./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/rec_strlen-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/termination-memory-alloca/rec_strlen-alloca-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-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 64bit --witnessprinter.graph.data.programhash 872559d907cc6e66a8bb0b951a033bd6c217aa9a ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 03:02:21,156 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 03:02:21,159 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 03:02:21,178 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 03:02:21,178 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 03:02:21,180 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 03:02:21,182 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 03:02:21,184 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 03:02:21,191 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 03:02:21,192 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 03:02:21,193 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 03:02:21,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 03:02:21,199 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 03:02:21,202 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 03:02:21,205 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 03:02:21,206 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 03:02:21,208 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 03:02:21,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 03:02:21,216 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 03:02:21,222 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 03:02:21,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 03:02:21,227 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 03:02:21,231 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 03:02:21,232 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 03:02:21,236 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 03:02:21,236 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 03:02:21,237 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 03:02:21,238 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 03:02:21,239 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 03:02:21,240 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 03:02:21,242 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 03:02:21,243 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 03:02:21,244 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 03:02:21,245 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 03:02:21,247 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 03:02:21,247 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 03:02:21,248 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 03:02:21,249 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 03:02:21,249 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 03:02:21,251 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 03:02:21,253 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 03:02:21,254 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-28 03:02:21,281 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 03:02:21,281 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 03:02:21,284 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 03:02:21,284 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 03:02:21,285 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 03:02:21,285 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 03:02:21,286 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 03:02:21,286 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 03:02:21,286 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 03:02:21,286 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 03:02:21,288 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 03:02:21,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 03:02:21,288 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 03:02:21,289 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 03:02:21,289 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 03:02:21,289 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 03:02:21,290 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 03:02:21,290 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 03:02:21,290 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 03:02:21,290 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 03:02:21,291 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 03:02:21,291 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 03:02:21,291 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 03:02:21,292 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 03:02:21,292 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 03:02:21,292 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 03:02:21,292 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 03:02:21,293 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 03:02:21,294 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 03:02:21,295 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 872559d907cc6e66a8bb0b951a033bd6c217aa9a [2019-11-28 03:02:21,617 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 03:02:21,630 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 03:02:21,634 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 03:02:21,636 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 03:02:21,636 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 03:02:21,637 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/rec_strlen-alloca-2.i [2019-11-28 03:02:21,714 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4eebaa3a/38b1b31586084b82931d6e295af8ece8/FLAG4054558e1 [2019-11-28 03:02:22,228 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 03:02:22,229 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/rec_strlen-alloca-2.i [2019-11-28 03:02:22,244 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4eebaa3a/38b1b31586084b82931d6e295af8ece8/FLAG4054558e1 [2019-11-28 03:02:22,604 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4eebaa3a/38b1b31586084b82931d6e295af8ece8 [2019-11-28 03:02:22,607 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 03:02:22,609 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 03:02:22,610 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 03:02:22,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 03:02:22,615 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 03:02:22,616 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:02:22" (1/1) ... [2019-11-28 03:02:22,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19255d34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:22, skipping insertion in model container [2019-11-28 03:02:22,620 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:02:22" (1/1) ... [2019-11-28 03:02:22,628 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 03:02:22,664 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 03:02:23,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:02:23,086 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 03:02:23,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:02:23,178 INFO L208 MainTranslator]: Completed translation [2019-11-28 03:02:23,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:23 WrapperNode [2019-11-28 03:02:23,180 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 03:02:23,181 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 03:02:23,181 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 03:02:23,181 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 03:02:23,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:23" (1/1) ... [2019-11-28 03:02:23,216 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:23" (1/1) ... [2019-11-28 03:02:23,233 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 03:02:23,234 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 03:02:23,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 03:02:23,234 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 03:02:23,241 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:23" (1/1) ... [2019-11-28 03:02:23,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:23" (1/1) ... [2019-11-28 03:02:23,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:23" (1/1) ... [2019-11-28 03:02:23,245 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:23" (1/1) ... [2019-11-28 03:02:23,251 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:23" (1/1) ... [2019-11-28 03:02:23,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:23" (1/1) ... [2019-11-28 03:02:23,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:23" (1/1) ... [2019-11-28 03:02:23,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 03:02:23,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 03:02:23,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 03:02:23,258 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 03:02:23,259 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:23" (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 03:02:23,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 03:02:23,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 03:02:23,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 03:02:23,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 03:02:23,325 INFO L130 BoogieDeclarations]: Found specification of procedure strlen_rec [2019-11-28 03:02:23,326 INFO L138 BoogieDeclarations]: Found implementation of procedure strlen_rec [2019-11-28 03:02:23,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 03:02:23,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 03:02:23,546 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 03:02:23,546 INFO L297 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-28 03:02:23,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:02:23 BoogieIcfgContainer [2019-11-28 03:02:23,548 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 03:02:23,549 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 03:02:23,549 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 03:02:23,552 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 03:02:23,553 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:02:23,554 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:02:22" (1/3) ... [2019-11-28 03:02:23,555 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4828fabc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:02:23, skipping insertion in model container [2019-11-28 03:02:23,555 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:02:23,556 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:23" (2/3) ... [2019-11-28 03:02:23,556 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4828fabc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:02:23, skipping insertion in model container [2019-11-28 03:02:23,556 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:02:23,557 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:02:23" (3/3) ... [2019-11-28 03:02:23,559 INFO L371 chiAutomizerObserver]: Analyzing ICFG rec_strlen-alloca-2.i [2019-11-28 03:02:23,623 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 03:02:23,624 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 03:02:23,624 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 03:02:23,624 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 03:02:23,624 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 03:02:23,625 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 03:02:23,625 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 03:02:23,625 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 03:02:23,642 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-11-28 03:02:23,670 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 03:02:23,670 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:02:23,671 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:02:23,678 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-28 03:02:23,678 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 03:02:23,678 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 03:02:23,679 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-11-28 03:02:23,681 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 03:02:23,681 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:02:23,681 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:02:23,682 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-28 03:02:23,682 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 03:02:23,690 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~ret6, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet4;havoc main_#t~nondet4; 6#L555true assume !(main_~length1~0 < 1); 10#L555-2true call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1); 14#L560true call main_#t~ret6 := strlen_rec(main_~nondetString1~0.base, main_~nondetString1~0.offset);< 3#strlen_recENTRYtrue [2019-11-28 03:02:23,690 INFO L796 eck$LassoCheckResult]: Loop: 3#strlen_recENTRYtrue ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem2 := read~int(~p.base, ~p.offset, 1); 5#L548true assume !(0 == #t~mem2);havoc #t~mem2; 16#L551true call #t~ret3 := strlen_rec(~p.base, 1 + ~p.offset);< 3#strlen_recENTRYtrue [2019-11-28 03:02:23,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:02:23,696 INFO L82 PathProgramCache]: Analyzing trace with hash 28695762, now seen corresponding path program 1 times [2019-11-28 03:02:23,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:02:23,704 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382473196] [2019-11-28 03:02:23,705 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:02:23,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:02:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:02:23,853 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:02:23,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:02:23,855 INFO L82 PathProgramCache]: Analyzing trace with hash 44820, now seen corresponding path program 1 times [2019-11-28 03:02:23,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:02:23,855 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005210428] [2019-11-28 03:02:23,856 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:02:23,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:02:23,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:02:23,875 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:02:23,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:02:23,877 INFO L82 PathProgramCache]: Analyzing trace with hash 176968867, now seen corresponding path program 1 times [2019-11-28 03:02:23,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:02:23,878 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464449684] [2019-11-28 03:02:23,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:02:23,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:02:23,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:02:23,928 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:02:24,246 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2019-11-28 03:02:24,419 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:02:24,421 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:02:24,421 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:02:24,421 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:02:24,422 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:02:24,422 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:02:24,422 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:02:24,422 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:02:24,423 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_strlen-alloca-2.i_Iteration1_Lasso [2019-11-28 03:02:24,423 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:02:24,423 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:02:24,449 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 03:02:24,457 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 03:02:24,460 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 03:02:24,463 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 03:02:24,468 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 03:02:24,475 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 03:02:24,478 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 03:02:24,482 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 03:02:24,486 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 03:02:24,491 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 03:02:24,495 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 03:02:24,497 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 03:02:24,499 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 03:02:24,502 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 03:02:24,506 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 03:02:24,515 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 03:02:24,518 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 03:02:24,520 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 03:02:24,524 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 03:02:24,527 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 03:02:24,532 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 03:02:24,536 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 03:02:24,605 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 03:02:24,610 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 03:02:24,615 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 03:02:24,878 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:02:24,884 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 03:02:24,902 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 03:02:24,906 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:02:24,906 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:02:24,907 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:02:24,907 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:02:24,908 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:02:24,911 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:02:24,912 INFO L402 nArgumentSynthesizer]: A total of 0 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 03:02:24,916 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 03:02:24,936 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 03:02:24,938 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:02:24,938 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:02:24,939 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:02:24,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:02:24,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:02:24,940 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:02:24,940 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:02:24,947 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 03:02:24,968 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 03:02:24,970 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:02:24,970 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:02:24,971 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:02:24,971 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:02:24,971 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:02:24,973 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:02:24,973 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:02:24,975 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) [2019-11-28 03:02:24,992 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 03:02:24,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:02:24,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:02:24,995 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:02:24,996 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:02:25,001 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:02:25,002 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:02:25,007 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:02:25,025 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 03:02:25,028 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:02:25,028 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:02:25,029 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:02:25,029 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:02:25,029 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:02:25,031 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:02:25,031 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:02:25,036 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:02:25,053 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 03:02:25,055 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:02:25,056 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:02:25,056 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:02:25,056 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:02:25,065 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:02:25,065 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:02:25,072 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:02:25,089 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 03:02:25,090 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:02:25,091 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:02:25,091 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:02:25,091 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:02:25,091 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:02:25,093 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:02:25,094 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:02:25,095 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:02:25,108 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 03:02:25,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:02:25,110 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:02:25,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:02:25,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:02:25,115 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:02:25,115 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:02:25,122 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:02:25,136 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 03:02:25,138 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:02:25,138 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:02:25,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:02:25,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:02:25,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:02:25,144 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:02:25,144 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:02:25,148 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) [2019-11-28 03:02:25,161 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 03:02:25,163 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:02:25,163 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:02:25,163 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:02:25,163 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:02:25,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:02:25,167 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:02:25,167 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:02:25,174 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 03:02:25,195 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 03:02:25,198 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:02:25,198 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:02:25,198 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:02:25,198 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:02:25,199 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:02:25,200 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:02:25,200 INFO L402 nArgumentSynthesizer]: A total of 0 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 03:02:25,202 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 03:02:25,221 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 03:02:25,223 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:02:25,223 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:02:25,223 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:02:25,223 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:02:25,229 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:02:25,229 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 03:02:25,235 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 03:02:25,251 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 03:02:25,255 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:02:25,255 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:02:25,256 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:02:25,256 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:02:25,256 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:02:25,257 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:02:25,257 INFO L402 nArgumentSynthesizer]: A total of 0 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 03:02:25,261 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 03:02:25,276 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 03:02:25,278 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:02:25,278 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:02:25,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:02:25,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:02:25,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:02:25,280 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:02:25,280 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:02:25,282 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) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:02:25,295 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 03:02:25,297 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:02:25,298 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:02:25,298 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:02:25,298 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:02:25,298 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:02:25,299 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:02:25,299 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:02:25,301 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 03:02:25,314 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 03:02:25,316 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:02:25,317 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:02:25,317 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:02:25,317 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:02:25,317 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:02:25,320 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:02:25,320 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:02:25,325 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 03:02:25,338 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 03:02:25,341 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:02:25,342 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:02:25,342 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:02:25,342 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:02:25,345 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:02:25,346 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 03:02:25,351 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 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:02:25,362 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 03:02:25,364 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:02:25,365 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:02:25,365 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:02:25,366 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:02:25,366 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:02:25,367 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:02:25,367 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:02:25,370 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:02:25,379 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 03:02:25,381 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:02:25,381 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:02:25,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:02:25,382 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:02:25,386 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:02:25,387 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:02:25,393 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:02:25,411 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 03:02:25,413 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:02:25,413 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:02:25,413 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:02:25,413 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:02:25,419 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:02:25,419 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:02:25,427 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:02:25,441 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 03:02:25,443 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:02:25,443 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:02:25,443 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:02:25,444 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-28 03:02:25,444 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:02:25,445 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-11-28 03:02:25,446 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:02:25,449 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) [2019-11-28 03:02:25,456 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 03:02:25,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:02:25,458 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:02:25,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:02:25,458 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:02:25,462 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:02:25,463 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:02:25,470 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) [2019-11-28 03:02:25,477 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 03:02:25,479 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:02:25,480 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:02:25,480 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:02:25,480 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:02:25,486 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:02:25,486 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:02:25,496 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:02:25,586 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2019-11-28 03:02:25,586 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 5 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:02:25,665 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:02:25,670 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-28 03:02:25,670 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:02:25,671 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length strlen_rec_#in~p.base)_1, strlen_rec_#in~p.offset) = 1*v_rep(select #length strlen_rec_#in~p.base)_1 - 1*strlen_rec_#in~p.offset Supporting invariants [] [2019-11-28 03:02:25,696 INFO L297 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2019-11-28 03:02:25,708 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-28 03:02:25,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:02:25,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:02:25,775 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 03:02:25,778 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:02:25,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:02:25,804 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-28 03:02:25,806 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:02:25,836 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 03:02:25,858 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 03:02:25,860 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 3 states. [2019-11-28 03:02:25,976 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 3 states. Result 30 states and 35 transitions. Complement of second has 8 states. [2019-11-28 03:02:25,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 03:02:25,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 03:02:25,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2019-11-28 03:02:25,985 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 5 letters. Loop has 3 letters. [2019-11-28 03:02:25,989 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:02:25,991 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 3 letters. [2019-11-28 03:02:25,992 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:02:25,992 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 5 letters. Loop has 6 letters. [2019-11-28 03:02:25,993 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:02:25,994 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2019-11-28 03:02:26,001 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 03:02:26,005 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2019-11-28 03:02:26,006 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-28 03:02:26,007 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-28 03:02:26,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-28 03:02:26,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:02:26,008 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:02:26,008 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:02:26,008 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 03:02:26,008 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 03:02:26,009 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-28 03:02:26,009 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 03:02:26,009 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-28 03:02:26,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:02:26 BoogieIcfgContainer [2019-11-28 03:02:26,016 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 03:02:26,018 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 03:02:26,019 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 03:02:26,019 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 03:02:26,020 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:02:23" (3/4) ... [2019-11-28 03:02:26,027 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 03:02:26,027 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 03:02:26,031 INFO L168 Benchmark]: Toolchain (without parser) took 3420.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 216.0 MB). Free memory was 960.4 MB in the beginning and 1.2 GB in the end (delta: -210.3 MB). Peak memory consumption was 5.7 MB. Max. memory is 11.5 GB. [2019-11-28 03:02:26,032 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:02:26,038 INFO L168 Benchmark]: CACSL2BoogieTranslator took 570.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -160.4 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-11-28 03:02:26,039 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.68 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 03:02:26,040 INFO L168 Benchmark]: Boogie Preprocessor took 23.37 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 03:02:26,042 INFO L168 Benchmark]: RCFGBuilder took 290.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-11-28 03:02:26,042 INFO L168 Benchmark]: BuchiAutomizer took 2467.98 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 71.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -75.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:02:26,043 INFO L168 Benchmark]: Witness Printer took 9.32 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:02:26,057 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 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 570.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -160.4 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 52.68 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. * Boogie Preprocessor took 23.37 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 290.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2467.98 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 71.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -75.1 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 9.32 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[p] + -1 * p and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 10 SDtfs, 12 SDslu, 3 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital89 mio100 ax120 hnf99 lsp77 ukn63 mio100 lsp51 div100 bol100 ite100 ukn100 eq166 hnf91 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 28ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...