./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-15/count_up_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3a877d22 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/count_up_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 f12e3955ea6fcca41dc2c68fc8e1d5a42d0369455d727c76f4dfb832d3060ba5 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 17:04:51,823 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 17:04:51,825 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 17:04:51,857 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 17:04:51,861 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 17:04:51,865 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 17:04:51,867 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 17:04:51,872 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 17:04:51,874 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 17:04:51,879 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 17:04:51,879 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 17:04:51,881 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 17:04:51,881 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 17:04:51,883 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 17:04:51,884 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 17:04:51,888 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 17:04:51,889 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 17:04:51,890 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 17:04:51,891 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 17:04:51,894 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 17:04:51,897 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 17:04:51,912 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 17:04:51,913 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 17:04:51,913 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 17:04:51,914 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 17:04:51,915 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 17:04:51,915 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 17:04:51,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 17:04:51,916 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 17:04:51,916 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 17:04:51,916 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 17:04:51,917 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 17:04:51,917 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 17:04:51,918 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 17:04:51,918 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 17:04:51,919 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 17:04:51,919 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 17:04:51,919 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 17:04:51,919 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 17:04:51,920 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 17:04:51,920 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 17:04:51,921 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-15 17:04:51,952 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 17:04:51,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 17:04:51,954 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 17:04:51,954 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 17:04:51,955 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 17:04:51,955 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 17:04:51,955 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 17:04:51,955 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-15 17:04:51,955 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-15 17:04:51,956 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-15 17:04:51,956 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-15 17:04:51,957 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-15 17:04:51,957 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-15 17:04:51,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 17:04:51,957 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 17:04:51,957 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 17:04:51,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 17:04:51,958 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-15 17:04:51,958 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-15 17:04:51,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-15 17:04:51,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 17:04:51,958 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-15 17:04:51,958 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 17:04:51,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-15 17:04:51,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 17:04:51,960 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 17:04:51,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 17:04:51,960 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 17:04:51,961 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 17:04:51,961 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-15 17:04:51,962 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f12e3955ea6fcca41dc2c68fc8e1d5a42d0369455d727c76f4dfb832d3060ba5 [2021-12-15 17:04:52,175 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 17:04:52,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 17:04:52,195 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 17:04:52,196 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 17:04:52,196 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 17:04:52,197 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-15/count_up_alloca.i [2021-12-15 17:04:52,273 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8507bb981/e241f219e5da4ea5913840aa8cffd484/FLAG471b9e882 [2021-12-15 17:04:52,671 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 17:04:52,671 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-15/count_up_alloca.i [2021-12-15 17:04:52,684 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8507bb981/e241f219e5da4ea5913840aa8cffd484/FLAG471b9e882 [2021-12-15 17:04:53,060 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8507bb981/e241f219e5da4ea5913840aa8cffd484 [2021-12-15 17:04:53,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 17:04:53,064 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 17:04:53,065 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 17:04:53,065 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 17:04:53,084 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 17:04:53,085 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:04:53" (1/1) ... [2021-12-15 17:04:53,085 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@128d8c0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:04:53, skipping insertion in model container [2021-12-15 17:04:53,086 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:04:53" (1/1) ... [2021-12-15 17:04:53,091 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 17:04:53,129 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 17:04:53,370 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:04:53,376 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 17:04:53,405 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:04:53,428 INFO L208 MainTranslator]: Completed translation [2021-12-15 17:04:53,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:04:53 WrapperNode [2021-12-15 17:04:53,429 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 17:04:53,430 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 17:04:53,430 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 17:04:53,430 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 17:04:53,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:04:53" (1/1) ... [2021-12-15 17:04:53,444 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:04:53" (1/1) ... [2021-12-15 17:04:53,458 INFO L137 Inliner]: procedures = 151, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 60 [2021-12-15 17:04:53,458 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 17:04:53,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 17:04:53,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 17:04:53,459 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 17:04:53,464 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:04:53" (1/1) ... [2021-12-15 17:04:53,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:04:53" (1/1) ... [2021-12-15 17:04:53,466 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:04:53" (1/1) ... [2021-12-15 17:04:53,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:04:53" (1/1) ... [2021-12-15 17:04:53,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:04:53" (1/1) ... [2021-12-15 17:04:53,478 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:04:53" (1/1) ... [2021-12-15 17:04:53,479 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:04:53" (1/1) ... [2021-12-15 17:04:53,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 17:04:53,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 17:04:53,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 17:04:53,484 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 17:04:53,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:04:53" (1/1) ... [2021-12-15 17:04:53,493 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:53,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:53,512 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) [2021-12-15 17:04:53,526 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 [2021-12-15 17:04:53,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 17:04:53,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 17:04:53,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 17:04:53,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 17:04:53,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 17:04:53,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 17:04:53,610 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 17:04:53,611 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 17:04:53,720 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 17:04:53,724 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 17:04:53,725 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-15 17:04:53,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:04:53 BoogieIcfgContainer [2021-12-15 17:04:53,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 17:04:53,730 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-15 17:04:53,730 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-15 17:04:53,743 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-15 17:04:53,760 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:04:53,760 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.12 05:04:53" (1/3) ... [2021-12-15 17:04:53,761 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ecdad16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:04:53, skipping insertion in model container [2021-12-15 17:04:53,761 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:04:53,762 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:04:53" (2/3) ... [2021-12-15 17:04:53,762 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ecdad16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:04:53, skipping insertion in model container [2021-12-15 17:04:53,762 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:04:53,762 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:04:53" (3/3) ... [2021-12-15 17:04:53,763 INFO L388 chiAutomizerObserver]: Analyzing ICFG count_up_alloca.i [2021-12-15 17:04:53,800 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-15 17:04:53,801 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-15 17:04:53,801 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-15 17:04:53,801 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-15 17:04:53,801 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-15 17:04:53,801 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-15 17:04:53,801 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-15 17:04:53,802 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-15 17:04:53,815 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 17 states have internal predecessors, (26), 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) [2021-12-15 17:04:53,834 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-12-15 17:04:53,834 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:04:53,834 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:04:53,839 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-15 17:04:53,839 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-15 17:04:53,839 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-15 17:04:53,840 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 17 states have internal predecessors, (26), 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) [2021-12-15 17:04:53,842 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2021-12-15 17:04:53,842 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:04:53,842 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:04:53,843 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-15 17:04:53,843 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-15 17:04:53,849 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~nondet206#1, main_#t~malloc207#1.base, main_#t~malloc207#1.offset, main_#t~nondet209#1, main_#t~post208#1, main_#t~mem212#1, main_#t~post213#1, main_#t~mem211#1, main_#t~post210#1, main_~i~0#1, main_~j~0#1, main_~val~0#1, main_~limit~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~val~0#1;main_~limit~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet206#1;havoc main_#t~nondet206#1; 7#L369true assume !(main_~length~0#1 < 1); 12#L369-2true call main_#t~malloc207#1.base, main_#t~malloc207#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc207#1.base, main_#t~malloc207#1.offset; 15#L371true assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 18#L372-3true [2021-12-15 17:04:53,849 INFO L793 eck$LassoCheckResult]: Loop: 18#L372-3true assume !!(main_~i~0#1 < main_~length~0#1);main_~val~0#1 := main_#t~nondet209#1;havoc main_#t~nondet209#1; 20#L374true assume main_~val~0#1 > main_~limit~0#1;main_~val~0#1 := main_~limit~0#1; 4#L374-2true call write~int(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 17#L372-2true main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 18#L372-3true [2021-12-15 17:04:53,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:04:53,857 INFO L85 PathProgramCache]: Analyzing trace with hash 28695753, now seen corresponding path program 1 times [2021-12-15 17:04:53,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:04:53,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123202162] [2021-12-15 17:04:53,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:04:53,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:04:53,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:04:53,966 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:04:53,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:04:54,004 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:04:54,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:04:54,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1603878, now seen corresponding path program 1 times [2021-12-15 17:04:54,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:04:54,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053881093] [2021-12-15 17:04:54,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:04:54,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:04:54,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:04:54,028 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:04:54,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:04:54,045 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:04:54,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:04:54,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1182970350, now seen corresponding path program 1 times [2021-12-15 17:04:54,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:04:54,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792233129] [2021-12-15 17:04:54,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:04:54,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:04:54,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:04:54,064 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:04:54,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:04:54,086 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:04:54,348 INFO L210 LassoAnalysis]: Preferences: [2021-12-15 17:04:54,350 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-15 17:04:54,350 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-15 17:04:54,350 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-15 17:04:54,351 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-15 17:04:54,351 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:54,351 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-15 17:04:54,351 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-15 17:04:54,351 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_alloca.i_Iteration1_Lasso [2021-12-15 17:04:54,351 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-15 17:04:54,352 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-15 17:04:54,368 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:54,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:54,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:54,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:54,381 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:54,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:54,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:54,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:54,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:54,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:54,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:54,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:54,662 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-15 17:04:54,664 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-15 17:04:54,666 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:54,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:54,678 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) [2021-12-15 17:04:54,679 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 [2021-12-15 17:04:54,680 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 [2021-12-15 17:04:54,694 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:54,694 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:54,695 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:54,695 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:54,699 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:04:54,699 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:04:54,712 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:04:54,732 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 [2021-12-15 17:04:54,733 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:54,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:54,734 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) [2021-12-15 17:04:54,743 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 [2021-12-15 17:04:54,744 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 [2021-12-15 17:04:54,751 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:54,751 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:04:54,752 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:54,752 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:54,752 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:54,753 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:04:54,754 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:04:54,767 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:04:54,786 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 [2021-12-15 17:04:54,786 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:54,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:54,788 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) [2021-12-15 17:04:54,790 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 [2021-12-15 17:04:54,791 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 [2021-12-15 17:04:54,798 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:54,798 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:04:54,798 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:54,798 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:54,798 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:54,799 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:04:54,799 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:04:54,811 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:04:54,837 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 [2021-12-15 17:04:54,838 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:54,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:54,839 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) [2021-12-15 17:04:54,843 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 [2021-12-15 17:04:54,850 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:54,850 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:04:54,850 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:54,850 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:54,851 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:54,851 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:04:54,851 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:04:54,854 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 [2021-12-15 17:04:54,862 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:04:54,881 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 [2021-12-15 17:04:54,881 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:54,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:54,882 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) [2021-12-15 17:04:54,883 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 [2021-12-15 17:04:54,885 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 [2021-12-15 17:04:54,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:54,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:54,892 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:54,892 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:54,895 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:04:54,895 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:04:54,915 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:04:54,933 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 [2021-12-15 17:04:54,933 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:54,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:54,935 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) [2021-12-15 17:04:54,935 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 [2021-12-15 17:04:54,936 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 [2021-12-15 17:04:54,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:54,944 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:04:54,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:54,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:54,944 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:54,944 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:04:54,944 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:04:54,962 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:04:54,980 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 [2021-12-15 17:04:54,981 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:54,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:54,982 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) [2021-12-15 17:04:54,984 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 [2021-12-15 17:04:54,984 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 [2021-12-15 17:04:54,991 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:54,991 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:54,991 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:54,991 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:54,996 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:04:54,996 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:04:55,019 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:04:55,037 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 [2021-12-15 17:04:55,037 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:55,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:55,038 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) [2021-12-15 17:04:55,039 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 [2021-12-15 17:04:55,040 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 [2021-12-15 17:04:55,046 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:55,046 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:55,046 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:55,046 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:55,060 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:04:55,060 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:04:55,075 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:04:55,094 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 [2021-12-15 17:04:55,094 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:55,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:55,096 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) [2021-12-15 17:04:55,097 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 [2021-12-15 17:04:55,098 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 [2021-12-15 17:04:55,104 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:55,105 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:04:55,105 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:55,105 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:55,105 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:55,106 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:04:55,106 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:04:55,117 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:04:55,133 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-15 17:04:55,133 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:55,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:55,134 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) [2021-12-15 17:04:55,135 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 [2021-12-15 17:04:55,136 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 [2021-12-15 17:04:55,143 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:55,143 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:55,143 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:55,143 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:55,148 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:04:55,149 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:04:55,165 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-15 17:04:55,248 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2021-12-15 17:04:55,249 INFO L444 ModelExtractionUtils]: 9 out of 22 variables were initially zero. Simplification set additionally 9 variables to zero. [2021-12-15 17:04:55,250 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:55,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:55,286 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) [2021-12-15 17:04:55,304 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-15 17:04:55,317 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 [2021-12-15 17:04:55,323 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-15 17:04:55,324 INFO L513 LassoAnalysis]: Proved termination. [2021-12-15 17:04:55,324 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~arr~0#1.base)_1, ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~arr~0#1.offset) = 1*v_rep(select #length ULTIMATE.start_main_~arr~0#1.base)_1 - 4*ULTIMATE.start_main_~i~0#1 - 1*ULTIMATE.start_main_~arr~0#1.offset Supporting invariants [] [2021-12-15 17:04:55,342 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 [2021-12-15 17:04:55,349 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2021-12-15 17:04:55,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:04:55,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:04:55,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 17:04:55,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:04:55,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:04:55,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-15 17:04:55,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:04:55,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:04:55,479 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 [2021-12-15 17:04:55,480 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 18 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 17 states have internal predecessors, (26), 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 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-12-15 17:04:55,528 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 18 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 17 states have internal predecessors, (26), 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 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 43 states and 60 transitions. Complement of second has 7 states. [2021-12-15 17:04:55,529 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 [2021-12-15 17:04:55,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-12-15 17:04:55,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 40 transitions. [2021-12-15 17:04:55,536 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 40 transitions. Stem has 5 letters. Loop has 4 letters. [2021-12-15 17:04:55,537 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:04:55,537 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 40 transitions. Stem has 9 letters. Loop has 4 letters. [2021-12-15 17:04:55,538 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:04:55,538 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 40 transitions. Stem has 5 letters. Loop has 8 letters. [2021-12-15 17:04:55,538 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:04:55,539 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 60 transitions. [2021-12-15 17:04:55,544 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-15 17:04:55,547 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 15 states and 20 transitions. [2021-12-15 17:04:55,548 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-12-15 17:04:55,548 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-12-15 17:04:55,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 20 transitions. [2021-12-15 17:04:55,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:04:55,549 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2021-12-15 17:04:55,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 20 transitions. [2021-12-15 17:04:55,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-12-15 17:04:55,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 14 states have internal predecessors, (20), 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) [2021-12-15 17:04:55,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2021-12-15 17:04:55,566 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2021-12-15 17:04:55,566 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2021-12-15 17:04:55,566 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-15 17:04:55,566 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2021-12-15 17:04:55,568 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-15 17:04:55,568 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:04:55,569 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:04:55,569 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:04:55,569 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-15 17:04:55,569 INFO L791 eck$LassoCheckResult]: Stem: 129#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 130#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~nondet206#1, main_#t~malloc207#1.base, main_#t~malloc207#1.offset, main_#t~nondet209#1, main_#t~post208#1, main_#t~mem212#1, main_#t~post213#1, main_#t~mem211#1, main_#t~post210#1, main_~i~0#1, main_~j~0#1, main_~val~0#1, main_~limit~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~val~0#1;main_~limit~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet206#1;havoc main_#t~nondet206#1; 133#L369 assume !(main_~length~0#1 < 1); 134#L369-2 call main_#t~malloc207#1.base, main_#t~malloc207#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc207#1.base, main_#t~malloc207#1.offset; 137#L371 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 139#L372-3 assume !(main_~i~0#1 < main_~length~0#1); 138#L372-4 main_~j~0#1 := 0; 132#L379-3 [2021-12-15 17:04:55,569 INFO L793 eck$LassoCheckResult]: Loop: 132#L379-3 assume !!(main_~j~0#1 < main_~length~0#1); 135#L380-3 call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 136#L380-1 assume !(main_#t~mem211#1 < main_~limit~0#1);havoc main_#t~mem211#1; 131#L379-2 main_#t~post210#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post210#1;havoc main_#t~post210#1; 132#L379-3 [2021-12-15 17:04:55,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:04:55,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1806815512, now seen corresponding path program 1 times [2021-12-15 17:04:55,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:04:55,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494857221] [2021-12-15 17:04:55,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:04:55,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:04:55,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:04:55,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:04:55,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:04:55,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494857221] [2021-12-15 17:04:55,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494857221] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:04:55,603 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:04:55,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 17:04:55,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086595879] [2021-12-15 17:04:55,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:04:55,605 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:04:55,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:04:55,605 INFO L85 PathProgramCache]: Analyzing trace with hash 2252300, now seen corresponding path program 1 times [2021-12-15 17:04:55,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:04:55,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393733236] [2021-12-15 17:04:55,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:04:55,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:04:55,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:04:55,611 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:04:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:04:55,615 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:04:55,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:04:55,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 17:04:55,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-15 17:04:55,648 INFO L87 Difference]: Start difference. First operand 15 states and 20 transitions. cyclomatic complexity: 7 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) [2021-12-15 17:04:55,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:04:55,667 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2021-12-15 17:04:55,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 17:04:55,668 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2021-12-15 17:04:55,668 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-15 17:04:55,669 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 23 transitions. [2021-12-15 17:04:55,669 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-12-15 17:04:55,669 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-12-15 17:04:55,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2021-12-15 17:04:55,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:04:55,669 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-12-15 17:04:55,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2021-12-15 17:04:55,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 15. [2021-12-15 17:04:55,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 14 states have internal predecessors, (19), 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) [2021-12-15 17:04:55,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2021-12-15 17:04:55,671 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-12-15 17:04:55,671 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-12-15 17:04:55,671 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-15 17:04:55,671 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 19 transitions. [2021-12-15 17:04:55,671 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-15 17:04:55,671 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:04:55,671 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:04:55,672 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:04:55,672 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-15 17:04:55,672 INFO L791 eck$LassoCheckResult]: Stem: 171#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 172#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~nondet206#1, main_#t~malloc207#1.base, main_#t~malloc207#1.offset, main_#t~nondet209#1, main_#t~post208#1, main_#t~mem212#1, main_#t~post213#1, main_#t~mem211#1, main_#t~post210#1, main_~i~0#1, main_~j~0#1, main_~val~0#1, main_~limit~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~val~0#1;main_~limit~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet206#1;havoc main_#t~nondet206#1; 173#L369 assume !(main_~length~0#1 < 1); 174#L369-2 call main_#t~malloc207#1.base, main_#t~malloc207#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc207#1.base, main_#t~malloc207#1.offset; 177#L371 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 179#L372-3 assume !!(main_~i~0#1 < main_~length~0#1);main_~val~0#1 := main_#t~nondet209#1;havoc main_#t~nondet209#1; 181#L374 assume !(main_~val~0#1 > main_~limit~0#1); 167#L374-2 call write~int(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 168#L372-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 180#L372-3 assume !(main_~i~0#1 < main_~length~0#1); 178#L372-4 main_~j~0#1 := 0; 170#L379-3 [2021-12-15 17:04:55,672 INFO L793 eck$LassoCheckResult]: Loop: 170#L379-3 assume !!(main_~j~0#1 < main_~length~0#1); 175#L380-3 call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 176#L380-1 assume !(main_#t~mem211#1 < main_~limit~0#1);havoc main_#t~mem211#1; 169#L379-2 main_#t~post210#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post210#1;havoc main_#t~post210#1; 170#L379-3 [2021-12-15 17:04:55,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:04:55,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1329979393, now seen corresponding path program 1 times [2021-12-15 17:04:55,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:04:55,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638859581] [2021-12-15 17:04:55,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:04:55,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:04:55,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:04:55,682 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:04:55,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:04:55,731 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:04:55,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:04:55,732 INFO L85 PathProgramCache]: Analyzing trace with hash 2252300, now seen corresponding path program 2 times [2021-12-15 17:04:55,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:04:55,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225750720] [2021-12-15 17:04:55,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:04:55,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:04:55,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:04:55,735 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:04:55,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:04:55,738 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:04:55,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:04:55,738 INFO L85 PathProgramCache]: Analyzing trace with hash -2035265782, now seen corresponding path program 1 times [2021-12-15 17:04:55,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:04:55,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298179852] [2021-12-15 17:04:55,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:04:55,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:04:55,750 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 [2021-12-15 17:04:55,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:04:55,753 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:04:55,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:04:55,762 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:04:55,982 INFO L210 LassoAnalysis]: Preferences: [2021-12-15 17:04:55,982 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-15 17:04:55,982 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-15 17:04:55,982 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-15 17:04:55,983 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-15 17:04:55,983 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:55,983 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-15 17:04:55,983 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-15 17:04:55,983 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_alloca.i_Iteration3_Lasso [2021-12-15 17:04:55,983 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-15 17:04:55,983 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-15 17:04:55,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:55,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:55,992 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:55,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:55,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:55,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:55,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:56,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:56,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:56,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:56,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:56,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:56,246 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-15 17:04:56,246 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-15 17:04:56,246 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:56,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:56,247 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) [2021-12-15 17:04:56,252 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 [2021-12-15 17:04:56,255 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 [2021-12-15 17:04:56,261 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:56,261 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:04:56,261 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:56,261 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:56,261 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:56,262 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:04:56,262 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:04:56,275 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:04:56,295 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 [2021-12-15 17:04:56,296 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:56,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:56,297 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) [2021-12-15 17:04:56,299 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 [2021-12-15 17:04:56,305 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:56,305 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:04:56,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:56,306 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:56,306 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:56,308 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:04:56,308 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:04:56,311 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 [2021-12-15 17:04:56,316 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:04:56,331 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 [2021-12-15 17:04:56,331 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:56,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:56,332 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) [2021-12-15 17:04:56,332 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 [2021-12-15 17:04:56,335 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 [2021-12-15 17:04:56,341 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:56,341 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:04:56,342 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:56,342 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:56,342 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:56,342 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:04:56,342 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:04:56,343 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:04:56,357 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 [2021-12-15 17:04:56,358 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:56,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:56,358 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) [2021-12-15 17:04:56,359 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 [2021-12-15 17:04:56,361 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 [2021-12-15 17:04:56,367 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:56,367 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:04:56,367 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:56,367 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:56,367 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:56,367 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:04:56,367 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:04:56,375 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:04:56,390 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-12-15 17:04:56,391 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:56,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:56,392 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) [2021-12-15 17:04:56,423 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 [2021-12-15 17:04:56,424 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 [2021-12-15 17:04:56,430 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:56,430 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:04:56,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:56,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:56,431 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:56,431 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:04:56,431 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:04:56,450 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:04:56,467 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 [2021-12-15 17:04:56,468 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:56,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:56,469 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) [2021-12-15 17:04:56,469 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 [2021-12-15 17:04:56,471 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 [2021-12-15 17:04:56,476 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:56,477 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:56,477 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:56,477 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:56,478 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:04:56,478 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:04:56,494 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:04:56,511 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-12-15 17:04:56,512 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:56,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:56,512 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) [2021-12-15 17:04:56,514 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 [2021-12-15 17:04:56,514 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 [2021-12-15 17:04:56,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:56,520 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:04:56,520 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:56,520 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:56,520 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:56,520 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:04:56,520 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:04:56,521 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:04:56,536 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 [2021-12-15 17:04:56,536 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:56,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:56,537 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) [2021-12-15 17:04:56,547 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 [2021-12-15 17:04:56,548 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 [2021-12-15 17:04:56,553 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:56,554 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:04:56,554 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:56,554 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:56,554 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:56,554 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:04:56,554 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:04:56,555 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:04:56,570 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-12-15 17:04:56,570 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:56,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:56,571 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) [2021-12-15 17:04:56,572 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 [2021-12-15 17:04:56,573 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 [2021-12-15 17:04:56,578 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:56,578 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:04:56,578 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:56,578 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:56,578 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:56,579 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:04:56,579 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:04:56,590 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:04:56,605 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 [2021-12-15 17:04:56,606 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:56,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:56,607 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) [2021-12-15 17:04:56,611 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 [2021-12-15 17:04:56,612 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 [2021-12-15 17:04:56,618 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:56,618 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:56,618 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:56,618 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:56,620 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:04:56,620 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:04:56,635 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:04:56,650 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 [2021-12-15 17:04:56,651 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:56,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:56,651 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) [2021-12-15 17:04:56,652 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 [2021-12-15 17:04:56,653 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 [2021-12-15 17:04:56,659 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:56,659 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:56,660 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:56,660 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:56,664 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:04:56,664 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:04:56,675 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-15 17:04:56,689 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2021-12-15 17:04:56,689 INFO L444 ModelExtractionUtils]: 8 out of 25 variables were initially zero. Simplification set additionally 13 variables to zero. [2021-12-15 17:04:56,689 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:56,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:56,690 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) [2021-12-15 17:04:56,691 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 [2021-12-15 17:04:56,692 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-15 17:04:56,698 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-15 17:04:56,698 INFO L513 LassoAnalysis]: Proved termination. [2021-12-15 17:04:56,698 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~arr~0#1.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc207#1.base)_2, ULTIMATE.start_main_~j~0#1) = -1*ULTIMATE.start_main_~arr~0#1.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc207#1.base)_2 - 4*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2021-12-15 17:04:56,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-12-15 17:04:56,733 INFO L297 tatePredicateManager]: 2 out of 3 supporting invariants were superfluous and have been removed [2021-12-15 17:04:56,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:04:56,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:04:56,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-15 17:04:56,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:04:56,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:04:56,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-15 17:04:56,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:04:56,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:04:56,858 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-12-15 17:04:56,858 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 19 transitions. cyclomatic complexity: 6 Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2021-12-15 17:04:56,883 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 19 transitions. cyclomatic complexity: 6. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 21 states and 27 transitions. Complement of second has 7 states. [2021-12-15 17:04:56,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-15 17:04:56,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2021-12-15 17:04:56,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2021-12-15 17:04:56,885 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 11 letters. Loop has 4 letters. [2021-12-15 17:04:56,885 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:04:56,885 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 15 letters. Loop has 4 letters. [2021-12-15 17:04:56,885 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:04:56,885 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 11 letters. Loop has 8 letters. [2021-12-15 17:04:56,886 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:04:56,886 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 27 transitions. [2021-12-15 17:04:56,886 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-15 17:04:56,886 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 20 states and 26 transitions. [2021-12-15 17:04:56,887 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-12-15 17:04:56,887 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-12-15 17:04:56,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 26 transitions. [2021-12-15 17:04:56,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-15 17:04:56,887 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2021-12-15 17:04:56,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 26 transitions. [2021-12-15 17:04:56,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2021-12-15 17:04:56,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 17 states have internal predecessors, (24), 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) [2021-12-15 17:04:56,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2021-12-15 17:04:56,888 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-12-15 17:04:56,889 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-12-15 17:04:56,889 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-15 17:04:56,889 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 24 transitions. [2021-12-15 17:04:56,889 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-15 17:04:56,889 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:04:56,889 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:04:56,889 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:04:56,890 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-15 17:04:56,890 INFO L791 eck$LassoCheckResult]: Stem: 292#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 293#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~nondet206#1, main_#t~malloc207#1.base, main_#t~malloc207#1.offset, main_#t~nondet209#1, main_#t~post208#1, main_#t~mem212#1, main_#t~post213#1, main_#t~mem211#1, main_#t~post210#1, main_~i~0#1, main_~j~0#1, main_~val~0#1, main_~limit~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~val~0#1;main_~limit~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet206#1;havoc main_#t~nondet206#1; 296#L369 assume !(main_~length~0#1 < 1); 297#L369-2 call main_#t~malloc207#1.base, main_#t~malloc207#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc207#1.base, main_#t~malloc207#1.offset; 303#L371 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 305#L372-3 assume !!(main_~i~0#1 < main_~length~0#1);main_~val~0#1 := main_#t~nondet209#1;havoc main_#t~nondet209#1; 307#L374 assume !(main_~val~0#1 > main_~limit~0#1); 290#L374-2 call write~int(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 291#L372-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 306#L372-3 assume !(main_~i~0#1 < main_~length~0#1); 304#L372-4 main_~j~0#1 := 0; 298#L379-3 assume !!(main_~j~0#1 < main_~length~0#1); 300#L380-3 [2021-12-15 17:04:56,890 INFO L793 eck$LassoCheckResult]: Loop: 300#L380-3 call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 301#L380-1 assume !!(main_#t~mem211#1 < main_~limit~0#1);havoc main_#t~mem211#1;call main_#t~mem212#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post213#1 := main_#t~mem212#1;call write~int(1 + main_#t~post213#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem212#1;havoc main_#t~post213#1; 300#L380-3 [2021-12-15 17:04:56,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:04:56,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1720311820, now seen corresponding path program 1 times [2021-12-15 17:04:56,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:04:56,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866371497] [2021-12-15 17:04:56,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:04:56,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:04:56,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:04:56,898 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:04:56,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:04:56,904 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:04:56,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:04:56,904 INFO L85 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 1 times [2021-12-15 17:04:56,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:04:56,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159532180] [2021-12-15 17:04:56,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:04:56,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:04:56,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:04:56,908 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:04:56,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:04:56,911 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:04:56,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:04:56,922 INFO L85 PathProgramCache]: Analyzing trace with hash -342748399, now seen corresponding path program 1 times [2021-12-15 17:04:56,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:04:56,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711408380] [2021-12-15 17:04:56,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:04:56,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:04:56,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:04:56,932 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:04:56,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:04:56,939 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:04:57,127 INFO L210 LassoAnalysis]: Preferences: [2021-12-15 17:04:57,127 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-15 17:04:57,127 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-15 17:04:57,127 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-15 17:04:57,127 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-15 17:04:57,127 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:57,127 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-15 17:04:57,127 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-15 17:04:57,127 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_alloca.i_Iteration4_Lasso [2021-12-15 17:04:57,127 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-15 17:04:57,128 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-15 17:04:57,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:57,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:57,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:57,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:57,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:57,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:57,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:57,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:57,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:57,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:57,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:57,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:57,345 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-12-15 17:04:57,445 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-15 17:04:57,445 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-15 17:04:57,445 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:57,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:57,468 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) [2021-12-15 17:04:57,468 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 [2021-12-15 17:04:57,469 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 [2021-12-15 17:04:57,476 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:57,476 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:04:57,476 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:57,476 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:57,476 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:57,477 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:04:57,477 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:04:57,485 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:04:57,501 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-12-15 17:04:57,501 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:57,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:57,502 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) [2021-12-15 17:04:57,502 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 [2021-12-15 17:04:57,504 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 [2021-12-15 17:04:57,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:57,510 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:04:57,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:57,510 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:57,510 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:57,511 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:04:57,511 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:04:57,512 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:04:57,527 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-12-15 17:04:57,527 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:57,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:57,528 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) [2021-12-15 17:04:57,529 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 [2021-12-15 17:04:57,530 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 [2021-12-15 17:04:57,536 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:57,537 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:04:57,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:57,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:57,537 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:57,537 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:04:57,537 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:04:57,538 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:04:57,555 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 [2021-12-15 17:04:57,555 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:57,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:57,565 INFO L229 MonitoredProcess]: Starting monitored process 28 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) [2021-12-15 17:04:57,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-12-15 17:04:57,581 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 [2021-12-15 17:04:57,588 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:57,588 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:57,588 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:57,588 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:57,589 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:04:57,589 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:04:57,591 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:04:57,606 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-12-15 17:04:57,607 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:57,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:57,607 INFO L229 MonitoredProcess]: Starting monitored process 29 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) [2021-12-15 17:04:57,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-12-15 17:04:57,610 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 [2021-12-15 17:04:57,616 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:57,616 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:04:57,617 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:57,617 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:57,617 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:57,617 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:04:57,617 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:04:57,623 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:04:57,638 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-12-15 17:04:57,638 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:57,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:57,639 INFO L229 MonitoredProcess]: Starting monitored process 30 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) [2021-12-15 17:04:57,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-12-15 17:04:57,641 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 [2021-12-15 17:04:57,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:57,648 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:04:57,648 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:57,648 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:57,648 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:57,648 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:04:57,648 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:04:57,655 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:04:57,670 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-12-15 17:04:57,670 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:57,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:57,671 INFO L229 MonitoredProcess]: Starting monitored process 31 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) [2021-12-15 17:04:57,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-12-15 17:04:57,673 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 [2021-12-15 17:04:57,679 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:57,679 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:57,679 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:57,679 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:57,682 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:04:57,682 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:04:57,703 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-15 17:04:57,711 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2021-12-15 17:04:57,711 INFO L444 ModelExtractionUtils]: 6 out of 16 variables were initially zero. Simplification set additionally 7 variables to zero. [2021-12-15 17:04:57,711 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:57,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:57,712 INFO L229 MonitoredProcess]: Starting monitored process 32 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) [2021-12-15 17:04:57,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-12-15 17:04:57,714 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-15 17:04:57,735 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-15 17:04:57,735 INFO L513 LassoAnalysis]: Proved termination. [2021-12-15 17:04:57,735 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0#1.base) (+ (* ULTIMATE.start_main_~i~0#1 4) ULTIMATE.start_main_~arr~0#1.offset (- 4)))_1, ULTIMATE.start_main_~limit~0#1) = -1*v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0#1.base) (+ (* ULTIMATE.start_main_~i~0#1 4) ULTIMATE.start_main_~arr~0#1.offset (- 4)))_1 + 1*ULTIMATE.start_main_~limit~0#1 Supporting invariants [] [2021-12-15 17:04:57,752 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-12-15 17:04:57,760 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2021-12-15 17:04:57,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:04:57,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:04:57,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-15 17:04:57,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:04:57,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:04:57,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-15 17:04:57,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:04:57,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:04:57,882 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2021-12-15 17:04:57,882 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 9 Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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) [2021-12-15 17:04:57,941 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 9. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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 39 states and 51 transitions. Complement of second has 11 states. [2021-12-15 17:04:57,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 4 stem states 2 non-accepting loop states 2 accepting loop states [2021-12-15 17:04:57,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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) [2021-12-15 17:04:57,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 30 transitions. [2021-12-15 17:04:57,942 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 30 transitions. Stem has 12 letters. Loop has 2 letters. [2021-12-15 17:04:57,942 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:04:57,942 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 30 transitions. Stem has 14 letters. Loop has 2 letters. [2021-12-15 17:04:57,942 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:04:57,942 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 30 transitions. Stem has 12 letters. Loop has 4 letters. [2021-12-15 17:04:57,942 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:04:57,942 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 51 transitions. [2021-12-15 17:04:57,943 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-15 17:04:57,943 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 34 states and 44 transitions. [2021-12-15 17:04:57,943 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-12-15 17:04:57,944 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-12-15 17:04:57,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 44 transitions. [2021-12-15 17:04:57,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-15 17:04:57,944 INFO L681 BuchiCegarLoop]: Abstraction has 34 states and 44 transitions. [2021-12-15 17:04:57,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 44 transitions. [2021-12-15 17:04:57,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 27. [2021-12-15 17:04:57,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 26 states have internal predecessors, (36), 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) [2021-12-15 17:04:57,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2021-12-15 17:04:57,945 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2021-12-15 17:04:57,945 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2021-12-15 17:04:57,945 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-15 17:04:57,945 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 36 transitions. [2021-12-15 17:04:57,946 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-15 17:04:57,946 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:04:57,946 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:04:57,946 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:04:57,946 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-15 17:04:57,946 INFO L791 eck$LassoCheckResult]: Stem: 450#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 451#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~nondet206#1, main_#t~malloc207#1.base, main_#t~malloc207#1.offset, main_#t~nondet209#1, main_#t~post208#1, main_#t~mem212#1, main_#t~post213#1, main_#t~mem211#1, main_#t~post210#1, main_~i~0#1, main_~j~0#1, main_~val~0#1, main_~limit~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~val~0#1;main_~limit~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet206#1;havoc main_#t~nondet206#1; 454#L369 assume !(main_~length~0#1 < 1); 455#L369-2 call main_#t~malloc207#1.base, main_#t~malloc207#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc207#1.base, main_#t~malloc207#1.offset; 463#L371 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 466#L372-3 assume !!(main_~i~0#1 < main_~length~0#1);main_~val~0#1 := main_#t~nondet209#1;havoc main_#t~nondet209#1; 468#L374 assume !(main_~val~0#1 > main_~limit~0#1); 473#L374-2 call write~int(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 472#L372-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 469#L372-3 assume !(main_~i~0#1 < main_~length~0#1); 470#L372-4 main_~j~0#1 := 0; 456#L379-3 assume !!(main_~j~0#1 < main_~length~0#1); 457#L380-3 call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 474#L380-1 assume !(main_#t~mem211#1 < main_~limit~0#1);havoc main_#t~mem211#1; 452#L379-2 main_#t~post210#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post210#1;havoc main_#t~post210#1; 453#L379-3 assume !!(main_~j~0#1 < main_~length~0#1); 459#L380-3 [2021-12-15 17:04:57,946 INFO L793 eck$LassoCheckResult]: Loop: 459#L380-3 call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 460#L380-1 assume !!(main_#t~mem211#1 < main_~limit~0#1);havoc main_#t~mem211#1;call main_#t~mem212#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post213#1 := main_#t~mem212#1;call write~int(1 + main_#t~post213#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem212#1;havoc main_#t~post213#1; 459#L380-3 [2021-12-15 17:04:57,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:04:57,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1331270241, now seen corresponding path program 2 times [2021-12-15 17:04:57,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:04:57,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18982716] [2021-12-15 17:04:57,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:04:57,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:04:57,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:04:57,989 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:04:57,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:04:57,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18982716] [2021-12-15 17:04:57,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18982716] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 17:04:57,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157242468] [2021-12-15 17:04:57,990 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-15 17:04:57,990 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 17:04:57,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:57,991 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 17:04:58,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-12-15 17:04:58,049 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-15 17:04:58,049 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-15 17:04:58,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-15 17:04:58,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:04:58,125 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:04:58,125 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 17:04:58,157 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:04:58,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157242468] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 17:04:58,157 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 17:04:58,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2021-12-15 17:04:58,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383057619] [2021-12-15 17:04:58,157 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 17:04:58,158 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:04:58,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:04:58,158 INFO L85 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 2 times [2021-12-15 17:04:58,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:04:58,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237299925] [2021-12-15 17:04:58,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:04:58,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:04:58,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:04:58,163 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:04:58,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:04:58,166 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:04:58,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:04:58,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-15 17:04:58,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-12-15 17:04:58,190 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. cyclomatic complexity: 13 Second operand has 11 states, 10 states have (on average 3.2) internal successors, (32), 11 states have internal predecessors, (32), 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) [2021-12-15 17:04:58,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:04:58,269 INFO L93 Difference]: Finished difference Result 49 states and 64 transitions. [2021-12-15 17:04:58,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-15 17:04:58,271 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 64 transitions. [2021-12-15 17:04:58,274 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-12-15 17:04:58,274 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 40 states and 51 transitions. [2021-12-15 17:04:58,274 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-12-15 17:04:58,274 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-12-15 17:04:58,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 51 transitions. [2021-12-15 17:04:58,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-15 17:04:58,275 INFO L681 BuchiCegarLoop]: Abstraction has 40 states and 51 transitions. [2021-12-15 17:04:58,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 51 transitions. [2021-12-15 17:04:58,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 35. [2021-12-15 17:04:58,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 34 states have internal predecessors, (45), 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) [2021-12-15 17:04:58,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2021-12-15 17:04:58,276 INFO L704 BuchiCegarLoop]: Abstraction has 35 states and 45 transitions. [2021-12-15 17:04:58,276 INFO L587 BuchiCegarLoop]: Abstraction has 35 states and 45 transitions. [2021-12-15 17:04:58,276 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-15 17:04:58,277 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 45 transitions. [2021-12-15 17:04:58,277 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-15 17:04:58,277 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:04:58,277 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:04:58,278 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:04:58,278 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-15 17:04:58,278 INFO L791 eck$LassoCheckResult]: Stem: 640#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 641#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~nondet206#1, main_#t~malloc207#1.base, main_#t~malloc207#1.offset, main_#t~nondet209#1, main_#t~post208#1, main_#t~mem212#1, main_#t~post213#1, main_#t~mem211#1, main_#t~post210#1, main_~i~0#1, main_~j~0#1, main_~val~0#1, main_~limit~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~val~0#1;main_~limit~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet206#1;havoc main_#t~nondet206#1; 644#L369 assume main_~length~0#1 < 1;main_~length~0#1 := 1; 645#L369-2 call main_#t~malloc207#1.base, main_#t~malloc207#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc207#1.base, main_#t~malloc207#1.offset; 654#L371 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 655#L372-3 assume !!(main_~i~0#1 < main_~length~0#1);main_~val~0#1 := main_#t~nondet209#1;havoc main_#t~nondet209#1; 672#L374 assume !(main_~val~0#1 > main_~limit~0#1); 671#L374-2 call write~int(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 669#L372-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 668#L372-3 assume !!(main_~i~0#1 < main_~length~0#1);main_~val~0#1 := main_#t~nondet209#1;havoc main_#t~nondet209#1; 663#L374 assume !(main_~val~0#1 > main_~limit~0#1); 667#L374-2 call write~int(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 665#L372-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 662#L372-3 assume !(main_~i~0#1 < main_~length~0#1); 653#L372-4 main_~j~0#1 := 0; 647#L379-3 assume !!(main_~j~0#1 < main_~length~0#1); 648#L380-3 [2021-12-15 17:04:58,278 INFO L793 eck$LassoCheckResult]: Loop: 648#L380-3 call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 650#L380-1 assume !!(main_#t~mem211#1 < main_~limit~0#1);havoc main_#t~mem211#1;call main_#t~mem212#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post213#1 := main_#t~mem212#1;call write~int(1 + main_#t~post213#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem212#1;havoc main_#t~post213#1; 648#L380-3 [2021-12-15 17:04:58,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:04:58,279 INFO L85 PathProgramCache]: Analyzing trace with hash -420071865, now seen corresponding path program 1 times [2021-12-15 17:04:58,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:04:58,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003840021] [2021-12-15 17:04:58,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:04:58,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:04:58,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:04:58,306 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:04:58,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:04:58,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003840021] [2021-12-15 17:04:58,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003840021] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 17:04:58,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674482582] [2021-12-15 17:04:58,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:04:58,307 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 17:04:58,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:58,344 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 17:04:58,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2021-12-15 17:04:58,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:04:58,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-15 17:04:58,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:04:58,428 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-12-15 17:04:58,434 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:04:58,435 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 17:04:58,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674482582] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:04:58,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 17:04:58,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2021-12-15 17:04:58,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924364159] [2021-12-15 17:04:58,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:04:58,436 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:04:58,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:04:58,436 INFO L85 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 3 times [2021-12-15 17:04:58,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:04:58,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070769195] [2021-12-15 17:04:58,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:04:58,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:04:58,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:04:58,440 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:04:58,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:04:58,442 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:04:58,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:04:58,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 17:04:58,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-15 17:04:58,470 INFO L87 Difference]: Start difference. First operand 35 states and 45 transitions. cyclomatic complexity: 14 Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-12-15 17:04:58,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:04:58,487 INFO L93 Difference]: Finished difference Result 29 states and 36 transitions. [2021-12-15 17:04:58,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 17:04:58,488 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2021-12-15 17:04:58,489 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-15 17:04:58,490 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 22 states and 28 transitions. [2021-12-15 17:04:58,490 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-12-15 17:04:58,490 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-12-15 17:04:58,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 28 transitions. [2021-12-15 17:04:58,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-15 17:04:58,490 INFO L681 BuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2021-12-15 17:04:58,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 28 transitions. [2021-12-15 17:04:58,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-12-15 17:04:58,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 21 states have internal predecessors, (28), 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) [2021-12-15 17:04:58,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 28 transitions. [2021-12-15 17:04:58,495 INFO L704 BuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2021-12-15 17:04:58,495 INFO L587 BuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2021-12-15 17:04:58,495 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-12-15 17:04:58,495 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 28 transitions. [2021-12-15 17:04:58,496 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-15 17:04:58,497 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:04:58,497 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:04:58,498 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:04:58,498 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-15 17:04:58,498 INFO L791 eck$LassoCheckResult]: Stem: 761#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 762#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~nondet206#1, main_#t~malloc207#1.base, main_#t~malloc207#1.offset, main_#t~nondet209#1, main_#t~post208#1, main_#t~mem212#1, main_#t~post213#1, main_#t~mem211#1, main_#t~post210#1, main_~i~0#1, main_~j~0#1, main_~val~0#1, main_~limit~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~val~0#1;main_~limit~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet206#1;havoc main_#t~nondet206#1; 763#L369 assume !(main_~length~0#1 < 1); 764#L369-2 call main_#t~malloc207#1.base, main_#t~malloc207#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc207#1.base, main_#t~malloc207#1.offset; 771#L371 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 772#L372-3 assume !!(main_~i~0#1 < main_~length~0#1);main_~val~0#1 := main_#t~nondet209#1;havoc main_#t~nondet209#1; 774#L374 assume !(main_~val~0#1 > main_~limit~0#1); 757#L374-2 call write~int(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 758#L372-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 773#L372-3 assume !!(main_~i~0#1 < main_~length~0#1);main_~val~0#1 := main_#t~nondet209#1;havoc main_#t~nondet209#1; 775#L374 assume !(main_~val~0#1 > main_~limit~0#1); 778#L374-2 call write~int(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 777#L372-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 776#L372-3 assume !(main_~i~0#1 < main_~length~0#1); 770#L372-4 main_~j~0#1 := 0; 765#L379-3 assume !!(main_~j~0#1 < main_~length~0#1); 766#L380-3 [2021-12-15 17:04:58,498 INFO L793 eck$LassoCheckResult]: Loop: 766#L380-3 call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 768#L380-1 assume !!(main_#t~mem211#1 < main_~limit~0#1);havoc main_#t~mem211#1;call main_#t~mem212#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post213#1 := main_#t~mem212#1;call write~int(1 + main_#t~post213#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem212#1;havoc main_#t~post213#1; 766#L380-3 [2021-12-15 17:04:58,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:04:58,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1431189115, now seen corresponding path program 2 times [2021-12-15 17:04:58,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:04:58,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126143164] [2021-12-15 17:04:58,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:04:58,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:04:58,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:04:58,520 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:04:58,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:04:58,529 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:04:58,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:04:58,530 INFO L85 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 4 times [2021-12-15 17:04:58,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:04:58,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988756340] [2021-12-15 17:04:58,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:04:58,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:04:58,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:04:58,534 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:04:58,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:04:58,537 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:04:58,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:04:58,538 INFO L85 PathProgramCache]: Analyzing trace with hash -983203254, now seen corresponding path program 2 times [2021-12-15 17:04:58,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:04:58,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137053641] [2021-12-15 17:04:58,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:04:58,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:04:58,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:04:58,550 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:04:58,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:04:58,560 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:04:58,802 INFO L210 LassoAnalysis]: Preferences: [2021-12-15 17:04:58,802 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-15 17:04:58,802 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-15 17:04:58,802 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-15 17:04:58,803 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-15 17:04:58,803 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:58,803 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-15 17:04:58,803 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-15 17:04:58,803 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_alloca.i_Iteration7_Lasso [2021-12-15 17:04:58,803 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-15 17:04:58,803 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-15 17:04:58,804 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:58,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:58,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:58,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:58,811 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:58,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:58,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:58,817 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:58,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:58,819 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:58,924 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:58,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:58,928 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:04:59,080 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-15 17:04:59,080 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-15 17:04:59,080 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:59,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:59,081 INFO L229 MonitoredProcess]: Starting monitored process 35 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) [2021-12-15 17:04:59,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-12-15 17:04:59,084 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 [2021-12-15 17:04:59,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:59,089 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:59,089 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:59,089 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:59,090 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:04:59,090 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:04:59,092 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:04:59,108 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-12-15 17:04:59,108 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:59,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:59,110 INFO L229 MonitoredProcess]: Starting monitored process 36 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) [2021-12-15 17:04:59,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-12-15 17:04:59,112 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 [2021-12-15 17:04:59,117 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:59,117 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:04:59,117 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:59,117 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:59,117 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:59,118 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:04:59,118 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:04:59,118 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:04:59,134 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-12-15 17:04:59,134 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:59,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:59,135 INFO L229 MonitoredProcess]: Starting monitored process 37 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) [2021-12-15 17:04:59,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-12-15 17:04:59,137 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 [2021-12-15 17:04:59,145 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:59,146 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:59,146 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:59,146 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:59,147 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:04:59,147 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:04:59,149 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:04:59,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-12-15 17:04:59,165 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:59,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:59,165 INFO L229 MonitoredProcess]: Starting monitored process 38 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) [2021-12-15 17:04:59,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-12-15 17:04:59,167 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 [2021-12-15 17:04:59,173 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:59,173 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:04:59,173 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:59,173 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:59,173 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:59,175 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:04:59,175 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:04:59,190 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:04:59,206 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-12-15 17:04:59,206 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:59,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:59,207 INFO L229 MonitoredProcess]: Starting monitored process 39 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) [2021-12-15 17:04:59,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-12-15 17:04:59,209 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 [2021-12-15 17:04:59,214 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:59,215 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:59,215 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:59,215 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:59,216 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:04:59,216 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:04:59,218 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:04:59,236 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-12-15 17:04:59,237 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:59,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:59,238 INFO L229 MonitoredProcess]: Starting monitored process 40 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) [2021-12-15 17:04:59,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-12-15 17:04:59,242 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 [2021-12-15 17:04:59,247 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:59,247 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:04:59,247 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:59,247 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:59,247 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:59,248 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:04:59,248 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:04:59,248 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:04:59,270 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-12-15 17:04:59,270 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:59,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:59,271 INFO L229 MonitoredProcess]: Starting monitored process 41 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) [2021-12-15 17:04:59,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-12-15 17:04:59,273 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 [2021-12-15 17:04:59,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:59,280 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:04:59,280 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:59,280 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:59,280 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:59,280 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:04:59,280 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:04:59,295 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:04:59,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-12-15 17:04:59,312 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:59,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:59,313 INFO L229 MonitoredProcess]: Starting monitored process 42 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) [2021-12-15 17:04:59,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-12-15 17:04:59,317 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 [2021-12-15 17:04:59,324 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:59,324 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:04:59,324 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:59,324 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:59,324 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:59,324 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:04:59,324 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:04:59,332 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:04:59,348 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-12-15 17:04:59,348 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:59,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:59,349 INFO L229 MonitoredProcess]: Starting monitored process 43 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) [2021-12-15 17:04:59,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-12-15 17:04:59,351 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 [2021-12-15 17:04:59,357 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:59,357 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:04:59,357 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:59,357 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:59,357 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:59,357 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:04:59,357 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:04:59,358 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:04:59,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-12-15 17:04:59,377 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:59,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:59,379 INFO L229 MonitoredProcess]: Starting monitored process 44 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) [2021-12-15 17:04:59,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-12-15 17:04:59,384 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 [2021-12-15 17:04:59,391 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:59,391 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:59,391 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:59,391 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:59,392 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:04:59,393 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:04:59,401 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:04:59,417 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-12-15 17:04:59,417 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:59,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:59,418 INFO L229 MonitoredProcess]: Starting monitored process 45 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) [2021-12-15 17:04:59,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-12-15 17:04:59,420 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 [2021-12-15 17:04:59,425 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:59,426 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:59,426 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:59,426 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:59,427 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:04:59,427 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:04:59,429 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:04:59,444 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-12-15 17:04:59,444 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:59,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:59,445 INFO L229 MonitoredProcess]: Starting monitored process 46 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) [2021-12-15 17:04:59,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-12-15 17:04:59,447 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 [2021-12-15 17:04:59,453 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:59,453 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:59,453 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:59,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:59,456 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:04:59,456 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:04:59,471 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:04:59,490 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-12-15 17:04:59,491 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:59,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:59,492 INFO L229 MonitoredProcess]: Starting monitored process 47 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) [2021-12-15 17:04:59,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-12-15 17:04:59,494 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 [2021-12-15 17:04:59,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:59,500 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:59,501 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:59,501 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:59,504 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:04:59,504 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:04:59,524 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:04:59,543 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-12-15 17:04:59,543 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:59,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:59,545 INFO L229 MonitoredProcess]: Starting monitored process 48 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) [2021-12-15 17:04:59,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-12-15 17:04:59,547 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 [2021-12-15 17:04:59,552 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:04:59,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:04:59,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:04:59,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:04:59,556 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:04:59,557 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:04:59,564 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-15 17:04:59,576 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-12-15 17:04:59,576 INFO L444 ModelExtractionUtils]: 11 out of 19 variables were initially zero. Simplification set additionally 5 variables to zero. [2021-12-15 17:04:59,576 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:04:59,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:04:59,596 INFO L229 MonitoredProcess]: Starting monitored process 49 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) [2021-12-15 17:04:59,600 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-15 17:04:59,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-12-15 17:04:59,623 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-15 17:04:59,623 INFO L513 LassoAnalysis]: Proved termination. [2021-12-15 17:04:59,623 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0#1.base) ULTIMATE.start_main_~arr~0#1.offset)_2, ULTIMATE.start_main_~limit~0#1) = -1*v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0#1.base) ULTIMATE.start_main_~arr~0#1.offset)_2 + 1*ULTIMATE.start_main_~limit~0#1 Supporting invariants [] [2021-12-15 17:04:59,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-12-15 17:04:59,647 INFO L297 tatePredicateManager]: 5 out of 6 supporting invariants were superfluous and have been removed [2021-12-15 17:04:59,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:04:59,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:04:59,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-15 17:04:59,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:04:59,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:04:59,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-15 17:04:59,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:04:59,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:04:59,732 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-12-15 17:04:59,732 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 28 transitions. cyclomatic complexity: 9 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2021-12-15 17:04:59,762 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 28 transitions. cyclomatic complexity: 9. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 31 states and 39 transitions. Complement of second has 8 states. [2021-12-15 17:04:59,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-15 17:04:59,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2021-12-15 17:04:59,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2021-12-15 17:04:59,763 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 16 letters. Loop has 2 letters. [2021-12-15 17:04:59,763 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:04:59,764 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 18 letters. Loop has 2 letters. [2021-12-15 17:04:59,764 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:04:59,764 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 16 letters. Loop has 4 letters. [2021-12-15 17:04:59,764 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:04:59,764 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 39 transitions. [2021-12-15 17:04:59,764 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-15 17:04:59,765 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 26 states and 32 transitions. [2021-12-15 17:04:59,765 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-12-15 17:04:59,765 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-12-15 17:04:59,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 32 transitions. [2021-12-15 17:04:59,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-15 17:04:59,765 INFO L681 BuchiCegarLoop]: Abstraction has 26 states and 32 transitions. [2021-12-15 17:04:59,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 32 transitions. [2021-12-15 17:04:59,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2021-12-15 17:04:59,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.24) internal successors, (31), 24 states have internal predecessors, (31), 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) [2021-12-15 17:04:59,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2021-12-15 17:04:59,766 INFO L704 BuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2021-12-15 17:04:59,766 INFO L587 BuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2021-12-15 17:04:59,766 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-12-15 17:04:59,766 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 31 transitions. [2021-12-15 17:04:59,767 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-15 17:04:59,767 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:04:59,767 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:04:59,767 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:04:59,767 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-15 17:04:59,767 INFO L791 eck$LassoCheckResult]: Stem: 923#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 924#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~nondet206#1, main_#t~malloc207#1.base, main_#t~malloc207#1.offset, main_#t~nondet209#1, main_#t~post208#1, main_#t~mem212#1, main_#t~post213#1, main_#t~mem211#1, main_#t~post210#1, main_~i~0#1, main_~j~0#1, main_~val~0#1, main_~limit~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~val~0#1;main_~limit~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet206#1;havoc main_#t~nondet206#1; 925#L369 assume !(main_~length~0#1 < 1); 926#L369-2 call main_#t~malloc207#1.base, main_#t~malloc207#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc207#1.base, main_#t~malloc207#1.offset; 934#L371 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 936#L372-3 assume !!(main_~i~0#1 < main_~length~0#1);main_~val~0#1 := main_#t~nondet209#1;havoc main_#t~nondet209#1; 938#L374 assume !(main_~val~0#1 > main_~limit~0#1); 919#L374-2 call write~int(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 920#L372-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 937#L372-3 assume !!(main_~i~0#1 < main_~length~0#1);main_~val~0#1 := main_#t~nondet209#1;havoc main_#t~nondet209#1; 939#L374 assume !(main_~val~0#1 > main_~limit~0#1); 942#L374-2 call write~int(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 941#L372-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 940#L372-3 assume !(main_~i~0#1 < main_~length~0#1); 935#L372-4 main_~j~0#1 := 0; 927#L379-3 assume !!(main_~j~0#1 < main_~length~0#1); 928#L380-3 call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 943#L380-1 assume !(main_#t~mem211#1 < main_~limit~0#1);havoc main_#t~mem211#1; 921#L379-2 main_#t~post210#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post210#1;havoc main_#t~post210#1; 922#L379-3 assume !!(main_~j~0#1 < main_~length~0#1); 929#L380-3 [2021-12-15 17:04:59,767 INFO L793 eck$LassoCheckResult]: Loop: 929#L380-3 call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 931#L380-1 assume !!(main_#t~mem211#1 < main_~limit~0#1);havoc main_#t~mem211#1;call main_#t~mem212#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post213#1 := main_#t~mem212#1;call write~int(1 + main_#t~post213#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem212#1;havoc main_#t~post213#1; 929#L380-3 [2021-12-15 17:04:59,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:04:59,768 INFO L85 PathProgramCache]: Analyzing trace with hash 34477914, now seen corresponding path program 3 times [2021-12-15 17:04:59,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:04:59,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808001243] [2021-12-15 17:04:59,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:04:59,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:04:59,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:04:59,776 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:04:59,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:04:59,784 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:04:59,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:04:59,784 INFO L85 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 5 times [2021-12-15 17:04:59,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:04:59,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433287799] [2021-12-15 17:04:59,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:04:59,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:04:59,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:04:59,788 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:04:59,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:04:59,790 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:04:59,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:04:59,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1226461473, now seen corresponding path program 1 times [2021-12-15 17:04:59,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:04:59,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822910046] [2021-12-15 17:04:59,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:04:59,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:04:59,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:04:59,800 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:04:59,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:04:59,808 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:05:00,082 INFO L210 LassoAnalysis]: Preferences: [2021-12-15 17:05:00,082 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-15 17:05:00,082 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-15 17:05:00,083 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-15 17:05:00,083 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-15 17:05:00,083 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:05:00,083 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-15 17:05:00,083 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-15 17:05:00,083 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_alloca.i_Iteration8_Lasso [2021-12-15 17:05:00,083 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-15 17:05:00,083 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-15 17:05:00,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:05:00,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:05:00,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:05:00,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:05:00,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:05:00,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:05:00,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:05:00,205 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:05:00,207 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:05:00,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:05:00,210 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:05:00,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:05:00,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:05:00,385 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-15 17:05:00,385 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-15 17:05:00,385 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:05:00,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:05:00,386 INFO L229 MonitoredProcess]: Starting monitored process 50 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) [2021-12-15 17:05:00,408 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 [2021-12-15 17:05:00,415 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:05:00,415 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:05:00,415 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:05:00,415 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:05:00,415 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:05:00,415 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:05:00,415 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:05:00,416 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2021-12-15 17:05:00,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-12-15 17:05:00,423 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:05:00,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-12-15 17:05:00,439 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:05:00,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:05:00,440 INFO L229 MonitoredProcess]: Starting monitored process 51 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) [2021-12-15 17:05:00,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-12-15 17:05:00,442 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 [2021-12-15 17:05:00,448 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:05:00,448 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:05:00,448 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:05:00,448 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:05:00,449 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:05:00,449 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:05:00,465 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:05:00,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-12-15 17:05:00,491 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:05:00,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:05:00,494 INFO L229 MonitoredProcess]: Starting monitored process 52 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) [2021-12-15 17:05:00,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-12-15 17:05:00,496 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 [2021-12-15 17:05:00,503 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:05:00,503 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:05:00,504 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:05:00,504 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:05:00,504 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:05:00,504 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:05:00,504 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:05:00,505 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:05:00,522 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2021-12-15 17:05:00,523 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:05:00,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:05:00,524 INFO L229 MonitoredProcess]: Starting monitored process 53 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) [2021-12-15 17:05:00,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-12-15 17:05:00,526 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 [2021-12-15 17:05:00,532 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:05:00,533 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:05:00,533 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:05:00,533 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:05:00,533 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:05:00,533 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:05:00,533 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:05:00,534 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:05:00,550 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-12-15 17:05:00,550 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:05:00,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:05:00,551 INFO L229 MonitoredProcess]: Starting monitored process 54 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) [2021-12-15 17:05:00,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-12-15 17:05:00,553 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 [2021-12-15 17:05:00,559 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:05:00,560 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:05:00,560 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:05:00,560 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:05:00,561 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:05:00,561 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:05:00,571 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:05:00,588 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2021-12-15 17:05:00,589 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:05:00,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:05:00,589 INFO L229 MonitoredProcess]: Starting monitored process 55 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) [2021-12-15 17:05:00,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-12-15 17:05:00,592 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 [2021-12-15 17:05:00,598 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:05:00,598 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:05:00,598 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:05:00,598 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:05:00,603 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:05:00,603 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:05:00,623 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-15 17:05:00,640 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-12-15 17:05:00,640 INFO L444 ModelExtractionUtils]: 4 out of 19 variables were initially zero. Simplification set additionally 12 variables to zero. [2021-12-15 17:05:00,641 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:05:00,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:05:00,652 INFO L229 MonitoredProcess]: Starting monitored process 56 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) [2021-12-15 17:05:00,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-12-15 17:05:00,654 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-15 17:05:00,680 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-15 17:05:00,680 INFO L513 LassoAnalysis]: Proved termination. [2021-12-15 17:05:00,680 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0#1.base) (+ (* ULTIMATE.start_main_~i~0#1 4) ULTIMATE.start_main_~arr~0#1.offset (- 4)))_2, ULTIMATE.start_main_~limit~0#1) = -1*v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0#1.base) (+ (* ULTIMATE.start_main_~i~0#1 4) ULTIMATE.start_main_~arr~0#1.offset (- 4)))_2 + 1*ULTIMATE.start_main_~limit~0#1 Supporting invariants [] [2021-12-15 17:05:00,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2021-12-15 17:05:00,712 INFO L297 tatePredicateManager]: 5 out of 6 supporting invariants were superfluous and have been removed [2021-12-15 17:05:00,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:05:00,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:05:00,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-15 17:05:00,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:05:00,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:05:00,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-15 17:05:00,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:05:00,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:05:00,911 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.6 stem predicates 2 loop predicates [2021-12-15 17:05:00,912 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10 Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 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) [2021-12-15 17:05:00,981 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10. Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 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 35 states and 45 transitions. Complement of second has 7 states. [2021-12-15 17:05:00,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 5 stem states 0 non-accepting loop states 1 accepting loop states [2021-12-15 17:05:00,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 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) [2021-12-15 17:05:00,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 31 transitions. [2021-12-15 17:05:00,983 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 31 transitions. Stem has 20 letters. Loop has 2 letters. [2021-12-15 17:05:00,984 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:05:00,984 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-15 17:05:01,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:05:01,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:05:01,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-15 17:05:01,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:05:01,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:05:01,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-15 17:05:01,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:05:01,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:05:01,171 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.6 stem predicates 2 loop predicates [2021-12-15 17:05:01,171 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10 Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 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) [2021-12-15 17:05:01,229 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10. Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 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 35 states and 45 transitions. Complement of second has 7 states. [2021-12-15 17:05:01,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 5 stem states 0 non-accepting loop states 1 accepting loop states [2021-12-15 17:05:01,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 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) [2021-12-15 17:05:01,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 31 transitions. [2021-12-15 17:05:01,230 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 31 transitions. Stem has 20 letters. Loop has 2 letters. [2021-12-15 17:05:01,230 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:05:01,230 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-15 17:05:01,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:05:01,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:05:01,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-15 17:05:01,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:05:01,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:05:01,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-15 17:05:01,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:05:01,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:05:01,410 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.6 stem predicates 2 loop predicates [2021-12-15 17:05:01,410 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10 Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 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) [2021-12-15 17:05:01,556 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2021-12-15 17:05:01,571 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10. Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 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 62 states and 79 transitions. Complement of second has 14 states. [2021-12-15 17:05:01,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 6 stem states 2 non-accepting loop states 2 accepting loop states [2021-12-15 17:05:01,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 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) [2021-12-15 17:05:01,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 56 transitions. [2021-12-15 17:05:01,573 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 56 transitions. Stem has 20 letters. Loop has 2 letters. [2021-12-15 17:05:01,573 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:05:01,573 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 56 transitions. Stem has 22 letters. Loop has 2 letters. [2021-12-15 17:05:01,574 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:05:01,574 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 56 transitions. Stem has 20 letters. Loop has 4 letters. [2021-12-15 17:05:01,574 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:05:01,574 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 79 transitions. [2021-12-15 17:05:01,575 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-12-15 17:05:01,575 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 57 states and 72 transitions. [2021-12-15 17:05:01,575 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-12-15 17:05:01,576 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-12-15 17:05:01,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 72 transitions. [2021-12-15 17:05:01,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-15 17:05:01,576 INFO L681 BuchiCegarLoop]: Abstraction has 57 states and 72 transitions. [2021-12-15 17:05:01,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states and 72 transitions. [2021-12-15 17:05:01,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 36. [2021-12-15 17:05:01,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.25) internal successors, (45), 35 states have internal predecessors, (45), 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) [2021-12-15 17:05:01,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 45 transitions. [2021-12-15 17:05:01,579 INFO L704 BuchiCegarLoop]: Abstraction has 36 states and 45 transitions. [2021-12-15 17:05:01,579 INFO L587 BuchiCegarLoop]: Abstraction has 36 states and 45 transitions. [2021-12-15 17:05:01,579 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-12-15 17:05:01,579 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 45 transitions. [2021-12-15 17:05:01,579 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-15 17:05:01,580 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:05:01,580 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:05:01,580 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:05:01,580 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-15 17:05:01,581 INFO L791 eck$LassoCheckResult]: Stem: 1386#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1387#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~nondet206#1, main_#t~malloc207#1.base, main_#t~malloc207#1.offset, main_#t~nondet209#1, main_#t~post208#1, main_#t~mem212#1, main_#t~post213#1, main_#t~mem211#1, main_#t~post210#1, main_~i~0#1, main_~j~0#1, main_~val~0#1, main_~limit~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~val~0#1;main_~limit~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet206#1;havoc main_#t~nondet206#1; 1390#L369 assume !(main_~length~0#1 < 1); 1391#L369-2 call main_#t~malloc207#1.base, main_#t~malloc207#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc207#1.base, main_#t~malloc207#1.offset; 1400#L371 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 1403#L372-3 assume !!(main_~i~0#1 < main_~length~0#1);main_~val~0#1 := main_#t~nondet209#1;havoc main_#t~nondet209#1; 1406#L374 assume !(main_~val~0#1 > main_~limit~0#1); 1413#L374-2 call write~int(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 1412#L372-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 1407#L372-3 assume !!(main_~i~0#1 < main_~length~0#1);main_~val~0#1 := main_#t~nondet209#1;havoc main_#t~nondet209#1; 1408#L374 assume !(main_~val~0#1 > main_~limit~0#1); 1418#L374-2 call write~int(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 1404#L372-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 1405#L372-3 assume !(main_~i~0#1 < main_~length~0#1); 1401#L372-4 main_~j~0#1 := 0; 1402#L379-3 assume !!(main_~j~0#1 < main_~length~0#1); 1416#L380-3 call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1415#L380-1 assume !(main_#t~mem211#1 < main_~limit~0#1);havoc main_#t~mem211#1; 1414#L379-2 main_#t~post210#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post210#1;havoc main_#t~post210#1; 1394#L379-3 assume !!(main_~j~0#1 < main_~length~0#1); 1393#L380-3 call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1419#L380-1 assume !(main_#t~mem211#1 < main_~limit~0#1);havoc main_#t~mem211#1; 1388#L379-2 main_#t~post210#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post210#1;havoc main_#t~post210#1; 1389#L379-3 assume !!(main_~j~0#1 < main_~length~0#1); 1396#L380-3 [2021-12-15 17:05:01,581 INFO L793 eck$LassoCheckResult]: Loop: 1396#L380-3 call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1395#L380-1 assume !!(main_#t~mem211#1 < main_~limit~0#1);havoc main_#t~mem211#1;call main_#t~mem212#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post213#1 := main_#t~mem212#1;call write~int(1 + main_#t~post213#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem212#1;havoc main_#t~post213#1; 1396#L380-3 [2021-12-15 17:05:01,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:05:01,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1808436561, now seen corresponding path program 4 times [2021-12-15 17:05:01,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:05:01,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283164419] [2021-12-15 17:05:01,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:05:01,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:05:01,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:05:01,630 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:05:01,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:05:01,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283164419] [2021-12-15 17:05:01,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283164419] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 17:05:01,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224858897] [2021-12-15 17:05:01,631 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-15 17:05:01,631 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 17:05:01,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:05:01,636 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 17:05:01,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2021-12-15 17:05:01,680 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-15 17:05:01,680 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-15 17:05:01,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-15 17:05:01,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:05:01,757 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:05:01,757 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 17:05:01,805 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:05:01,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224858897] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 17:05:01,805 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 17:05:01,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 13 [2021-12-15 17:05:01,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308859265] [2021-12-15 17:05:01,806 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 17:05:01,806 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:05:01,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:05:01,806 INFO L85 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 6 times [2021-12-15 17:05:01,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:05:01,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498391513] [2021-12-15 17:05:01,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:05:01,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:05:01,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:05:01,810 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:05:01,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:05:01,813 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:05:01,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:05:01,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-15 17:05:01,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-12-15 17:05:01,837 INFO L87 Difference]: Start difference. First operand 36 states and 45 transitions. cyclomatic complexity: 14 Second operand has 14 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 14 states have internal predecessors, (44), 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) [2021-12-15 17:05:01,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:05:01,902 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2021-12-15 17:05:01,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-15 17:05:01,902 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 54 transitions. [2021-12-15 17:05:01,903 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-15 17:05:01,903 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 32 states and 40 transitions. [2021-12-15 17:05:01,903 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-12-15 17:05:01,903 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-12-15 17:05:01,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 40 transitions. [2021-12-15 17:05:01,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-15 17:05:01,903 INFO L681 BuchiCegarLoop]: Abstraction has 32 states and 40 transitions. [2021-12-15 17:05:01,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 40 transitions. [2021-12-15 17:05:01,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29. [2021-12-15 17:05:01,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 28 states have internal predecessors, (36), 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) [2021-12-15 17:05:01,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2021-12-15 17:05:01,904 INFO L704 BuchiCegarLoop]: Abstraction has 29 states and 36 transitions. [2021-12-15 17:05:01,904 INFO L587 BuchiCegarLoop]: Abstraction has 29 states and 36 transitions. [2021-12-15 17:05:01,904 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-12-15 17:05:01,904 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 36 transitions. [2021-12-15 17:05:01,905 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-15 17:05:01,905 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:05:01,905 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:05:01,905 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:05:01,905 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-15 17:05:01,905 INFO L791 eck$LassoCheckResult]: Stem: 1631#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1632#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~nondet206#1, main_#t~malloc207#1.base, main_#t~malloc207#1.offset, main_#t~nondet209#1, main_#t~post208#1, main_#t~mem212#1, main_#t~post213#1, main_#t~mem211#1, main_#t~post210#1, main_~i~0#1, main_~j~0#1, main_~val~0#1, main_~limit~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~val~0#1;main_~limit~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1;main_~length~0#1 := main_#t~nondet206#1;havoc main_#t~nondet206#1; 1633#L369 assume !(main_~length~0#1 < 1); 1634#L369-2 call main_#t~malloc207#1.base, main_#t~malloc207#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc207#1.base, main_#t~malloc207#1.offset; 1643#L371 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);main_~i~0#1 := 0; 1644#L372-3 assume !!(main_~i~0#1 < main_~length~0#1);main_~val~0#1 := main_#t~nondet209#1;havoc main_#t~nondet209#1; 1646#L374 assume !(main_~val~0#1 > main_~limit~0#1); 1655#L374-2 call write~int(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 1654#L372-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 1647#L372-3 assume !!(main_~i~0#1 < main_~length~0#1);main_~val~0#1 := main_#t~nondet209#1;havoc main_#t~nondet209#1; 1648#L374 assume !(main_~val~0#1 > main_~limit~0#1); 1627#L374-2 call write~int(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 1628#L372-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 1645#L372-3 assume !!(main_~i~0#1 < main_~length~0#1);main_~val~0#1 := main_#t~nondet209#1;havoc main_#t~nondet209#1; 1651#L374 assume !(main_~val~0#1 > main_~limit~0#1); 1653#L374-2 call write~int(main_~val~0#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4); 1652#L372-2 main_#t~post208#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post208#1;havoc main_#t~post208#1; 1650#L372-3 assume !(main_~i~0#1 < main_~length~0#1); 1642#L372-4 main_~j~0#1 := 0; 1635#L379-3 assume !!(main_~j~0#1 < main_~length~0#1); 1636#L380-3 call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1649#L380-1 assume !(main_#t~mem211#1 < main_~limit~0#1);havoc main_#t~mem211#1; 1629#L379-2 main_#t~post210#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post210#1;havoc main_#t~post210#1; 1630#L379-3 assume !!(main_~j~0#1 < main_~length~0#1); 1637#L380-3 [2021-12-15 17:05:01,905 INFO L793 eck$LassoCheckResult]: Loop: 1637#L380-3 call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1639#L380-1 assume !!(main_#t~mem211#1 < main_~limit~0#1);havoc main_#t~mem211#1;call main_#t~mem212#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post213#1 := main_#t~mem212#1;call write~int(1 + main_#t~post213#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem212#1;havoc main_#t~post213#1; 1637#L380-3 [2021-12-15 17:05:01,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:05:01,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1936361517, now seen corresponding path program 5 times [2021-12-15 17:05:01,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:05:01,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728828296] [2021-12-15 17:05:01,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:05:01,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:05:01,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:05:01,914 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:05:01,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:05:01,928 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:05:01,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:05:01,929 INFO L85 PathProgramCache]: Analyzing trace with hash 2502, now seen corresponding path program 7 times [2021-12-15 17:05:01,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:05:01,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755890330] [2021-12-15 17:05:01,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:05:01,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:05:01,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:05:01,932 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:05:01,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:05:01,934 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:05:01,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:05:01,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1122577128, now seen corresponding path program 2 times [2021-12-15 17:05:01,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:05:01,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293423665] [2021-12-15 17:05:01,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:05:01,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:05:01,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:05:01,944 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:05:01,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:05:01,964 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:05:02,348 INFO L210 LassoAnalysis]: Preferences: [2021-12-15 17:05:02,349 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-15 17:05:02,349 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-15 17:05:02,349 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-15 17:05:02,349 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-15 17:05:02,349 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:05:02,349 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-15 17:05:02,349 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-15 17:05:02,349 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_alloca.i_Iteration10_Lasso [2021-12-15 17:05:02,349 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-15 17:05:02,349 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-15 17:05:02,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:05:02,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:05:02,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:05:02,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:05:02,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:05:02,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:05:02,510 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:05:02,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:05:02,513 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:05:02,514 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:05:02,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:05:02,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:05:02,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-15 17:05:02,729 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-15 17:05:02,729 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-15 17:05:02,729 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:05:02,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:05:02,730 INFO L229 MonitoredProcess]: Starting monitored process 58 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) [2021-12-15 17:05:02,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-12-15 17:05:02,734 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 [2021-12-15 17:05:02,740 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:05:02,740 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:05:02,740 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:05:02,740 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:05:02,741 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:05:02,741 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:05:02,748 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:05:02,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-12-15 17:05:02,763 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:05:02,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:05:02,764 INFO L229 MonitoredProcess]: Starting monitored process 59 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) [2021-12-15 17:05:02,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-12-15 17:05:02,766 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 [2021-12-15 17:05:02,772 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:05:02,772 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:05:02,772 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:05:02,772 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:05:02,772 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:05:02,773 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:05:02,773 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:05:02,773 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:05:02,788 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2021-12-15 17:05:02,789 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:05:02,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:05:02,790 INFO L229 MonitoredProcess]: Starting monitored process 60 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) [2021-12-15 17:05:02,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-12-15 17:05:02,792 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 [2021-12-15 17:05:02,798 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:05:02,798 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:05:02,798 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:05:02,798 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:05:02,799 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:05:02,799 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:05:02,801 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:05:02,816 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2021-12-15 17:05:02,817 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:05:02,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:05:02,817 INFO L229 MonitoredProcess]: Starting monitored process 61 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) [2021-12-15 17:05:02,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-12-15 17:05:02,820 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 [2021-12-15 17:05:02,827 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:05:02,827 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:05:02,827 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:05:02,827 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:05:02,827 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:05:02,827 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:05:02,827 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:05:02,828 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:05:02,843 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2021-12-15 17:05:02,844 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:05:02,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:05:02,844 INFO L229 MonitoredProcess]: Starting monitored process 62 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) [2021-12-15 17:05:02,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-12-15 17:05:02,846 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 [2021-12-15 17:05:02,852 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:05:02,852 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-15 17:05:02,852 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:05:02,852 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:05:02,853 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:05:02,853 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-15 17:05:02,853 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-15 17:05:02,853 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:05:02,869 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2021-12-15 17:05:02,870 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:05:02,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:05:02,870 INFO L229 MonitoredProcess]: Starting monitored process 63 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) [2021-12-15 17:05:02,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-12-15 17:05:02,872 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 [2021-12-15 17:05:02,878 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:05:02,878 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:05:02,878 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:05:02,878 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:05:02,880 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:05:02,880 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:05:02,887 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-15 17:05:02,902 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2021-12-15 17:05:02,902 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:05:02,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:05:02,903 INFO L229 MonitoredProcess]: Starting monitored process 64 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) [2021-12-15 17:05:02,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-12-15 17:05:02,905 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 [2021-12-15 17:05:02,911 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-15 17:05:02,912 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-15 17:05:02,912 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-15 17:05:02,912 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-15 17:05:02,917 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-15 17:05:02,917 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-15 17:05:02,925 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-15 17:05:02,946 INFO L443 ModelExtractionUtils]: Simplification made 15 calls to the SMT solver. [2021-12-15 17:05:02,946 INFO L444 ModelExtractionUtils]: 5 out of 25 variables were initially zero. Simplification set additionally 17 variables to zero. [2021-12-15 17:05:02,946 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:05:02,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:05:02,947 INFO L229 MonitoredProcess]: Starting monitored process 65 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) [2021-12-15 17:05:02,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-12-15 17:05:02,949 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-15 17:05:02,958 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-15 17:05:02,959 INFO L513 LassoAnalysis]: Proved termination. [2021-12-15 17:05:02,959 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~limit~0#1, v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0#1.base) (+ (* ULTIMATE.start_main_~j~0#1 4) ULTIMATE.start_main_~arr~0#1.offset))_1) = 1*ULTIMATE.start_main_~limit~0#1 - 1*v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0#1.base) (+ (* ULTIMATE.start_main_~j~0#1 4) ULTIMATE.start_main_~arr~0#1.offset))_1 Supporting invariants [] [2021-12-15 17:05:02,976 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2021-12-15 17:05:02,993 INFO L297 tatePredicateManager]: 13 out of 13 supporting invariants were superfluous and have been removed [2021-12-15 17:05:03,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:05:03,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:05:03,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 17:05:03,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:05:03,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:05:03,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-15 17:05:03,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:05:03,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:05:03,101 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 [2021-12-15 17:05:03,101 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 36 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2021-12-15 17:05:03,117 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 36 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) Result 33 states and 40 transitions. Complement of second has 7 states. [2021-12-15 17:05:03,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-15 17:05:03,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2021-12-15 17:05:03,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2021-12-15 17:05:03,120 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 24 letters. Loop has 2 letters. [2021-12-15 17:05:03,120 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:05:03,120 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-15 17:05:03,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:05:03,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:05:03,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 17:05:03,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:05:03,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:05:03,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-15 17:05:03,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:05:03,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:05:03,213 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-15 17:05:03,213 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 36 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2021-12-15 17:05:03,227 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 36 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) Result 33 states and 40 transitions. Complement of second has 7 states. [2021-12-15 17:05:03,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-15 17:05:03,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2021-12-15 17:05:03,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2021-12-15 17:05:03,228 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 24 letters. Loop has 2 letters. [2021-12-15 17:05:03,228 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:05:03,228 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-15 17:05:03,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:05:03,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:05:03,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 17:05:03,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:05:03,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:05:03,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-15 17:05:03,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 17:05:03,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:05:03,318 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-15 17:05:03,318 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 36 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2021-12-15 17:05:03,329 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 36 transitions. cyclomatic complexity: 11. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) Result 35 states and 44 transitions. Complement of second has 6 states. [2021-12-15 17:05:03,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-15 17:05:03,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2021-12-15 17:05:03,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2021-12-15 17:05:03,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 24 letters. Loop has 2 letters. [2021-12-15 17:05:03,330 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:05:03,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 26 letters. Loop has 2 letters. [2021-12-15 17:05:03,330 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:05:03,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 24 letters. Loop has 4 letters. [2021-12-15 17:05:03,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-15 17:05:03,331 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 44 transitions. [2021-12-15 17:05:03,331 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-15 17:05:03,331 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 0 states and 0 transitions. [2021-12-15 17:05:03,332 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-15 17:05:03,332 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-15 17:05:03,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-15 17:05:03,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:05:03,332 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 17:05:03,332 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 17:05:03,332 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 17:05:03,332 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-12-15 17:05:03,332 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-15 17:05:03,332 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-15 17:05:03,332 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-15 17:05:03,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.12 05:05:03 BoogieIcfgContainer [2021-12-15 17:05:03,346 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-15 17:05:03,346 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 17:05:03,346 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 17:05:03,346 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 17:05:03,347 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:04:53" (3/4) ... [2021-12-15 17:05:03,352 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-15 17:05:03,352 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 17:05:03,352 INFO L158 Benchmark]: Toolchain (without parser) took 10288.51ms. Allocated memory was 88.1MB in the beginning and 172.0MB in the end (delta: 83.9MB). Free memory was 54.6MB in the beginning and 82.3MB in the end (delta: -27.6MB). Peak memory consumption was 54.4MB. Max. memory is 16.1GB. [2021-12-15 17:05:03,352 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 88.1MB. Free memory is still 45.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:05:03,353 INFO L158 Benchmark]: CACSL2BoogieTranslator took 364.35ms. Allocated memory was 88.1MB in the beginning and 117.4MB in the end (delta: 29.4MB). Free memory was 54.4MB in the beginning and 85.1MB in the end (delta: -30.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 17:05:03,353 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.76ms. Allocated memory is still 117.4MB. Free memory was 85.1MB in the beginning and 83.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 17:05:03,353 INFO L158 Benchmark]: Boogie Preprocessor took 24.68ms. Allocated memory is still 117.4MB. Free memory was 83.0MB in the beginning and 82.2MB in the end (delta: 786.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 17:05:03,354 INFO L158 Benchmark]: RCFGBuilder took 242.91ms. Allocated memory is still 117.4MB. Free memory was 82.2MB in the beginning and 72.4MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 17:05:03,354 INFO L158 Benchmark]: BuchiAutomizer took 9616.14ms. Allocated memory was 117.4MB in the beginning and 172.0MB in the end (delta: 54.5MB). Free memory was 71.8MB in the beginning and 82.3MB in the end (delta: -10.5MB). Peak memory consumption was 44.7MB. Max. memory is 16.1GB. [2021-12-15 17:05:03,354 INFO L158 Benchmark]: Witness Printer took 5.46ms. Allocated memory is still 172.0MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:05:03,355 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 88.1MB. Free memory is still 45.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 364.35ms. Allocated memory was 88.1MB in the beginning and 117.4MB in the end (delta: 29.4MB). Free memory was 54.4MB in the beginning and 85.1MB in the end (delta: -30.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.76ms. Allocated memory is still 117.4MB. Free memory was 85.1MB in the beginning and 83.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.68ms. Allocated memory is still 117.4MB. Free memory was 83.0MB in the beginning and 82.2MB in the end (delta: 786.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 242.91ms. Allocated memory is still 117.4MB. Free memory was 82.2MB in the beginning and 72.4MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 9616.14ms. Allocated memory was 117.4MB in the beginning and 172.0MB in the end (delta: 54.5MB). Free memory was 71.8MB in the beginning and 82.3MB in the end (delta: -10.5MB). Peak memory consumption was 44.7MB. Max. memory is 16.1GB. * Witness Printer took 5.46ms. Allocated memory is still 172.0MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 10 terminating modules (4 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[arr] + -4 * i + -1 * arr and consists of 5 locations. One deterministic module has affine ranking function -1 * arr + unknown-#length-unknown[__builtin_alloca(length*sizeof(int))] + -4 * j and consists of 5 locations. One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[arr][i * 4 + arr + -4] + limit and consists of 8 locations. One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[arr][arr] + limit and consists of 5 locations. One nondeterministic module has affine ranking function -1 * unknown-#memory_int-unknown[arr][i * 4 + arr + -4] + limit and consists of 10 locations. One nondeterministic module has affine ranking function limit + -1 * unknown-#memory_int-unknown[arr][j * 4 + arr] and consists of 4 locations. 4 modules have a trivial ranking function, the largest among these consists of 14 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.5s and 11 iterations. TraceHistogramMax:3. Analysis of lassos took 7.3s. Construction of modules took 0.2s. Büchi inclusion checks took 1.7s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 7. Automata minimization 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 42 StatesRemovedByMinimization, 7 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 36 states and ocurred in iteration 8. Nontrivial modules had stage [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 371 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 367 mSDsluCounter, 441 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 261 mSDsCounter, 80 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 493 IncrementalHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 80 mSolverCounterUnsat, 180 mSDtfsCounter, 493 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU4 SILI0 SILT0 lasso6 LassoPreprocessingBenchmarks: Lassos: inital142 mio100 ax100 hnf99 lsp94 ukn86 mio100 lsp51 div100 bol100 ite100 ukn100 eq160 hnf92 smp90 dnf100 smp100 tf100 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 46ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-15 17:05:03,380 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2021-12-15 17:05:03,592 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2021-12-15 17:05:03,794 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2021-12-15 17:05:03,992 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2021-12-15 17:05:04,193 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE