 03:53:42,116 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:42,116 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:42,116 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:42,116 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:42,116 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:42,117 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:42,117 INFO L402 nArgumentSynthesizer]: A total of 0 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 03:53:42,119 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 03:53:42,125 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 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:42,128 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:42,128 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:42,128 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:42,128 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:42,129 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:42,129 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:42,129 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:42,131 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 03:53:42,138 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 03:53:42,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:42,139 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:42,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:42,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:42,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:42,140 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:42,140 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:42,141 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 53 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 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:42,149 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 03:53:42,151 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:42,151 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:42,151 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:42,151 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:42,151 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:42,152 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:42,152 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:42,154 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 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:42,164 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 03:53:42,166 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:42,166 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:42,166 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:42,166 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:42,168 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:42,168 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:42,172 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 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:42,178 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 03:53:42,180 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:42,180 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:42,180 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:42,181 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:42,181 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:42,181 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:42,181 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:42,183 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 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:42,190 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 03:53:42,192 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:42,192 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:42,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:42,193 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:42,193 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:42,193 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:42,193 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:42,195 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 57 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 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:42,200 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 03:53:42,201 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:42,201 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:42,201 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:42,201 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:42,201 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:42,201 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:42,202 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:42,203 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 58 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 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:42,210 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 03:53:42,211 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:42,211 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:42,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:42,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:42,212 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:42,213 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:42,213 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:42,214 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 59 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 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:42,224 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 03:53:42,226 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:42,226 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:42,226 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:42,226 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:42,227 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:42,227 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:53:42,230 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 60 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 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:42,236 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 03:53:42,238 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:42,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:42,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:42,238 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:42,239 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:42,239 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:53:42,242 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 61 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 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:42,247 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 03:53:42,249 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:42,249 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:42,249 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:42,249 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:42,249 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:42,250 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:42,250 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:42,256 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 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:42,267 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 03:53:42,268 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:42,269 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:42,269 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:42,269 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:42,270 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:42,270 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:42,274 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 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:42,281 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 03:53:42,282 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:42,283 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:42,283 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:42,283 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:42,283 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:42,283 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:42,283 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:42,285 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 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:42,292 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 03:53:42,293 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:42,293 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:42,294 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:42,294 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:42,294 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:42,294 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:42,294 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:42,296 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 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:42,303 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 03:53:42,305 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:42,305 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:42,305 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:42,305 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:42,305 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:42,306 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:42,306 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:42,307 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 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:42,317 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 03:53:42,318 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:42,318 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:42,318 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:42,319 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:42,319 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:42,319 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:42,319 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:42,321 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 67 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 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:42,328 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 03:53:42,329 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:42,329 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:53:42,329 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:42,330 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:42,330 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:42,330 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:53:42,330 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:53:42,331 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 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:53:42,337 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 03:53:42,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:42,339 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:42,339 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:42,339 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:42,342 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:42,342 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:42,350 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 69 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 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:42,355 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 03:53:42,358 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:53:42,358 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:53:42,359 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:53:42,359 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:53:42,376 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:53:42,376 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:53:42,396 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:53:42,427 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2019-11-28 03:53:42,427 INFO L444 ModelExtractionUtils]: 15 out of 61 variables were initially zero. Simplification set additionally 43 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 70 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 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:53:42,432 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 03:53:42,434 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-28 03:53:42,434 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:53:42,434 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_cstrncat_~d~0.base)_2, ULTIMATE.start_cstrncat_~d~0.offset) = 1*v_rep(select #length ULTIMATE.start_cstrncat_~d~0.base)_2 - 1*ULTIMATE.start_cstrncat_~d~0.offset Supporting invariants [] [2019-11-28 03:53:42,466 INFO L297 tatePredicateManager]: 9 out of 9 supporting invariants were superfluous and have been removed [2019-11-28 03:53:42,468 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-28 03:53:42,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:53:42,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:53:42,517 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 03:53:42,518 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:53:42,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:53:42,529 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 03:53:42,530 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:53:42,540 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 03:53:42,541 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 03:53:42,541 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 45 transitions. cyclomatic complexity: 14 Second operand 3 states. [2019-11-28 03:53:42,568 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 45 transitions. cyclomatic complexity: 14. Second operand 3 states. Result 43 states and 54 transitions. Complement of second has 6 states. [2019-11-28 03:53:42,569 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 03:53:42,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 03:53:42,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2019-11-28 03:53:42,569 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 17 letters. Loop has 2 letters. [2019-11-28 03:53:42,569 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:53:42,570 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 19 letters. Loop has 2 letters. [2019-11-28 03:53:42,570 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:53:42,570 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 17 letters. Loop has 4 letters. [2019-11-28 03:53:42,570 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:53:42,570 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 54 transitions. [2019-11-28 03:53:42,571 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 03:53:42,571 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 0 states and 0 transitions. [2019-11-28 03:53:42,571 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-28 03:53:42,571 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-28 03:53:42,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-28 03:53:42,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:53:42,572 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:53:42,572 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:53:42,572 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:53:42,572 INFO L424 BuchiCegarLoop]: ======== Iteration 8============ [2019-11-28 03:53:42,572 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-28 03:53:42,572 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 03:53:42,572 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-28 03:53:42,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:53:42 BoogieIcfgContainer [2019-11-28 03:53:42,578 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 03:53:42,579 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 03:53:42,579 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 03:53:42,579 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 03:53:42,579 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:53:28" (3/4) ... [2019-11-28 03:53:42,584 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 03:53:42,584 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 03:53:42,585 INFO L168 Benchmark]: Toolchain (without parser) took 14937.55 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 389.0 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -157.0 MB). Peak memory consumption was 232.0 MB. Max. memory is 11.5 GB. [2019-11-28 03:53:42,586 INFO L168 Benchmark]: CDTParser took 0.29 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 03:53:42,586 INFO L168 Benchmark]: CACSL2BoogieTranslator took 602.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -160.3 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-11-28 03:53:42,587 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 03:53:42,587 INFO L168 Benchmark]: Boogie Preprocessor took 31.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:53:42,588 INFO L168 Benchmark]: RCFGBuilder took 409.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. [2019-11-28 03:53:42,588 INFO L168 Benchmark]: BuchiAutomizer took 13826.49 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 253.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -27.8 MB). Peak memory consumption was 226.0 MB. Max. memory is 11.5 GB. [2019-11-28 03:53:42,588 INFO L168 Benchmark]: Witness Printer took 5.17 ms. Allocated memory is still 1.4 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:53:42,591 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 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 602.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -160.3 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 57.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 409.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 13826.49 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 253.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -27.8 MB). Peak memory consumption was 226.0 MB. Max. memory is 11.5 GB. * Witness Printer took 5.17 ms. Allocated memory is still 1.4 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (3 trivial, 4 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 + length2 and consists of 4 locations. One deterministic module has affine ranking function -2 * d + 5 and consists of 12 locations. One deterministic module has affine ranking function unknown-#length-unknown[d] + -1 * d and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 16 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 13.7s and 8 iterations. TraceHistogramMax:3. Analysis of lassos took 10.9s. Construction of modules took 0.4s. Büchi inclusion checks took 2.1s. Highest rank in rank-based complementation 3. Minimization of det autom 7. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 53 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 38 states and ocurred in iteration 5. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 142 SDtfs, 479 SDslu, 314 SDs, 0 SdLazy, 268 SolverSat, 91 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU1 SILI0 SILT0 lasso4 LassoPreprocessingBenchmarks: Lassos: inital201 mio100 ax109 hnf98 lsp85 ukn74 mio100 lsp60 div107 bol100 ite100 ukn100 eq168 hnf88 smp96 dnf100 smp100 tf100 neg99 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 25ms VariablesStem: 2 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...