./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-15/array07_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-15/array07_alloca.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 77498d00b446eec99f943fd8f68173cd9df2461a ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 14:28:57,864 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 14:28:57,865 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 14:28:57,883 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 14:28:57,884 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 14:28:57,888 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 14:28:57,889 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 14:28:57,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 14:28:57,896 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 14:28:57,898 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 14:28:57,899 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 14:28:57,899 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 14:28:57,899 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 14:28:57,900 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 14:28:57,901 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 14:28:57,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 14:28:57,902 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 14:28:57,902 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 14:28:57,904 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 14:28:57,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 14:28:57,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 14:28:57,911 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 14:28:57,913 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 14:28:57,914 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 14:28:57,921 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 14:28:57,921 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 14:28:57,922 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 14:28:57,922 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 14:28:57,922 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 14:28:57,923 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 14:28:57,923 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 14:28:57,924 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 14:28:57,924 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 14:28:57,924 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 14:28:57,925 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 14:28:57,925 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 14:28:57,926 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 14:28:57,926 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 14:28:57,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 14:28:57,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 14:28:57,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 14:28:57,933 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-08-27 14:28:57,965 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 14:28:57,966 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 14:28:57,966 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 14:28:57,966 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 14:28:57,968 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 14:28:57,968 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 14:28:57,968 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 14:28:57,968 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 14:28:57,968 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 14:28:57,968 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 14:28:57,969 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 14:28:57,969 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 14:28:57,969 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 14:28:57,969 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 14:28:57,969 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 14:28:57,969 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 14:28:57,969 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 14:28:57,969 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 14:28:57,969 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 14:28:57,970 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 14:28:57,975 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 14:28:57,976 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 14:28:57,976 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 14:28:57,976 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 14:28:57,976 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 14:28:57,976 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 14:28:57,976 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 14:28:57,976 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 14:28:57,976 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 14:28:57,977 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 14:28:57,977 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77498d00b446eec99f943fd8f68173cd9df2461a [2021-08-27 14:28:58,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 14:28:58,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 14:28:58,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 14:28:58,211 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 14:28:58,211 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 14:28:58,212 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-15/array07_alloca.i [2021-08-27 14:28:58,255 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03aa7af87/903cd968edb1430f8666531061706f60/FLAG5a5e484e1 [2021-08-27 14:28:58,653 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 14:28:58,653 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-15/array07_alloca.i [2021-08-27 14:28:58,659 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03aa7af87/903cd968edb1430f8666531061706f60/FLAG5a5e484e1 [2021-08-27 14:28:58,667 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03aa7af87/903cd968edb1430f8666531061706f60 [2021-08-27 14:28:58,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 14:28:58,669 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 14:28:58,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 14:28:58,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 14:28:58,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 14:28:58,673 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 02:28:58" (1/1) ... [2021-08-27 14:28:58,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@515993b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:28:58, skipping insertion in model container [2021-08-27 14:28:58,674 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 02:28:58" (1/1) ... [2021-08-27 14:28:58,678 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 14:28:58,694 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 14:28:58,859 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 14:28:58,869 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 14:28:58,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 14:28:58,954 INFO L208 MainTranslator]: Completed translation [2021-08-27 14:28:58,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:28:58 WrapperNode [2021-08-27 14:28:58,954 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 14:28:58,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 14:28:58,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 14:28:58,955 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 14:28:58,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:28:58" (1/1) ... [2021-08-27 14:28:58,976 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:28:58" (1/1) ... [2021-08-27 14:28:58,991 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 14:28:58,992 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 14:28:58,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 14:28:58,992 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 14:28:58,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:28:58" (1/1) ... [2021-08-27 14:28:58,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:28:58" (1/1) ... [2021-08-27 14:28:59,001 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:28:58" (1/1) ... [2021-08-27 14:28:59,001 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:28:58" (1/1) ... [2021-08-27 14:28:59,010 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:28:58" (1/1) ... [2021-08-27 14:28:59,013 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:28:58" (1/1) ... [2021-08-27 14:28:59,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:28:58" (1/1) ... [2021-08-27 14:28:59,018 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 14:28:59,019 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 14:28:59,019 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 14:28:59,019 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 14:28:59,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:28:58" (1/1) ... [2021-08-27 14:28:59,024 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:28:59,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:28:59,041 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:28:59,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-08-27 14:28:59,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-27 14:28:59,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-27 14:28:59,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 14:28:59,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 14:28:59,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 14:28:59,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 14:28:59,333 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 14:28:59,334 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-08-27 14:28:59,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:28:59 BoogieIcfgContainer [2021-08-27 14:28:59,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 14:28:59,349 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 14:28:59,349 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 14:28:59,352 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 14:28:59,352 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:28:59,352 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 02:28:58" (1/3) ... [2021-08-27 14:28:59,353 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@53475ecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 02:28:59, skipping insertion in model container [2021-08-27 14:28:59,353 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:28:59,353 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 02:28:58" (2/3) ... [2021-08-27 14:28:59,353 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@53475ecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 02:28:59, skipping insertion in model container [2021-08-27 14:28:59,354 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 14:28:59,354 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:28:59" (3/3) ... [2021-08-27 14:28:59,355 INFO L389 chiAutomizerObserver]: Analyzing ICFG array07_alloca.i [2021-08-27 14:28:59,390 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 14:28:59,390 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 14:28:59,391 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 14:28:59,391 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 14:28:59,391 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 14:28:59,391 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 14:28:59,391 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 14:28:59,391 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 14:28:59,400 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:28:59,418 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2021-08-27 14:28:59,418 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:28:59,418 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:28:59,422 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-08-27 14:28:59,422 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 14:28:59,422 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 14:28:59,422 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:28:59,424 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2021-08-27 14:28:59,424 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:28:59,424 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:28:59,424 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-08-27 14:28:59,424 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 14:28:59,429 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~nondet208, main_#t~post207, main_#t~mem209, main_#t~post210, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 12#L367true assume !(main_~length~0 < 1); 9#L367-2true call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 6#L369true assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 7#L370-3true [2021-08-27 14:28:59,429 INFO L793 eck$LassoCheckResult]: Loop: 7#L370-3true assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet208; 13#L370-2true main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 7#L370-3true [2021-08-27 14:28:59,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:28:59,433 INFO L82 PathProgramCache]: Analyzing trace with hash 28695753, now seen corresponding path program 1 times [2021-08-27 14:28:59,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:28:59,439 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028097603] [2021-08-27 14:28:59,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:28:59,440 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:28:59,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:28:59,510 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:28:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:28:59,543 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:28:59,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:28:59,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1667, now seen corresponding path program 1 times [2021-08-27 14:28:59,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:28:59,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377386401] [2021-08-27 14:28:59,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:28:59,554 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:28:59,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:28:59,570 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:28:59,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:28:59,579 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:28:59,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:28:59,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1806815563, now seen corresponding path program 1 times [2021-08-27 14:28:59,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:28:59,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600700040] [2021-08-27 14:28:59,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:28:59,583 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:28:59,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:28:59,603 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:28:59,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:28:59,627 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:28:59,874 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 14:28:59,875 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 14:28:59,875 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 14:28:59,875 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 14:28:59,875 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 14:28:59,875 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:28:59,875 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 14:28:59,875 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 14:28:59,875 INFO L133 ssoRankerPreferences]: Filename of dumped script: array07_alloca.i_Iteration1_Lasso [2021-08-27 14:28:59,875 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 14:28:59,875 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 14:28:59,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:28:59,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:28:59,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:28:59,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:28:59,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:28:59,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:28:59,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:28:59,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:28:59,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:29:00,186 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 14:29:00,189 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 14:29:00,190 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:29:00,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:29:00,191 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:29:00,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-08-27 14:29:00,193 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:29:00,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:29:00,200 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:29:00,200 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:29:00,200 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:29:00,200 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:29:00,202 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:29:00,202 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:29:00,217 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:29:00,234 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-08-27 14:29:00,235 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:29:00,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:29:00,237 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:29:00,247 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:29:00,254 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:29:00,254 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:29:00,255 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:29:00,255 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:29:00,255 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:29:00,255 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:29:00,255 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:29:00,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-08-27 14:29:00,267 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:29:00,287 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-08-27 14:29:00,287 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:29:00,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:29:00,288 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:29:00,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-08-27 14:29:00,291 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:29:00,297 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:29:00,298 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:29:00,298 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:29:00,298 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:29:00,300 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:29:00,300 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:29:00,315 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:29:00,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-08-27 14:29:00,337 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:29:00,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:29:00,338 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:29:00,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-08-27 14:29:00,341 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:29:00,348 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:29:00,348 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:29:00,348 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:29:00,348 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:29:00,356 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:29:00,356 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:29:00,380 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 14:29:00,425 INFO L443 ModelExtractionUtils]: Simplification made 15 calls to the SMT solver. [2021-08-27 14:29:00,425 INFO L444 ModelExtractionUtils]: 7 out of 22 variables were initially zero. Simplification set additionally 12 variables to zero. [2021-08-27 14:29:00,426 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:29:00,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:29:00,429 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:29:00,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-08-27 14:29:00,453 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 14:29:00,473 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-08-27 14:29:00,473 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 14:29:00,474 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~length~0) = -1*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~length~0 Supporting invariants [] [2021-08-27 14:29:00,492 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-08-27 14:29:00,498 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2021-08-27 14:29:00,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:29:00,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:29:00,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 14:29:00,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:29:00,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:29:00,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 14:29:00,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:29:00,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 14:29:00,589 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 [2021-08-27 14:29:00,590 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:29:00,630 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 40 transitions. Complement of second has 7 states. [2021-08-27 14:29:00,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-27 14:29:00,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:29:00,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2021-08-27 14:29:00,634 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 5 letters. Loop has 2 letters. [2021-08-27 14:29:00,635 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:29:00,635 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 7 letters. Loop has 2 letters. [2021-08-27 14:29:00,635 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:29:00,635 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 5 letters. Loop has 4 letters. [2021-08-27 14:29:00,635 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:29:00,636 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 40 transitions. [2021-08-27 14:29:00,640 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-27 14:29:00,642 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 10 states and 13 transitions. [2021-08-27 14:29:00,643 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-08-27 14:29:00,643 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-08-27 14:29:00,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2021-08-27 14:29:00,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 14:29:00,644 INFO L681 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-08-27 14:29:00,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2021-08-27 14:29:00,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-08-27 14:29:00,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:29:00,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2021-08-27 14:29:00,660 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-08-27 14:29:00,660 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-08-27 14:29:00,660 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 14:29:00,660 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2021-08-27 14:29:00,662 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-27 14:29:00,662 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:29:00,662 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:29:00,662 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 14:29:00,662 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-27 14:29:00,662 INFO L791 eck$LassoCheckResult]: Stem: 106#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 107#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~nondet208, main_#t~post207, main_#t~mem209, main_#t~post210, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 110#L367 assume !(main_~length~0 < 1); 104#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 105#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 108#L370-3 assume !(main_~i~0 < main_~length~0); 109#L370-4 main_~j~0 := 0; 103#L374-2 [2021-08-27 14:29:00,662 INFO L793 eck$LassoCheckResult]: Loop: 103#L374-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem209 := read~int(main_~arr~0.base, main_~arr~0.offset, 4);main_#t~post210 := main_#t~mem209;call write~int(main_#t~post210 - 1, main_~arr~0.base, main_~arr~0.offset, 4);main_~j~0 := main_~j~0 - main_#t~post210;havoc main_#t~mem209;havoc main_#t~post210; 103#L374-2 [2021-08-27 14:29:00,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:29:00,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1806815505, now seen corresponding path program 1 times [2021-08-27 14:29:00,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:29:00,663 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443502956] [2021-08-27 14:29:00,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:29:00,664 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:29:00,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:29:00,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 14:29:00,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 14:29:00,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443502956] [2021-08-27 14:29:00,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443502956] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 14:29:00,724 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 14:29:00,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-27 14:29:00,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603526959] [2021-08-27 14:29:00,725 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 14:29:00,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:29:00,726 INFO L82 PathProgramCache]: Analyzing trace with hash 68, now seen corresponding path program 1 times [2021-08-27 14:29:00,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:29:00,727 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963217191] [2021-08-27 14:29:00,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:29:00,727 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:29:00,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:29:00,736 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:29:00,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:29:00,745 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:29:00,792 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-08-27 14:29:00,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 14:29:00,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 14:29:00,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 14:29:00,816 INFO L87 Difference]: Start difference. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:29:00,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 14:29:00,833 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2021-08-27 14:29:00,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 14:29:00,834 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2021-08-27 14:29:00,834 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-27 14:29:00,835 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 13 transitions. [2021-08-27 14:29:00,835 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-08-27 14:29:00,835 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-08-27 14:29:00,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 13 transitions. [2021-08-27 14:29:00,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 14:29:00,835 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-08-27 14:29:00,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 13 transitions. [2021-08-27 14:29:00,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-08-27 14:29:00,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.2) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:29:00,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2021-08-27 14:29:00,836 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-08-27 14:29:00,836 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-08-27 14:29:00,837 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-27 14:29:00,837 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2021-08-27 14:29:00,837 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-08-27 14:29:00,837 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 14:29:00,837 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 14:29:00,837 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 14:29:00,837 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-08-27 14:29:00,838 INFO L791 eck$LassoCheckResult]: Stem: 132#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 133#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~nondet208, main_#t~post207, main_#t~mem209, main_#t~post210, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 138#L367 assume !(main_~length~0 < 1); 134#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 135#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 136#L370-3 assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet208; 139#L370-2 main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 140#L370-3 assume !(main_~i~0 < main_~length~0); 137#L370-4 main_~j~0 := 0; 131#L374-2 [2021-08-27 14:29:00,838 INFO L793 eck$LassoCheckResult]: Loop: 131#L374-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem209 := read~int(main_~arr~0.base, main_~arr~0.offset, 4);main_#t~post210 := main_#t~mem209;call write~int(main_#t~post210 - 1, main_~arr~0.base, main_~arr~0.offset, 4);main_~j~0 := main_~j~0 - main_#t~post210;havoc main_#t~mem209;havoc main_#t~post210; 131#L374-2 [2021-08-27 14:29:00,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:29:00,838 INFO L82 PathProgramCache]: Analyzing trace with hash 1182969107, now seen corresponding path program 1 times [2021-08-27 14:29:00,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:29:00,839 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039526080] [2021-08-27 14:29:00,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:29:00,839 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:29:00,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:29:00,844 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:29:00,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:29:00,851 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:29:00,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:29:00,851 INFO L82 PathProgramCache]: Analyzing trace with hash 68, now seen corresponding path program 2 times [2021-08-27 14:29:00,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:29:00,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117846719] [2021-08-27 14:29:00,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:29:00,852 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:29:00,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:29:00,854 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:29:00,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:29:00,859 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:29:00,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:29:00,859 INFO L82 PathProgramCache]: Analyzing trace with hash -1982663310, now seen corresponding path program 1 times [2021-08-27 14:29:00,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 14:29:00,860 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108775750] [2021-08-27 14:29:00,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 14:29:00,860 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 14:29:00,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:29:00,875 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 14:29:00,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 14:29:00,892 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 14:29:01,118 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 14:29:01,118 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 14:29:01,118 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 14:29:01,118 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 14:29:01,118 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 14:29:01,118 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:29:01,118 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 14:29:01,118 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 14:29:01,118 INFO L133 ssoRankerPreferences]: Filename of dumped script: array07_alloca.i_Iteration3_Lasso [2021-08-27 14:29:01,118 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 14:29:01,118 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 14:29:01,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:29:01,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:29:01,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:29:01,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:29:01,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:29:01,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:29:01,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:29:01,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:29:01,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 14:29:01,455 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 14:29:01,455 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 14:29:01,455 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:29:01,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:29:01,456 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:29:01,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-08-27 14:29:01,458 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:29:01,464 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:29:01,464 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:29:01,464 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:29:01,465 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:29:01,465 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:29:01,465 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:29:01,465 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:29:01,472 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:29:01,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-08-27 14:29:01,488 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:29:01,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:29:01,488 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:29:01,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-08-27 14:29:01,490 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:29:01,497 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:29:01,497 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:29:01,497 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:29:01,497 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:29:01,497 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:29:01,500 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:29:01,501 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:29:01,515 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:29:01,534 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-08-27 14:29:01,535 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:29:01,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:29:01,535 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:29:01,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-08-27 14:29:01,538 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:29:01,544 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:29:01,544 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:29:01,544 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:29:01,544 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:29:01,546 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:29:01,546 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:29:01,557 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:29:01,575 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-08-27 14:29:01,575 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:29:01,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:29:01,576 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:29:01,591 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:29:01,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-08-27 14:29:01,597 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:29:01,598 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:29:01,598 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:29:01,598 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:29:01,598 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:29:01,598 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:29:01,598 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:29:01,604 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:29:01,621 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-08-27 14:29:01,621 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:29:01,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:29:01,621 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:29:01,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-08-27 14:29:01,623 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:29:01,629 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:29:01,629 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:29:01,630 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:29:01,630 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:29:01,630 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:29:01,630 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:29:01,630 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:29:01,635 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:29:01,650 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-08-27 14:29:01,651 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:29:01,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:29:01,651 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:29:01,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-08-27 14:29:01,654 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:29:01,659 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:29:01,660 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:29:01,660 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:29:01,660 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:29:01,660 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:29:01,661 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:29:01,661 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:29:01,682 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:29:01,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-08-27 14:29:01,697 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:29:01,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:29:01,698 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:29:01,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-08-27 14:29:01,701 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:29:01,707 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:29:01,708 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:29:01,708 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:29:01,708 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:29:01,712 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:29:01,712 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:29:01,720 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:29:01,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-08-27 14:29:01,737 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:29:01,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:29:01,738 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:29:01,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-08-27 14:29:01,740 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:29:01,747 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:29:01,747 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:29:01,747 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:29:01,747 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:29:01,766 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:29:01,766 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:29:01,780 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:29:01,797 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-08-27 14:29:01,797 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:29:01,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:29:01,805 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:29:01,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-08-27 14:29:01,807 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:29:01,813 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:29:01,814 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:29:01,814 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:29:01,814 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:29:01,815 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:29:01,815 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:29:01,825 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:29:01,839 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-08-27 14:29:01,840 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:29:01,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:29:01,840 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:29:01,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-08-27 14:29:01,843 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:29:01,849 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:29:01,850 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:29:01,850 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:29:01,850 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:29:01,861 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:29:01,861 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:29:01,876 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:29:01,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-08-27 14:29:01,898 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:29:01,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:29:01,899 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:29:01,911 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:29:01,917 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:29:01,917 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:29:01,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:29:01,918 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:29:01,920 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 14:29:01,920 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 14:29:01,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-08-27 14:29:01,936 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:29:01,954 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-08-27 14:29:01,954 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:29:01,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:29:01,955 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:29:01,971 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:29:01,977 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:29:01,977 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:29:01,977 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:29:01,977 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:29:01,977 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 14:29:01,978 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 14:29:01,978 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:29:01,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-08-27 14:29:01,993 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:29:02,009 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-08-27 14:29:02,009 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-08-27 14:29:02,009 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:29:02,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:29:02,010 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:29:02,018 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:29:02,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-08-27 14:29:02,025 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:29:02,026 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:29:02,026 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:29:02,026 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:29:02,026 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-08-27 14:29:02,026 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-08-27 14:29:02,026 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:29:02,027 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:29:02,042 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-08-27 14:29:02,043 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:29:02,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:29:02,043 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:29:02,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-08-27 14:29:02,047 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:29:02,053 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:29:02,053 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:29:02,053 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:29:02,053 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:29:02,053 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-08-27 14:29:02,053 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-08-27 14:29:02,053 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:29:02,054 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:29:02,069 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-08-27 14:29:02,070 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:29:02,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:29:02,073 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:29:02,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-08-27 14:29:02,082 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:29:02,087 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:29:02,087 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:29:02,087 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:29:02,087 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-08-27 14:29:02,093 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-08-27 14:29:02,093 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-08-27 14:29:02,101 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:29:02,117 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-08-27 14:29:02,117 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:29:02,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:29:02,118 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:29:02,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-08-27 14:29:02,120 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:29:02,126 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:29:02,126 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:29:02,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:29:02,127 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:29:02,127 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-08-27 14:29:02,127 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-08-27 14:29:02,127 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:29:02,140 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:29:02,156 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-08-27 14:29:02,156 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:29:02,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:29:02,157 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:29:02,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-08-27 14:29:02,159 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:29:02,165 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:29:02,165 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:29:02,165 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:29:02,165 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:29:02,165 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-08-27 14:29:02,166 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-08-27 14:29:02,166 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:29:02,169 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:29:02,184 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-08-27 14:29:02,184 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:29:02,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:29:02,189 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:29:02,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-08-27 14:29:02,192 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:29:02,197 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:29:02,197 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 14:29:02,197 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:29:02,197 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:29:02,197 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-08-27 14:29:02,198 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-08-27 14:29:02,198 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 14:29:02,199 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:29:02,214 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-08-27 14:29:02,214 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:29:02,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:29:02,215 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:29:02,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-08-27 14:29:02,217 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:29:02,222 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:29:02,222 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:29:02,223 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:29:02,223 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-08-27 14:29:02,225 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-08-27 14:29:02,225 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-08-27 14:29:02,248 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 14:29:02,265 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-08-27 14:29:02,265 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:29:02,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:29:02,273 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:29:02,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-08-27 14:29:02,275 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 14:29:02,282 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 14:29:02,282 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 14:29:02,282 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 14:29:02,282 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-08-27 14:29:02,296 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-08-27 14:29:02,296 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-08-27 14:29:02,316 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 14:29:02,389 INFO L443 ModelExtractionUtils]: Simplification made 40 calls to the SMT solver. [2021-08-27 14:29:02,389 INFO L444 ModelExtractionUtils]: 17 out of 51 variables were initially zero. Simplification set additionally 29 variables to zero. [2021-08-27 14:29:02,389 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 14:29:02,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 14:29:02,390 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 14:29:02,417 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 14:29:02,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-08-27 14:29:02,434 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 3. [2021-08-27 14:29:02,434 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 14:29:02,434 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 2*v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0.base) ULTIMATE.start_main_~arr~0.offset)_1 + 1*ULTIMATE.start_main_~length~0 f1 = -2*ULTIMATE.start_main_~j~0 + 2*ULTIMATE.start_main_~length~0 Supporting invariants [] [2021-08-27 14:29:02,453 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-08-27 14:29:02,461 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2021-08-27 14:29:02,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 14:29:02,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:29:02,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 14:29:02,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:29:02,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 14:29:02,514 WARN L261 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 14:29:02,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 14:29:02,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 14:29:02,515 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-08-27 14:29:02,515 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:29:02,519 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 13 transitions. Complement of second has 2 states. [2021-08-27 14:29:02,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2021-08-27 14:29:02,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 14:29:02,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 11 transitions. [2021-08-27 14:29:02,520 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 11 transitions. Stem has 9 letters. Loop has 1 letters. [2021-08-27 14:29:02,520 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:29:02,520 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 11 transitions. Stem has 10 letters. Loop has 1 letters. [2021-08-27 14:29:02,520 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:29:02,520 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 11 transitions. Stem has 9 letters. Loop has 2 letters. [2021-08-27 14:29:02,521 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 14:29:02,521 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2021-08-27 14:29:02,521 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 14:29:02,521 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2021-08-27 14:29:02,521 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-27 14:29:02,521 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-27 14:29:02,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-27 14:29:02,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 14:29:02,522 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 14:29:02,522 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 14:29:02,522 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 14:29:02,522 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-08-27 14:29:02,522 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-27 14:29:02,522 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 14:29:02,522 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-27 14:29:02,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 02:29:02 BoogieIcfgContainer [2021-08-27 14:29:02,526 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 14:29:02,526 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 14:29:02,527 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 14:29:02,527 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 14:29:02,527 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 02:28:59" (3/4) ... [2021-08-27 14:29:02,529 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 14:29:02,529 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 14:29:02,530 INFO L168 Benchmark]: Toolchain (without parser) took 3860.01 ms. Allocated memory was 52.4 MB in the beginning and 100.7 MB in the end (delta: 48.2 MB). Free memory was 28.6 MB in the beginning and 26.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 49.3 MB. Max. memory is 16.1 GB. [2021-08-27 14:29:02,530 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 52.4 MB. Free memory was 34.7 MB in the beginning and 34.7 MB in the end (delta: 33.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 14:29:02,530 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.20 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 28.3 MB in the beginning and 46.5 MB in the end (delta: -18.2 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2021-08-27 14:29:02,531 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.51 ms. Allocated memory is still 69.2 MB. Free memory was 46.3 MB in the beginning and 44.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 14:29:02,531 INFO L168 Benchmark]: Boogie Preprocessor took 26.04 ms. Allocated memory is still 69.2 MB. Free memory was 44.7 MB in the beginning and 43.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 14:29:02,531 INFO L168 Benchmark]: RCFGBuilder took 329.65 ms. Allocated memory is still 69.2 MB. Free memory was 43.5 MB in the beginning and 45.6 MB in the end (delta: -2.1 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2021-08-27 14:29:02,532 INFO L168 Benchmark]: BuchiAutomizer took 3176.87 ms. Allocated memory was 69.2 MB in the beginning and 100.7 MB in the end (delta: 31.5 MB). Free memory was 45.6 MB in the beginning and 26.9 MB in the end (delta: 18.7 MB). Peak memory consumption was 49.9 MB. Max. memory is 16.1 GB. [2021-08-27 14:29:02,532 INFO L168 Benchmark]: Witness Printer took 2.38 ms. Allocated memory is still 100.7 MB. Free memory is still 26.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 14:29:02,533 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 52.4 MB. Free memory was 34.7 MB in the beginning and 34.7 MB in the end (delta: 33.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 284.20 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 28.3 MB in the beginning and 46.5 MB in the end (delta: -18.2 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.51 ms. Allocated memory is still 69.2 MB. Free memory was 46.3 MB in the beginning and 44.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.04 ms. Allocated memory is still 69.2 MB. Free memory was 44.7 MB in the beginning and 43.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 329.65 ms. Allocated memory is still 69.2 MB. Free memory was 43.5 MB in the beginning and 45.6 MB in the end (delta: -2.1 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3176.87 ms. Allocated memory was 69.2 MB in the beginning and 100.7 MB in the end (delta: 31.5 MB). Free memory was 45.6 MB in the beginning and 26.9 MB in the end (delta: 18.7 MB). Peak memory consumption was 49.9 MB. Max. memory is 16.1 GB. * Witness Printer took 2.38 ms. Allocated memory is still 100.7 MB. Free memory is still 26.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function length + -1 * i and consists of 5 locations. One deterministic module has 2-nested ranking function (if 2 * unknown-#memory_int-unknown[arr][arr] + length > 0 then 1 else 0), (if 2 * unknown-#memory_int-unknown[arr][arr] + length > 0 then 2 * unknown-#memory_int-unknown[arr][arr] + length else 2 * length + -2 * j) and consists of 2 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 8.7ms AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 10 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 29 SDtfs, 33 SDslu, 10 SDs, 0 SdLazy, 26 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 21.0ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital112 mio100 ax100 hnf99 lsp94 ukn85 mio100 lsp69 div100 bol100 ite100 ukn100 eq177 hnf90 smp100 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 31ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 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! [2021-08-27 14:29:02,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-08-27 14:29:02,768 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...