./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-memsafety/openbsd_cstrpbrk-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f6fb2bb1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/array-memsafety/openbsd_cstrpbrk-alloca-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b05f810cf5c3fdbb476cd22f2154f4cd5a41b63d 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Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-f6fb2bb [2019-11-19 20:08:20,894 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 20:08:20,897 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 20:08:20,915 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 20:08:20,915 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 20:08:20,916 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 20:08:20,918 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 20:08:20,920 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 20:08:20,922 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 20:08:20,923 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 20:08:20,924 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 20:08:20,926 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 20:08:20,926 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 20:08:20,927 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 20:08:20,928 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 20:08:20,930 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 20:08:20,930 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 20:08:20,932 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 20:08:20,933 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 20:08:20,935 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 20:08:20,937 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 20:08:20,938 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 20:08:20,939 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 20:08:20,940 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 20:08:20,943 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 20:08:20,943 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 20:08:20,944 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 20:08:20,948 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 20:08:20,948 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 20:08:20,949 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 20:08:20,950 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 20:08:20,951 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 20:08:20,951 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 20:08:20,954 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 20:08:20,955 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 20:08:20,958 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 20:08:20,960 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 20:08:20,960 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 20:08:20,960 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 20:08:20,961 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 20:08:20,965 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 20:08:20,966 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-19 20:08:20,984 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 20:08:20,985 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 20:08:20,986 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 20:08:20,986 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 20:08:20,987 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 20:08:20,987 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 20:08:20,987 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 20:08:20,987 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 20:08:20,988 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 20:08:20,988 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 20:08:20,988 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 20:08:20,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 20:08:20,989 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 20:08:20,989 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 20:08:20,989 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 20:08:20,990 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 20:08:20,990 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 20:08:20,990 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 20:08:20,990 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 20:08:20,991 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 20:08:20,991 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 20:08:20,991 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 20:08:20,991 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 20:08:20,992 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 20:08:20,992 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 20:08:20,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 20:08:20,993 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 20:08:20,993 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 20:08:20,993 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 20:08:20,993 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 20:08:20,994 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 20:08:20,995 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 20:08:20,995 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b05f810cf5c3fdbb476cd22f2154f4cd5a41b63d [2019-11-19 20:08:21,288 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 20:08:21,305 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 20:08:21,311 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 20:08:21,314 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 20:08:21,315 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 20:08:21,316 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/openbsd_cstrpbrk-alloca-2.i [2019-11-19 20:08:21,386 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ecc43f83/8d20578c83214e02baf4596bffaec953/FLAGba71fedc3 [2019-11-19 20:08:21,904 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 20:08:21,906 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/openbsd_cstrpbrk-alloca-2.i [2019-11-19 20:08:21,922 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ecc43f83/8d20578c83214e02baf4596bffaec953/FLAGba71fedc3 [2019-11-19 20:08:22,216 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ecc43f83/8d20578c83214e02baf4596bffaec953 [2019-11-19 20:08:22,219 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 20:08:22,221 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 20:08:22,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 20:08:22,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 20:08:22,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 20:08:22,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:08:22" (1/1) ... [2019-11-19 20:08:22,229 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67680f93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:22, skipping insertion in model container [2019-11-19 20:08:22,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:08:22" (1/1) ... [2019-11-19 20:08:22,237 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 20:08:22,283 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 20:08:22,720 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 20:08:22,734 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 20:08:22,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 20:08:22,832 INFO L192 MainTranslator]: Completed translation [2019-11-19 20:08:22,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:22 WrapperNode [2019-11-19 20:08:22,833 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 20:08:22,834 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 20:08:22,835 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 20:08:22,835 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 20:08:22,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:22" (1/1) ... [2019-11-19 20:08:22,860 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:22" (1/1) ... [2019-11-19 20:08:22,884 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 20:08:22,885 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 20:08:22,885 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 20:08:22,885 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 20:08:22,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:22" (1/1) ... [2019-11-19 20:08:22,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:22" (1/1) ... [2019-11-19 20:08:22,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:22" (1/1) ... [2019-11-19 20:08:22,897 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:22" (1/1) ... [2019-11-19 20:08:22,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:22" (1/1) ... [2019-11-19 20:08:22,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:22" (1/1) ... [2019-11-19 20:08:22,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:22" (1/1) ... [2019-11-19 20:08:22,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 20:08:22,916 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 20:08:22,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 20:08:22,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 20:08:22,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:22" (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 [2019-11-19 20:08:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-19 20:08:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 20:08:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 20:08:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 20:08:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 20:08:22,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 20:08:23,345 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 20:08:23,346 INFO L285 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-19 20:08:23,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:08:23 BoogieIcfgContainer [2019-11-19 20:08:23,347 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 20:08:23,347 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 20:08:23,348 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 20:08:23,351 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 20:08:23,352 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:08:23,352 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 08:08:22" (1/3) ... [2019-11-19 20:08:23,353 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2fdfc73a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:08:23, skipping insertion in model container [2019-11-19 20:08:23,353 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:08:23,353 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:08:22" (2/3) ... [2019-11-19 20:08:23,353 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2fdfc73a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:08:23, skipping insertion in model container [2019-11-19 20:08:23,353 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:08:23,354 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:08:23" (3/3) ... [2019-11-19 20:08:23,355 INFO L371 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrpbrk-alloca-2.i [2019-11-19 20:08:23,401 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 20:08:23,401 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 20:08:23,401 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 20:08:23,401 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 20:08:23,402 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 20:08:23,402 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 20:08:23,402 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 20:08:23,402 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 20:08:23,417 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2019-11-19 20:08:23,439 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2019-11-19 20:08:23,439 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:08:23,440 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:08:23,446 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-19 20:08:23,446 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-19 20:08:23,446 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 20:08:23,446 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2019-11-19 20:08:23,449 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2019-11-19 20:08:23,449 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:08:23,449 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:08:23,449 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-19 20:08:23,449 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-19 20:08:23,457 INFO L794 eck$LassoCheckResult]: Stem: 13#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 12#L-1true havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~0, main_#t~nondet13, main_#t~post12, main_~i~1, main_#t~ret14.base, main_#t~ret14.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 19#L528true assume !(main_~length1~0 < 1); 5#L528-2true assume !(main_~length2~0 < 1); 15#L531-1true call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~0 := 0; 9#L537-3true [2019-11-19 20:08:23,457 INFO L796 eck$LassoCheckResult]: Loop: 9#L537-3true assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet11, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet11; 8#L537-2true main_#t~post10 := main_~i~0;main_~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 9#L537-3true [2019-11-19 20:08:23,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:23,462 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2019-11-19 20:08:23,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:23,470 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466489457] [2019-11-19 20:08:23,470 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:23,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:23,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:23,613 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:23,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:23,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2019-11-19 20:08:23,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:23,615 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919125891] [2019-11-19 20:08:23,615 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:23,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:23,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:23,639 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:23,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:23,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2019-11-19 20:08:23,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:23,645 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073133535] [2019-11-19 20:08:23,645 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:23,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:23,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:23,740 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:24,007 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 20:08:24,009 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 20:08:24,009 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 20:08:24,009 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 20:08:24,010 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 20:08:24,010 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:24,010 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 20:08:24,010 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 20:08:24,011 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrpbrk-alloca-2.i_Iteration1_Lasso [2019-11-19 20:08:24,011 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 20:08:24,011 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 20:08:24,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:24,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:24,071 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:24,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:24,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:24,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:24,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:24,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:24,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:24,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:24,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:24,276 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2019-11-19 20:08:24,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:24,306 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:24,311 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:24,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:24,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:24,700 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 25 [2019-11-19 20:08:24,807 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 20:08:24,816 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) [2019-11-19 20:08:24,832 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:08:24,835 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:24,836 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:24,836 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:24,836 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:24,843 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:24,843 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:24,850 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:24,868 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 [2019-11-19 20:08:24,871 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:24,871 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:24,871 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:24,872 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:24,872 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:24,873 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:24,873 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:24,878 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) [2019-11-19 20:08:24,891 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 [2019-11-19 20:08:24,893 INFO L338 nArgumentSynthesizer]: Template has degree 0. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:24,893 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:24,894 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:24,894 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:24,894 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:24,897 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:24,897 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:24,899 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:24,913 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 [2019-11-19 20:08:24,915 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:24,915 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:24,916 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:24,916 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:24,916 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:24,919 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:24,919 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:24,921 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:24,942 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 [2019-11-19 20:08:24,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:24,943 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:24,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:24,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:24,944 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:24,945 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:24,945 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:24,947 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:24,962 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:24,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:24,965 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:24,965 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:24,965 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:24,965 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:24,968 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:24,968 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:24,970 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:24,984 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 [2019-11-19 20:08:24,986 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:24,986 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:24,986 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:24,986 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:24,995 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:24,996 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:25,001 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:25,018 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:25,021 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:25,021 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:25,021 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:25,021 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:25,027 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:25,030 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:08:25,034 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:25,052 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 [2019-11-19 20:08:25,054 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:25,055 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:25,055 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:25,055 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:25,055 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:25,056 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:25,056 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 [2019-11-19 20:08:25,058 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:25,074 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:08:25,076 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:25,076 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:25,076 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:25,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:25,083 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:25,083 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:25,091 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:25,103 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 [2019-11-19 20:08:25,106 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:25,106 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:25,106 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:25,106 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:25,107 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:25,107 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:25,107 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:25,111 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:25,125 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:08:25,127 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:25,127 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2019-11-19 20:08:25,127 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:25,127 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:25,143 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-19 20:08:25,143 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:25,157 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:25,173 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:08:25,175 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:25,176 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:25,176 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:25,176 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:25,180 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:25,181 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:08:25,186 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:25,206 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:08:25,208 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:25,208 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:25,209 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:25,209 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:25,209 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:25,210 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:25,210 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:25,213 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:25,222 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 [2019-11-19 20:08:25,224 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:25,224 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:25,224 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:25,225 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:25,228 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:25,229 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:08:25,234 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:25,251 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:08:25,253 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:25,254 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:25,254 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:25,254 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:25,257 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:25,257 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:25,262 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 [2019-11-19 20:08:25,275 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 [2019-11-19 20:08:25,277 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:25,277 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:25,278 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:25,278 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:25,292 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:25,292 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:08:25,305 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 20:08:25,386 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2019-11-19 20:08:25,386 INFO L444 ModelExtractionUtils]: 4 out of 22 variables were initially zero. Simplification set additionally 15 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:25,453 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:25,472 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-19 20:08:25,473 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 20:08:25,473 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~length1~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-11-19 20:08:25,511 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2019-11-19 20:08:25,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:25,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:08:25,600 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 20:08:25,601 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:08:25,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:08:25,620 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 20:08:25,621 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:08:25,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:08:25,653 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 [2019-11-19 20:08:25,655 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states. Second operand 3 states. [2019-11-19 20:08:25,744 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states.. Second operand 3 states. Result 51 states and 75 transitions. Complement of second has 7 states. [2019-11-19 20:08:25,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-19 20:08:25,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-19 20:08:25,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 51 transitions. [2019-11-19 20:08:25,752 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 51 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-19 20:08:25,757 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:08:25,758 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 51 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-19 20:08:25,758 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:08:25,758 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 51 transitions. Stem has 5 letters. Loop has 4 letters. [2019-11-19 20:08:25,759 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:08:25,760 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 75 transitions. [2019-11-19 20:08:25,770 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2019-11-19 20:08:25,776 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 17 states and 23 transitions. [2019-11-19 20:08:25,777 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2019-11-19 20:08:25,778 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2019-11-19 20:08:25,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 23 transitions. [2019-11-19 20:08:25,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 20:08:25,779 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2019-11-19 20:08:25,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 23 transitions. [2019-11-19 20:08:25,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-11-19 20:08:25,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-19 20:08:25,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 23 transitions. [2019-11-19 20:08:25,813 INFO L711 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2019-11-19 20:08:25,813 INFO L591 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2019-11-19 20:08:25,813 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-19 20:08:25,814 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 23 transitions. [2019-11-19 20:08:25,817 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2019-11-19 20:08:25,818 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:08:25,818 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:08:25,819 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:08:25,819 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-19 20:08:25,819 INFO L794 eck$LassoCheckResult]: Stem: 158#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 156#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~0, main_#t~nondet13, main_#t~post12, main_~i~1, main_#t~ret14.base, main_#t~ret14.offset, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 157#L528 assume !(main_~length1~0 < 1); 148#L528-2 assume !(main_~length2~0 < 1); 149#L531-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~0 := 0; 153#L537-3 assume !(main_~i~0 < main_~length1~0); 154#L537-4 main_~i~1 := 0; 155#L541-3 [2019-11-19 20:08:25,820 INFO L796 eck$LassoCheckResult]: Loop: 155#L541-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet13, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet13; 160#L541-2 main_#t~post12 := main_~i~1;main_~i~1 := 1 + main_#t~post12;havoc main_#t~post12; 155#L541-3 [2019-11-19 20:08:25,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:25,820 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935662, now seen corresponding path program 1 times [2019-11-19 20:08:25,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:25,821 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799305407] [2019-11-19 20:08:25,821 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:25,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:08:25,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:08:25,908 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799305407] [2019-11-19 20:08:25,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 20:08:25,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 20:08:25,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165322592] [2019-11-19 20:08:25,912 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-19 20:08:25,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:25,913 INFO L82 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 1 times [2019-11-19 20:08:25,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:25,913 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444643095] [2019-11-19 20:08:25,913 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:25,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:25,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:25,925 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:25,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:08:25,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 20:08:25,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-19 20:08:25,964 INFO L87 Difference]: Start difference. First operand 17 states and 23 transitions. cyclomatic complexity: 9 Second operand 4 states. [2019-11-19 20:08:25,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:08:25,994 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2019-11-19 20:08:25,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 20:08:25,996 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2019-11-19 20:08:25,997 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2019-11-19 20:08:25,997 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 23 transitions. [2019-11-19 20:08:25,997 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2019-11-19 20:08:25,998 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2019-11-19 20:08:25,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2019-11-19 20:08:25,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 20:08:25,998 INFO L688 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-11-19 20:08:25,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2019-11-19 20:08:26,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2019-11-19 20:08:26,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-19 20:08:26,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2019-11-19 20:08:26,000 INFO L711 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2019-11-19 20:08:26,000 INFO L591 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2019-11-19 20:08:26,001 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-19 20:08:26,001 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 22 transitions. [2019-11-19 20:08:26,001 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2019-11-19 20:08:26,001 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:08:26,002 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:08:26,002 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:08:26,002 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-19 20:08:26,002 INFO L794 eck$LassoCheckResult]: Stem: 200#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 198#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~0, main_#t~nondet13, main_#t~post12, main_~i~1, main_#t~ret14.base, main_#t~ret14.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~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 199#L528 assume !(main_~length1~0 < 1); 190#L528-2 assume !(main_~length2~0 < 1); 191#L531-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~0 := 0; 195#L537-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet11, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet11; 193#L537-2 main_#t~post10 := main_~i~0;main_~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 194#L537-3 assume !(main_~i~0 < main_~length1~0); 196#L537-4 main_~i~1 := 0; 197#L541-3 [2019-11-19 20:08:26,003 INFO L796 eck$LassoCheckResult]: Loop: 197#L541-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet13, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet13; 202#L541-2 main_#t~post12 := main_~i~1;main_~i~1 := 1 + main_#t~post12;havoc main_#t~post12; 197#L541-3 [2019-11-19 20:08:26,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:26,003 INFO L82 PathProgramCache]: Analyzing trace with hash 1298440016, now seen corresponding path program 1 times [2019-11-19 20:08:26,003 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:26,003 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707735774] [2019-11-19 20:08:26,003 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:26,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:26,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:26,035 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:26,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:26,036 INFO L82 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 2 times [2019-11-19 20:08:26,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:26,037 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076833369] [2019-11-19 20:08:26,037 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:26,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:26,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:26,054 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:26,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:26,057 INFO L82 PathProgramCache]: Analyzing trace with hash -2034626574, now seen corresponding path program 1 times [2019-11-19 20:08:26,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:26,057 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324000112] [2019-11-19 20:08:26,058 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:26,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:26,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:26,140 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:26,383 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2019-11-19 20:08:26,474 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 20:08:26,475 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 20:08:26,475 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 20:08:26,475 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 20:08:26,475 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 20:08:26,475 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:26,475 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 20:08:26,475 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 20:08:26,476 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrpbrk-alloca-2.i_Iteration3_Lasso [2019-11-19 20:08:26,476 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 20:08:26,476 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 20:08:26,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,501 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,514 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:26,687 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2019-11-19 20:08:26,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:27,093 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 25 [2019-11-19 20:08:27,159 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 20:08:27,159 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:27,173 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:08:27,175 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:27,175 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:27,175 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:27,175 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:27,176 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:27,177 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:27,177 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:27,179 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:27,204 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 [2019-11-19 20:08:27,206 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:27,206 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:27,206 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:27,207 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:27,207 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:27,208 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:27,208 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:27,210 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:27,220 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:08:27,221 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:27,222 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:27,222 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:27,222 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:27,222 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:27,223 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:27,223 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:27,225 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:27,236 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:08:27,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:27,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:27,239 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:27,240 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:27,245 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:27,245 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:08:27,251 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:27,263 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 [2019-11-19 20:08:27,265 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:27,265 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:27,265 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:27,265 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:27,265 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:27,266 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:27,266 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:27,268 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:27,277 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 [2019-11-19 20:08:27,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:27,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:27,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:27,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:27,282 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:27,282 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:27,287 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:27,298 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 [2019-11-19 20:08:27,299 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:27,299 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:27,300 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:27,300 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:27,300 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:27,301 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:27,301 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:27,310 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:27,318 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 [2019-11-19 20:08:27,320 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:27,320 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:27,320 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:27,320 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:27,323 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:27,323 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:27,327 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:27,336 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 [2019-11-19 20:08:27,337 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:27,338 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:27,338 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:27,338 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:27,338 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:27,339 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:27,339 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:27,341 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:27,348 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:27,351 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:27,351 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:27,351 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:27,351 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:27,352 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:27,352 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:27,352 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:27,354 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:27,362 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:08:27,363 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:27,364 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:27,364 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:27,364 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:27,364 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:27,365 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:27,365 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:27,367 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:27,375 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 [2019-11-19 20:08:27,377 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:27,377 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:27,377 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:27,377 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:27,379 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:27,380 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:27,383 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:27,390 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 [2019-11-19 20:08:27,392 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:27,392 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:27,392 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:27,392 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:27,392 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:27,393 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:27,393 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:27,395 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) [2019-11-19 20:08:27,402 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 [2019-11-19 20:08:27,404 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:27,404 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:27,404 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:27,405 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:27,407 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:27,407 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:27,419 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) [2019-11-19 20:08:27,425 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:08:27,427 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:27,427 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:27,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:27,428 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:27,433 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:27,433 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:27,447 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 20:08:27,484 INFO L443 ModelExtractionUtils]: Simplification made 19 calls to the SMT solver. [2019-11-19 20:08:27,484 INFO L444 ModelExtractionUtils]: 8 out of 22 variables were initially zero. Simplification set additionally 11 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2019-11-19 20:08:27,490 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 20:08:27,493 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-19 20:08:27,494 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 20:08:27,494 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1, ULTIMATE.start_main_~length2~0) = -1*ULTIMATE.start_main_~i~1 + 1*ULTIMATE.start_main_~length2~0 Supporting invariants [] [2019-11-19 20:08:27,514 INFO L297 tatePredicateManager]: 7 out of 7 supporting invariants were superfluous and have been removed [2019-11-19 20:08:27,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:27,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:08:27,543 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 20:08:27,544 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:08:27,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:08:27,550 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 20:08:27,550 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:08:27,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:08:27,562 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 [2019-11-19 20:08:27,562 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-11-19 20:08:27,582 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 25 states and 35 transitions. Complement of second has 6 states. [2019-11-19 20:08:27,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-19 20:08:27,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-19 20:08:27,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2019-11-19 20:08:27,584 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 9 letters. Loop has 2 letters. [2019-11-19 20:08:27,584 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:08:27,584 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 11 letters. Loop has 2 letters. [2019-11-19 20:08:27,585 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:08:27,585 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 9 letters. Loop has 4 letters. [2019-11-19 20:08:27,585 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:08:27,585 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 35 transitions. [2019-11-19 20:08:27,586 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-19 20:08:27,587 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 18 states and 24 transitions. [2019-11-19 20:08:27,587 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2019-11-19 20:08:27,588 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-11-19 20:08:27,588 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 24 transitions. [2019-11-19 20:08:27,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 20:08:27,588 INFO L688 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2019-11-19 20:08:27,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 24 transitions. [2019-11-19 20:08:27,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-19 20:08:27,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-19 20:08:27,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2019-11-19 20:08:27,590 INFO L711 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2019-11-19 20:08:27,590 INFO L591 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2019-11-19 20:08:27,590 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-19 20:08:27,591 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 24 transitions. [2019-11-19 20:08:27,591 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-19 20:08:27,591 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:08:27,591 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:08:27,592 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:08:27,592 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-19 20:08:27,592 INFO L794 eck$LassoCheckResult]: Stem: 326#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 324#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~0, main_#t~nondet13, main_#t~post12, main_~i~1, main_#t~ret14.base, main_#t~ret14.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~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 325#L528 assume !(main_~length1~0 < 1); 316#L528-2 assume !(main_~length2~0 < 1); 317#L531-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~0 := 0; 321#L537-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet11, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet11; 319#L537-2 main_#t~post10 := main_~i~0;main_~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 320#L537-3 assume !(main_~i~0 < main_~length1~0); 322#L537-4 main_~i~1 := 0; 323#L541-3 assume !(main_~i~1 < main_~length2~0); 314#L541-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);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~post4.base, cstrpbrk_#t~post4.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset, cstrpbrk_~c~0, cstrpbrk_~sc~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_~scanp~0.base, cstrpbrk_~scanp~0.offset;havoc cstrpbrk_~c~0;havoc cstrpbrk_~sc~0; 315#L519-4 [2019-11-19 20:08:27,593 INFO L796 eck$LassoCheckResult]: Loop: 315#L519-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 318#L518-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~mem3;havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 312#L519-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 313#L519-1 assume !(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 315#L519-4 [2019-11-19 20:08:27,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:27,593 INFO L82 PathProgramCache]: Analyzing trace with hash -2034626632, now seen corresponding path program 1 times [2019-11-19 20:08:27,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:27,593 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886566809] [2019-11-19 20:08:27,594 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:27,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:08:27,635 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-19 20:08:27,635 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886566809] [2019-11-19 20:08:27,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 20:08:27,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 20:08:27,636 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805266943] [2019-11-19 20:08:27,636 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-19 20:08:27,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:27,636 INFO L82 PathProgramCache]: Analyzing trace with hash 2406249, now seen corresponding path program 1 times [2019-11-19 20:08:27,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:27,637 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786226366] [2019-11-19 20:08:27,637 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:27,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:27,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:27,659 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:27,773 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:08:27,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 20:08:27,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-19 20:08:27,774 INFO L87 Difference]: Start difference. First operand 18 states and 24 transitions. cyclomatic complexity: 9 Second operand 4 states. [2019-11-19 20:08:27,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:08:27,804 INFO L93 Difference]: Finished difference Result 19 states and 24 transitions. [2019-11-19 20:08:27,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 20:08:27,806 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 24 transitions. [2019-11-19 20:08:27,807 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-19 20:08:27,807 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 19 states and 24 transitions. [2019-11-19 20:08:27,807 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2019-11-19 20:08:27,807 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-11-19 20:08:27,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 24 transitions. [2019-11-19 20:08:27,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 20:08:27,808 INFO L688 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2019-11-19 20:08:27,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 24 transitions. [2019-11-19 20:08:27,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2019-11-19 20:08:27,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-19 20:08:27,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2019-11-19 20:08:27,810 INFO L711 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-11-19 20:08:27,810 INFO L591 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-11-19 20:08:27,811 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-19 20:08:27,811 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2019-11-19 20:08:27,811 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-19 20:08:27,811 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:08:27,812 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:08:27,812 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:08:27,812 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-19 20:08:27,813 INFO L794 eck$LassoCheckResult]: Stem: 370#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 368#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~0, main_#t~nondet13, main_#t~post12, main_~i~1, main_#t~ret14.base, main_#t~ret14.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~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 369#L528 assume !(main_~length1~0 < 1); 360#L528-2 assume !(main_~length2~0 < 1); 361#L531-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~0 := 0; 365#L537-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet11, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet11; 363#L537-2 main_#t~post10 := main_~i~0;main_~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 364#L537-3 assume !(main_~i~0 < main_~length1~0); 366#L537-4 main_~i~1 := 0; 367#L541-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet13, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet13; 372#L541-2 main_#t~post12 := main_~i~1;main_~i~1 := 1 + main_#t~post12;havoc main_#t~post12; 373#L541-3 assume !(main_~i~1 < main_~length2~0); 358#L541-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);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~post4.base, cstrpbrk_#t~post4.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset, cstrpbrk_~c~0, cstrpbrk_~sc~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_~scanp~0.base, cstrpbrk_~scanp~0.offset;havoc cstrpbrk_~c~0;havoc cstrpbrk_~sc~0; 359#L519-4 [2019-11-19 20:08:27,813 INFO L796 eck$LassoCheckResult]: Loop: 359#L519-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 362#L518-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~mem3;havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 356#L519-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 357#L519-1 assume !(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 359#L519-4 [2019-11-19 20:08:27,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:27,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1066016806, now seen corresponding path program 1 times [2019-11-19 20:08:27,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:27,814 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641264734] [2019-11-19 20:08:27,814 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:27,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:27,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:27,860 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:27,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:27,861 INFO L82 PathProgramCache]: Analyzing trace with hash 2406249, now seen corresponding path program 2 times [2019-11-19 20:08:27,861 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:27,862 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731852323] [2019-11-19 20:08:27,862 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:27,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:27,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:27,874 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:27,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:27,875 INFO L82 PathProgramCache]: Analyzing trace with hash -796589374, now seen corresponding path program 1 times [2019-11-19 20:08:27,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:27,876 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31203585] [2019-11-19 20:08:27,876 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:27,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:08:28,096 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-19 20:08:28,096 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31203585] [2019-11-19 20:08:28,096 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963222395] [2019-11-19 20:08:28,097 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 20:08:28,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:08:28,160 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 52 conjunts are in the unsatisfiable core [2019-11-19 20:08:28,162 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:08:28,335 INFO L343 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2019-11-19 20:08:28,336 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 19 [2019-11-19 20:08:28,336 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 20:08:28,350 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 20:08:28,352 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-19 20:08:28,352 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:46, output treesize:31 [2019-11-19 20:08:28,427 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-19 20:08:28,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-19 20:08:28,428 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2019-11-19 20:08:28,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390001825] [2019-11-19 20:08:28,525 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:08:28,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-19 20:08:28,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-11-19 20:08:28,526 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. cyclomatic complexity: 8 Second operand 13 states. [2019-11-19 20:08:28,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:08:28,838 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2019-11-19 20:08:28,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-19 20:08:28,839 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 34 transitions. [2019-11-19 20:08:28,840 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-19 20:08:28,841 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 21 states and 26 transitions. [2019-11-19 20:08:28,841 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2019-11-19 20:08:28,841 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-11-19 20:08:28,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 26 transitions. [2019-11-19 20:08:28,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 20:08:28,842 INFO L688 BuchiCegarLoop]: Abstraction has 21 states and 26 transitions. [2019-11-19 20:08:28,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 26 transitions. [2019-11-19 20:08:28,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2019-11-19 20:08:28,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-19 20:08:28,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2019-11-19 20:08:28,844 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2019-11-19 20:08:28,844 INFO L591 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2019-11-19 20:08:28,844 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-19 20:08:28,845 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 25 transitions. [2019-11-19 20:08:28,845 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-19 20:08:28,845 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:08:28,845 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:08:28,846 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:08:28,846 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-19 20:08:28,846 INFO L794 eck$LassoCheckResult]: Stem: 493#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 491#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~0, main_#t~nondet13, main_#t~post12, main_~i~1, main_#t~ret14.base, main_#t~ret14.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~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 492#L528 assume !(main_~length1~0 < 1); 482#L528-2 assume !(main_~length2~0 < 1); 483#L531-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~0 := 0; 487#L537-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet11, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet11; 485#L537-2 main_#t~post10 := main_~i~0;main_~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 486#L537-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet11, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet11; 488#L537-2 main_#t~post10 := main_~i~0;main_~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 497#L537-3 assume !(main_~i~0 < main_~length1~0); 489#L537-4 main_~i~1 := 0; 490#L541-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet13, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet13; 495#L541-2 main_#t~post12 := main_~i~1;main_~i~1 := 1 + main_#t~post12;havoc main_#t~post12; 496#L541-3 assume !(main_~i~1 < main_~length2~0); 480#L541-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);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~post4.base, cstrpbrk_#t~post4.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset, cstrpbrk_~c~0, cstrpbrk_~sc~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_~scanp~0.base, cstrpbrk_~scanp~0.offset;havoc cstrpbrk_~c~0;havoc cstrpbrk_~sc~0; 481#L519-4 [2019-11-19 20:08:28,846 INFO L796 eck$LassoCheckResult]: Loop: 481#L519-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 484#L518-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~mem3;havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 478#L519-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 479#L519-1 assume !(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 481#L519-4 [2019-11-19 20:08:28,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:28,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1523394364, now seen corresponding path program 2 times [2019-11-19 20:08:28,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:28,847 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380094492] [2019-11-19 20:08:28,847 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:28,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:28,880 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:28,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:28,881 INFO L82 PathProgramCache]: Analyzing trace with hash 2406249, now seen corresponding path program 3 times [2019-11-19 20:08:28,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:28,881 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843021939] [2019-11-19 20:08:28,881 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:28,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:28,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:28,891 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:28,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:28,892 INFO L82 PathProgramCache]: Analyzing trace with hash 1430636836, now seen corresponding path program 2 times [2019-11-19 20:08:28,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:28,892 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368983742] [2019-11-19 20:08:28,892 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:28,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:28,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:28,933 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:29,702 WARN L191 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 122 [2019-11-19 20:08:29,916 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2019-11-19 20:08:29,927 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 20:08:29,927 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 20:08:29,927 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 20:08:29,927 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 20:08:29,927 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 20:08:29,927 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:29,927 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 20:08:29,928 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 20:08:29,928 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrpbrk-alloca-2.i_Iteration6_Lasso [2019-11-19 20:08:29,928 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 20:08:29,928 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 20:08:29,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:29,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:29,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:29,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:29,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:29,959 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:29,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:29,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:30,403 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2019-11-19 20:08:30,572 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-11-19 20:08:30,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:30,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:30,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:30,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:30,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:30,584 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:30,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:30,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:30,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:30,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:30,597 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:30,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:30,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:30,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:30,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:30,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:31,493 WARN L191 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 37 [2019-11-19 20:08:31,610 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 20:08:31,610 INFO L489 LassoAnalysis]: Using template 'affine'. 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 [2019-11-19 20:08:31,619 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 [2019-11-19 20:08:31,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:31,620 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:31,620 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:31,621 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:31,621 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:31,621 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:31,622 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:31,623 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 [2019-11-19 20:08:31,630 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 [2019-11-19 20:08:31,631 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:31,632 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:31,632 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:31,632 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:31,632 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:31,638 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:31,638 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:31,640 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 [2019-11-19 20:08:31,647 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 [2019-11-19 20:08:31,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:31,648 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:31,648 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:31,648 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:31,648 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:31,649 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:31,649 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:31,650 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:31,657 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 [2019-11-19 20:08:31,658 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:31,658 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:31,658 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:31,658 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:31,658 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:31,659 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:31,659 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:31,660 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 [2019-11-19 20:08:31,667 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 [2019-11-19 20:08:31,668 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:31,668 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:31,668 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:31,669 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:31,671 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:31,671 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:08:31,699 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:31,706 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 [2019-11-19 20:08:31,709 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:31,709 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:31,709 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:31,710 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:31,713 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:31,713 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:31,713 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:31,716 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) [2019-11-19 20:08:31,724 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 [2019-11-19 20:08:31,727 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:31,727 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:31,727 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:31,727 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:31,727 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:31,728 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:31,728 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:31,730 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 [2019-11-19 20:08:31,736 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 [2019-11-19 20:08:31,737 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:31,737 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:31,737 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:31,737 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:31,737 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:31,738 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:31,738 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:31,740 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 [2019-11-19 20:08:31,745 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 [2019-11-19 20:08:31,746 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:31,747 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:31,747 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:31,747 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:31,753 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:31,754 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:08:31,770 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 20:08:31,802 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2019-11-19 20:08:31,802 INFO L444 ModelExtractionUtils]: 17 out of 28 variables were initially zero. Simplification set additionally 8 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:31,810 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:31,814 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-19 20:08:31,814 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 20:08:31,815 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrpbrk_~s1.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_3) = -1*ULTIMATE.start_cstrpbrk_~s1.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_3 Supporting invariants [] [2019-11-19 20:08:31,877 INFO L297 tatePredicateManager]: 12 out of 14 supporting invariants were superfluous and have been removed [2019-11-19 20:08:31,883 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-19 20:08:31,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:31,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:08:31,948 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-19 20:08:31,949 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:08:31,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:08:31,971 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-19 20:08:31,972 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:08:31,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:08:31,992 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 [2019-11-19 20:08:31,992 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 25 transitions. cyclomatic complexity: 8 Second operand 4 states. [2019-11-19 20:08:32,026 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 25 transitions. cyclomatic complexity: 8. Second operand 4 states. Result 26 states and 32 transitions. Complement of second has 5 states. [2019-11-19 20:08:32,027 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 [2019-11-19 20:08:32,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-19 20:08:32,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2019-11-19 20:08:32,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 15 letters. Loop has 4 letters. [2019-11-19 20:08:32,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:08:32,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 19 letters. Loop has 4 letters. [2019-11-19 20:08:32,029 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:08:32,029 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 15 letters. Loop has 8 letters. [2019-11-19 20:08:32,030 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:08:32,030 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 32 transitions. [2019-11-19 20:08:32,032 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 20:08:32,033 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 25 states and 31 transitions. [2019-11-19 20:08:32,033 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2019-11-19 20:08:32,033 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-11-19 20:08:32,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 31 transitions. [2019-11-19 20:08:32,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 20:08:32,034 INFO L688 BuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2019-11-19 20:08:32,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 31 transitions. [2019-11-19 20:08:32,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2019-11-19 20:08:32,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-19 20:08:32,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 30 transitions. [2019-11-19 20:08:32,036 INFO L711 BuchiCegarLoop]: Abstraction has 24 states and 30 transitions. [2019-11-19 20:08:32,036 INFO L591 BuchiCegarLoop]: Abstraction has 24 states and 30 transitions. [2019-11-19 20:08:32,036 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-11-19 20:08:32,036 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 30 transitions. [2019-11-19 20:08:32,037 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 20:08:32,037 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:08:32,037 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:08:32,037 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:08:32,038 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 20:08:32,038 INFO L794 eck$LassoCheckResult]: Stem: 683#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 681#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~0, main_#t~nondet13, main_#t~post12, main_~i~1, main_#t~ret14.base, main_#t~ret14.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~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 682#L528 assume !(main_~length1~0 < 1); 671#L528-2 assume !(main_~length2~0 < 1); 672#L531-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~0 := 0; 677#L537-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet11, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet11; 675#L537-2 main_#t~post10 := main_~i~0;main_~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 676#L537-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet11, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet11; 678#L537-2 main_#t~post10 := main_~i~0;main_~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 688#L537-3 assume !(main_~i~0 < main_~length1~0); 679#L537-4 main_~i~1 := 0; 680#L541-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet13, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet13; 686#L541-2 main_#t~post12 := main_~i~1;main_~i~1 := 1 + main_#t~post12;havoc main_#t~post12; 687#L541-3 assume !(main_~i~1 < main_~length2~0); 669#L541-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);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~post4.base, cstrpbrk_#t~post4.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset, cstrpbrk_~c~0, cstrpbrk_~sc~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_~scanp~0.base, cstrpbrk_~scanp~0.offset;havoc cstrpbrk_~c~0;havoc cstrpbrk_~sc~0; 670#L519-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 673#L518-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~mem3;havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 665#L519-3 [2019-11-19 20:08:32,038 INFO L796 eck$LassoCheckResult]: Loop: 665#L519-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 666#L519-1 assume !!(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 684#L520 assume !(cstrpbrk_~sc~0 == cstrpbrk_~c~0); 665#L519-3 [2019-11-19 20:08:32,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:32,038 INFO L82 PathProgramCache]: Analyzing trace with hash -601862591, now seen corresponding path program 1 times [2019-11-19 20:08:32,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:32,039 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121391699] [2019-11-19 20:08:32,039 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:32,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:32,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:32,113 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:32,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:32,113 INFO L82 PathProgramCache]: Analyzing trace with hash 86557, now seen corresponding path program 1 times [2019-11-19 20:08:32,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:32,114 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751655618] [2019-11-19 20:08:32,114 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:32,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:32,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:32,120 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:32,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:32,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1400069085, now seen corresponding path program 1 times [2019-11-19 20:08:32,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:32,121 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958787296] [2019-11-19 20:08:32,121 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:32,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:08:32,253 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-19 20:08:32,253 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958787296] [2019-11-19 20:08:32,254 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341277746] [2019-11-19 20:08:32,254 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 20:08:32,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:08:32,304 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 25 conjunts are in the unsatisfiable core [2019-11-19 20:08:32,306 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:08:32,385 INFO L343 Elim1Store]: treesize reduction 40, result has 20.0 percent of original size [2019-11-19 20:08:32,386 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 21 [2019-11-19 20:08:32,387 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 20:08:32,399 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 20:08:32,401 INFO L496 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2019-11-19 20:08:32,401 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:49, output treesize:33 [2019-11-19 20:08:32,460 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-19 20:08:32,462 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 20:08:32,463 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 10 [2019-11-19 20:08:32,464 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 20:08:32,474 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 20:08:32,475 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-19 20:08:32,476 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:33, output treesize:3 [2019-11-19 20:08:32,477 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-19 20:08:32,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-19 20:08:32,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2019-11-19 20:08:32,478 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875914546] [2019-11-19 20:08:32,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:08:32,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-19 20:08:32,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2019-11-19 20:08:32,521 INFO L87 Difference]: Start difference. First operand 24 states and 30 transitions. cyclomatic complexity: 10 Second operand 16 states. [2019-11-19 20:08:32,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:08:32,944 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2019-11-19 20:08:32,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-19 20:08:32,945 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 50 transitions. [2019-11-19 20:08:32,946 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 20:08:32,947 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 30 states and 37 transitions. [2019-11-19 20:08:32,947 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2019-11-19 20:08:32,947 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-11-19 20:08:32,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 37 transitions. [2019-11-19 20:08:32,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 20:08:32,948 INFO L688 BuchiCegarLoop]: Abstraction has 30 states and 37 transitions. [2019-11-19 20:08:32,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 37 transitions. [2019-11-19 20:08:32,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2019-11-19 20:08:32,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-19 20:08:32,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2019-11-19 20:08:32,951 INFO L711 BuchiCegarLoop]: Abstraction has 26 states and 32 transitions. [2019-11-19 20:08:32,951 INFO L591 BuchiCegarLoop]: Abstraction has 26 states and 32 transitions. [2019-11-19 20:08:32,951 INFO L424 BuchiCegarLoop]: ======== Iteration 8============ [2019-11-19 20:08:32,951 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 32 transitions. [2019-11-19 20:08:32,952 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 20:08:32,952 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:08:32,952 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:08:32,953 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:08:32,953 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 20:08:32,953 INFO L794 eck$LassoCheckResult]: Stem: 840#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 838#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~0, main_#t~nondet13, main_#t~post12, main_~i~1, main_#t~ret14.base, main_#t~ret14.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~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 839#L528 assume !(main_~length1~0 < 1); 828#L528-2 assume !(main_~length2~0 < 1); 829#L531-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~0 := 0; 834#L537-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet11, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet11; 832#L537-2 main_#t~post10 := main_~i~0;main_~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 833#L537-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet11, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet11; 835#L537-2 main_#t~post10 := main_~i~0;main_~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 847#L537-3 assume !(main_~i~0 < main_~length1~0); 836#L537-4 main_~i~1 := 0; 837#L541-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet13, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet13; 843#L541-2 main_#t~post12 := main_~i~1;main_~i~1 := 1 + main_#t~post12;havoc main_#t~post12; 844#L541-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet13, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet13; 845#L541-2 main_#t~post12 := main_~i~1;main_~i~1 := 1 + main_#t~post12;havoc main_#t~post12; 846#L541-3 assume !(main_~i~1 < main_~length2~0); 826#L541-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);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~post4.base, cstrpbrk_#t~post4.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset, cstrpbrk_~c~0, cstrpbrk_~sc~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_~scanp~0.base, cstrpbrk_~scanp~0.offset;havoc cstrpbrk_~c~0;havoc cstrpbrk_~sc~0; 827#L519-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 830#L518-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~mem3;havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 822#L519-3 [2019-11-19 20:08:32,953 INFO L796 eck$LassoCheckResult]: Loop: 822#L519-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 823#L519-1 assume !!(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 841#L520 assume !(cstrpbrk_~sc~0 == cstrpbrk_~c~0); 822#L519-3 [2019-11-19 20:08:32,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:32,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1483803875, now seen corresponding path program 2 times [2019-11-19 20:08:32,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:32,954 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921024974] [2019-11-19 20:08:32,954 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:32,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:32,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:32,989 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:32,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:32,989 INFO L82 PathProgramCache]: Analyzing trace with hash 86557, now seen corresponding path program 2 times [2019-11-19 20:08:32,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:32,990 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105554012] [2019-11-19 20:08:32,990 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:32,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:32,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:32,995 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:32,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:32,996 INFO L82 PathProgramCache]: Analyzing trace with hash 197886459, now seen corresponding path program 2 times [2019-11-19 20:08:32,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:32,996 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830044774] [2019-11-19 20:08:32,996 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:33,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:33,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:33,034 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:34,386 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 185 DAG size of output: 155 [2019-11-19 20:08:34,699 WARN L191 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2019-11-19 20:08:34,701 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 20:08:34,701 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 20:08:34,701 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 20:08:34,701 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 20:08:34,701 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 20:08:34,702 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:34,702 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 20:08:34,702 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 20:08:34,702 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrpbrk-alloca-2.i_Iteration8_Lasso [2019-11-19 20:08:34,702 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 20:08:34,702 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 20:08:34,707 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:34,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:34,717 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:34,720 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:34,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:34,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:34,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:34,728 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:34,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:34,732 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:34,739 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:34,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:34,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:34,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:34,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:35,176 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 87 [2019-11-19 20:08:35,305 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2019-11-19 20:08:35,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:35,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:35,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:35,311 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:35,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:35,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:35,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:35,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:35,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:35,655 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2019-11-19 20:08:36,206 WARN L191 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 40 [2019-11-19 20:08:36,470 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 20:08:36,470 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:36,479 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 [2019-11-19 20:08:36,480 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:36,480 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:36,480 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:36,480 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:36,480 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:36,481 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:36,481 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:36,482 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:36,490 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 [2019-11-19 20:08:36,492 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:36,492 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:36,493 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:36,493 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:36,493 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:36,495 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:36,495 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:36,496 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:36,502 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 [2019-11-19 20:08:36,503 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:36,503 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:36,503 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:36,503 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:36,504 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:36,504 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:08:36,507 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 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 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:36,513 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:08:36,515 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:36,515 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:36,515 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:36,516 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:36,517 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:36,517 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:08:36,519 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:36,526 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 [2019-11-19 20:08:36,527 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:36,528 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:36,528 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:36,528 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:36,528 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:36,528 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:36,528 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:36,529 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:36,535 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 [2019-11-19 20:08:36,536 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:36,536 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:36,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:36,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:36,537 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:36,537 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:36,537 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:36,538 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:36,546 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 [2019-11-19 20:08:36,547 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:36,547 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:36,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:36,547 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:36,548 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:36,548 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:36,548 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:36,549 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Exception during sending of exit command (exit): Stream closed No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:36,557 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 [2019-11-19 20:08:36,558 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:36,558 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:36,558 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:36,558 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:36,558 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:36,559 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:36,559 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:36,560 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:36,565 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 [2019-11-19 20:08:36,567 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:36,567 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:36,567 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:36,567 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:36,568 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:36,568 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:08:36,571 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:36,577 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 [2019-11-19 20:08:36,578 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:36,578 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:36,578 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:36,578 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:36,578 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:36,579 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:36,579 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:36,580 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:36,589 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 [2019-11-19 20:08:36,590 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:36,590 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:36,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:36,591 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:36,591 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:36,591 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:36,591 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:36,592 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:36,598 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 [2019-11-19 20:08:36,599 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:36,599 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:36,599 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:36,600 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:36,600 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:36,600 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:36,600 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:36,601 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:36,609 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 [2019-11-19 20:08:36,610 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:36,610 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:36,610 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:36,611 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:36,620 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:36,620 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:08:36,624 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:36,636 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 [2019-11-19 20:08:36,637 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:36,637 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:36,638 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:36,638 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:36,638 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:36,638 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:36,638 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:36,640 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:36,646 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 [2019-11-19 20:08:36,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:36,648 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2019-11-19 20:08:36,648 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:36,648 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:36,660 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-19 20:08:36,660 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:08:36,683 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:36,689 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 [2019-11-19 20:08:36,691 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:36,691 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:36,691 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:36,691 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:36,699 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:36,699 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:08:36,722 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 20:08:36,820 INFO L443 ModelExtractionUtils]: Simplification made 24 calls to the SMT solver. [2019-11-19 20:08:36,820 INFO L444 ModelExtractionUtils]: 8 out of 55 variables were initially zero. Simplification set additionally 42 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:36,829 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:36,832 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-19 20:08:36,832 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 20:08:36,833 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_3, ULTIMATE.start_cstrpbrk_~scanp~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_3 - 1*ULTIMATE.start_cstrpbrk_~scanp~0.offset Supporting invariants [1*v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_4 - 1*v_rep(select #length ULTIMATE.start_cstrpbrk_~scanp~0.base)_2 >= 0] [2019-11-19 20:08:36,933 INFO L297 tatePredicateManager]: 18 out of 20 supporting invariants were superfluous and have been removed [2019-11-19 20:08:36,938 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-19 20:08:36,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:37,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:08:37,004 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 22 conjunts are in the unsatisfiable core [2019-11-19 20:08:37,009 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:08:37,029 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 20:08:37,029 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2019-11-19 20:08:37,030 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 20:08:37,058 INFO L567 ElimStorePlain]: treesize reduction 10, result has 71.4 percent of original size [2019-11-19 20:08:37,059 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-19 20:08:37,059 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:20, output treesize:16 [2019-11-19 20:08:37,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:08:37,248 WARN L253 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-19 20:08:37,249 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:08:37,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:08:37,288 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.9 stem predicates 2 loop predicates [2019-11-19 20:08:37,289 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 32 transitions. cyclomatic complexity: 10 Second operand 11 states. [2019-11-19 20:08:37,844 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 32 transitions. cyclomatic complexity: 10. Second operand 11 states. Result 52 states and 63 transitions. Complement of second has 14 states. [2019-11-19 20:08:37,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 9 stem states 1 non-accepting loop states 2 accepting loop states [2019-11-19 20:08:37,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-19 20:08:37,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 36 transitions. [2019-11-19 20:08:37,847 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 36 transitions. Stem has 19 letters. Loop has 3 letters. [2019-11-19 20:08:37,848 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:08:37,848 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 36 transitions. Stem has 22 letters. Loop has 3 letters. [2019-11-19 20:08:37,848 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:08:37,848 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 36 transitions. Stem has 19 letters. Loop has 6 letters. [2019-11-19 20:08:37,849 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:08:37,849 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 63 transitions. [2019-11-19 20:08:37,850 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 20:08:37,851 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 42 states and 52 transitions. [2019-11-19 20:08:37,851 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2019-11-19 20:08:37,851 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2019-11-19 20:08:37,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 52 transitions. [2019-11-19 20:08:37,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 20:08:37,851 INFO L688 BuchiCegarLoop]: Abstraction has 42 states and 52 transitions. [2019-11-19 20:08:37,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 52 transitions. [2019-11-19 20:08:37,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 31. [2019-11-19 20:08:37,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-19 20:08:37,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2019-11-19 20:08:37,854 INFO L711 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2019-11-19 20:08:37,854 INFO L591 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2019-11-19 20:08:37,855 INFO L424 BuchiCegarLoop]: ======== Iteration 9============ [2019-11-19 20:08:37,855 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 38 transitions. [2019-11-19 20:08:37,855 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 20:08:37,855 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:08:37,856 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:08:37,856 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:08:37,856 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 20:08:37,857 INFO L794 eck$LassoCheckResult]: Stem: 1125#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 1123#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~0, main_#t~nondet13, main_#t~post12, main_~i~1, main_#t~ret14.base, main_#t~ret14.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~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 1124#L528 assume !(main_~length1~0 < 1); 1113#L528-2 assume !(main_~length2~0 < 1); 1114#L531-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~0 := 0; 1119#L537-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet11, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet11; 1117#L537-2 main_#t~post10 := main_~i~0;main_~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 1118#L537-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet11, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet11; 1120#L537-2 main_#t~post10 := main_~i~0;main_~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 1133#L537-3 assume !(main_~i~0 < main_~length1~0); 1121#L537-4 main_~i~1 := 0; 1122#L541-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet13, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet13; 1131#L541-2 main_#t~post12 := main_~i~1;main_~i~1 := 1 + main_#t~post12;havoc main_#t~post12; 1132#L541-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet13, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet13; 1128#L541-2 main_#t~post12 := main_~i~1;main_~i~1 := 1 + main_#t~post12;havoc main_#t~post12; 1129#L541-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet13, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet13; 1135#L541-2 main_#t~post12 := main_~i~1;main_~i~1 := 1 + main_#t~post12;havoc main_#t~post12; 1134#L541-3 assume !(main_~i~1 < main_~length2~0); 1111#L541-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);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~post4.base, cstrpbrk_#t~post4.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset, cstrpbrk_~c~0, cstrpbrk_~sc~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_~scanp~0.base, cstrpbrk_~scanp~0.offset;havoc cstrpbrk_~c~0;havoc cstrpbrk_~sc~0; 1112#L519-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 1115#L518-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~mem3;havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 1107#L519-3 [2019-11-19 20:08:37,857 INFO L796 eck$LassoCheckResult]: Loop: 1107#L519-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 1108#L519-1 assume !!(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 1126#L520 assume !(cstrpbrk_~sc~0 == cstrpbrk_~c~0); 1107#L519-3 [2019-11-19 20:08:37,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:37,857 INFO L82 PathProgramCache]: Analyzing trace with hash 59550469, now seen corresponding path program 3 times [2019-11-19 20:08:37,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:37,857 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539085616] [2019-11-19 20:08:37,857 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:37,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:37,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:37,891 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:37,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:37,892 INFO L82 PathProgramCache]: Analyzing trace with hash 86557, now seen corresponding path program 3 times [2019-11-19 20:08:37,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:37,892 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764068743] [2019-11-19 20:08:37,892 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:37,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:37,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:37,897 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:37,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:37,898 INFO L82 PathProgramCache]: Analyzing trace with hash 246585497, now seen corresponding path program 3 times [2019-11-19 20:08:37,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:37,898 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517398714] [2019-11-19 20:08:37,898 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:37,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:37,933 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:39,752 WARN L191 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 199 DAG size of output: 164 [2019-11-19 20:08:40,055 WARN L191 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2019-11-19 20:08:40,062 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 20:08:40,062 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 20:08:40,062 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 20:08:40,062 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 20:08:40,062 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 20:08:40,062 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:40,063 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 20:08:40,063 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 20:08:40,063 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrpbrk-alloca-2.i_Iteration9_Lasso [2019-11-19 20:08:40,063 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 20:08:40,063 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 20:08:40,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:40,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:40,071 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:40,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:40,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:40,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:40,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:40,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:40,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:40,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:40,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:40,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:40,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:40,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:40,102 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:40,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:40,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:40,583 WARN L191 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2019-11-19 20:08:40,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:40,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:40,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:40,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:40,695 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:40,697 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:08:41,461 WARN L191 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 40 [2019-11-19 20:08:41,693 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 20:08:41,693 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:41,701 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 [2019-11-19 20:08:41,702 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:41,702 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:41,703 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:41,703 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:41,703 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:41,703 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:41,703 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:41,704 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 66 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 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:41,710 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 [2019-11-19 20:08:41,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:41,711 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:41,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:41,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:41,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:41,712 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:41,712 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:41,713 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 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:41,724 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 [2019-11-19 20:08:41,725 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:41,725 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:41,725 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:41,725 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:41,725 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:41,726 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:41,726 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:41,727 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:41,736 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 [2019-11-19 20:08:41,738 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:41,738 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:41,738 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:41,738 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:41,739 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:41,739 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:08:41,741 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:41,747 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 [2019-11-19 20:08:41,749 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:41,749 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:41,749 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:41,749 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:41,749 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:41,749 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:41,749 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:41,751 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 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:41,755 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 [2019-11-19 20:08:41,757 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:41,757 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:41,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:41,757 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:41,757 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:41,758 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:41,758 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:41,759 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 71 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 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:41,765 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:08:41,766 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:41,766 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:41,767 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:41,767 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:41,767 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:41,767 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:41,767 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:41,768 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 72 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 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:41,774 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 [2019-11-19 20:08:41,776 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:41,776 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:41,776 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:41,776 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:41,777 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:41,777 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:08:41,780 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 73 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 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:41,786 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 [2019-11-19 20:08:41,787 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:41,787 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:41,788 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:41,788 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:41,788 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:41,788 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:41,788 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:41,789 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 74 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 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:41,795 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 [2019-11-19 20:08:41,796 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:41,796 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:41,796 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:41,796 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:41,796 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:41,797 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:41,797 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:41,798 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 75 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 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:41,803 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 [2019-11-19 20:08:41,806 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:41,806 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:41,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:41,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:41,806 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:41,807 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:41,807 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:41,809 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 76 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 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:41,820 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 [2019-11-19 20:08:41,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:41,821 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:41,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:41,821 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:41,821 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:41,821 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:41,822 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:41,823 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 77 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 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:41,827 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 [2019-11-19 20:08:41,828 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:41,828 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:41,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:41,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:41,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:41,829 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:41,829 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:41,830 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 78 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 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:41,836 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 [2019-11-19 20:08:41,837 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:41,837 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:41,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:41,838 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:41,838 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:41,838 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:41,838 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:41,839 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 79 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 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:41,845 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 [2019-11-19 20:08:41,846 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:41,846 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:41,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:41,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:41,846 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:41,847 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:41,847 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:41,848 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 80 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 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:41,854 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:08:41,855 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:41,855 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:08:41,855 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:41,855 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:41,856 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:41,856 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:08:41,856 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:08:41,857 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 81 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 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:41,863 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 [2019-11-19 20:08:41,865 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:41,865 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2019-11-19 20:08:41,865 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:41,865 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:41,876 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-19 20:08:41,877 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:08:41,900 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 82 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 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:41,906 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 [2019-11-19 20:08:41,907 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:41,907 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2019-11-19 20:08:41,907 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2019-11-19 20:08:41,908 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:41,927 INFO L401 nArgumentSynthesizer]: We have 56 Motzkin's Theorem applications. [2019-11-19 20:08:41,927 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2019-11-19 20:08:41,977 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 83 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 83 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:41,982 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:08:41,984 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:41,984 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:41,984 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:41,984 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:41,986 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:41,986 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:08:41,991 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 84 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 84 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:41,996 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 [2019-11-19 20:08:41,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:41,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:41,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:41,997 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:41,998 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:41,998 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:08:42,002 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 85 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 85 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:42,007 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 [2019-11-19 20:08:42,009 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:42,009 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:42,009 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:42,009 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:42,011 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:42,011 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:08:42,014 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 86 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 86 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:42,019 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:08:42,021 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:42,021 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:42,021 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:42,021 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:42,026 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:42,026 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:08:42,049 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 87 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:42,060 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 [2019-11-19 20:08:42,062 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:08:42,062 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:08:42,062 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:08:42,062 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:08:42,068 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:08:42,068 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 87 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:42,084 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 20:08:42,112 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2019-11-19 20:08:42,112 INFO L444 ModelExtractionUtils]: 19 out of 31 variables were initially zero. Simplification set additionally 9 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 88 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:08:42,117 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 88 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:08:42,120 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-19 20:08:42,120 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 20:08:42,120 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc9.base)_5, ULTIMATE.start_cstrpbrk_~scanp~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc9.base)_5 - 1*ULTIMATE.start_cstrpbrk_~scanp~0.offset Supporting invariants [] [2019-11-19 20:08:42,187 INFO L297 tatePredicateManager]: 18 out of 19 supporting invariants were superfluous and have been removed [2019-11-19 20:08:42,189 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-19 20:08:42,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:42,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:08:42,231 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-19 20:08:42,232 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:08:42,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:08:42,258 WARN L253 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-19 20:08:42,258 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:08:42,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:08:42,273 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2019-11-19 20:08:42,273 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 38 transitions. cyclomatic complexity: 11 Second operand 5 states. [2019-11-19 20:08:42,329 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 38 transitions. cyclomatic complexity: 11. Second operand 5 states. Result 48 states and 58 transitions. Complement of second has 7 states. [2019-11-19 20:08:42,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-19 20:08:42,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-19 20:08:42,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 23 transitions. [2019-11-19 20:08:42,334 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 21 letters. Loop has 3 letters. [2019-11-19 20:08:42,335 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:08:42,335 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 24 letters. Loop has 3 letters. [2019-11-19 20:08:42,335 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:08:42,335 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 21 letters. Loop has 6 letters. [2019-11-19 20:08:42,336 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:08:42,336 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 58 transitions. [2019-11-19 20:08:42,337 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 20:08:42,337 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 38 states and 47 transitions. [2019-11-19 20:08:42,338 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2019-11-19 20:08:42,338 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2019-11-19 20:08:42,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 47 transitions. [2019-11-19 20:08:42,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 20:08:42,338 INFO L688 BuchiCegarLoop]: Abstraction has 38 states and 47 transitions. [2019-11-19 20:08:42,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 47 transitions. [2019-11-19 20:08:42,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 27. [2019-11-19 20:08:42,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-19 20:08:42,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2019-11-19 20:08:42,341 INFO L711 BuchiCegarLoop]: Abstraction has 27 states and 33 transitions. [2019-11-19 20:08:42,341 INFO L591 BuchiCegarLoop]: Abstraction has 27 states and 33 transitions. [2019-11-19 20:08:42,341 INFO L424 BuchiCegarLoop]: ======== Iteration 10============ [2019-11-19 20:08:42,341 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 33 transitions. [2019-11-19 20:08:42,341 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 20:08:42,341 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:08:42,342 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:08:42,342 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:08:42,342 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 20:08:42,343 INFO L794 eck$LassoCheckResult]: Stem: 1386#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 1384#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~0, main_#t~nondet13, main_#t~post12, main_~i~1, main_#t~ret14.base, main_#t~ret14.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~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 1385#L528 assume !(main_~length1~0 < 1); 1373#L528-2 assume !(main_~length2~0 < 1); 1374#L531-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~0 := 0; 1380#L537-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet11, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet11; 1378#L537-2 main_#t~post10 := main_~i~0;main_~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 1379#L537-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet11, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet11; 1381#L537-2 main_#t~post10 := main_~i~0;main_~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 1393#L537-3 assume !(main_~i~0 < main_~length1~0); 1382#L537-4 main_~i~1 := 0; 1383#L541-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet13, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet13; 1391#L541-2 main_#t~post12 := main_~i~1;main_~i~1 := 1 + main_#t~post12;havoc main_#t~post12; 1392#L541-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet13, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet13; 1389#L541-2 main_#t~post12 := main_~i~1;main_~i~1 := 1 + main_#t~post12;havoc main_#t~post12; 1390#L541-3 assume !(main_~i~1 < main_~length2~0); 1371#L541-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);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~post4.base, cstrpbrk_#t~post4.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset, cstrpbrk_~c~0, cstrpbrk_~sc~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_~scanp~0.base, cstrpbrk_~scanp~0.offset;havoc cstrpbrk_~c~0;havoc cstrpbrk_~sc~0; 1372#L519-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 1375#L518-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~mem3;havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 1369#L519-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 1370#L519-1 assume !(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 1376#L519-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 1377#L518-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~mem3;havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 1367#L519-3 [2019-11-19 20:08:42,343 INFO L796 eck$LassoCheckResult]: Loop: 1367#L519-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 1368#L519-1 assume !!(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 1387#L520 assume !(cstrpbrk_~sc~0 == cstrpbrk_~c~0); 1367#L519-3 [2019-11-19 20:08:42,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:42,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1839510475, now seen corresponding path program 3 times [2019-11-19 20:08:42,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:42,343 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682701288] [2019-11-19 20:08:42,344 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:42,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:08:42,647 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-19 20:08:42,647 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682701288] [2019-11-19 20:08:42,647 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985992439] [2019-11-19 20:08:42,647 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 89 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 89 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 20:08:42,707 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-11-19 20:08:42,707 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-19 20:08:42,709 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 39 conjunts are in the unsatisfiable core [2019-11-19 20:08:42,711 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:08:42,727 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-19 20:08:42,727 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 20:08:42,734 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 20:08:42,734 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-19 20:08:42,735 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:8 [2019-11-19 20:08:42,821 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 21 [2019-11-19 20:08:42,821 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 20:08:42,831 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 20:08:42,833 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2019-11-19 20:08:42,833 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:47, output treesize:31 [2019-11-19 20:08:42,913 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 20:08:42,914 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 21 [2019-11-19 20:08:42,914 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2019-11-19 20:08:42,930 INFO L567 ElimStorePlain]: treesize reduction 8, result has 63.6 percent of original size [2019-11-19 20:08:42,931 INFO L496 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-19 20:08:42,931 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:38, output treesize:3 [2019-11-19 20:08:42,935 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-19 20:08:42,935 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-19 20:08:42,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2019-11-19 20:08:42,936 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053800423] [2019-11-19 20:08:42,936 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-19 20:08:42,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:42,936 INFO L82 PathProgramCache]: Analyzing trace with hash 86557, now seen corresponding path program 4 times [2019-11-19 20:08:42,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:42,937 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848645920] [2019-11-19 20:08:42,937 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:42,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:42,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:42,943 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:42,988 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:08:42,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-11-19 20:08:42,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2019-11-19 20:08:42,989 INFO L87 Difference]: Start difference. First operand 27 states and 33 transitions. cyclomatic complexity: 10 Second operand 17 states. [2019-11-19 20:08:43,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:08:43,442 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2019-11-19 20:08:43,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-19 20:08:43,442 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 52 transitions. [2019-11-19 20:08:43,443 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 20:08:43,444 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 30 states and 36 transitions. [2019-11-19 20:08:43,444 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2019-11-19 20:08:43,444 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2019-11-19 20:08:43,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 36 transitions. [2019-11-19 20:08:43,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 20:08:43,444 INFO L688 BuchiCegarLoop]: Abstraction has 30 states and 36 transitions. [2019-11-19 20:08:43,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 36 transitions. [2019-11-19 20:08:43,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2019-11-19 20:08:43,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-19 20:08:43,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2019-11-19 20:08:43,448 INFO L711 BuchiCegarLoop]: Abstraction has 29 states and 35 transitions. [2019-11-19 20:08:43,448 INFO L591 BuchiCegarLoop]: Abstraction has 29 states and 35 transitions. [2019-11-19 20:08:43,448 INFO L424 BuchiCegarLoop]: ======== Iteration 11============ [2019-11-19 20:08:43,448 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 35 transitions. [2019-11-19 20:08:43,449 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 20:08:43,449 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:08:43,449 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:08:43,450 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:08:43,450 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 20:08:43,450 INFO L794 eck$LassoCheckResult]: Stem: 1560#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 1558#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~0, main_#t~nondet13, main_#t~post12, main_~i~1, main_#t~ret14.base, main_#t~ret14.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~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 1559#L528 assume !(main_~length1~0 < 1); 1546#L528-2 assume !(main_~length2~0 < 1); 1547#L531-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~0 := 0; 1553#L537-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet11, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet11; 1554#L537-2 main_#t~post10 := main_~i~0;main_~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 1568#L537-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet11, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet11; 1551#L537-2 main_#t~post10 := main_~i~0;main_~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 1552#L537-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet11, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet11; 1555#L537-2 main_#t~post10 := main_~i~0;main_~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 1567#L537-3 assume !(main_~i~0 < main_~length1~0); 1556#L537-4 main_~i~1 := 0; 1557#L541-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet13, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet13; 1565#L541-2 main_#t~post12 := main_~i~1;main_~i~1 := 1 + main_#t~post12;havoc main_#t~post12; 1566#L541-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet13, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet13; 1563#L541-2 main_#t~post12 := main_~i~1;main_~i~1 := 1 + main_#t~post12;havoc main_#t~post12; 1564#L541-3 assume !(main_~i~1 < main_~length2~0); 1544#L541-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);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~post4.base, cstrpbrk_#t~post4.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset, cstrpbrk_~c~0, cstrpbrk_~sc~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_~scanp~0.base, cstrpbrk_~scanp~0.offset;havoc cstrpbrk_~c~0;havoc cstrpbrk_~sc~0; 1545#L519-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 1548#L518-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~mem3;havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 1542#L519-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 1543#L519-1 assume !(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 1549#L519-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 1550#L518-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~mem3;havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 1540#L519-3 [2019-11-19 20:08:43,450 INFO L796 eck$LassoCheckResult]: Loop: 1540#L519-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 1541#L519-1 assume !!(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 1561#L520 assume !(cstrpbrk_~sc~0 == cstrpbrk_~c~0); 1540#L519-3 [2019-11-19 20:08:43,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:43,451 INFO L82 PathProgramCache]: Analyzing trace with hash -1269061459, now seen corresponding path program 4 times [2019-11-19 20:08:43,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:43,451 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429141508] [2019-11-19 20:08:43,451 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:43,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:43,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:43,488 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:43,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:43,489 INFO L82 PathProgramCache]: Analyzing trace with hash 86557, now seen corresponding path program 5 times [2019-11-19 20:08:43,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:43,489 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904233835] [2019-11-19 20:08:43,489 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:43,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:43,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:08:43,495 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:08:43,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:08:43,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1987238385, now seen corresponding path program 1 times [2019-11-19 20:08:43,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:08:43,496 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482492047] [2019-11-19 20:08:43,496 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:08:43,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:08:43,560 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-11-19 20:08:43,561 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482492047] [2019-11-19 20:08:43,561 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873609446] [2019-11-19 20:08:43,561 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 90 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 90 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-19 20:08:43,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:08:43,624 INFO L255 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 32 conjunts are in the unsatisfiable core [2019-11-19 20:08:43,630 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:08:43,665 INFO L343 Elim1Store]: treesize reduction 40, result has 20.0 percent of original size [2019-11-19 20:08:43,665 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 21 [2019-11-19 20:08:43,666 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 20:08:43,671 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 20:08:43,672 INFO L496 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2019-11-19 20:08:43,673 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:36, output treesize:21 [2019-11-19 20:08:50,381 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification that was a NOOP. DAG size: 15 [2019-11-19 20:08:54,942 WARN L191 SmtUtils]: Spent 2.54 s on a formula simplification that was a NOOP. DAG size: 15 [2019-11-19 20:08:54,962 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 20:08:54,962 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 21 [2019-11-19 20:08:54,962 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 20:08:54,964 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 20:08:54,964 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-19 20:08:54,965 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:25, output treesize:3 [2019-11-19 20:08:54,969 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-11-19 20:08:54,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-19 20:08:54,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 12 [2019-11-19 20:08:54,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906507643] [2019-11-19 20:08:55,010 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:08:55,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-19 20:08:55,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=101, Unknown=3, NotChecked=0, Total=132 [2019-11-19 20:08:55,011 INFO L87 Difference]: Start difference. First operand 29 states and 35 transitions. cyclomatic complexity: 10 Second operand 12 states. [2019-11-19 20:08:57,231 WARN L191 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 18 DAG size of output: 17 [2019-11-19 20:09:01,087 WARN L191 SmtUtils]: Spent 3.83 s on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2019-11-19 20:09:01,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:09:01,154 INFO L93 Difference]: Finished difference Result 44 states and 51 transitions. [2019-11-19 20:09:01,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-19 20:09:01,155 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 51 transitions. [2019-11-19 20:09:01,156 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 20:09:01,156 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 38 states and 44 transitions. [2019-11-19 20:09:01,156 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2019-11-19 20:09:01,156 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2019-11-19 20:09:01,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 44 transitions. [2019-11-19 20:09:01,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 20:09:01,157 INFO L688 BuchiCegarLoop]: Abstraction has 38 states and 44 transitions. [2019-11-19 20:09:01,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 44 transitions. [2019-11-19 20:09:01,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 31. [2019-11-19 20:09:01,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-19 20:09:01,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2019-11-19 20:09:01,160 INFO L711 BuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2019-11-19 20:09:01,160 INFO L591 BuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2019-11-19 20:09:01,160 INFO L424 BuchiCegarLoop]: ======== Iteration 12============ [2019-11-19 20:09:01,161 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 37 transitions. [2019-11-19 20:09:01,161 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 20:09:01,161 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:09:01,161 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:09:01,162 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:09:01,162 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 20:09:01,163 INFO L794 eck$LassoCheckResult]: Stem: 1740#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 1738#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~0, main_#t~nondet13, main_#t~post12, main_~i~1, main_#t~ret14.base, main_#t~ret14.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~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 1739#L528 assume !(main_~length1~0 < 1); 1727#L528-2 assume !(main_~length2~0 < 1); 1728#L531-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~0 := 0; 1734#L537-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet11, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet11; 1732#L537-2 main_#t~post10 := main_~i~0;main_~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 1733#L537-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet11, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet11; 1735#L537-2 main_#t~post10 := main_~i~0;main_~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 1751#L537-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet11, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet11; 1749#L537-2 main_#t~post10 := main_~i~0;main_~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 1748#L537-3 assume !(main_~i~0 < main_~length1~0); 1736#L537-4 main_~i~1 := 0; 1737#L541-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet13, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet13; 1744#L541-2 main_#t~post12 := main_~i~1;main_~i~1 := 1 + main_#t~post12;havoc main_#t~post12; 1745#L541-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet13, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet13; 1746#L541-2 main_#t~post12 := main_~i~1;main_~i~1 := 1 + main_#t~post12;havoc main_#t~post12; 1747#L541-3 assume !(main_~i~1 < main_~length2~0); 1725#L541-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);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~post4.base, cstrpbrk_#t~post4.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset, cstrpbrk_~c~0, cstrpbrk_~sc~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_~scanp~0.base, cstrpbrk_~scanp~0.offset;havoc cstrpbrk_~c~0;havoc cstrpbrk_~sc~0; 1726#L519-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 1729#L518-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~mem3;havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 1723#L519-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 1724#L519-1 assume !!(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 1742#L520 assume !(cstrpbrk_~sc~0 == cstrpbrk_~c~0); 1743#L519-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 1750#L519-1 assume !(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 1730#L519-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 1731#L518-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~mem3;havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 1721#L519-3 [2019-11-19 20:09:01,163 INFO L796 eck$LassoCheckResult]: Loop: 1721#L519-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 1722#L519-1 assume !!(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 1741#L520 assume !(cstrpbrk_~sc~0 == cstrpbrk_~c~0); 1721#L519-3 [2019-11-19 20:09:01,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:09:01,164 INFO L82 PathProgramCache]: Analyzing trace with hash 2062165185, now seen corresponding path program 2 times [2019-11-19 20:09:01,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:09:01,164 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349345657] [2019-11-19 20:09:01,164 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:09:01,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:09:01,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:09:01,202 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:09:01,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:09:01,203 INFO L82 PathProgramCache]: Analyzing trace with hash 86557, now seen corresponding path program 6 times [2019-11-19 20:09:01,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:09:01,203 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500437784] [2019-11-19 20:09:01,203 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:09:01,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:09:01,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:09:01,208 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:09:01,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:09:01,209 INFO L82 PathProgramCache]: Analyzing trace with hash -1249118883, now seen corresponding path program 3 times [2019-11-19 20:09:01,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:09:01,209 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927900800] [2019-11-19 20:09:01,209 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:09:01,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:09:01,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:09:01,249 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:09:03,146 WARN L191 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 270 DAG size of output: 220 [2019-11-19 20:09:03,532 WARN L191 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-11-19 20:09:03,534 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 20:09:03,534 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 20:09:03,534 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 20:09:03,535 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 20:09:03,535 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 20:09:03,535 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:03,535 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 20:09:03,535 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 20:09:03,535 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrpbrk-alloca-2.i_Iteration12_Lasso [2019-11-19 20:09:03,535 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 20:09:03,535 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 20:09:03,540 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:03,551 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:03,553 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:03,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:03,557 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:03,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:03,560 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:03,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:03,564 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:03,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:03,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:03,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:03,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:03,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:03,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:03,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:03,580 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:03,582 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:03,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:04,230 WARN L191 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 100 [2019-11-19 20:09:04,413 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2019-11-19 20:09:04,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:04,416 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:04,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:04,419 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:04,764 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 37 [2019-11-19 20:09:05,462 WARN L191 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 40 [2019-11-19 20:09:05,616 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 20:09:05,617 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 91 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 91 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:05,624 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 [2019-11-19 20:09:05,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:05,626 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:09:05,626 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:09:05,626 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:09:05,627 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:09:05,627 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:09:05,629 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 92 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:09:05,635 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 92 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:05,637 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:05,637 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:09:05,638 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:09:05,638 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:09:05,638 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:09:05,638 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:09:05,638 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:09:05,641 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 93 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 93 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:05,650 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 [2019-11-19 20:09:05,651 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:05,651 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:09:05,652 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:09:05,652 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:09:05,652 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:09:05,652 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:09:05,653 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:09:05,655 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 94 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 94 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:05,660 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 [2019-11-19 20:09:05,661 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:05,661 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:09:05,661 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:09:05,661 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:09:05,662 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:09:05,662 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:09:05,662 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:09:05,663 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 95 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:09:05,668 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 95 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:05,670 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:05,670 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:09:05,670 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:09:05,670 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:09:05,670 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:09:05,670 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:09:05,670 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:09:05,671 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 96 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 96 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:05,676 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 [2019-11-19 20:09:05,677 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:05,678 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:09:05,678 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:09:05,678 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:09:05,678 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:09:05,679 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:09:05,679 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:09:05,680 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 97 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 97 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:05,684 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 [2019-11-19 20:09:05,686 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:05,686 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:09:05,686 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:09:05,687 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:09:05,688 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:09:05,689 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:09:05,693 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 98 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 98 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:05,697 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:09:05,699 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:05,699 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:09:05,699 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:09:05,699 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:09:05,699 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:09:05,699 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:09:05,700 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:09:05,701 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 99 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 99 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:05,706 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 [2019-11-19 20:09:05,708 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:05,708 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:09:05,708 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:09:05,708 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:09:05,709 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:09:05,709 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:09:05,712 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 100 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 100 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:05,718 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:09:05,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:05,719 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:09:05,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:09:05,719 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:09:05,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:09:05,720 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:09:05,720 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:09:05,721 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 101 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 101 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:05,725 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 [2019-11-19 20:09:05,726 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:05,726 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:09:05,726 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:09:05,726 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:09:05,726 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:09:05,727 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:09:05,727 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:09:05,728 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 102 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 102 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:05,732 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 [2019-11-19 20:09:05,734 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:05,734 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:09:05,734 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:09:05,734 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:09:05,734 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:09:05,735 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:09:05,735 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:09:05,736 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 103 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:09:05,746 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 [2019-11-19 20:09:05,747 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:05,747 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:09:05,748 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:09:05,748 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:09:05,748 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:09:05,748 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:09:05,748 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 103 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:05,749 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 104 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:09:05,759 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 [2019-11-19 20:09:05,760 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:05,760 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:09:05,760 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:09:05,761 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:09:05,761 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:09:05,761 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:09:05,761 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 104 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:05,763 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 105 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 105 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:05,773 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:09:05,774 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:05,775 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:09:05,775 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:09:05,775 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:09:05,776 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:09:05,776 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:09:05,778 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 106 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 106 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:05,784 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 [2019-11-19 20:09:05,785 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:05,785 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:09:05,785 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:09:05,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:09:05,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:09:05,786 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:09:05,786 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:09:05,787 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 107 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 107 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:05,792 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 [2019-11-19 20:09:05,793 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:05,794 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:09:05,794 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:09:05,794 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:09:05,794 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:09:05,794 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:09:05,794 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:09:05,795 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 108 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 108 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:05,801 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 [2019-11-19 20:09:05,802 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:05,802 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:09:05,802 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:09:05,802 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:09:05,802 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:09:05,802 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:09:05,803 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:09:05,804 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 109 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 109 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:05,810 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 [2019-11-19 20:09:05,811 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:05,811 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:09:05,811 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:09:05,811 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:09:05,815 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:09:05,816 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:09:05,825 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 110 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 110 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:05,830 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 [2019-11-19 20:09:05,831 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:05,832 INFO L203 nArgumentSynthesizer]: 6 stem disjuncts [2019-11-19 20:09:05,832 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:09:05,832 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:09:05,834 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2019-11-19 20:09:05,834 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:09:05,844 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 111 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 111 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:05,849 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 [2019-11-19 20:09:05,850 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:05,850 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2019-11-19 20:09:05,850 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2019-11-19 20:09:05,851 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:09:05,874 INFO L401 nArgumentSynthesizer]: We have 56 Motzkin's Theorem applications. [2019-11-19 20:09:05,875 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2019-11-19 20:09:05,955 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 112 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:09:05,969 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 [2019-11-19 20:09:05,973 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:05,973 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2019-11-19 20:09:05,973 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:09:05,973 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 112 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:05,988 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-19 20:09:05,988 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:09:06,029 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 113 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:09:06,039 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 [2019-11-19 20:09:06,041 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:06,042 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:09:06,042 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:09:06,042 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 113 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:06,044 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:09:06,044 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:09:06,050 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 114 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:09:06,057 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 [2019-11-19 20:09:06,059 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:06,059 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:09:06,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:09:06,060 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:09:06,064 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:09:06,065 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 114 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:06,075 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 115 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:09:06,084 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 [2019-11-19 20:09:06,087 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:06,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:09:06,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:09:06,088 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:09:06,100 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:09:06,101 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 115 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:06,129 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 20:09:06,241 INFO L443 ModelExtractionUtils]: Simplification made 32 calls to the SMT solver. [2019-11-19 20:09:06,241 INFO L444 ModelExtractionUtils]: 15 out of 40 variables were initially zero. Simplification set additionally 19 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 116 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:09:06,247 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 116 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:06,251 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-19 20:09:06,251 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 20:09:06,252 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrpbrk_~s1.offset, ULTIMATE.start_cstrpbrk_~scanp~0.offset) = 1*ULTIMATE.start_cstrpbrk_~s1.offset - 1*ULTIMATE.start_cstrpbrk_~scanp~0.offset Supporting invariants [1*ULTIMATE.start_main_~length2~0 + 1*ULTIMATE.start_main_~nondetString2~0.offset - 1*v_rep(select #length ULTIMATE.start_cstrpbrk_~s2.base)_1 >= 0] [2019-11-19 20:09:06,459 INFO L297 tatePredicateManager]: 30 out of 33 supporting invariants were superfluous and have been removed [2019-11-19 20:09:06,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:09:06,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:09:06,530 INFO L255 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 34 conjunts are in the unsatisfiable core [2019-11-19 20:09:06,532 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:09:06,549 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 20:09:06,549 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2019-11-19 20:09:06,549 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 20:09:06,571 INFO L567 ElimStorePlain]: treesize reduction 10, result has 68.8 percent of original size [2019-11-19 20:09:06,572 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-19 20:09:06,572 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:13 [2019-11-19 20:09:06,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:09:06,794 WARN L253 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-19 20:09:06,794 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:09:06,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:09:06,846 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.10 stem predicates 2 loop predicates [2019-11-19 20:09:06,846 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 37 transitions. cyclomatic complexity: 10 Second operand 12 states. [2019-11-19 20:09:07,196 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 37 transitions. cyclomatic complexity: 10. Second operand 12 states. Result 38 states and 45 transitions. Complement of second has 11 states. [2019-11-19 20:09:07,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 9 stem states 0 non-accepting loop states 1 accepting loop states [2019-11-19 20:09:07,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-19 20:09:07,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 27 transitions. [2019-11-19 20:09:07,198 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 27 transitions. Stem has 28 letters. Loop has 3 letters. [2019-11-19 20:09:07,199 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:09:07,199 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-19 20:09:07,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:09:07,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:09:07,267 INFO L255 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 34 conjunts are in the unsatisfiable core [2019-11-19 20:09:07,269 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:09:07,295 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 20:09:07,295 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2019-11-19 20:09:07,295 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 20:09:07,324 INFO L567 ElimStorePlain]: treesize reduction 10, result has 68.8 percent of original size [2019-11-19 20:09:07,324 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-19 20:09:07,325 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:13 [2019-11-19 20:09:07,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:09:07,545 WARN L253 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-19 20:09:07,546 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:09:07,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:09:07,582 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.10 stem predicates 2 loop predicates [2019-11-19 20:09:07,582 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 37 transitions. cyclomatic complexity: 10 Second operand 12 states. [2019-11-19 20:09:07,916 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 37 transitions. cyclomatic complexity: 10. Second operand 12 states. Result 38 states and 45 transitions. Complement of second has 11 states. [2019-11-19 20:09:07,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 9 stem states 0 non-accepting loop states 1 accepting loop states [2019-11-19 20:09:07,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-19 20:09:07,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 27 transitions. [2019-11-19 20:09:07,918 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 27 transitions. Stem has 28 letters. Loop has 3 letters. [2019-11-19 20:09:07,918 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:09:07,918 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-19 20:09:07,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:09:07,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:09:07,994 INFO L255 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 34 conjunts are in the unsatisfiable core [2019-11-19 20:09:07,996 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:09:08,025 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-19 20:09:08,025 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2019-11-19 20:09:08,026 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-19 20:09:08,049 INFO L567 ElimStorePlain]: treesize reduction 10, result has 68.8 percent of original size [2019-11-19 20:09:08,050 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-19 20:09:08,050 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:13 [2019-11-19 20:09:08,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:09:08,313 WARN L253 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-19 20:09:08,314 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:09:08,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:09:08,340 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.10 stem predicates 2 loop predicates [2019-11-19 20:09:08,341 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 37 transitions. cyclomatic complexity: 10 Second operand 12 states. [2019-11-19 20:09:08,746 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 37 transitions. cyclomatic complexity: 10. Second operand 12 states. Result 73 states and 86 transitions. Complement of second has 16 states. [2019-11-19 20:09:08,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 13 states 10 stem states 1 non-accepting loop states 2 accepting loop states [2019-11-19 20:09:08,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-19 20:09:08,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 57 transitions. [2019-11-19 20:09:08,750 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 57 transitions. Stem has 28 letters. Loop has 3 letters. [2019-11-19 20:09:08,750 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:09:08,750 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 57 transitions. Stem has 31 letters. Loop has 3 letters. [2019-11-19 20:09:08,751 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:09:08,751 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 57 transitions. Stem has 28 letters. Loop has 6 letters. [2019-11-19 20:09:08,752 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:09:08,752 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 73 states and 86 transitions. [2019-11-19 20:09:08,753 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-19 20:09:08,754 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 73 states to 64 states and 75 transitions. [2019-11-19 20:09:08,754 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2019-11-19 20:09:08,754 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2019-11-19 20:09:08,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 64 states and 75 transitions. [2019-11-19 20:09:08,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-19 20:09:08,755 INFO L688 BuchiCegarLoop]: Abstraction has 64 states and 75 transitions. [2019-11-19 20:09:08,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states and 75 transitions. [2019-11-19 20:09:08,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 42. [2019-11-19 20:09:08,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-19 20:09:08,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2019-11-19 20:09:08,758 INFO L711 BuchiCegarLoop]: Abstraction has 42 states and 50 transitions. [2019-11-19 20:09:08,758 INFO L591 BuchiCegarLoop]: Abstraction has 42 states and 50 transitions. [2019-11-19 20:09:08,758 INFO L424 BuchiCegarLoop]: ======== Iteration 13============ [2019-11-19 20:09:08,758 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 50 transitions. [2019-11-19 20:09:08,759 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-19 20:09:08,759 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:09:08,759 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:09:08,759 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:09:08,760 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-19 20:09:08,760 INFO L794 eck$LassoCheckResult]: Stem: 2460#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 2458#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~malloc9.base, main_#t~malloc9.offset, main_#t~nondet11, main_#t~post10, main_~i~0, main_#t~nondet13, main_#t~post12, main_~i~1, main_#t~ret14.base, main_#t~ret14.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~nondet6;havoc main_#t~nondet6;main_~length2~0 := main_#t~nondet7;havoc main_#t~nondet7; 2459#L528 assume !(main_~length1~0 < 1); 2447#L528-2 assume !(main_~length2~0 < 1); 2448#L531-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call main_#t~malloc9.base, main_#t~malloc9.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc9.base, main_#t~malloc9.offset;main_~i~0 := 0; 2454#L537-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet11, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet11; 2452#L537-2 main_#t~post10 := main_~i~0;main_~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 2453#L537-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet11, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet11; 2455#L537-2 main_#t~post10 := main_~i~0;main_~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 2470#L537-3 assume !!(main_~i~0 < main_~length1~0);call write~int(main_#t~nondet11, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet11; 2469#L537-2 main_#t~post10 := main_~i~0;main_~i~0 := 1 + main_#t~post10;havoc main_#t~post10; 2468#L537-3 assume !(main_~i~0 < main_~length1~0); 2456#L537-4 main_~i~1 := 0; 2457#L541-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet13, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet13; 2466#L541-2 main_#t~post12 := main_~i~1;main_~i~1 := 1 + main_#t~post12;havoc main_#t~post12; 2467#L541-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet13, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet13; 2464#L541-2 main_#t~post12 := main_~i~1;main_~i~1 := 1 + main_#t~post12;havoc main_#t~post12; 2465#L541-3 assume !!(main_~i~1 < main_~length2~0);call write~int(main_#t~nondet13, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet13; 2473#L541-2 main_#t~post12 := main_~i~1;main_~i~1 := 1 + main_#t~post12;havoc main_#t~post12; 2471#L541-3 assume !(main_~i~1 < main_~length2~0); 2472#L541-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);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~post4.base, cstrpbrk_#t~post4.offset, cstrpbrk_#t~mem5, cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, cstrpbrk_#t~mem3, cstrpbrk_~s1.base, cstrpbrk_~s1.offset, cstrpbrk_~s2.base, cstrpbrk_~s2.offset, cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset, cstrpbrk_~c~0, cstrpbrk_~sc~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_~scanp~0.base, cstrpbrk_~scanp~0.offset;havoc cstrpbrk_~c~0;havoc cstrpbrk_~sc~0; 2449#L519-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 2450#L518-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~mem3;havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 2443#L519-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 2444#L519-1 assume !!(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 2462#L520 assume !(cstrpbrk_~sc~0 == cstrpbrk_~c~0); 2463#L519-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 2474#L519-1 assume !(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 2475#L519-4 cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset := cstrpbrk_~s1.base, cstrpbrk_~s1.offset;cstrpbrk_~s1.base, cstrpbrk_~s1.offset := cstrpbrk_#t~post2.base, 1 + cstrpbrk_#t~post2.offset;call cstrpbrk_#t~mem3 := read~int(cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset, 1);cstrpbrk_~c~0 := cstrpbrk_#t~mem3; 2476#L518-1 assume !!(0 != cstrpbrk_~c~0);havoc cstrpbrk_#t~mem3;havoc cstrpbrk_#t~post2.base, cstrpbrk_#t~post2.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_~s2.base, cstrpbrk_~s2.offset; 2441#L519-3 [2019-11-19 20:09:08,760 INFO L796 eck$LassoCheckResult]: Loop: 2441#L519-3 cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset := cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset;cstrpbrk_~scanp~0.base, cstrpbrk_~scanp~0.offset := cstrpbrk_#t~post4.base, 1 + cstrpbrk_#t~post4.offset;call cstrpbrk_#t~mem5 := read~int(cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset, 1);cstrpbrk_~sc~0 := cstrpbrk_#t~mem5; 2442#L519-1 assume !!(0 != cstrpbrk_~sc~0);havoc cstrpbrk_#t~post4.base, cstrpbrk_#t~post4.offset;havoc cstrpbrk_#t~mem5; 2461#L520 assume !(cstrpbrk_~sc~0 == cstrpbrk_~c~0); 2441#L519-3 [2019-11-19 20:09:08,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:09:08,760 INFO L82 PathProgramCache]: Analyzing trace with hash 659963103, now seen corresponding path program 4 times [2019-11-19 20:09:08,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:09:08,761 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598441839] [2019-11-19 20:09:08,761 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:09:08,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:09:08,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:09:08,797 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:09:08,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:09:08,797 INFO L82 PathProgramCache]: Analyzing trace with hash 86557, now seen corresponding path program 7 times [2019-11-19 20:09:08,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:09:08,798 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258820606] [2019-11-19 20:09:08,798 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:09:08,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:09:08,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:09:08,802 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:09:08,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:09:08,802 INFO L82 PathProgramCache]: Analyzing trace with hash -1399422849, now seen corresponding path program 5 times [2019-11-19 20:09:08,802 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:09:08,803 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171723417] [2019-11-19 20:09:08,803 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:09:08,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:09:08,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:09:08,842 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:09:12,226 WARN L191 SmtUtils]: Spent 3.34 s on a formula simplification. DAG size of input: 284 DAG size of output: 230 [2019-11-19 20:09:12,695 WARN L191 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2019-11-19 20:09:12,698 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 20:09:12,698 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 20:09:12,698 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 20:09:12,698 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 20:09:12,698 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 20:09:12,698 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:12,698 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 20:09:12,698 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 20:09:12,698 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrpbrk-alloca-2.i_Iteration13_Lasso [2019-11-19 20:09:12,698 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 20:09:12,698 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 20:09:12,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:12,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:12,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:12,706 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:12,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:12,718 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:12,720 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:12,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:12,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:13,394 WARN L191 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 100 [2019-11-19 20:09:13,551 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2019-11-19 20:09:13,552 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:13,553 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:13,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:13,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:13,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:13,560 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:13,561 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:13,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:13,565 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:13,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:13,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:13,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:13,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:13,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:13,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 20:09:13,911 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2019-11-19 20:09:14,587 WARN L191 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 40 [2019-11-19 20:09:14,859 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 20:09:14,860 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 117 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:09:14,888 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 [2019-11-19 20:09:14,889 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:14,889 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:09:14,889 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:09:14,889 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:09:14,891 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:09:14,891 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 117 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:14,894 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 118 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:09:14,900 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 [2019-11-19 20:09:14,901 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:14,901 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:09:14,901 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:09:14,902 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:09:14,903 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:09:14,903 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 118 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:14,906 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 119 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 119 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:14,912 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 [2019-11-19 20:09:14,913 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:14,913 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:09:14,913 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:09:14,913 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:09:14,913 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:09:14,914 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:09:14,914 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:09:14,915 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 120 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 120 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:14,919 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:09:14,920 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:14,920 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:09:14,920 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:09:14,921 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:09:14,921 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:09:14,921 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:09:14,921 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:09:14,922 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 121 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 121 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:14,926 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 [2019-11-19 20:09:14,928 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:14,928 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:09:14,928 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:09:14,928 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:09:14,929 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:09:14,929 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:09:14,932 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 122 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 122 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:14,938 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:09:14,939 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:14,939 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:09:14,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:09:14,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:09:14,941 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:09:14,941 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:09:14,945 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 123 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 123 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:14,950 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 [2019-11-19 20:09:14,951 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:14,951 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:09:14,951 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:09:14,951 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:09:14,951 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:09:14,952 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:09:14,952 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:09:14,953 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 124 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 124 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:14,958 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-19 20:09:14,959 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:14,959 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 20:09:14,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:09:14,959 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:09:14,959 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:09:14,960 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 20:09:14,960 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 20:09:14,961 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 125 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 125 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:14,967 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 [2019-11-19 20:09:14,969 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:14,969 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:09:14,969 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:09:14,969 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:09:14,971 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:09:14,971 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:09:14,975 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 126 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 126 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:14,981 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 [2019-11-19 20:09:14,983 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:14,983 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2019-11-19 20:09:14,984 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2019-11-19 20:09:14,984 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:09:15,010 INFO L401 nArgumentSynthesizer]: We have 56 Motzkin's Theorem applications. [2019-11-19 20:09:15,010 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2019-11-19 20:09:15,103 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 127 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:09:15,113 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 [2019-11-19 20:09:15,114 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:15,115 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:09:15,115 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:09:15,115 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:09:15,119 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:09:15,119 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 127 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:15,129 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 128 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:09:15,140 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 [2019-11-19 20:09:15,142 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:15,142 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2019-11-19 20:09:15,143 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:09:15,143 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 128 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:15,159 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-19 20:09:15,159 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 20:09:15,196 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 129 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:09:15,204 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 [2019-11-19 20:09:15,206 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:15,206 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:09:15,206 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:09:15,206 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:09:15,207 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:09:15,208 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 129 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:15,212 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 130 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:09:15,221 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 [2019-11-19 20:09:15,223 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:15,223 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:09:15,223 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:09:15,223 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:09:15,225 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:09:15,225 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 130 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:15,230 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 131 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:09:15,240 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 [2019-11-19 20:09:15,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 20:09:15,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 20:09:15,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 20:09:15,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 20:09:15,252 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 20:09:15,252 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 131 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:15,280 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 20:09:15,368 INFO L443 ModelExtractionUtils]: Simplification made 26 calls to the SMT solver. [2019-11-19 20:09:15,368 INFO L444 ModelExtractionUtils]: 16 out of 55 variables were initially zero. Simplification set additionally 36 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 132 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-19 20:09:15,373 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 132 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:09:15,375 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-19 20:09:15,376 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 20:09:15,376 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc9.base)_7, ULTIMATE.start_cstrpbrk_~scanp~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc9.base)_7 - 1*ULTIMATE.start_cstrpbrk_~scanp~0.offset Supporting invariants [] [2019-11-19 20:09:15,566 INFO L297 tatePredicateManager]: 37 out of 40 supporting invariants were superfluous and have been removed [2019-11-19 20:09:15,573 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-19 20:09:15,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:09:15,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:09:15,626 INFO L255 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-19 20:09:15,627 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:09:15,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:09:15,661 WARN L253 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-19 20:09:15,662 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:09:15,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:09:15,689 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2019-11-19 20:09:15,689 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 50 transitions. cyclomatic complexity: 13 Second operand 5 states. [2019-11-19 20:09:15,735 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 50 transitions. cyclomatic complexity: 13. Second operand 5 states. Result 58 states and 70 transitions. Complement of second has 7 states. [2019-11-19 20:09:15,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-19 20:09:15,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-19 20:09:15,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 23 transitions. [2019-11-19 20:09:15,736 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 30 letters. Loop has 3 letters. [2019-11-19 20:09:15,737 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:09:15,737 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-19 20:09:15,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:09:15,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:09:15,794 INFO L255 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-19 20:09:15,795 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:09:15,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:09:15,839 WARN L253 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-19 20:09:15,839 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:09:15,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:09:15,863 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.3 stem predicates 2 loop predicates [2019-11-19 20:09:15,863 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 50 transitions. cyclomatic complexity: 13 Second operand 5 states. [2019-11-19 20:09:15,921 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 50 transitions. cyclomatic complexity: 13. Second operand 5 states. Result 60 states and 72 transitions. Complement of second has 7 states. [2019-11-19 20:09:15,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-19 20:09:15,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-19 20:09:15,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2019-11-19 20:09:15,922 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 30 letters. Loop has 3 letters. [2019-11-19 20:09:15,923 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:09:15,923 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-19 20:09:15,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:09:15,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:09:15,979 INFO L255 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-19 20:09:15,980 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:09:16,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:09:16,009 WARN L253 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-19 20:09:16,009 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 20:09:16,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:09:16,027 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2019-11-19 20:09:16,028 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 50 transitions. cyclomatic complexity: 13 Second operand 5 states. [2019-11-19 20:09:16,074 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 50 transitions. cyclomatic complexity: 13. Second operand 5 states. Result 54 states and 64 transitions. Complement of second has 6 states. [2019-11-19 20:09:16,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-19 20:09:16,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-19 20:09:16,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 28 transitions. [2019-11-19 20:09:16,076 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 30 letters. Loop has 3 letters. [2019-11-19 20:09:16,076 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:09:16,077 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 33 letters. Loop has 3 letters. [2019-11-19 20:09:16,077 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:09:16,077 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 30 letters. Loop has 6 letters. [2019-11-19 20:09:16,077 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 20:09:16,077 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 64 transitions. [2019-11-19 20:09:16,078 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 20:09:16,078 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 0 states and 0 transitions. [2019-11-19 20:09:16,078 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-19 20:09:16,078 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-19 20:09:16,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-19 20:09:16,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 20:09:16,079 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 20:09:16,079 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 20:09:16,079 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 20:09:16,079 INFO L424 BuchiCegarLoop]: ======== Iteration 14============ [2019-11-19 20:09:16,079 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-19 20:09:16,079 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-19 20:09:16,079 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-19 20:09:16,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 08:09:16 BoogieIcfgContainer [2019-11-19 20:09:16,085 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 20:09:16,085 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 20:09:16,085 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 20:09:16,086 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 20:09:16,086 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:08:23" (3/4) ... [2019-11-19 20:09:16,090 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 20:09:16,090 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 20:09:16,091 INFO L168 Benchmark]: Toolchain (without parser) took 53870.52 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 536.9 MB). Free memory was 961.7 MB in the beginning and 1.2 GB in the end (delta: -238.0 MB). Peak memory consumption was 298.8 MB. Max. memory is 11.5 GB. [2019-11-19 20:09:16,091 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 20:09:16,092 INFO L168 Benchmark]: CACSL2BoogieTranslator took 612.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -176.3 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2019-11-19 20:09:16,092 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.42 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: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. [2019-11-19 20:09:16,092 INFO L168 Benchmark]: Boogie Preprocessor took 31.03 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. [2019-11-19 20:09:16,092 INFO L168 Benchmark]: RCFGBuilder took 430.59 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: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. [2019-11-19 20:09:16,093 INFO L168 Benchmark]: BuchiAutomizer took 52737.63 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 387.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -100.3 MB). Peak memory consumption was 287.1 MB. Max. memory is 11.5 GB. [2019-11-19 20:09:16,093 INFO L168 Benchmark]: Witness Printer took 4.39 ms. Allocated memory is still 1.6 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 20:09:16,095 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 612.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -176.3 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.42 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: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.03 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 430.59 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: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 52737.63 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 387.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -100.3 MB). Peak memory consumption was 287.1 MB. Max. memory is 11.5 GB. * Witness Printer took 4.39 ms. Allocated memory is still 1.6 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - 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 13 terminating modules (6 trivial, 5 deterministic, 2 nondeterministic). One deterministic module has affine ranking function length1 + -1 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * i + length2 and consists of 4 locations. One deterministic module has affine ranking function -1 * s1 + unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] and consists of 4 locations. One deterministic module has affine ranking function unknown-#length-unknown[nondetString1] + -1 * scanp and consists of 12 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] + -1 * scanp and consists of 5 locations. One nondeterministic module has affine ranking function s1 + -1 * scanp and consists of 13 locations. One nondeterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] + -1 * scanp and consists of 5 locations. 6 modules have a trivial ranking function, the largest among these consists of 17 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 52.6s and 14 iterations. TraceHistogramMax:3. Analysis of lassos took 40.7s. Construction of modules took 1.1s. Büchi inclusion checks took 10.5s. Highest rank in rank-based complementation 3. Minimization of det autom 6. Minimization of nondet autom 7. Automata minimization 0.0s AutomataMinimizationTime, 12 MinimizatonAttempts, 60 StatesRemovedByMinimization, 10 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 42 states and ocurred in iteration 12. Nontrivial modules had stage [5, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 268 SDtfs, 543 SDslu, 784 SDs, 0 SdLazy, 964 SolverSat, 142 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc3 concLT0 SILN0 SILU3 SILI0 SILT0 lasso7 LassoPreprocessingBenchmarks: Lassos: inital349 mio100 ax106 hnf99 lsp90 ukn56 mio100 lsp39 div100 bol100 ite100 ukn100 eq188 hnf87 smp95 dnf206 smp96 tf100 neg95 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 75ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 2 DisjunctsLoop: 4 SupportingInvariants: 8 MotzkinApplications: 56 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...