./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-15/cstrpbrk_mixed_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/termination-15/cstrpbrk_mixed_alloca.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c9cfd4c0ab406cfeab77b774b2e25db3fba848a9 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 20:36:35,204 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:36:35,206 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:36:35,223 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:36:35,224 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:36:35,226 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:36:35,228 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:36:35,240 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:36:35,242 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:36:35,243 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:36:35,244 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:36:35,245 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:36:35,245 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:36:35,246 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:36:35,247 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:36:35,248 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:36:35,249 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:36:35,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:36:35,252 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:36:35,254 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:36:35,255 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:36:35,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:36:35,257 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:36:35,258 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:36:35,260 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:36:35,261 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:36:35,261 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:36:35,262 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:36:35,262 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:36:35,263 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:36:35,264 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:36:35,264 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:36:35,265 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:36:35,266 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:36:35,267 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:36:35,267 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:36:35,268 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:36:35,268 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:36:35,269 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:36:35,269 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:36:35,270 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:36:35,271 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-28 20:36:35,293 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:36:35,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:36:35,295 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:36:35,296 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:36:35,296 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:36:35,296 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 20:36:35,296 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 20:36:35,297 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 20:36:35,297 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 20:36:35,297 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 20:36:35,297 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 20:36:35,297 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:36:35,299 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:36:35,299 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:36:35,299 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:36:35,300 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 20:36:35,300 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 20:36:35,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 20:36:35,301 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 20:36:35,301 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 20:36:35,301 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:36:35,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 20:36:35,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:36:35,302 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:36:35,302 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 20:36:35,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:36:35,303 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:36:35,303 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:36:35,303 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 20:36:35,305 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 20:36:35,305 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9cfd4c0ab406cfeab77b774b2e25db3fba848a9 [2019-11-28 20:36:35,619 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:36:35,639 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:36:35,643 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:36:35,645 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:36:35,646 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:36:35,647 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-15/cstrpbrk_mixed_alloca.i [2019-11-28 20:36:35,710 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d50000f7/c7befb23613e46eab000dfbf76aa4133/FLAGf8ccb1162 [2019-11-28 20:36:36,211 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:36:36,212 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-15/cstrpbrk_mixed_alloca.i [2019-11-28 20:36:36,224 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d50000f7/c7befb23613e46eab000dfbf76aa4133/FLAGf8ccb1162 [2019-11-28 20:36:36,541 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d50000f7/c7befb23613e46eab000dfbf76aa4133 [2019-11-28 20:36:36,544 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:36:36,546 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 20:36:36,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:36:36,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:36:36,550 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:36:36,551 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:36:36" (1/1) ... [2019-11-28 20:36:36,554 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d5399f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:36, skipping insertion in model container [2019-11-28 20:36:36,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:36:36" (1/1) ... [2019-11-28 20:36:36,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:36:36,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:36:37,013 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:36:37,025 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:36:37,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:36:37,180 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:36:37,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:37 WrapperNode [2019-11-28 20:36:37,181 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:36:37,182 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 20:36:37,182 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 20:36:37,182 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 20:36:37,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:37" (1/1) ... [2019-11-28 20:36:37,211 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:37" (1/1) ... [2019-11-28 20:36:37,246 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 20:36:37,247 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:36:37,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:36:37,247 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:36:37,256 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:37" (1/1) ... [2019-11-28 20:36:37,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:37" (1/1) ... [2019-11-28 20:36:37,271 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:37" (1/1) ... [2019-11-28 20:36:37,272 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:37" (1/1) ... [2019-11-28 20:36:37,286 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:37" (1/1) ... [2019-11-28 20:36:37,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:37" (1/1) ... [2019-11-28 20:36:37,298 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:37" (1/1) ... [2019-11-28 20:36:37,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:36:37,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:36:37,308 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:36:37,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:36:37,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:37" (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 20:36:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 20:36:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 20:36:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 20:36:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 20:36:37,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:36:37,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:36:37,719 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:36:37,719 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-28 20:36:37,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:36:37 BoogieIcfgContainer [2019-11-28 20:36:37,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:36:37,722 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 20:36:37,722 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 20:36:37,726 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 20:36:37,727 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:36:37,727 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 08:36:36" (1/3) ... [2019-11-28 20:36:37,737 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@72951862 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:36:37, skipping insertion in model container [2019-11-28 20:36:37,737 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:36:37,737 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:36:37" (2/3) ... [2019-11-28 20:36:37,737 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@72951862 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:36:37, skipping insertion in model container [2019-11-28 20:36:37,738 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:36:37,738 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:36:37" (3/3) ... [2019-11-28 20:36:37,740 INFO L371 chiAutomizerObserver]: Analyzing ICFG cstrpbrk_mixed_alloca.i [2019-11-28 20:36:37,784 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 20:36:37,784 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 20:36:37,784 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 20:36:37,785 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:36:37,785 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:36:37,785 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 20:36:37,785 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:36:37,785 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 20:36:37,798 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-11-28 20:36:37,820 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-11-28 20:36:37,820 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:36:37,820 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:36:37,826 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-28 20:36:37,826 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:36:37,826 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 20:36:37,826 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-11-28 20:36:37,828 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-11-28 20:36:37,829 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:36:37,829 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:36:37,829 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-28 20:36:37,830 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-11-28 20:36:37,838 INFO L794 eck$LassoCheckResult]: Stem: 13#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 11#L-1true havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217.base, main_#t~ret217.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 12#L382true assume !(main_~length1~0 < 1); 15#L382-2true assume !(main_~length2~0 < 1); 9#L385-1true call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset, 1);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1);cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset, cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrpbrk_#res.base, cstrpbrk_#res.offset;havoc cstrpbrk_#t~mem207, cstrpbrk_#t~post211.base, cstrpbrk_#t~post211.offset, cstrpbrk_#t~mem208, cstrpbrk_#t~mem209, cstrpbrk_#t~short210, cstrpbrk_#t~mem212, cstrpbrk_#t~post205.base, cstrpbrk_#t~post205.offset, cstrpbrk_#t~mem206, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, cstrpbrk_~c~0;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset;cstrpbrk_~s2.base, cstrpbrk_~s2.offset := cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset;havoc cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset;havoc cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset;havoc cstrpbrk_~c~0;cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset; 6#L369-4true [2019-11-28 20:36:37,838 INFO L796 eck$LassoCheckResult]: Loop: 6#L369-4true call cstrpbrk_#t~mem206 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1); 18#L369-1true assume !!(0 != cstrpbrk_#t~mem206);havoc cstrpbrk_#t~mem206;cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset;call cstrpbrk_#t~mem207 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem207;havoc cstrpbrk_#t~mem207; 20#L372-5true assume !true; 4#L372-6true call cstrpbrk_#t~mem212 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1); 8#L374true assume !(cstrpbrk_#t~mem212 != cstrpbrk_~c~0);havoc cstrpbrk_#t~mem212; 5#L369-3true cstrpbrk_#t~post205.base, cstrpbrk_#t~post205.offset := cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset;cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset := cstrpbrk_#t~post205.base, 1 + cstrpbrk_#t~post205.offset;havoc cstrpbrk_#t~post205.base, cstrpbrk_#t~post205.offset; 6#L369-4true [2019-11-28 20:36:37,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:37,846 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2019-11-28 20:36:37,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:36:37,853 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040040174] [2019-11-28 20:36:37,854 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:36:37,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:38,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:38,051 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:36:38,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:38,053 INFO L82 PathProgramCache]: Analyzing trace with hash 1454917130, now seen corresponding path program 1 times [2019-11-28 20:36:38,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:36:38,053 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796079399] [2019-11-28 20:36:38,054 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:36:38,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:36:38,099 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 20:36:38,100 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796079399] [2019-11-28 20:36:38,101 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:36:38,102 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 20:36:38,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037383184] [2019-11-28 20:36:38,112 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 20:36:38,113 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:36:38,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 20:36:38,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 20:36:38,130 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2019-11-28 20:36:38,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:36:38,139 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2019-11-28 20:36:38,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 20:36:38,142 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2019-11-28 20:36:38,146 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-11-28 20:36:38,152 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 13 states and 17 transitions. [2019-11-28 20:36:38,154 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2019-11-28 20:36:38,155 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2019-11-28 20:36:38,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2019-11-28 20:36:38,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 20:36:38,157 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2019-11-28 20:36:38,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2019-11-28 20:36:38,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-11-28 20:36:38,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-28 20:36:38,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2019-11-28 20:36:38,183 INFO L711 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2019-11-28 20:36:38,183 INFO L591 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2019-11-28 20:36:38,183 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 20:36:38,183 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2019-11-28 20:36:38,184 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-11-28 20:36:38,184 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:36:38,185 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:36:38,185 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-28 20:36:38,185 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:36:38,186 INFO L794 eck$LassoCheckResult]: Stem: 55#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 50#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217.base, main_#t~ret217.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 51#L382 assume !(main_~length1~0 < 1); 52#L382-2 assume !(main_~length2~0 < 1); 49#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset, 1);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1);cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset, cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrpbrk_#res.base, cstrpbrk_#res.offset;havoc cstrpbrk_#t~mem207, cstrpbrk_#t~post211.base, cstrpbrk_#t~post211.offset, cstrpbrk_#t~mem208, cstrpbrk_#t~mem209, cstrpbrk_#t~short210, cstrpbrk_#t~mem212, cstrpbrk_#t~post205.base, cstrpbrk_#t~post205.offset, cstrpbrk_#t~mem206, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, cstrpbrk_~c~0;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset;cstrpbrk_~s2.base, cstrpbrk_~s2.offset := cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset;havoc cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset;havoc cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset;havoc cstrpbrk_~c~0;cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset; 47#L369-4 [2019-11-28 20:36:38,186 INFO L796 eck$LassoCheckResult]: Loop: 47#L369-4 call cstrpbrk_#t~mem206 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1); 48#L369-1 assume !!(0 != cstrpbrk_#t~mem206);havoc cstrpbrk_#t~mem206;cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset;call cstrpbrk_#t~mem207 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem207;havoc cstrpbrk_#t~mem207; 56#L372-5 call cstrpbrk_#t~mem208 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1);cstrpbrk_#t~short210 := 0 != cstrpbrk_#t~mem208; 53#L372-1 assume cstrpbrk_#t~short210;call cstrpbrk_#t~mem209 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1);cstrpbrk_#t~short210 := cstrpbrk_#t~mem209 != (if cstrpbrk_~c~0 % 256 <= 127 then cstrpbrk_~c~0 % 256 else cstrpbrk_~c~0 % 256 - 256); 54#L372-3 assume !cstrpbrk_#t~short210;havoc cstrpbrk_#t~mem209;havoc cstrpbrk_#t~short210;havoc cstrpbrk_#t~mem208; 44#L372-6 call cstrpbrk_#t~mem212 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1); 45#L374 assume !(cstrpbrk_#t~mem212 != cstrpbrk_~c~0);havoc cstrpbrk_#t~mem212; 46#L369-3 cstrpbrk_#t~post205.base, cstrpbrk_#t~post205.offset := cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset;cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset := cstrpbrk_#t~post205.base, 1 + cstrpbrk_#t~post205.offset;havoc cstrpbrk_#t~post205.base, cstrpbrk_#t~post205.offset; 47#L369-4 [2019-11-28 20:36:38,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:38,186 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 2 times [2019-11-28 20:36:38,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:36:38,187 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885739775] [2019-11-28 20:36:38,187 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:36:38,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:38,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:38,242 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:36:38,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:38,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1927396657, now seen corresponding path program 1 times [2019-11-28 20:36:38,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:36:38,245 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35729952] [2019-11-28 20:36:38,246 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:36:38,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:38,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:38,300 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:36:38,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:38,302 INFO L82 PathProgramCache]: Analyzing trace with hash -102988426, now seen corresponding path program 1 times [2019-11-28 20:36:38,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:36:38,302 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826450583] [2019-11-28 20:36:38,302 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:36:38,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:38,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:38,392 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:36:38,638 WARN L192 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-11-28 20:36:38,927 WARN L192 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-11-28 20:36:39,295 WARN L192 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2019-11-28 20:36:39,438 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2019-11-28 20:36:39,456 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:36:39,461 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:36:39,461 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:36:39,461 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:36:39,461 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 20:36:39,462 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:39,462 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:36:39,462 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:36:39,462 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrpbrk_mixed_alloca.i_Iteration2_Lasso [2019-11-28 20:36:39,463 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:36:39,463 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:36:39,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:39,512 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 20:36:39,516 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 20:36:39,519 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 20:36:39,526 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 20:36:39,537 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 20:36:39,541 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 20:36:39,912 WARN L192 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2019-11-28 20:36:40,125 WARN L192 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2019-11-28 20:36:40,127 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 20:36:40,130 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 20:36:40,132 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 20:36:40,134 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 20:36:40,136 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 20:36:40,139 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 20:36:40,141 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 20:36:40,143 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 20:36:40,146 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 20:36:40,150 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 20:36:40,158 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 20:36:40,162 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 20:36:40,165 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 20:36:40,741 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 29 [2019-11-28 20:36:40,870 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:36:40,876 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 20:36:40,892 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 20:36:40,895 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:40,895 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:40,896 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:40,896 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:40,897 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:40,899 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:40,900 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:40,903 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) [2019-11-28 20:36:40,916 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 20:36:40,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:40,918 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:40,919 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:40,919 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:40,919 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:40,920 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:40,920 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:40,928 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 20:36:40,956 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 20:36:40,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:40,958 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:40,958 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:40,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:40,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:40,959 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:40,960 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:40,969 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:40,995 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 20:36:40,996 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:40,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:40,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:40,997 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:41,001 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:36:41,002 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:36:41,006 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:36:41,020 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 20:36:41,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:41,023 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:41,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:41,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:41,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:41,025 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:41,025 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:41,027 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 20:36:41,045 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 20:36:41,047 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:41,047 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:41,047 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:41,047 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:41,047 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:41,048 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:41,048 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:41,050 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 20:36:41,057 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 20:36:41,059 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:41,059 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:41,059 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:41,060 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:41,091 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:36:41,092 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:36:41,114 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 20:36:41,258 INFO L443 ModelExtractionUtils]: Simplification made 17 calls to the SMT solver. [2019-11-28 20:36:41,258 INFO L444 ModelExtractionUtils]: 14 out of 40 variables were initially zero. Simplification set additionally 21 variables to zero. 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 20:36:41,277 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 20:36:41,284 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-28 20:36:41,284 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 20:36:41,285 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrpbrk_~sc1~0.offset, ULTIMATE.start_main_~length1~0) = -1*ULTIMATE.start_cstrpbrk_~sc1~0.offset + 1*ULTIMATE.start_main_~length1~0 Supporting invariants [1*ULTIMATE.start_main_~length1~0 - 1*v_rep(select #length ULTIMATE.start_cstrpbrk_~sc1~0.base)_1 >= 0] [2019-11-28 20:36:41,332 INFO L297 tatePredicateManager]: 8 out of 9 supporting invariants were superfluous and have been removed [2019-11-28 20:36:41,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:41,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:36:41,418 INFO L264 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-28 20:36:41,420 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:36:41,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:36:41,445 INFO L264 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-28 20:36:41,446 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:36:41,474 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 20:36:41,478 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 20:36:41,479 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-11-28 20:36:41,561 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 21 states and 28 transitions. Complement of second has 4 states. [2019-11-28 20:36:41,563 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 20:36:41,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 20:36:41,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 17 transitions. [2019-11-28 20:36:41,566 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 8 letters. [2019-11-28 20:36:41,568 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:36:41,568 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 13 letters. Loop has 8 letters. [2019-11-28 20:36:41,569 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:36:41,569 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 16 letters. [2019-11-28 20:36:41,569 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:36:41,570 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 28 transitions. [2019-11-28 20:36:41,572 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 20:36:41,574 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 18 states and 25 transitions. [2019-11-28 20:36:41,574 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2019-11-28 20:36:41,576 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-11-28 20:36:41,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 25 transitions. [2019-11-28 20:36:41,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 20:36:41,576 INFO L688 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2019-11-28 20:36:41,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 25 transitions. [2019-11-28 20:36:41,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-28 20:36:41,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-28 20:36:41,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2019-11-28 20:36:41,580 INFO L711 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2019-11-28 20:36:41,580 INFO L591 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2019-11-28 20:36:41,580 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 20:36:41,580 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2019-11-28 20:36:41,586 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 20:36:41,593 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:36:41,593 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:36:41,593 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:36:41,593 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 20:36:41,594 INFO L794 eck$LassoCheckResult]: Stem: 193#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 186#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217.base, main_#t~ret217.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 187#L382 assume !(main_~length1~0 < 1); 188#L382-2 assume !(main_~length2~0 < 1); 185#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset, 1);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1);cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset, cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrpbrk_#res.base, cstrpbrk_#res.offset;havoc cstrpbrk_#t~mem207, cstrpbrk_#t~post211.base, cstrpbrk_#t~post211.offset, cstrpbrk_#t~mem208, cstrpbrk_#t~mem209, cstrpbrk_#t~short210, cstrpbrk_#t~mem212, cstrpbrk_#t~post205.base, cstrpbrk_#t~post205.offset, cstrpbrk_#t~mem206, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, cstrpbrk_~c~0;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset;cstrpbrk_~s2.base, cstrpbrk_~s2.offset := cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset;havoc cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset;havoc cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset;havoc cstrpbrk_~c~0;cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset; 182#L369-4 call cstrpbrk_#t~mem206 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1); 184#L369-1 assume !!(0 != cstrpbrk_#t~mem206);havoc cstrpbrk_#t~mem206;cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset;call cstrpbrk_#t~mem207 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem207;havoc cstrpbrk_#t~mem207; 194#L372-5 [2019-11-28 20:36:41,594 INFO L796 eck$LassoCheckResult]: Loop: 194#L372-5 call cstrpbrk_#t~mem208 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1);cstrpbrk_#t~short210 := 0 != cstrpbrk_#t~mem208; 189#L372-1 assume cstrpbrk_#t~short210;call cstrpbrk_#t~mem209 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1);cstrpbrk_#t~short210 := cstrpbrk_#t~mem209 != (if cstrpbrk_~c~0 % 256 <= 127 then cstrpbrk_~c~0 % 256 else cstrpbrk_~c~0 % 256 - 256); 190#L372-3 assume !!cstrpbrk_#t~short210;havoc cstrpbrk_#t~mem209;havoc cstrpbrk_#t~short210;havoc cstrpbrk_#t~mem208;cstrpbrk_#t~post211.base, cstrpbrk_#t~post211.offset := cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset;cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset := cstrpbrk_#t~post211.base, cstrpbrk_#t~post211.offset - 1;havoc cstrpbrk_#t~post211.base, cstrpbrk_#t~post211.offset; 194#L372-5 [2019-11-28 20:36:41,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:41,594 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935595, now seen corresponding path program 1 times [2019-11-28 20:36:41,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:36:41,595 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945517941] [2019-11-28 20:36:41,595 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:36:41,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:41,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:41,637 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:36:41,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:41,638 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 1 times [2019-11-28 20:36:41,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:36:41,638 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460590675] [2019-11-28 20:36:41,639 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:36:41,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:41,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:41,652 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:36:41,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:41,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1593218778, now seen corresponding path program 1 times [2019-11-28 20:36:41,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:36:41,653 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57965518] [2019-11-28 20:36:41,653 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:36:41,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:41,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:41,751 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:36:42,298 WARN L192 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 103 [2019-11-28 20:36:42,449 WARN L192 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-11-28 20:36:42,451 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:36:42,452 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:36:42,452 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:36:42,452 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:36:42,452 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 20:36:42,452 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:42,452 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:36:42,452 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:36:42,452 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrpbrk_mixed_alloca.i_Iteration3_Lasso [2019-11-28 20:36:42,453 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:36:42,453 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:36:42,458 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 20:36:42,464 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 20:36:42,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:42,471 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 20:36:42,473 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 20:36:42,476 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 20:36:42,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:42,479 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 20:36:42,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:42,484 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 20:36:42,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:42,488 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 20:36:42,490 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 20:36:42,492 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 20:36:42,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:42,496 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 20:36:42,498 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 20:36:42,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:42,504 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 20:36:42,873 WARN L192 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 82 [2019-11-28 20:36:43,017 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-11-28 20:36:43,020 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 20:36:43,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Exception during sending of exit command (exit): Broken pipe [2019-11-28 20:36:43,302 WARN L192 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2019-11-28 20:36:43,821 WARN L192 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2019-11-28 20:36:43,910 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:36:43,910 INFO L489 LassoAnalysis]: Using template 'affine'. 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 20:36:43,921 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 20:36:43,923 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:43,923 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:43,924 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:43,924 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:43,924 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:43,925 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:43,925 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 20:36:43,926 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 20:36:43,936 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:43,939 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:43,939 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:43,939 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:43,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:43,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:43,940 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:43,941 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:43,942 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) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:43,949 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 20:36:43,950 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:43,950 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:43,950 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:43,950 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:43,952 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:36:43,952 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:36:43,977 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 20:36:43,985 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 20:36:43,987 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:43,987 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:43,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:43,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:43,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:43,987 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:43,988 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:43,989 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Exception during sending of exit command (exit): Broken pipe No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:43,996 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 20:36:43,998 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:43,998 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:43,998 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:43,998 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:43,999 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:43,999 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:43,999 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:44,001 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:44,005 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 20:36:44,007 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:44,007 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:44,007 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:44,007 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:44,007 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:44,012 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:44,012 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:44,014 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 20:36:44,028 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:44,030 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:44,030 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:44,030 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:44,030 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:44,031 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:44,032 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:44,032 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:44,034 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:44,039 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 20:36:44,041 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:44,041 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:44,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:44,041 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:44,042 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:36:44,042 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:36:44,045 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 20:36:44,052 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 20:36:44,054 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:44,054 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:44,054 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:44,054 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:44,056 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:36:44,056 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:36:44,058 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) [2019-11-28 20:36:44,066 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:44,068 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:44,068 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:44,068 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:44,068 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:44,068 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:44,069 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:44,069 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:44,070 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 20:36:44,080 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:44,081 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:44,081 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:44,081 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:44,081 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:44,082 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:44,082 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:44,082 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:44,084 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 20:36:44,109 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 20:36:44,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:44,111 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:44,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:44,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:44,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:44,111 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:44,111 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:44,113 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 20:36:44,119 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 20:36:44,121 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:44,121 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:44,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:44,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:44,121 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:44,122 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:44,122 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:44,123 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:44,140 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 20:36:44,141 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:44,142 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:44,142 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:44,142 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:44,142 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:44,142 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:44,142 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:44,144 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 20:36:44,154 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 20:36:44,156 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:44,156 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:44,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:44,156 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:44,156 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:44,158 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:44,158 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:44,162 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:44,167 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 20:36:44,168 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:44,168 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:44,168 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:44,169 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:44,169 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:44,169 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:44,169 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:44,170 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:44,176 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 20:36:44,178 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:44,178 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:44,178 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:44,178 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:44,178 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:44,178 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:44,179 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:44,180 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) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:44,184 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 20:36:44,185 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:44,185 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:44,186 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:44,186 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:44,186 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:44,189 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:44,189 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:44,192 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:44,197 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 20:36:44,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:44,199 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:44,199 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:44,199 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:44,200 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:36:44,201 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:36:44,205 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:44,210 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:44,212 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:44,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:44,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:44,212 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:44,213 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:36:44,213 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:36:44,216 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:44,221 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:44,224 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:44,224 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:44,224 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:44,224 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:44,236 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:36:44,237 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:36:44,261 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 20:36:44,333 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2019-11-28 20:36:44,333 INFO L444 ModelExtractionUtils]: 22 out of 52 variables were initially zero. Simplification set additionally 27 variables to zero. 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 20:36:44,342 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:44,347 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-28 20:36:44,347 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 20:36:44,347 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrpbrk_~s~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc216.base)_2) = 2*ULTIMATE.start_cstrpbrk_~s~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc216.base)_2 Supporting invariants [] [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Exception during sending of exit command (exit): Stream closed [2019-11-28 20:36:44,406 INFO L297 tatePredicateManager]: 15 out of 16 supporting invariants were superfluous and have been removed [2019-11-28 20:36:44,409 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-28 20:36:44,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:44,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:36:44,454 INFO L264 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-28 20:36:44,455 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:36:44,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:36:44,479 INFO L264 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-28 20:36:44,480 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:36:44,500 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 20:36:44,500 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-28 20:36:44,500 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 9 Second operand 4 states. [2019-11-28 20:36:44,561 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 43 states and 57 transitions. Complement of second has 6 states. [2019-11-28 20:36:44,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 20:36:44,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-28 20:36:44,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2019-11-28 20:36:44,564 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 3 letters. [2019-11-28 20:36:44,564 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:36:44,564 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 10 letters. Loop has 3 letters. [2019-11-28 20:36:44,564 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:36:44,565 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 6 letters. [2019-11-28 20:36:44,565 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:36:44,565 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 57 transitions. [2019-11-28 20:36:44,568 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 20:36:44,569 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 30 states and 40 transitions. [2019-11-28 20:36:44,570 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2019-11-28 20:36:44,570 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-11-28 20:36:44,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 40 transitions. [2019-11-28 20:36:44,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 20:36:44,570 INFO L688 BuchiCegarLoop]: Abstraction has 30 states and 40 transitions. [2019-11-28 20:36:44,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 40 transitions. [2019-11-28 20:36:44,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2019-11-28 20:36:44,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-28 20:36:44,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 33 transitions. [2019-11-28 20:36:44,576 INFO L711 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2019-11-28 20:36:44,577 INFO L591 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2019-11-28 20:36:44,577 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 20:36:44,577 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 33 transitions. [2019-11-28 20:36:44,579 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 20:36:44,579 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:36:44,579 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:36:44,580 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:36:44,580 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 20:36:44,580 INFO L794 eck$LassoCheckResult]: Stem: 378#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 371#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217.base, main_#t~ret217.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 372#L382 assume !(main_~length1~0 < 1); 373#L382-2 assume !(main_~length2~0 < 1); 370#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset, 1);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1);cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset, cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrpbrk_#res.base, cstrpbrk_#res.offset;havoc cstrpbrk_#t~mem207, cstrpbrk_#t~post211.base, cstrpbrk_#t~post211.offset, cstrpbrk_#t~mem208, cstrpbrk_#t~mem209, cstrpbrk_#t~short210, cstrpbrk_#t~mem212, cstrpbrk_#t~post205.base, cstrpbrk_#t~post205.offset, cstrpbrk_#t~mem206, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, cstrpbrk_~c~0;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset;cstrpbrk_~s2.base, cstrpbrk_~s2.offset := cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset;havoc cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset;havoc cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset;havoc cstrpbrk_~c~0;cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset; 366#L369-4 call cstrpbrk_#t~mem206 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1); 367#L369-1 assume !!(0 != cstrpbrk_#t~mem206);havoc cstrpbrk_#t~mem206;cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset;call cstrpbrk_#t~mem207 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem207;havoc cstrpbrk_#t~mem207; 380#L372-5 call cstrpbrk_#t~mem208 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1);cstrpbrk_#t~short210 := 0 != cstrpbrk_#t~mem208; 376#L372-1 assume !cstrpbrk_#t~short210; 377#L372-3 assume !cstrpbrk_#t~short210;havoc cstrpbrk_#t~mem209;havoc cstrpbrk_#t~short210;havoc cstrpbrk_#t~mem208; 362#L372-6 call cstrpbrk_#t~mem212 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1); 363#L374 assume !(cstrpbrk_#t~mem212 != cstrpbrk_~c~0);havoc cstrpbrk_#t~mem212; 364#L369-3 cstrpbrk_#t~post205.base, cstrpbrk_#t~post205.offset := cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset;cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset := cstrpbrk_#t~post205.base, 1 + cstrpbrk_#t~post205.offset;havoc cstrpbrk_#t~post205.base, cstrpbrk_#t~post205.offset; 365#L369-4 call cstrpbrk_#t~mem206 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1); 369#L369-1 assume !!(0 != cstrpbrk_#t~mem206);havoc cstrpbrk_#t~mem206;cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset;call cstrpbrk_#t~mem207 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem207;havoc cstrpbrk_#t~mem207; 379#L372-5 [2019-11-28 20:36:44,581 INFO L796 eck$LassoCheckResult]: Loop: 379#L372-5 call cstrpbrk_#t~mem208 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1);cstrpbrk_#t~short210 := 0 != cstrpbrk_#t~mem208; 374#L372-1 assume cstrpbrk_#t~short210;call cstrpbrk_#t~mem209 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1);cstrpbrk_#t~short210 := cstrpbrk_#t~mem209 != (if cstrpbrk_~c~0 % 256 <= 127 then cstrpbrk_~c~0 % 256 else cstrpbrk_~c~0 % 256 - 256); 375#L372-3 assume !!cstrpbrk_#t~short210;havoc cstrpbrk_#t~mem209;havoc cstrpbrk_#t~short210;havoc cstrpbrk_#t~mem208;cstrpbrk_#t~post211.base, cstrpbrk_#t~post211.offset := cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset;cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset := cstrpbrk_#t~post211.base, cstrpbrk_#t~post211.offset - 1;havoc cstrpbrk_#t~post211.base, cstrpbrk_#t~post211.offset; 379#L372-5 [2019-11-28 20:36:44,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:44,581 INFO L82 PathProgramCache]: Analyzing trace with hash 1587378397, now seen corresponding path program 1 times [2019-11-28 20:36:44,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:36:44,582 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538758096] [2019-11-28 20:36:44,582 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:36:44,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:36:44,675 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:36:44,676 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538758096] [2019-11-28 20:36:44,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:36:44,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-28 20:36:44,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717614365] [2019-11-28 20:36:44,677 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-28 20:36:44,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:44,677 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 2 times [2019-11-28 20:36:44,677 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:36:44,677 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777993744] [2019-11-28 20:36:44,678 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:36:44,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:44,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:44,690 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:36:44,858 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 36 [2019-11-28 20:36:44,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:36:44,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 20:36:44,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-28 20:36:44,861 INFO L87 Difference]: Start difference. First operand 24 states and 33 transitions. cyclomatic complexity: 12 Second operand 7 states. [2019-11-28 20:36:44,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:36:44,968 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2019-11-28 20:36:44,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 20:36:44,969 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 39 transitions. [2019-11-28 20:36:44,971 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 20:36:44,971 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 27 states and 35 transitions. [2019-11-28 20:36:44,972 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2019-11-28 20:36:44,972 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-11-28 20:36:44,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 35 transitions. [2019-11-28 20:36:44,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 20:36:44,972 INFO L688 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2019-11-28 20:36:44,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 35 transitions. [2019-11-28 20:36:44,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2019-11-28 20:36:44,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-28 20:36:44,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 33 transitions. [2019-11-28 20:36:44,976 INFO L711 BuchiCegarLoop]: Abstraction has 25 states and 33 transitions. [2019-11-28 20:36:44,976 INFO L591 BuchiCegarLoop]: Abstraction has 25 states and 33 transitions. [2019-11-28 20:36:44,976 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-28 20:36:44,976 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 33 transitions. [2019-11-28 20:36:44,977 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 20:36:44,977 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:36:44,978 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:36:44,978 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:36:44,978 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 20:36:44,979 INFO L794 eck$LassoCheckResult]: Stem: 446#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 443#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217.base, main_#t~ret217.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 444#L382 assume !(main_~length1~0 < 1); 445#L382-2 assume !(main_~length2~0 < 1); 442#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset, 1);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1);cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset, cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrpbrk_#res.base, cstrpbrk_#res.offset;havoc cstrpbrk_#t~mem207, cstrpbrk_#t~post211.base, cstrpbrk_#t~post211.offset, cstrpbrk_#t~mem208, cstrpbrk_#t~mem209, cstrpbrk_#t~short210, cstrpbrk_#t~mem212, cstrpbrk_#t~post205.base, cstrpbrk_#t~post205.offset, cstrpbrk_#t~mem206, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, cstrpbrk_~c~0;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#in~s1.base, cstrpbrk_#in~s1.offset;cstrpbrk_~s2.base, cstrpbrk_~s2.offset := cstrpbrk_#in~s2.base, cstrpbrk_#in~s2.offset;havoc cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset;havoc cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset;havoc cstrpbrk_~c~0;cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset; 438#L369-4 call cstrpbrk_#t~mem206 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1); 439#L369-1 assume !!(0 != cstrpbrk_#t~mem206);havoc cstrpbrk_#t~mem206;cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset;call cstrpbrk_#t~mem207 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem207;havoc cstrpbrk_#t~mem207; 452#L372-5 call cstrpbrk_#t~mem208 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1);cstrpbrk_#t~short210 := 0 != cstrpbrk_#t~mem208; 456#L372-1 assume cstrpbrk_#t~short210;call cstrpbrk_#t~mem209 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1);cstrpbrk_#t~short210 := cstrpbrk_#t~mem209 != (if cstrpbrk_~c~0 % 256 <= 127 then cstrpbrk_~c~0 % 256 else cstrpbrk_~c~0 % 256 - 256); 455#L372-3 assume !cstrpbrk_#t~short210;havoc cstrpbrk_#t~mem209;havoc cstrpbrk_#t~short210;havoc cstrpbrk_#t~mem208; 434#L372-6 call cstrpbrk_#t~mem212 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1); 435#L374 assume !(cstrpbrk_#t~mem212 != cstrpbrk_~c~0);havoc cstrpbrk_#t~mem212; 436#L369-3 cstrpbrk_#t~post205.base, cstrpbrk_#t~post205.offset := cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset;cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset := cstrpbrk_#t~post205.base, 1 + cstrpbrk_#t~post205.offset;havoc cstrpbrk_#t~post205.base, cstrpbrk_#t~post205.offset; 437#L369-4 call cstrpbrk_#t~mem206 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1); 441#L369-1 assume !!(0 != cstrpbrk_#t~mem206);havoc cstrpbrk_#t~mem206;cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset;call cstrpbrk_#t~mem207 := read~int(cstrpbrk_~sc1~0.base, cstrpbrk_~sc1~0.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem207;havoc cstrpbrk_#t~mem207; 451#L372-5 [2019-11-28 20:36:44,979 INFO L796 eck$LassoCheckResult]: Loop: 451#L372-5 call cstrpbrk_#t~mem208 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1);cstrpbrk_#t~short210 := 0 != cstrpbrk_#t~mem208; 447#L372-1 assume cstrpbrk_#t~short210;call cstrpbrk_#t~mem209 := read~int(cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset, 1);cstrpbrk_#t~short210 := cstrpbrk_#t~mem209 != (if cstrpbrk_~c~0 % 256 <= 127 then cstrpbrk_~c~0 % 256 else cstrpbrk_~c~0 % 256 - 256); 448#L372-3 assume !!cstrpbrk_#t~short210;havoc cstrpbrk_#t~mem209;havoc cstrpbrk_#t~short210;havoc cstrpbrk_#t~mem208;cstrpbrk_#t~post211.base, cstrpbrk_#t~post211.offset := cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset;cstrpbrk_~s~0.base, cstrpbrk_~s~0.offset := cstrpbrk_#t~post211.base, cstrpbrk_#t~post211.offset - 1;havoc cstrpbrk_#t~post211.base, cstrpbrk_#t~post211.offset; 451#L372-5 [2019-11-28 20:36:44,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:44,979 INFO L82 PathProgramCache]: Analyzing trace with hash -187628965, now seen corresponding path program 2 times [2019-11-28 20:36:44,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:36:44,979 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001675283] [2019-11-28 20:36:44,979 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:36:44,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:45,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:45,023 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:36:45,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:45,024 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 3 times [2019-11-28 20:36:45,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:36:45,024 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173161453] [2019-11-28 20:36:45,024 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:36:45,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:45,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:45,035 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:36:45,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:45,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1902015318, now seen corresponding path program 1 times [2019-11-28 20:36:45,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:36:45,036 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766280695] [2019-11-28 20:36:45,036 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:36:45,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:45,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:36:45,080 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:36:45,965 WARN L192 SmtUtils]: Spent 721.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 136 [2019-11-28 20:36:47,106 WARN L192 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 108 DAG size of output: 108 [2019-11-28 20:36:47,109 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:36:47,109 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:36:47,109 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:36:47,109 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:36:47,109 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 20:36:47,109 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:47,110 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:36:47,110 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:36:47,110 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrpbrk_mixed_alloca.i_Iteration5_Lasso [2019-11-28 20:36:47,110 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:36:47,110 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:36:47,116 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 20:36:47,132 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 20:36:47,136 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 20:36:47,137 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 20:36:47,140 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 20:36:47,142 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 20:36:47,144 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 20:36:47,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:47,146 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 20:36:47,148 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 20:36:47,150 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 20:36:47,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:47,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:47,156 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 20:36:47,374 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-28 20:36:48,196 WARN L192 SmtUtils]: Spent 813.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 95 [2019-11-28 20:36:48,352 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2019-11-28 20:36:48,353 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 20:36:48,355 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 20:36:48,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:36:48,359 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 20:36:48,360 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 20:36:48,362 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 20:36:48,755 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2019-11-28 20:36:49,425 WARN L192 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 38 [2019-11-28 20:36:49,642 WARN L192 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2019-11-28 20:36:49,654 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:36:49,654 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:49,661 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 20:36:49,663 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:49,663 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:49,663 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:49,663 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:49,663 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:49,664 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:49,664 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:49,665 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 20:36:49,670 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 20:36:49,672 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:49,672 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:49,672 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:49,673 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:49,673 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:49,673 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:49,673 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:49,679 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:36:49,692 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 20:36:49,693 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:49,694 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:49,694 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:49,694 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:49,694 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:49,695 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:49,695 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:49,696 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:49,701 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 20:36:49,702 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:49,702 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:49,702 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:49,702 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:49,702 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:49,703 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:49,703 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:49,704 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:49,709 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 20:36:49,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:49,710 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:49,710 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:49,710 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:49,710 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:49,711 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:49,711 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:49,713 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:49,719 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 20:36:49,720 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:49,720 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:49,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:49,720 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:49,721 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:36:49,721 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:36:49,724 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:49,730 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 20:36:49,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:49,732 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:49,732 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:49,732 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:49,732 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:49,732 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:49,732 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:49,734 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:49,740 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 20:36:49,742 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:49,742 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:49,742 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:49,742 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:49,742 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:49,742 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:49,742 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:49,744 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:36:49,749 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:49,751 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:49,751 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:49,751 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:49,751 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:49,752 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:49,752 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:49,752 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:49,756 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:49,768 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 20:36:49,769 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:49,769 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:49,769 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:49,769 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:49,770 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:36:49,770 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:36:49,774 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:49,779 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 20:36:49,780 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:49,780 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:49,780 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:49,781 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:49,781 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:49,781 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:49,782 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:49,790 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:36:49,798 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 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:49,800 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:49,800 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:49,800 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:49,800 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:49,801 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:49,801 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:49,801 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:49,802 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:49,808 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 20:36:49,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:49,810 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:36:49,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:49,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:49,810 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:49,811 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:36:49,811 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:36:49,817 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:49,824 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 20:36:49,825 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:49,826 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:49,826 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:49,826 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:49,827 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:36:49,827 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:36:49,834 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:49,839 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:36:49,841 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:36:49,841 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:36:49,842 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:36:49,842 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:36:49,851 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:36:49,851 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:36:49,870 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 20:36:49,934 INFO L443 ModelExtractionUtils]: Simplification made 29 calls to the SMT solver. [2019-11-28 20:36:49,934 INFO L444 ModelExtractionUtils]: 9 out of 49 variables were initially zero. Simplification set additionally 37 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:36:49,938 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 20:36:49,940 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-28 20:36:49,941 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 20:36:49,941 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc216.base)_3, ULTIMATE.start_cstrpbrk_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc216.base)_3 + 2*ULTIMATE.start_cstrpbrk_~s~0.offset Supporting invariants [] [2019-11-28 20:36:50,057 INFO L297 tatePredicateManager]: 23 out of 24 supporting invariants were superfluous and have been removed [2019-11-28 20:36:50,060 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-28 20:36:50,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:50,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:36:50,109 INFO L264 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-28 20:36:50,110 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:36:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:36:50,131 INFO L264 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-28 20:36:50,132 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:36:50,147 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 20:36:50,148 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-28 20:36:50,148 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11 Second operand 4 states. [2019-11-28 20:36:50,199 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 41 states and 51 transitions. Complement of second has 6 states. [2019-11-28 20:36:50,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 20:36:50,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-28 20:36:50,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2019-11-28 20:36:50,202 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 15 letters. Loop has 3 letters. [2019-11-28 20:36:50,202 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:36:50,202 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-28 20:36:50,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:50,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:36:50,243 INFO L264 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-28 20:36:50,244 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:36:50,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:36:50,264 INFO L264 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-28 20:36:50,265 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:36:50,280 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 20:36:50,281 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-28 20:36:50,281 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11 Second operand 4 states. [2019-11-28 20:36:50,335 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 41 states and 51 transitions. Complement of second has 6 states. [2019-11-28 20:36:50,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 20:36:50,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-28 20:36:50,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2019-11-28 20:36:50,336 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 15 letters. Loop has 3 letters. [2019-11-28 20:36:50,337 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:36:50,337 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-28 20:36:50,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:36:50,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:36:50,383 INFO L264 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-28 20:36:50,384 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:36:50,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:36:50,403 INFO L264 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-28 20:36:50,404 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:36:50,420 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 20:36:50,421 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-28 20:36:50,421 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11 Second operand 4 states. [2019-11-28 20:36:50,473 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 41 states and 53 transitions. Complement of second has 5 states. [2019-11-28 20:36:50,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 20:36:50,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-28 20:36:50,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2019-11-28 20:36:50,474 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 15 letters. Loop has 3 letters. [2019-11-28 20:36:50,474 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:36:50,474 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 18 letters. Loop has 3 letters. [2019-11-28 20:36:50,475 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:36:50,475 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 15 letters. Loop has 6 letters. [2019-11-28 20:36:50,476 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:36:50,476 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 53 transitions. [2019-11-28 20:36:50,479 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 20:36:50,479 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 0 states and 0 transitions. [2019-11-28 20:36:50,479 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-28 20:36:50,479 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-28 20:36:50,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-28 20:36:50,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 20:36:50,480 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:36:50,480 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:36:50,480 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:36:50,480 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-28 20:36:50,480 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-28 20:36:50,481 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 20:36:50,481 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-28 20:36:50,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 08:36:50 BoogieIcfgContainer [2019-11-28 20:36:50,487 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 20:36:50,488 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:36:50,488 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:36:50,488 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:36:50,489 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:36:37" (3/4) ... [2019-11-28 20:36:50,492 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 20:36:50,493 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:36:50,495 INFO L168 Benchmark]: Toolchain (without parser) took 13949.03 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 380.6 MB). Free memory was 952.3 MB in the beginning and 1.0 GB in the end (delta: -85.0 MB). Peak memory consumption was 295.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:36:50,495 INFO L168 Benchmark]: CDTParser took 0.20 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 20:36:50,496 INFO L168 Benchmark]: CACSL2BoogieTranslator took 634.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -178.6 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2019-11-28 20:36:50,497 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:36:50,497 INFO L168 Benchmark]: Boogie Preprocessor took 58.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:36:50,498 INFO L168 Benchmark]: RCFGBuilder took 412.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2019-11-28 20:36:50,499 INFO L168 Benchmark]: BuchiAutomizer took 12765.94 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 230.2 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 64.1 MB). Peak memory consumption was 294.3 MB. Max. memory is 11.5 GB. [2019-11-28 20:36:50,499 INFO L168 Benchmark]: Witness Printer took 4.93 ms. Allocated memory is still 1.4 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:36:50,502 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 634.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -178.6 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 64.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 58.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 412.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 12765.94 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 230.2 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 64.1 MB). Peak memory consumption was 294.3 MB. Max. memory is 11.5 GB. * Witness Printer took 4.93 ms. Allocated memory is still 1.4 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * sc1 + length1 and consists of 3 locations. One deterministic module has affine ranking function 2 * s + unknown-#length-unknown[__builtin_alloca(length2 * sizeof(char))] and consists of 4 locations. One nondeterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca(length2 * sizeof(char))] + 2 * s and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 12.7s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 11.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 25 states and ocurred in iteration 4. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 105 SDtfs, 122 SDslu, 72 SDs, 0 SdLazy, 103 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital378 mio100 ax100 hnf99 lsp91 ukn74 mio100 lsp39 div114 bol100 ite100 ukn100 eq176 hnf83 smp90 dnf585 smp27 tf100 neg96 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 27ms 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...