./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-memsafety/rec_strlen-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c 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/rec_strlen-alloca-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1915ee2ae984f6ece38fc0dcbac99e0ba37faddf .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 21:26:03,240 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:26:03,242 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:26:03,255 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:26:03,255 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:26:03,257 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:26:03,258 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:26:03,260 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:26:03,262 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:26:03,264 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:26:03,265 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:26:03,266 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:26:03,267 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:26:03,268 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:26:03,269 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:26:03,271 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:26:03,272 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:26:03,274 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:26:03,276 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:26:03,281 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:26:03,286 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:26:03,290 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:26:03,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:26:03,296 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:26:03,301 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:26:03,302 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:26:03,302 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:26:03,303 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:26:03,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:26:03,306 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:26:03,308 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:26:03,309 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:26:03,310 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:26:03,311 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:26:03,313 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:26:03,314 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:26:03,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:26:03,315 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:26:03,315 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:26:03,316 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:26:03,317 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:26:03,318 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:26:03,351 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:26:03,351 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:26:03,353 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:26:03,354 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:26:03,354 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:26:03,354 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:26:03,355 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:26:03,355 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:26:03,355 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:26:03,355 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:26:03,357 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:26:03,357 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:26:03,357 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:26:03,358 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:26:03,358 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:26:03,358 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:26:03,359 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:26:03,359 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:26:03,359 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:26:03,359 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:26:03,360 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:26:03,360 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:26:03,360 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:26:03,361 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:26:03,361 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:26:03,361 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:26:03,361 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:26:03,362 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:26:03,362 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:26:03,362 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:26:03,362 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:26:03,364 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:26:03,366 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:26:03,367 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 -> 1915ee2ae984f6ece38fc0dcbac99e0ba37faddf [2019-11-28 21:26:03,704 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:26:03,726 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:26:03,730 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:26:03,732 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:26:03,732 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:26:03,733 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/rec_strlen-alloca-1.i [2019-11-28 21:26:03,809 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cda0c8ce4/83710f64088b4442974dd8669d58f3aa/FLAG505c85cad [2019-11-28 21:26:04,381 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:26:04,382 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/rec_strlen-alloca-1.i [2019-11-28 21:26:04,407 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cda0c8ce4/83710f64088b4442974dd8669d58f3aa/FLAG505c85cad [2019-11-28 21:26:04,662 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cda0c8ce4/83710f64088b4442974dd8669d58f3aa [2019-11-28 21:26:04,665 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:26:04,668 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:26:04,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:26:04,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:26:04,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:26:04,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:26:04" (1/1) ... [2019-11-28 21:26:04,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22ceee9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:26:04, skipping insertion in model container [2019-11-28 21:26:04,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:26:04" (1/1) ... [2019-11-28 21:26:04,685 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:26:04,730 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:26:05,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:26:05,082 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:26:05,161 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:26:05,214 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:26:05,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:26:05 WrapperNode [2019-11-28 21:26:05,215 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:26:05,215 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:26:05,216 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:26:05,216 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:26:05,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:26:05" (1/1) ... [2019-11-28 21:26:05,240 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:26:05" (1/1) ... [2019-11-28 21:26:05,261 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:26:05,262 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:26:05,262 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:26:05,262 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:26:05,269 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:26:05" (1/1) ... [2019-11-28 21:26:05,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:26:05" (1/1) ... [2019-11-28 21:26:05,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:26:05" (1/1) ... [2019-11-28 21:26:05,273 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:26:05" (1/1) ... [2019-11-28 21:26:05,278 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:26:05" (1/1) ... [2019-11-28 21:26:05,283 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:26:05" (1/1) ... [2019-11-28 21:26:05,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:26:05" (1/1) ... [2019-11-28 21:26:05,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:26:05,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:26:05,287 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:26:05,287 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:26:05,288 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:26:05" (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 21:26:05,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 21:26:05,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 21:26:05,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 21:26:05,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 21:26:05,356 INFO L130 BoogieDeclarations]: Found specification of procedure strlen_rec [2019-11-28 21:26:05,356 INFO L138 BoogieDeclarations]: Found implementation of procedure strlen_rec [2019-11-28 21:26:05,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:26:05,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:26:05,642 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:26:05,642 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-28 21:26:05,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:26:05 BoogieIcfgContainer [2019-11-28 21:26:05,644 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:26:05,644 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:26:05,645 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:26:05,648 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:26:05,650 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:26:05,650 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:26:04" (1/3) ... [2019-11-28 21:26:05,652 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5dd1677b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:26:05, skipping insertion in model container [2019-11-28 21:26:05,652 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:26:05,652 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:26:05" (2/3) ... [2019-11-28 21:26:05,653 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5dd1677b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:26:05, skipping insertion in model container [2019-11-28 21:26:05,653 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:26:05,653 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:26:05" (3/3) ... [2019-11-28 21:26:05,655 INFO L371 chiAutomizerObserver]: Analyzing ICFG rec_strlen-alloca-1.i [2019-11-28 21:26:05,729 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:26:05,730 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:26:05,730 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:26:05,730 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:26:05,730 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:26:05,730 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:26:05,731 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:26:05,731 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:26:05,751 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-11-28 21:26:05,784 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-11-28 21:26:05,785 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:26:05,785 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:26:05,794 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-28 21:26:05,794 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 21:26:05,794 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:26:05,795 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-11-28 21:26:05,798 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-11-28 21:26:05,798 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:26:05,798 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:26:05,799 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-28 21:26:05,800 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 21:26:05,808 INFO L794 eck$LassoCheckResult]: Stem: 15#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 12#L-1true havoc main_#res;havoc main_#t~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_~i~0, main_#t~ret8, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet4;havoc main_#t~nondet4; 11#L522true assume !(main_~length1~0 < 1); 16#L522-2true call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;main_~i~0 := 0; 5#L527-3true [2019-11-28 21:26:05,809 INFO L796 eck$LassoCheckResult]: Loop: 5#L527-3true assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet7, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4#L527-2true main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5#L527-3true [2019-11-28 21:26:05,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:26:05,816 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2019-11-28 21:26:05,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:26:05,827 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638497698] [2019-11-28 21:26:05,827 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:26:05,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:26:05,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:26:05,979 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:26:05,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:26:05,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1507, now seen corresponding path program 1 times [2019-11-28 21:26:05,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:26:05,981 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545069346] [2019-11-28 21:26:05,981 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:26:05,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:26:06,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:26:06,012 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:26:06,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:26:06,017 INFO L82 PathProgramCache]: Analyzing trace with hash 889568455, now seen corresponding path program 1 times [2019-11-28 21:26:06,017 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:26:06,018 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296170219] [2019-11-28 21:26:06,018 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:26:06,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:26:06,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:26:06,062 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:26:06,247 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2019-11-28 21:26:06,305 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 21:26:06,306 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 21:26:06,307 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 21:26:06,307 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 21:26:06,307 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 21:26:06,307 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:26:06,308 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 21:26:06,308 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 21:26:06,308 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_strlen-alloca-1.i_Iteration1_Lasso [2019-11-28 21:26:06,308 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 21:26:06,309 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 21:26:06,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 21:26:06,343 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 21:26:06,345 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 21:26:06,348 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 21:26:06,352 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 21:26:06,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 21:26:06,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 21:26:06,366 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 21:26:06,371 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 21:26:06,375 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 21:26:06,816 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 21:26:06,821 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 21:26:06,834 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:26:06,836 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 21:26:06,837 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 21:26:06,837 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 21:26:06,837 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 21:26:06,838 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 21:26:06,840 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 21:26:06,840 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 21:26:06,846 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 21:26:06,854 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 21:26:06,855 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 21:26:06,856 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 21:26:06,856 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 21:26:06,856 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 21:26:06,856 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 21:26:06,857 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 21:26:06,857 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 21:26:06,860 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 21:26:06,875 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 21:26:06,876 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 21:26:06,877 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 21:26:06,877 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 21:26:06,877 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 21:26:06,877 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 21:26:06,878 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 21:26:06,878 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:26:06,880 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 21:26:06,893 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 21:26:06,899 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 21:26:06,899 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 21:26:06,900 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 21:26:06,900 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 21:26:06,906 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 21:26:06,909 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 21:26:06,920 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 21:26:06,938 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 21:26:06,940 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 21:26:06,941 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 21:26:06,941 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 21:26:06,941 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 21:26:06,946 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 21:26:06,947 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 21:26:06,957 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) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:26:06,964 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 21:26:06,966 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 21:26:06,966 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 21:26:06,966 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 21:26:06,966 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 21:26:06,973 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 21:26:06,974 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 21:26:06,980 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) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:26:06,997 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 21:26:06,999 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 21:26:06,999 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 21:26:06,999 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 21:26:06,999 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 21:26:07,002 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 21:26:07,002 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 21:26:07,007 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 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 21:26:07,029 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 21:26:07,031 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 21:26:07,032 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 21:26:07,032 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 21:26:07,032 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 21:26:07,035 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 21:26:07,035 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 21:26:07,042 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 21:26:07,057 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 21:26:07,059 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 21:26:07,059 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 21:26:07,060 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 21:26:07,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 21:26:07,060 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 21:26:07,061 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 21:26:07,061 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 21:26:07,063 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 21:26:07,079 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 21:26:07,081 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 21:26:07,081 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 21:26:07,081 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 21:26:07,082 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 21:26:07,086 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 21:26:07,086 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 21:26:07,093 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 21:26:07,109 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 21:26:07,111 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 21:26:07,111 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 21:26:07,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 21:26:07,112 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 21:26:07,112 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 21:26:07,112 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 21:26:07,113 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 21:26:07,115 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) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:26:07,123 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 21:26:07,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 21:26:07,125 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 21:26:07,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 21:26:07,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 21:26:07,134 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 21:26:07,134 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 21:26:07,149 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 21:26:07,201 INFO L443 ModelExtractionUtils]: Simplification made 17 calls to the SMT solver. [2019-11-28 21:26:07,201 INFO L444 ModelExtractionUtils]: 6 out of 22 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 21:26:07,211 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:26:07,215 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-28 21:26:07,215 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 21:26:07,216 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 21:26:07,236 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-11-28 21:26:07,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:26:07,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:26:07,308 INFO L264 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 21:26:07,311 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 21:26:07,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:26:07,329 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 21:26:07,331 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 21:26:07,351 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 21:26:07,372 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 21:26:07,374 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states. Second operand 3 states. [2019-11-28 21:26:07,461 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states.. Second operand 3 states. Result 34 states and 43 transitions. Complement of second has 9 states. [2019-11-28 21:26:07,462 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 21:26:07,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 21:26:07,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 23 transitions. [2019-11-28 21:26:07,469 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-28 21:26:07,470 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 21:26:07,471 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 6 letters. Loop has 2 letters. [2019-11-28 21:26:07,471 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 21:26:07,471 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 4 letters. Loop has 4 letters. [2019-11-28 21:26:07,473 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 21:26:07,474 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 43 transitions. [2019-11-28 21:26:07,480 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 21:26:07,490 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 12 states and 15 transitions. [2019-11-28 21:26:07,491 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2019-11-28 21:26:07,492 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-11-28 21:26:07,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2019-11-28 21:26:07,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:26:07,494 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2019-11-28 21:26:07,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2019-11-28 21:26:07,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-28 21:26:07,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-28 21:26:07,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2019-11-28 21:26:07,532 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2019-11-28 21:26:07,532 INFO L591 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2019-11-28 21:26:07,532 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:26:07,533 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2019-11-28 21:26:07,533 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 21:26:07,534 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:26:07,534 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:26:07,534 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:26:07,535 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 21:26:07,535 INFO L794 eck$LassoCheckResult]: Stem: 116#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 111#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_~i~0, main_#t~ret8, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet4;havoc main_#t~nondet4; 112#L522 assume !(main_~length1~0 < 1); 118#L522-2 call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;main_~i~0 := 0; 119#L527-3 assume !(main_~i~0 < main_~length1~0 - 1); 122#L527-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1); 114#L533 call main_#t~ret8 := strlen_rec(main_~nondetString1~0.base, main_~nondetString1~0.offset);< 115#strlen_recENTRY [2019-11-28 21:26:07,535 INFO L796 eck$LassoCheckResult]: Loop: 115#strlen_recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem2 := read~int(~p.base, ~p.offset, 1); 117#L515 assume !(0 == #t~mem2);havoc #t~mem2; 113#L518 call #t~ret3 := strlen_rec(~p.base, 1 + ~p.offset);< 115#strlen_recENTRY [2019-11-28 21:26:07,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:26:07,536 INFO L82 PathProgramCache]: Analyzing trace with hash 1806816568, now seen corresponding path program 1 times [2019-11-28 21:26:07,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:26:07,537 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407531480] [2019-11-28 21:26:07,537 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:26:07,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:26:07,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:26:07,569 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:26:07,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:26:07,570 INFO L82 PathProgramCache]: Analyzing trace with hash 58722, now seen corresponding path program 1 times [2019-11-28 21:26:07,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:26:07,571 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841327060] [2019-11-28 21:26:07,571 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:26:07,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:26:07,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:26:07,586 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:26:07,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:26:07,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1952714549, now seen corresponding path program 1 times [2019-11-28 21:26:07,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:26:07,589 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208475394] [2019-11-28 21:26:07,589 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:26:07,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:26:07,848 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 21:26:07,849 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208475394] [2019-11-28 21:26:07,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:26:07,850 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-28 21:26:07,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710530770] [2019-11-28 21:26:07,949 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:26:07,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-28 21:26:07,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-28 21:26:07,953 INFO L87 Difference]: Start difference. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand 8 states. [2019-11-28 21:26:08,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:26:08,050 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2019-11-28 21:26:08,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 21:26:08,052 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 19 transitions. [2019-11-28 21:26:08,053 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 21:26:08,054 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 13 states and 15 transitions. [2019-11-28 21:26:08,055 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-28 21:26:08,055 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-11-28 21:26:08,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 15 transitions. [2019-11-28 21:26:08,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:26:08,055 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 15 transitions. [2019-11-28 21:26:08,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 15 transitions. [2019-11-28 21:26:08,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2019-11-28 21:26:08,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-28 21:26:08,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2019-11-28 21:26:08,059 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-11-28 21:26:08,059 INFO L591 BuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-11-28 21:26:08,059 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 21:26:08,059 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 14 transitions. [2019-11-28 21:26:08,061 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 21:26:08,061 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:26:08,062 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:26:08,063 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:26:08,063 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 21:26:08,064 INFO L794 eck$LassoCheckResult]: Stem: 162#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 157#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_~i~0, main_#t~ret8, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet4;havoc main_#t~nondet4; 158#L522 assume !(main_~length1~0 < 1); 164#L522-2 call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;main_~i~0 := 0; 165#L527-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet7, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 166#L527-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 167#L527-3 assume !(main_~i~0 < main_~length1~0 - 1); 168#L527-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1); 160#L533 call main_#t~ret8 := strlen_rec(main_~nondetString1~0.base, main_~nondetString1~0.offset);< 161#strlen_recENTRY [2019-11-28 21:26:08,064 INFO L796 eck$LassoCheckResult]: Loop: 161#strlen_recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem2 := read~int(~p.base, ~p.offset, 1); 163#L515 assume !(0 == #t~mem2);havoc #t~mem2; 159#L518 call #t~ret3 := strlen_rec(~p.base, 1 + ~p.offset);< 161#strlen_recENTRY [2019-11-28 21:26:08,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:26:08,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1185641750, now seen corresponding path program 1 times [2019-11-28 21:26:08,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:26:08,066 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269277680] [2019-11-28 21:26:08,067 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:26:08,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:26:08,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:26:08,138 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:26:08,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:26:08,140 INFO L82 PathProgramCache]: Analyzing trace with hash 58722, now seen corresponding path program 2 times [2019-11-28 21:26:08,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:26:08,142 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427965917] [2019-11-28 21:26:08,142 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:26:08,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:26:08,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:26:08,158 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:26:08,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:26:08,160 INFO L82 PathProgramCache]: Analyzing trace with hash -357639123, now seen corresponding path program 1 times [2019-11-28 21:26:08,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:26:08,161 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89101309] [2019-11-28 21:26:08,161 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:26:08,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:26:08,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:26:08,226 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:26:08,499 WARN L192 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-11-28 21:26:08,688 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 21:26:08,688 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 21:26:08,688 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 21:26:08,688 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 21:26:08,688 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 21:26:08,688 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:26:08,689 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 21:26:08,689 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 21:26:08,689 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_strlen-alloca-1.i_Iteration3_Lasso [2019-11-28 21:26:08,689 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 21:26:08,689 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 21:26:08,695 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 21:26:08,699 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 21:26:08,700 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 21:26:08,702 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 21:26:08,704 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 21:26:08,707 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 21:26:08,710 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 21:26:08,712 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 21:26:08,716 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 21:26:08,717 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 21:26:08,719 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 21:26:08,722 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 21:26:08,724 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 21:26:08,727 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 21:26:08,729 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 21:26:08,731 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 21:26:08,739 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 21:26:08,783 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 21:26:08,785 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 21:26:08,788 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 21:26:08,790 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 21:26:08,792 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 21:26:08,795 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 21:26:08,797 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 21:26:08,798 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 21:26:08,800 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 21:26:08,802 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 21:26:08,804 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 21:26:08,993 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 21:26:08,994 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 21:26:09,005 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 21:26:09,007 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 21:26:09,007 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 21:26:09,007 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 21:26:09,007 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 21:26:09,007 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 21:26:09,008 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 21:26:09,008 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:26:09,010 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 21:26:09,021 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 21:26:09,023 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 21:26:09,023 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 21:26:09,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 21:26:09,024 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 21:26:09,024 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 21:26:09,024 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 21:26:09,024 INFO L402 nArgumentSynthesizer]: A total of 0 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 21:26:09,026 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 21:26:09,045 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 21:26:09,047 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 21:26:09,047 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 21:26:09,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 21:26:09,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 21:26:09,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 21:26:09,049 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 21:26:09,049 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 21:26:09,059 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) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:26:09,071 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 21:26:09,073 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 21:26:09,073 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 21:26:09,073 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 21:26:09,073 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 21:26:09,073 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 21:26:09,074 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 21:26:09,074 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 21:26:09,076 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 21:26:09,083 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 21:26:09,085 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 21:26:09,085 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 21:26:09,085 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 21:26:09,085 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 21:26:09,087 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 21:26:09,087 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 21:26:09,091 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 21:26:09,100 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 21:26:09,101 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 21:26:09,102 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 21:26:09,102 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 21:26:09,102 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 21:26:09,102 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 21:26:09,103 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 21:26:09,103 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 21:26:09,104 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 21:26:09,117 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 21:26:09,118 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 21:26:09,118 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 21:26:09,118 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 21:26:09,118 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 21:26:09,118 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 21:26:09,119 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 21:26:09,119 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 21:26:09,121 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 21:26:09,133 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 21:26:09,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 21:26:09,135 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 21:26:09,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 21:26:09,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 21:26:09,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 21:26:09,138 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 21:26:09,138 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 21:26:09,140 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 21:26:09,147 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:26:09,149 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 21:26:09,149 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 21:26:09,149 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 21:26:09,150 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 21:26:09,150 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 21:26:09,150 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 21:26:09,150 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 21:26:09,155 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 21:26:09,163 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 21:26:09,164 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 21:26:09,165 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 21:26:09,165 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 21:26:09,165 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 21:26:09,173 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 21:26:09,173 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 21:26:09,182 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 21:26:09,190 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 21:26:09,192 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 21:26:09,192 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 21:26:09,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 21:26:09,192 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 21:26:09,192 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 21:26:09,195 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 21:26:09,195 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:26:09,197 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 21:26:09,206 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 21:26:09,208 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 21:26:09,208 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 21:26:09,208 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 21:26:09,209 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 21:26:09,209 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 21:26:09,209 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 21:26:09,210 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:26:09,216 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 21:26:09,223 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 21:26:09,225 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 21:26:09,225 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 21:26:09,225 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 21:26:09,225 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 21:26:09,226 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 21:26:09,227 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 21:26:09,227 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:26:09,229 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 21:26:09,238 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 21:26:09,240 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 21:26:09,240 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 21:26:09,240 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 21:26:09,241 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 21:26:09,241 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 21:26:09,241 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 21:26:09,241 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:26:09,244 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 21:26:09,253 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 21:26:09,255 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 21:26:09,255 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 21:26:09,255 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 21:26:09,255 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 21:26:09,256 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 21:26:09,256 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 21:26:09,256 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:26:09,259 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 21:26:09,267 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 21:26:09,269 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 21:26:09,269 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 21:26:09,269 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 21:26:09,269 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-28 21:26:09,269 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 21:26:09,271 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-11-28 21:26:09,271 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:26:09,274 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 21:26:09,284 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 21:26:09,285 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 21:26:09,286 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 21:26:09,286 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 21:26:09,286 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 21:26:09,289 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 21:26:09,289 INFO L402 nArgumentSynthesizer]: A total of 2 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 21:26:09,297 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 21:26:09,305 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 21:26:09,307 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 21:26:09,308 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 21:26:09,308 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 21:26:09,308 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 21:26:09,312 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 21:26:09,312 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:26:09,319 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 21:26:09,327 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 21:26:09,329 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 21:26:09,330 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 21:26:09,330 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 21:26:09,330 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 21:26:09,335 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 21:26:09,335 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:26:09,346 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 21:26:09,370 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2019-11-28 21:26:09,371 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 21:26:09,376 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:26:09,379 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-28 21:26:09,380 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 21:26:09,380 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(strlen_rec_#in~p.offset, v_rep(select #length strlen_rec_#in~p.base)_1) = -1*strlen_rec_#in~p.offset + 1*v_rep(select #length strlen_rec_#in~p.base)_1 Supporting invariants [] [2019-11-28 21:26:09,389 INFO L297 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2019-11-28 21:26:09,392 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-28 21:26:09,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:26:09,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:26:09,436 INFO L264 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 21:26:09,440 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 21:26:09,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:26:09,460 INFO L264 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-28 21:26:09,462 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 21:26:09,488 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 21:26:09,490 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 21:26:09,490 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4 Second operand 3 states. [2019-11-28 21:26:09,521 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 19 states and 21 transitions. Complement of second has 7 states. [2019-11-28 21:26:09,522 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 21:26:09,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 21:26:09,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2019-11-28 21:26:09,523 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-28 21:26:09,525 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 21:26:09,525 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 12 letters. Loop has 3 letters. [2019-11-28 21:26:09,525 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 21:26:09,525 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 9 letters. Loop has 6 letters. [2019-11-28 21:26:09,525 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 21:26:09,530 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 21 transitions. [2019-11-28 21:26:09,531 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 21:26:09,531 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 0 states and 0 transitions. [2019-11-28 21:26:09,531 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-28 21:26:09,532 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-28 21:26:09,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-28 21:26:09,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:26:09,532 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 21:26:09,532 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 21:26:09,532 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 21:26:09,532 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 21:26:09,533 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-28 21:26:09,538 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 21:26:09,538 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-28 21:26:09,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:26:09 BoogieIcfgContainer [2019-11-28 21:26:09,550 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:26:09,551 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:26:09,551 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:26:09,551 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:26:09,554 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:26:05" (3/4) ... [2019-11-28 21:26:09,558 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 21:26:09,558 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:26:09,561 INFO L168 Benchmark]: Toolchain (without parser) took 4893.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Free memory was 956.3 MB in the beginning and 973.4 MB in the end (delta: -17.1 MB). Peak memory consumption was 173.3 MB. Max. memory is 11.5 GB. [2019-11-28 21:26:09,562 INFO L168 Benchmark]: CDTParser took 0.27 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 21:26:09,563 INFO L168 Benchmark]: CACSL2BoogieTranslator took 545.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.3 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -129.4 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2019-11-28 21:26:09,568 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-28 21:26:09,569 INFO L168 Benchmark]: Boogie Preprocessor took 24.79 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:26:09,570 INFO L168 Benchmark]: RCFGBuilder took 356.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2019-11-28 21:26:09,573 INFO L168 Benchmark]: BuchiAutomizer took 3906.16 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 87.0 MB). Free memory was 1.1 GB in the beginning and 973.4 MB in the end (delta: 80.6 MB). Peak memory consumption was 167.6 MB. Max. memory is 11.5 GB. [2019-11-28 21:26:09,574 INFO L168 Benchmark]: Witness Printer took 7.19 ms. Allocated memory is still 1.2 GB. Free memory is still 973.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:26:09,585 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 545.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.3 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -129.4 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.79 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 356.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3906.16 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 87.0 MB). Free memory was 1.1 GB in the beginning and 973.4 MB in the end (delta: 80.6 MB). Peak memory consumption was 167.6 MB. Max. memory is 11.5 GB. * Witness Printer took 7.19 ms. Allocated memory is still 1.2 GB. Free memory is still 973.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 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 * p + unknown-#length-unknown[p] and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 25 SDtfs, 31 SDslu, 21 SDs, 0 SdLazy, 53 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital97 mio100 ax118 hnf99 lsp79 ukn71 mio100 lsp59 div100 bol100 ite100 ukn100 eq155 hnf92 smp96 dnf100 smp100 tf100 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 36ms 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...