./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/insertion_sort-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/insertion_sort-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fa2d5ed9526c4edcc7e8525f0905ad082db62879 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 20:25:54,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:25:54,856 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:25:54,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:25:54,912 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:25:54,913 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:25:54,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:25:54,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:25:54,922 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:25:54,925 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:25:54,926 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:25:54,933 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:25:54,934 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:25:54,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:25:54,944 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:25:54,947 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:25:54,950 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:25:54,952 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:25:54,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:25:54,963 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:25:54,968 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:25:54,970 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:25:54,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:25:54,973 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:25:54,979 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:25:54,981 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:25:54,981 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:25:54,983 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:25:54,984 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:25:54,986 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:25:54,986 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:25:54,987 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:25:54,990 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:25:54,991 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:25:54,993 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:25:54,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:25:54,994 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:25:54,994 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:25:54,995 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:25:54,996 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:25:54,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:25:54,999 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 20:25:55,050 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:25:55,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:25:55,054 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:25:55,054 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:25:55,054 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:25:55,054 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 20:25:55,055 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 20:25:55,055 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 20:25:55,055 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 20:25:55,055 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 20:25:55,056 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 20:25:55,057 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:25:55,057 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:25:55,057 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 20:25:55,057 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:25:55,058 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:25:55,058 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:25:55,058 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 20:25:55,058 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 20:25:55,058 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 20:25:55,059 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:25:55,059 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:25:55,059 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 20:25:55,059 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:25:55,059 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 20:25:55,060 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:25:55,060 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:25:55,060 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 20:25:55,061 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:25:55,062 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:25:55,062 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:25:55,063 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 20:25:55,064 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 20:25:55,064 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:/tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa2d5ed9526c4edcc7e8525f0905ad082db62879 [2020-11-29 20:25:55,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:25:55,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:25:55,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:25:55,448 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:25:55,449 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:25:55,450 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/../../sv-benchmarks/c/loops/insertion_sort-2.c [2020-11-29 20:25:55,522 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/data/72586e81c/bbd181631f5343b3b197249c886e1ecc/FLAG81c5c527f [2020-11-29 20:25:55,915 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:25:55,916 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/sv-benchmarks/c/loops/insertion_sort-2.c [2020-11-29 20:25:55,923 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/data/72586e81c/bbd181631f5343b3b197249c886e1ecc/FLAG81c5c527f [2020-11-29 20:25:56,310 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/data/72586e81c/bbd181631f5343b3b197249c886e1ecc [2020-11-29 20:25:56,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:25:56,315 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:25:56,316 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:25:56,317 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:25:56,320 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:25:56,321 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:25:56" (1/1) ... [2020-11-29 20:25:56,323 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32b38f33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:56, skipping insertion in model container [2020-11-29 20:25:56,323 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:25:56" (1/1) ... [2020-11-29 20:25:56,331 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:25:56,344 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:25:56,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:25:56,563 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:25:56,615 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:25:56,633 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:25:56,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:56 WrapperNode [2020-11-29 20:25:56,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:25:56,638 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:25:56,638 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:25:56,638 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:25:56,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:56" (1/1) ... [2020-11-29 20:25:56,672 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:56" (1/1) ... [2020-11-29 20:25:56,704 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:25:56,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:25:56,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:25:56,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:25:56,715 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:56" (1/1) ... [2020-11-29 20:25:56,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:56" (1/1) ... [2020-11-29 20:25:56,721 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:56" (1/1) ... [2020-11-29 20:25:56,722 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:56" (1/1) ... [2020-11-29 20:25:56,739 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:56" (1/1) ... [2020-11-29 20:25:56,743 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:56" (1/1) ... [2020-11-29 20:25:56,749 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:56" (1/1) ... [2020-11-29 20:25:56,753 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:25:56,755 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:25:56,755 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:25:56,755 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:25:56,757 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:25:56,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:25:56,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:25:56,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 20:25:56,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:25:56,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:25:56,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 20:25:56,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 20:25:57,248 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:25:57,251 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-11-29 20:25:57,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:25:57 BoogieIcfgContainer [2020-11-29 20:25:57,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:25:57,254 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 20:25:57,254 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 20:25:57,257 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 20:25:57,258 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:25:57,258 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 08:25:56" (1/3) ... [2020-11-29 20:25:57,259 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@253d9b35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:25:57, skipping insertion in model container [2020-11-29 20:25:57,259 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:25:57,259 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:56" (2/3) ... [2020-11-29 20:25:57,260 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@253d9b35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:25:57, skipping insertion in model container [2020-11-29 20:25:57,260 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:25:57,260 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:25:57" (3/3) ... [2020-11-29 20:25:57,261 INFO L373 chiAutomizerObserver]: Analyzing ICFG insertion_sort-2.c [2020-11-29 20:25:57,312 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 20:25:57,313 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 20:25:57,313 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 20:25:57,313 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:25:57,313 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:25:57,313 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 20:25:57,314 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:25:57,314 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 20:25:57,341 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states. [2020-11-29 20:25:57,361 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 14 [2020-11-29 20:25:57,361 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:25:57,362 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:25:57,368 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-29 20:25:57,368 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 20:25:57,368 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 20:25:57,368 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states. [2020-11-29 20:25:57,371 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 14 [2020-11-29 20:25:57,371 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:25:57,371 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:25:57,372 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-29 20:25:57,372 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 20:25:57,379 INFO L794 eck$LassoCheckResult]: Stem: 16#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 14#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~nondet9, main_#t~post8, main_#t~mem11, main_#t~mem14, main_#t~mem12, main_#t~short13, main_#t~post10, main_#t~mem16, main_#t~mem17, main_#t~post15, main_~SIZE~0, main_~i~0, main_~j~0, main_~k~0, main_~key~0, main_~#v~0.base, main_~#v~0.offset;main_~SIZE~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~key~0;call main_~#v~0.base, main_~#v~0.offset := #Ultimate.allocOnStack(4 * (if main_~SIZE~0 % 4294967296 % 4294967296 <= 2147483647 then main_~SIZE~0 % 4294967296 % 4294967296 else main_~SIZE~0 % 4294967296 % 4294967296 - 4294967296));main_~j~0 := 0; 22#L17-3true [2020-11-29 20:25:57,380 INFO L796 eck$LassoCheckResult]: Loop: 22#L17-3true assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call write~int(main_#t~nondet9, main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet9; 3#L17-2true main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 22#L17-3true [2020-11-29 20:25:57,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:25:57,386 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-11-29 20:25:57,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:25:57,397 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876931691] [2020-11-29 20:25:57,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:25:57,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:25:57,519 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:25:57,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:25:57,545 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:25:57,567 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:25:57,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:25:57,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2020-11-29 20:25:57,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:25:57,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391046774] [2020-11-29 20:25:57,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:25:57,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:25:57,587 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:25:57,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:25:57,606 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:25:57,609 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:25:57,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:25:57,616 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2020-11-29 20:25:57,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:25:57,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634089369] [2020-11-29 20:25:57,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:25:57,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:25:57,675 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:25:57,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:25:57,730 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:25:57,737 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:25:58,146 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2020-11-29 20:25:58,309 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-11-29 20:25:58,324 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 20:25:58,327 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 20:25:58,327 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 20:25:58,327 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 20:25:58,327 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 20:25:58,328 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:25:58,328 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 20:25:58,328 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 20:25:58,329 INFO L133 ssoRankerPreferences]: Filename of dumped script: insertion_sort-2.c_Iteration1_Lasso [2020-11-29 20:25:58,329 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 20:25:58,329 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 20:25:58,364 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:25:58,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:25:58,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:25:58,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:25:58,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:25:58,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:25:58,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:25:58,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:25:58,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:25:58,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:25:58,413 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:25:58,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:25:58,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:25:58,431 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:25:58,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:25:58,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:25:58,445 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:25:58,962 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2020-11-29 20:25:59,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:25:59,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:25:59,329 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-11-29 20:25:59,838 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2020-11-29 20:25:59,948 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 20:25:59,953 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:25:59,967 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:25:59,972 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:25:59,972 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:25:59,973 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:25:59,973 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:25:59,973 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:25:59,977 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:25:59,978 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:25:59,980 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:00,024 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:00,033 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:00,033 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:00,033 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:00,033 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:00,044 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:00,045 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:00,049 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:00,091 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:00,093 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:00,093 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:00,094 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:00,094 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:00,094 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:00,095 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:00,095 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:00,097 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:00,139 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:00,141 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:00,141 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:00,141 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:00,141 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:00,141 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:00,142 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:00,142 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:00,144 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:00,175 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:00,177 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:00,177 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:00,177 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:00,177 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:00,177 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:00,178 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:00,178 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:00,186 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:00,210 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:00,211 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:00,211 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:00,211 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:00,211 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:00,220 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:00,220 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:00,227 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:00,269 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:00,270 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:00,271 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:00,271 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:00,271 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:00,271 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:00,272 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:00,272 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:00,274 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:00,316 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:00,317 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:00,318 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:00,318 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:00,318 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:00,321 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:00,321 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:00,325 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:00,366 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:00,368 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:00,368 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:00,368 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:00,368 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:00,369 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:00,369 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:00,370 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:00,372 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:00,416 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:00,418 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:00,419 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:00,419 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:00,419 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:00,419 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:00,420 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:00,420 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:00,422 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:00,464 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:00,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:00,466 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:00,466 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:00,466 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:00,466 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:00,467 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:00,467 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:00,469 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:00,512 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:00,514 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:00,514 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:00,514 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:00,514 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:00,514 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:00,515 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:00,515 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:00,522 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:00,568 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:00,570 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:00,570 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:00,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:00,571 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:00,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:00,573 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:00,573 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:00,575 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:00,616 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:00,618 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:00,618 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:00,618 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:00,618 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:00,619 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:00,619 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:00,620 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:00,621 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:00,664 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:00,666 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:00,666 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:00,666 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:00,666 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:00,667 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:00,667 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:00,668 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:00,670 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:00,714 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:00,715 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:00,716 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:00,716 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:00,716 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:00,716 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:00,717 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:00,717 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:00,718 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:00,760 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:00,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:00,762 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:00,762 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:00,762 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:00,765 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:00,765 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:00,778 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:00,812 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:00,814 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:00,814 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:00,814 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:00,814 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:00,820 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:00,820 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:00,824 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:00,849 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:00,850 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:00,850 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:00,850 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:00,850 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:00,854 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:00,855 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:00,859 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:00,890 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:00,891 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:00,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:00,892 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:00,892 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:00,894 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:00,894 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:00,897 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:00,920 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:00,922 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:00,922 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:00,922 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:00,923 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:00,925 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:00,926 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:00,932 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:00,957 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:00,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:00,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:00,959 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:00,959 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:00,961 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:00,962 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:00,971 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:01,016 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:01,018 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:01,018 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:01,019 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:01,019 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:01,021 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:01,021 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:01,028 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:01,056 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:01,058 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:01,058 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-11-29 20:26:01,058 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:01,058 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:01,087 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-11-29 20:26:01,087 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:01,115 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 20:26:01,248 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2020-11-29 20:26:01,248 INFO L444 ModelExtractionUtils]: 4 out of 19 variables were initially zero. Simplification set additionally 11 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:01,267 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:01,310 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 20:26:01,311 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 20:26:01,311 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#v~0.base)_1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~#v~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_~#v~0.base)_1 - 4*ULTIMATE.start_main_~j~0 - 1*ULTIMATE.start_main_~#v~0.offset Supporting invariants [] [2020-11-29 20:26:01,389 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2020-11-29 20:26:01,397 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 20:26:01,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:01,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:01,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 20:26:01,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:26:01,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:01,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 20:26:01,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:26:01,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:26:01,518 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 [2020-11-29 20:26:01,520 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states. Second operand 3 states. [2020-11-29 20:26:01,573 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states.. Second operand 3 states. Result 43 states and 63 transitions. Complement of second has 8 states. [2020-11-29 20:26:01,578 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 [2020-11-29 20:26:01,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 20:26:01,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2020-11-29 20:26:01,582 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 2 letters. Loop has 2 letters. [2020-11-29 20:26:01,583 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:26:01,583 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 4 letters. Loop has 2 letters. [2020-11-29 20:26:01,585 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:26:01,585 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 2 letters. Loop has 4 letters. [2020-11-29 20:26:01,585 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:26:01,586 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 63 transitions. [2020-11-29 20:26:01,595 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2020-11-29 20:26:01,599 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 19 states and 27 transitions. [2020-11-29 20:26:01,600 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2020-11-29 20:26:01,600 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2020-11-29 20:26:01,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 27 transitions. [2020-11-29 20:26:01,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:26:01,601 INFO L691 BuchiCegarLoop]: Abstraction has 19 states and 27 transitions. [2020-11-29 20:26:01,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 27 transitions. [2020-11-29 20:26:01,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-11-29 20:26:01,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-29 20:26:01,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 27 transitions. [2020-11-29 20:26:01,626 INFO L714 BuchiCegarLoop]: Abstraction has 19 states and 27 transitions. [2020-11-29 20:26:01,626 INFO L594 BuchiCegarLoop]: Abstraction has 19 states and 27 transitions. [2020-11-29 20:26:01,626 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 20:26:01,627 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 27 transitions. [2020-11-29 20:26:01,629 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2020-11-29 20:26:01,629 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:26:01,629 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:26:01,630 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-29 20:26:01,630 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-29 20:26:01,630 INFO L794 eck$LassoCheckResult]: Stem: 166#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 164#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet9, main_#t~post8, main_#t~mem11, main_#t~mem14, main_#t~mem12, main_#t~short13, main_#t~post10, main_#t~mem16, main_#t~mem17, main_#t~post15, main_~SIZE~0, main_~i~0, main_~j~0, main_~k~0, main_~key~0, main_~#v~0.base, main_~#v~0.offset;main_~SIZE~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~key~0;call main_~#v~0.base, main_~#v~0.offset := #Ultimate.allocOnStack(4 * (if main_~SIZE~0 % 4294967296 % 4294967296 <= 2147483647 then main_~SIZE~0 % 4294967296 % 4294967296 else main_~SIZE~0 % 4294967296 % 4294967296 - 4294967296));main_~j~0 := 0; 165#L17-3 assume !(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296); 167#L17-4 main_~j~0 := 1; 154#L19-3 [2020-11-29 20:26:01,630 INFO L796 eck$LassoCheckResult]: Loop: 154#L19-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call main_#t~mem11 := read~int(main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);main_~key~0 := main_#t~mem11;havoc main_#t~mem11;main_~i~0 := main_~j~0 - 1; 155#L22-5 assume !true; 156#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 157#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 154#L19-3 [2020-11-29 20:26:01,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:01,631 INFO L82 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 1 times [2020-11-29 20:26:01,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:01,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125115532] [2020-11-29 20:26:01,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:01,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:01,659 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:01,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:01,677 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:01,681 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:26:01,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:01,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1680277, now seen corresponding path program 1 times [2020-11-29 20:26:01,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:01,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321845672] [2020-11-29 20:26:01,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:01,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:01,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:26:01,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321845672] [2020-11-29 20:26:01,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:26:01,707 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:26:01,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438586171] [2020-11-29 20:26:01,710 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 20:26:01,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:26:01,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 20:26:01,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 20:26:01,715 INFO L87 Difference]: Start difference. First operand 19 states and 27 transitions. cyclomatic complexity: 11 Second operand 2 states. [2020-11-29 20:26:01,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:26:01,720 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2020-11-29 20:26:01,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 20:26:01,720 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2020-11-29 20:26:01,721 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2020-11-29 20:26:01,722 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 17 states and 22 transitions. [2020-11-29 20:26:01,722 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2020-11-29 20:26:01,722 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-11-29 20:26:01,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2020-11-29 20:26:01,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:26:01,722 INFO L691 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2020-11-29 20:26:01,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2020-11-29 20:26:01,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-11-29 20:26:01,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-29 20:26:01,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2020-11-29 20:26:01,725 INFO L714 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2020-11-29 20:26:01,725 INFO L594 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2020-11-29 20:26:01,725 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 20:26:01,725 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 22 transitions. [2020-11-29 20:26:01,726 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2020-11-29 20:26:01,726 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:26:01,726 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:26:01,726 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-29 20:26:01,726 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:26:01,727 INFO L794 eck$LassoCheckResult]: Stem: 206#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 204#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet9, main_#t~post8, main_#t~mem11, main_#t~mem14, main_#t~mem12, main_#t~short13, main_#t~post10, main_#t~mem16, main_#t~mem17, main_#t~post15, main_~SIZE~0, main_~i~0, main_~j~0, main_~k~0, main_~key~0, main_~#v~0.base, main_~#v~0.offset;main_~SIZE~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~key~0;call main_~#v~0.base, main_~#v~0.offset := #Ultimate.allocOnStack(4 * (if main_~SIZE~0 % 4294967296 % 4294967296 <= 2147483647 then main_~SIZE~0 % 4294967296 % 4294967296 else main_~SIZE~0 % 4294967296 % 4294967296 - 4294967296));main_~j~0 := 0; 205#L17-3 assume !(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296); 207#L17-4 main_~j~0 := 1; 196#L19-3 [2020-11-29 20:26:01,727 INFO L796 eck$LassoCheckResult]: Loop: 196#L19-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call main_#t~mem11 := read~int(main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);main_~key~0 := main_#t~mem11;havoc main_#t~mem11;main_~i~0 := main_~j~0 - 1; 197#L22-5 main_#t~short13 := main_~i~0 >= 0; 202#L22-1 assume main_#t~short13;call main_#t~mem12 := read~int(main_~#v~0.base, main_~#v~0.offset + 4 * main_~i~0, 4);main_#t~short13 := main_#t~mem12 > main_~key~0; 203#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 198#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 199#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 196#L19-3 [2020-11-29 20:26:01,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:01,727 INFO L82 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 2 times [2020-11-29 20:26:01,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:01,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358638121] [2020-11-29 20:26:01,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:01,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:01,745 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:01,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:01,762 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:01,766 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:26:01,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:01,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1602376654, now seen corresponding path program 1 times [2020-11-29 20:26:01,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:01,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087138542] [2020-11-29 20:26:01,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:01,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:01,780 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:01,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:01,791 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:01,793 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:26:01,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:01,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1970717784, now seen corresponding path program 1 times [2020-11-29 20:26:01,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:01,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098693771] [2020-11-29 20:26:01,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:01,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:01,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:26:01,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098693771] [2020-11-29 20:26:01,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:26:01,906 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 20:26:01,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915742068] [2020-11-29 20:26:02,069 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 53 [2020-11-29 20:26:02,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:26:02,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 20:26:02,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:26:02,115 INFO L87 Difference]: Start difference. First operand 17 states and 22 transitions. cyclomatic complexity: 8 Second operand 5 states. [2020-11-29 20:26:02,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:26:02,292 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2020-11-29 20:26:02,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 20:26:02,294 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 26 transitions. [2020-11-29 20:26:02,295 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2020-11-29 20:26:02,295 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 18 states and 22 transitions. [2020-11-29 20:26:02,295 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2020-11-29 20:26:02,296 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-11-29 20:26:02,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 22 transitions. [2020-11-29 20:26:02,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:26:02,296 INFO L691 BuchiCegarLoop]: Abstraction has 18 states and 22 transitions. [2020-11-29 20:26:02,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 22 transitions. [2020-11-29 20:26:02,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2020-11-29 20:26:02,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-29 20:26:02,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2020-11-29 20:26:02,298 INFO L714 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2020-11-29 20:26:02,298 INFO L594 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2020-11-29 20:26:02,298 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 20:26:02,298 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 21 transitions. [2020-11-29 20:26:02,301 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2020-11-29 20:26:02,301 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:26:02,301 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:26:02,302 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:26:02,302 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:26:02,302 INFO L794 eck$LassoCheckResult]: Stem: 257#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 255#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet9, main_#t~post8, main_#t~mem11, main_#t~mem14, main_#t~mem12, main_#t~short13, main_#t~post10, main_#t~mem16, main_#t~mem17, main_#t~post15, main_~SIZE~0, main_~i~0, main_~j~0, main_~k~0, main_~key~0, main_~#v~0.base, main_~#v~0.offset;main_~SIZE~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~key~0;call main_~#v~0.base, main_~#v~0.offset := #Ultimate.allocOnStack(4 * (if main_~SIZE~0 % 4294967296 % 4294967296 <= 2147483647 then main_~SIZE~0 % 4294967296 % 4294967296 else main_~SIZE~0 % 4294967296 % 4294967296 - 4294967296));main_~j~0 := 0; 256#L17-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call write~int(main_#t~nondet9, main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet9; 242#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 243#L17-3 assume !(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296); 258#L17-4 main_~j~0 := 1; 247#L19-3 [2020-11-29 20:26:02,303 INFO L796 eck$LassoCheckResult]: Loop: 247#L19-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call main_#t~mem11 := read~int(main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);main_~key~0 := main_#t~mem11;havoc main_#t~mem11;main_~i~0 := main_~j~0 - 1; 248#L22-5 main_#t~short13 := main_~i~0 >= 0; 253#L22-1 assume main_#t~short13;call main_#t~mem12 := read~int(main_~#v~0.base, main_~#v~0.offset + 4 * main_~i~0, 4);main_#t~short13 := main_#t~mem12 > main_~key~0; 254#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 249#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 250#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 247#L19-3 [2020-11-29 20:26:02,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:02,303 INFO L82 PathProgramCache]: Analyzing trace with hash 889660429, now seen corresponding path program 1 times [2020-11-29 20:26:02,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:02,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733078909] [2020-11-29 20:26:02,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:02,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:02,356 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:02,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:02,392 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:02,397 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:26:02,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:02,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1602376654, now seen corresponding path program 2 times [2020-11-29 20:26:02,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:02,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293074561] [2020-11-29 20:26:02,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:02,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:02,417 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:02,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:02,437 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:02,441 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:26:02,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:02,442 INFO L82 PathProgramCache]: Analyzing trace with hash 1315520218, now seen corresponding path program 1 times [2020-11-29 20:26:02,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:02,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390990626] [2020-11-29 20:26:02,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:02,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:02,709 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:26:02,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390990626] [2020-11-29 20:26:02,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133300849] [2020-11-29 20:26:02,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:26:02,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:02,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-29 20:26:02,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:26:02,811 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2020-11-29 20:26:02,812 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 20:26:02,842 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 20:26:02,852 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2020-11-29 20:26:02,853 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 20:26:02,882 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 20:26:02,882 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2020-11-29 20:26:02,883 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:48, output treesize:46 [2020-11-29 20:26:03,023 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 20:26:03,102 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 20:26:03,566 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 89 [2020-11-29 20:26:03,630 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 20:26:03,702 INFO L625 ElimStorePlain]: treesize reduction 85, result has 38.8 percent of original size [2020-11-29 20:26:03,718 INFO L545 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-11-29 20:26:03,718 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:126, output treesize:49 [2020-11-29 20:26:03,799 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:26:03,832 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:26:03,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 20:26:03,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2020-11-29 20:26:03,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065375231] [2020-11-29 20:26:03,997 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2020-11-29 20:26:04,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:26:04,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-29 20:26:04,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-11-29 20:26:04,039 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. cyclomatic complexity: 7 Second operand 11 states. [2020-11-29 20:26:04,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:26:04,522 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2020-11-29 20:26:04,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 20:26:04,523 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 29 transitions. [2020-11-29 20:26:04,524 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2020-11-29 20:26:04,525 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 21 states and 25 transitions. [2020-11-29 20:26:04,525 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2020-11-29 20:26:04,525 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2020-11-29 20:26:04,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 25 transitions. [2020-11-29 20:26:04,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:26:04,526 INFO L691 BuchiCegarLoop]: Abstraction has 21 states and 25 transitions. [2020-11-29 20:26:04,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 25 transitions. [2020-11-29 20:26:04,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2020-11-29 20:26:04,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-29 20:26:04,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2020-11-29 20:26:04,528 INFO L714 BuchiCegarLoop]: Abstraction has 20 states and 24 transitions. [2020-11-29 20:26:04,528 INFO L594 BuchiCegarLoop]: Abstraction has 20 states and 24 transitions. [2020-11-29 20:26:04,528 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-29 20:26:04,528 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 24 transitions. [2020-11-29 20:26:04,529 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2020-11-29 20:26:04,529 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:26:04,529 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:26:04,530 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2020-11-29 20:26:04,530 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:26:04,530 INFO L794 eck$LassoCheckResult]: Stem: 353#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 350#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet9, main_#t~post8, main_#t~mem11, main_#t~mem14, main_#t~mem12, main_#t~short13, main_#t~post10, main_#t~mem16, main_#t~mem17, main_#t~post15, main_~SIZE~0, main_~i~0, main_~j~0, main_~k~0, main_~key~0, main_~#v~0.base, main_~#v~0.offset;main_~SIZE~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~key~0;call main_~#v~0.base, main_~#v~0.offset := #Ultimate.allocOnStack(4 * (if main_~SIZE~0 % 4294967296 % 4294967296 <= 2147483647 then main_~SIZE~0 % 4294967296 % 4294967296 else main_~SIZE~0 % 4294967296 % 4294967296 - 4294967296));main_~j~0 := 0; 351#L17-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call write~int(main_#t~nondet9, main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet9; 337#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 338#L17-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call write~int(main_#t~nondet9, main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet9; 355#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 356#L17-3 assume !(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296); 354#L17-4 main_~j~0 := 1; 342#L19-3 [2020-11-29 20:26:04,530 INFO L796 eck$LassoCheckResult]: Loop: 342#L19-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call main_#t~mem11 := read~int(main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);main_~key~0 := main_#t~mem11;havoc main_#t~mem11;main_~i~0 := main_~j~0 - 1; 343#L22-5 main_#t~short13 := main_~i~0 >= 0; 348#L22-1 assume main_#t~short13;call main_#t~mem12 := read~int(main_~#v~0.base, main_~#v~0.offset + 4 * main_~i~0, 4);main_#t~short13 := main_#t~mem12 > main_~key~0; 352#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 344#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 345#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 342#L19-3 [2020-11-29 20:26:04,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:04,530 INFO L82 PathProgramCache]: Analyzing trace with hash 265236367, now seen corresponding path program 2 times [2020-11-29 20:26:04,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:04,531 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90720310] [2020-11-29 20:26:04,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:04,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:04,556 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:04,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:04,570 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:04,578 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:26:04,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:04,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1602376654, now seen corresponding path program 3 times [2020-11-29 20:26:04,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:04,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113655172] [2020-11-29 20:26:04,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:04,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:04,591 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:04,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:04,608 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:04,611 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:26:04,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:04,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1264115492, now seen corresponding path program 2 times [2020-11-29 20:26:04,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:04,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033095144] [2020-11-29 20:26:04,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:04,634 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:04,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:04,653 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:04,663 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:26:04,812 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2020-11-29 20:26:05,390 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 106 [2020-11-29 20:26:05,710 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78 [2020-11-29 20:26:05,713 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 20:26:05,713 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 20:26:05,713 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 20:26:05,713 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 20:26:05,713 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 20:26:05,713 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:05,713 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 20:26:05,713 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 20:26:05,713 INFO L133 ssoRankerPreferences]: Filename of dumped script: insertion_sort-2.c_Iteration5_Lasso [2020-11-29 20:26:05,713 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 20:26:05,713 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 20:26:05,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:05,764 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:05,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:05,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:05,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:05,784 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:05,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:05,791 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:05,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:05,799 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:05,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:05,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:05,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:05,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:05,817 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:05,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:05,825 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:05,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:06,051 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-11-29 20:26:06,703 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 20:26:06,703 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:06,718 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:06,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:06,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:06,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:06,720 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:06,722 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:06,722 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:06,726 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:06,767 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:06,768 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:06,768 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:06,769 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:06,769 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:06,769 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:06,769 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:06,769 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:06,772 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:06,807 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:06,809 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:06,809 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:06,809 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:06,809 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:06,811 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:06,838 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:06,843 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:06,884 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:06,886 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:06,886 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:06,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:06,887 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:06,887 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:06,887 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:06,887 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:06,889 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:06,926 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:06,927 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:06,928 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:06,928 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:06,928 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:06,928 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:06,929 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:06,929 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:06,930 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:06,972 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:06,974 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:06,974 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:06,974 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:06,974 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:06,974 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:06,975 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:06,975 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:06,977 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:07,014 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:07,015 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:07,016 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:07,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:07,016 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:07,016 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:07,016 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:07,017 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:07,018 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:07,056 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:07,059 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:07,059 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:07,059 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:07,059 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:07,062 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:07,062 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:07,066 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:07,104 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:07,105 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:07,106 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:07,106 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:07,106 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:07,106 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:07,107 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:07,107 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:07,108 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:07,148 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:07,150 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:07,150 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:07,150 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:07,150 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:07,150 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:07,158 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:07,158 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:07,160 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:07,197 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:07,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:07,199 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:07,199 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:07,199 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:07,199 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:07,200 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:07,200 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:07,202 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:07,240 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:07,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:07,242 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:07,242 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:07,242 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:07,242 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:07,243 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:07,243 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:07,245 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:07,285 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:07,287 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:07,287 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:07,287 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:07,287 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:07,287 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:07,288 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:07,288 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:07,290 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:07,331 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:07,333 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:07,333 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:07,333 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:07,333 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:07,333 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:07,334 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:07,334 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:07,337 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:07,375 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:07,377 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:07,377 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:07,377 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:07,377 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:07,377 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:07,378 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:07,378 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:07,380 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:07,404 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:07,405 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:07,405 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:07,406 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:07,406 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:07,406 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:07,406 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:07,406 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:07,409 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:07,432 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:07,434 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:07,434 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:07,434 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:07,434 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:07,436 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:07,436 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:07,451 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:07,492 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:07,494 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:07,494 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:07,494 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:07,494 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:07,496 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:07,497 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:07,501 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:07,533 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:07,534 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:07,534 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:07,534 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:07,534 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:07,536 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:07,536 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:07,539 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:07,567 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:07,570 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:07,570 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:07,570 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:07,570 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:07,570 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:07,572 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:07,572 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:07,579 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:07,605 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:07,607 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:07,607 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:07,607 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:07,607 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:07,609 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:07,610 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:07,612 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:07,641 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:07,642 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:07,642 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:07,642 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:07,642 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:07,644 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:07,644 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:07,647 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:07,670 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:07,672 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:07,672 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:07,672 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:07,672 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:07,692 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:07,692 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:07,715 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 20:26:07,772 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2020-11-29 20:26:07,772 INFO L444 ModelExtractionUtils]: 9 out of 19 variables were initially zero. Simplification set additionally 6 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:07,778 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:07,782 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-29 20:26:07,782 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 20:26:07,782 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#v~0.base)_2, ULTIMATE.start_main_~j~0) = 1*v_rep(select #length ULTIMATE.start_main_~#v~0.base)_2 - 2*ULTIMATE.start_main_~j~0 Supporting invariants [1*ULTIMATE.start_main_~#v~0.offset >= 0] [2020-11-29 20:26:07,841 INFO L297 tatePredicateManager]: 12 out of 13 supporting invariants were superfluous and have been removed [2020-11-29 20:26:07,843 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 20:26:07,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:07,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:07,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 20:26:07,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:26:07,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:07,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 20:26:07,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:26:07,958 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:26:08,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:26:08,039 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2020-11-29 20:26:08,039 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 24 transitions. cyclomatic complexity: 7 Second operand 6 states. [2020-11-29 20:26:08,260 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 24 transitions. cyclomatic complexity: 7. Second operand 6 states. Result 46 states and 60 transitions. Complement of second has 11 states. [2020-11-29 20:26:08,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 2 stem states 4 non-accepting loop states 1 accepting loop states [2020-11-29 20:26:08,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-11-29 20:26:08,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 28 transitions. [2020-11-29 20:26:08,261 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 28 transitions. Stem has 8 letters. Loop has 6 letters. [2020-11-29 20:26:08,262 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:26:08,262 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 28 transitions. Stem has 14 letters. Loop has 6 letters. [2020-11-29 20:26:08,263 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:26:08,263 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 28 transitions. Stem has 8 letters. Loop has 12 letters. [2020-11-29 20:26:08,263 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:26:08,263 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 60 transitions. [2020-11-29 20:26:08,265 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2020-11-29 20:26:08,266 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 38 states and 48 transitions. [2020-11-29 20:26:08,266 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2020-11-29 20:26:08,266 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2020-11-29 20:26:08,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 48 transitions. [2020-11-29 20:26:08,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 20:26:08,266 INFO L691 BuchiCegarLoop]: Abstraction has 38 states and 48 transitions. [2020-11-29 20:26:08,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 48 transitions. [2020-11-29 20:26:08,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2020-11-29 20:26:08,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-29 20:26:08,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 46 transitions. [2020-11-29 20:26:08,274 INFO L714 BuchiCegarLoop]: Abstraction has 36 states and 46 transitions. [2020-11-29 20:26:08,274 INFO L594 BuchiCegarLoop]: Abstraction has 36 states and 46 transitions. [2020-11-29 20:26:08,275 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-29 20:26:08,275 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 46 transitions. [2020-11-29 20:26:08,277 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2020-11-29 20:26:08,278 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:26:08,278 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:26:08,280 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2020-11-29 20:26:08,281 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:26:08,281 INFO L794 eck$LassoCheckResult]: Stem: 562#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 559#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet9, main_#t~post8, main_#t~mem11, main_#t~mem14, main_#t~mem12, main_#t~short13, main_#t~post10, main_#t~mem16, main_#t~mem17, main_#t~post15, main_~SIZE~0, main_~i~0, main_~j~0, main_~k~0, main_~key~0, main_~#v~0.base, main_~#v~0.offset;main_~SIZE~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~key~0;call main_~#v~0.base, main_~#v~0.offset := #Ultimate.allocOnStack(4 * (if main_~SIZE~0 % 4294967296 % 4294967296 <= 2147483647 then main_~SIZE~0 % 4294967296 % 4294967296 else main_~SIZE~0 % 4294967296 % 4294967296 - 4294967296));main_~j~0 := 0; 560#L17-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call write~int(main_#t~nondet9, main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet9; 539#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 540#L17-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call write~int(main_#t~nondet9, main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet9; 565#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 568#L17-3 assume !(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296); 563#L17-4 main_~j~0 := 1; 564#L19-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call main_#t~mem11 := read~int(main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);main_~key~0 := main_#t~mem11;havoc main_#t~mem11;main_~i~0 := main_~j~0 - 1; 547#L22-5 [2020-11-29 20:26:08,281 INFO L796 eck$LassoCheckResult]: Loop: 547#L22-5 main_#t~short13 := main_~i~0 >= 0; 567#L22-1 assume !main_#t~short13; 566#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 542#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 543#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 546#L19-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call main_#t~mem11 := read~int(main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);main_~key~0 := main_#t~mem11;havoc main_#t~mem11;main_~i~0 := main_~j~0 - 1; 547#L22-5 [2020-11-29 20:26:08,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:08,282 INFO L82 PathProgramCache]: Analyzing trace with hash -367607191, now seen corresponding path program 1 times [2020-11-29 20:26:08,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:08,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140510603] [2020-11-29 20:26:08,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:08,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:08,314 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:08,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:08,331 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:08,340 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:26:08,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:08,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1750324566, now seen corresponding path program 1 times [2020-11-29 20:26:08,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:08,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386673666] [2020-11-29 20:26:08,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:08,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:08,351 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:08,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:08,356 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:08,366 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:26:08,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:08,370 INFO L82 PathProgramCache]: Analyzing trace with hash -531027522, now seen corresponding path program 1 times [2020-11-29 20:26:08,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:08,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456243055] [2020-11-29 20:26:08,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:08,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:08,481 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-29 20:26:08,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456243055] [2020-11-29 20:26:08,481 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:26:08,482 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 20:26:08,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664507705] [2020-11-29 20:26:08,596 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2020-11-29 20:26:08,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:26:08,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 20:26:08,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:26:08,641 INFO L87 Difference]: Start difference. First operand 36 states and 46 transitions. cyclomatic complexity: 15 Second operand 5 states. [2020-11-29 20:26:08,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:26:08,733 INFO L93 Difference]: Finished difference Result 64 states and 79 transitions. [2020-11-29 20:26:08,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 20:26:08,735 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 79 transitions. [2020-11-29 20:26:08,737 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 24 [2020-11-29 20:26:08,738 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 64 states and 79 transitions. [2020-11-29 20:26:08,738 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2020-11-29 20:26:08,738 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2020-11-29 20:26:08,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 64 states and 79 transitions. [2020-11-29 20:26:08,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 20:26:08,739 INFO L691 BuchiCegarLoop]: Abstraction has 64 states and 79 transitions. [2020-11-29 20:26:08,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states and 79 transitions. [2020-11-29 20:26:08,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 38. [2020-11-29 20:26:08,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-11-29 20:26:08,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 48 transitions. [2020-11-29 20:26:08,750 INFO L714 BuchiCegarLoop]: Abstraction has 38 states and 48 transitions. [2020-11-29 20:26:08,750 INFO L594 BuchiCegarLoop]: Abstraction has 38 states and 48 transitions. [2020-11-29 20:26:08,750 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-11-29 20:26:08,750 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 48 transitions. [2020-11-29 20:26:08,751 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2020-11-29 20:26:08,755 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:26:08,756 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:26:08,756 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2020-11-29 20:26:08,757 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-29 20:26:08,757 INFO L794 eck$LassoCheckResult]: Stem: 678#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 674#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet9, main_#t~post8, main_#t~mem11, main_#t~mem14, main_#t~mem12, main_#t~short13, main_#t~post10, main_#t~mem16, main_#t~mem17, main_#t~post15, main_~SIZE~0, main_~i~0, main_~j~0, main_~k~0, main_~key~0, main_~#v~0.base, main_~#v~0.offset;main_~SIZE~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~key~0;call main_~#v~0.base, main_~#v~0.offset := #Ultimate.allocOnStack(4 * (if main_~SIZE~0 % 4294967296 % 4294967296 <= 2147483647 then main_~SIZE~0 % 4294967296 % 4294967296 else main_~SIZE~0 % 4294967296 % 4294967296 - 4294967296));main_~j~0 := 0; 675#L17-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call write~int(main_#t~nondet9, main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet9; 680#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 681#L17-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call write~int(main_#t~nondet9, main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet9; 651#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 652#L17-3 assume !(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296); 679#L17-4 main_~j~0 := 1; 656#L19-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call main_#t~mem11 := read~int(main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);main_~key~0 := main_#t~mem11;havoc main_#t~mem11;main_~i~0 := main_~j~0 - 1; 657#L22-5 [2020-11-29 20:26:08,757 INFO L796 eck$LassoCheckResult]: Loop: 657#L22-5 main_#t~short13 := main_~i~0 >= 0; 669#L22-1 assume main_#t~short13;call main_#t~mem12 := read~int(main_~#v~0.base, main_~#v~0.offset + 4 * main_~i~0, 4);main_#t~short13 := main_#t~mem12 > main_~key~0; 672#L22-3 assume !!main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12;call main_#t~mem14 := read~int(main_~#v~0.base, main_~#v~0.offset + 4 * main_~i~0, 4);call write~int(main_#t~mem14, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4);havoc main_#t~mem14;main_~i~0 := main_~i~0 - 1; 657#L22-5 [2020-11-29 20:26:08,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:08,759 INFO L82 PathProgramCache]: Analyzing trace with hash -367607191, now seen corresponding path program 2 times [2020-11-29 20:26:08,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:08,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050090036] [2020-11-29 20:26:08,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:08,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:08,779 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:08,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:08,817 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:08,820 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:26:08,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:08,821 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 1 times [2020-11-29 20:26:08,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:08,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185506155] [2020-11-29 20:26:08,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:08,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:08,835 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:08,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:08,839 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:08,840 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:26:08,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:08,841 INFO L82 PathProgramCache]: Analyzing trace with hash 780806620, now seen corresponding path program 1 times [2020-11-29 20:26:08,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:08,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710974813] [2020-11-29 20:26:08,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:08,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:08,859 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:08,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:08,876 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:08,888 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:26:09,611 WARN L193 SmtUtils]: Spent 594.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 120 [2020-11-29 20:26:10,003 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 91 [2020-11-29 20:26:10,011 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 20:26:10,011 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 20:26:10,011 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 20:26:10,012 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 20:26:10,012 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 20:26:10,012 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:10,012 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 20:26:10,012 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 20:26:10,012 INFO L133 ssoRankerPreferences]: Filename of dumped script: insertion_sort-2.c_Iteration7_Lasso [2020-11-29 20:26:10,012 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 20:26:10,012 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 20:26:10,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:10,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:10,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:10,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:10,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:10,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:10,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:10,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:10,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:10,321 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2020-11-29 20:26:10,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:10,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:10,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:10,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:10,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:10,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:10,402 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:10,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:10,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:10,806 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 20:26:10,806 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:10,810 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:10,811 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:10,811 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:10,811 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:10,811 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:10,811 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:10,812 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:10,812 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:10,813 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:10,838 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:10,840 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:10,840 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:10,840 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:10,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:10,840 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:10,840 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:10,840 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:10,842 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:10,865 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:10,866 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:10,867 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:10,867 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:10,867 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:10,868 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:10,869 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:10,875 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:10,899 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:10,900 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:10,900 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:10,900 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:10,900 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:10,900 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:10,901 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:10,901 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:10,903 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:10,928 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:10,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:10,930 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:10,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:10,930 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:10,930 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:10,931 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:10,932 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:10,940 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:10,963 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:10,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:10,964 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:10,964 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:10,964 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:10,965 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:10,965 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:10,968 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:10,992 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:10,993 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:10,993 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:10,993 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:10,993 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:10,993 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:10,994 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:10,994 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:10,995 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:11,017 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:11,018 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:11,018 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:11,018 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:11,018 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:11,018 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:11,019 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:11,019 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:11,020 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:11,042 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:11,044 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:11,044 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:11,044 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:11,044 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:11,045 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:11,045 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:11,048 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:11,070 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:11,071 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:11,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:11,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:11,072 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:11,077 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:11,077 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:11,091 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 20:26:11,157 INFO L443 ModelExtractionUtils]: Simplification made 20 calls to the SMT solver. [2020-11-29 20:26:11,157 INFO L444 ModelExtractionUtils]: 5 out of 22 variables were initially zero. Simplification set additionally 14 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:11,161 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:11,164 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 20:26:11,165 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 20:26:11,165 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 2*ULTIMATE.start_main_~i~0 + 1 Supporting invariants [] [2020-11-29 20:26:11,225 INFO L297 tatePredicateManager]: 14 out of 14 supporting invariants were superfluous and have been removed [2020-11-29 20:26:11,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:11,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:11,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 20:26:11,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:26:11,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:11,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 20:26:11,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:26:11,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:26:11,327 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-11-29 20:26:11,327 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 38 states and 48 transitions. cyclomatic complexity: 15 Second operand 4 states. [2020-11-29 20:26:11,395 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 38 states and 48 transitions. cyclomatic complexity: 15. Second operand 4 states. Result 89 states and 109 transitions. Complement of second has 9 states. [2020-11-29 20:26:11,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-11-29 20:26:11,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-29 20:26:11,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 35 transitions. [2020-11-29 20:26:11,398 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 9 letters. Loop has 3 letters. [2020-11-29 20:26:11,398 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:26:11,398 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 12 letters. Loop has 3 letters. [2020-11-29 20:26:11,398 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:26:11,398 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 9 letters. Loop has 6 letters. [2020-11-29 20:26:11,398 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:26:11,399 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 89 states and 109 transitions. [2020-11-29 20:26:11,401 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 25 [2020-11-29 20:26:11,407 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 89 states to 66 states and 82 transitions. [2020-11-29 20:26:11,408 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34 [2020-11-29 20:26:11,409 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2020-11-29 20:26:11,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 82 transitions. [2020-11-29 20:26:11,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 20:26:11,409 INFO L691 BuchiCegarLoop]: Abstraction has 66 states and 82 transitions. [2020-11-29 20:26:11,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 82 transitions. [2020-11-29 20:26:11,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 42. [2020-11-29 20:26:11,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-11-29 20:26:11,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 54 transitions. [2020-11-29 20:26:11,419 INFO L714 BuchiCegarLoop]: Abstraction has 42 states and 54 transitions. [2020-11-29 20:26:11,419 INFO L594 BuchiCegarLoop]: Abstraction has 42 states and 54 transitions. [2020-11-29 20:26:11,419 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-11-29 20:26:11,420 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 54 transitions. [2020-11-29 20:26:11,422 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2020-11-29 20:26:11,423 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:26:11,423 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:26:11,423 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2020-11-29 20:26:11,424 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-29 20:26:11,424 INFO L794 eck$LassoCheckResult]: Stem: 927#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 923#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet9, main_#t~post8, main_#t~mem11, main_#t~mem14, main_#t~mem12, main_#t~short13, main_#t~post10, main_#t~mem16, main_#t~mem17, main_#t~post15, main_~SIZE~0, main_~i~0, main_~j~0, main_~k~0, main_~key~0, main_~#v~0.base, main_~#v~0.offset;main_~SIZE~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~key~0;call main_~#v~0.base, main_~#v~0.offset := #Ultimate.allocOnStack(4 * (if main_~SIZE~0 % 4294967296 % 4294967296 <= 2147483647 then main_~SIZE~0 % 4294967296 % 4294967296 else main_~SIZE~0 % 4294967296 % 4294967296 - 4294967296));main_~j~0 := 0; 924#L17-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call write~int(main_#t~nondet9, main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet9; 929#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 930#L17-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call write~int(main_#t~nondet9, main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet9; 898#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 899#L17-3 assume !(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296); 928#L17-4 main_~j~0 := 1; 903#L19-3 assume !(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296); 900#L19-4 main_~k~0 := 1; 901#L28-3 [2020-11-29 20:26:11,424 INFO L796 eck$LassoCheckResult]: Loop: 901#L28-3 assume !!(main_~k~0 % 4294967296 < main_~SIZE~0 % 4294967296);call main_#t~mem16 := read~int(main_~#v~0.base, main_~#v~0.offset + 4 * (main_~k~0 - 1), 4);call main_#t~mem17 := read~int(main_~#v~0.base, main_~#v~0.offset + 4 * main_~k~0, 4);__VERIFIER_assert_#in~cond := (if main_#t~mem16 <= main_#t~mem17 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 911#L6 assume !(0 == __VERIFIER_assert_~cond); 912#L6-2 havoc main_#t~mem16;havoc main_#t~mem17; 902#L28-2 main_#t~post15 := main_~k~0;main_~k~0 := 1 + main_#t~post15;havoc main_#t~post15; 901#L28-3 [2020-11-29 20:26:11,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:11,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1489078955, now seen corresponding path program 1 times [2020-11-29 20:26:11,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:11,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444640565] [2020-11-29 20:26:11,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:11,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:11,609 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:26:11,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444640565] [2020-11-29 20:26:11,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114999608] [2020-11-29 20:26:11,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:26:11,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:11,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 20:26:11,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:26:11,671 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2020-11-29 20:26:11,671 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 20:26:11,784 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-11-29 20:26:11,784 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 20:26:11,791 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2020-11-29 20:26:11,791 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 20:26:11,822 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 20:26:11,823 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2020-11-29 20:26:11,823 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:48, output treesize:46 [2020-11-29 20:26:11,870 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:26:11,918 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:26:11,942 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2020-11-29 20:26:11,943 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 20:26:11,974 INFO L625 ElimStorePlain]: treesize reduction 30, result has 40.0 percent of original size [2020-11-29 20:26:11,975 INFO L513 ElimStorePlain]: Eliminatee |#length| vanished before elimination [2020-11-29 20:26:11,975 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-29 20:26:11,976 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:57, output treesize:11 [2020-11-29 20:26:12,031 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:26:12,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 20:26:12,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2020-11-29 20:26:12,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761820617] [2020-11-29 20:26:12,032 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 20:26:12,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:12,033 INFO L82 PathProgramCache]: Analyzing trace with hash 2718028, now seen corresponding path program 1 times [2020-11-29 20:26:12,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:12,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004407955] [2020-11-29 20:26:12,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:12,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:12,041 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:12,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:12,045 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:12,047 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:26:12,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:26:12,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 20:26:12,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-11-29 20:26:12,171 INFO L87 Difference]: Start difference. First operand 42 states and 54 transitions. cyclomatic complexity: 18 Second operand 10 states. [2020-11-29 20:26:12,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:26:12,479 INFO L93 Difference]: Finished difference Result 45 states and 56 transitions. [2020-11-29 20:26:12,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 20:26:12,480 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 56 transitions. [2020-11-29 20:26:12,480 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2020-11-29 20:26:12,481 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 45 states and 56 transitions. [2020-11-29 20:26:12,481 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2020-11-29 20:26:12,481 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2020-11-29 20:26:12,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 56 transitions. [2020-11-29 20:26:12,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 20:26:12,482 INFO L691 BuchiCegarLoop]: Abstraction has 45 states and 56 transitions. [2020-11-29 20:26:12,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 56 transitions. [2020-11-29 20:26:12,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2020-11-29 20:26:12,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-11-29 20:26:12,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 53 transitions. [2020-11-29 20:26:12,485 INFO L714 BuchiCegarLoop]: Abstraction has 42 states and 53 transitions. [2020-11-29 20:26:12,485 INFO L594 BuchiCegarLoop]: Abstraction has 42 states and 53 transitions. [2020-11-29 20:26:12,485 INFO L427 BuchiCegarLoop]: ======== Iteration 9============ [2020-11-29 20:26:12,485 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 53 transitions. [2020-11-29 20:26:12,485 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2020-11-29 20:26:12,485 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:26:12,485 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:26:12,486 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:26:12,486 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:26:12,486 INFO L794 eck$LassoCheckResult]: Stem: 1061#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 1056#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet9, main_#t~post8, main_#t~mem11, main_#t~mem14, main_#t~mem12, main_#t~short13, main_#t~post10, main_#t~mem16, main_#t~mem17, main_#t~post15, main_~SIZE~0, main_~i~0, main_~j~0, main_~k~0, main_~key~0, main_~#v~0.base, main_~#v~0.offset;main_~SIZE~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~key~0;call main_~#v~0.base, main_~#v~0.offset := #Ultimate.allocOnStack(4 * (if main_~SIZE~0 % 4294967296 % 4294967296 <= 2147483647 then main_~SIZE~0 % 4294967296 % 4294967296 else main_~SIZE~0 % 4294967296 % 4294967296 - 4294967296));main_~j~0 := 0; 1057#L17-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call write~int(main_#t~nondet9, main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet9; 1031#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 1032#L17-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call write~int(main_#t~nondet9, main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet9; 1063#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 1064#L17-3 assume !(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296); 1062#L17-4 main_~j~0 := 1; 1036#L19-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call main_#t~mem11 := read~int(main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);main_~key~0 := main_#t~mem11;havoc main_#t~mem11;main_~i~0 := main_~j~0 - 1; 1037#L22-5 main_#t~short13 := main_~i~0 >= 0; 1059#L22-1 assume main_#t~short13;call main_#t~mem12 := read~int(main_~#v~0.base, main_~#v~0.offset + 4 * main_~i~0, 4);main_#t~short13 := main_#t~mem12 > main_~key~0; 1060#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 1042#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 1043#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 1047#L19-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call main_#t~mem11 := read~int(main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);main_~key~0 := main_#t~mem11;havoc main_#t~mem11;main_~i~0 := main_~j~0 - 1; 1048#L22-5 [2020-11-29 20:26:12,486 INFO L796 eck$LassoCheckResult]: Loop: 1048#L22-5 main_#t~short13 := main_~i~0 >= 0; 1049#L22-1 assume !main_#t~short13; 1068#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 1040#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 1041#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 1046#L19-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call main_#t~mem11 := read~int(main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);main_~key~0 := main_#t~mem11;havoc main_#t~mem11;main_~i~0 := main_~j~0 - 1; 1048#L22-5 [2020-11-29 20:26:12,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:12,487 INFO L82 PathProgramCache]: Analyzing trace with hash -532874564, now seen corresponding path program 3 times [2020-11-29 20:26:12,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:12,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169063486] [2020-11-29 20:26:12,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:12,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:12,776 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2020-11-29 20:26:12,815 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:26:12,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169063486] [2020-11-29 20:26:12,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [3427812] [2020-11-29 20:26:12,815 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:26:12,867 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-11-29 20:26:12,867 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 20:26:12,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-29 20:26:12,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:26:12,879 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2020-11-29 20:26:12,880 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 20:26:12,901 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 20:26:12,907 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2020-11-29 20:26:12,907 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-29 20:26:12,936 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 20:26:12,937 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2020-11-29 20:26:12,937 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:48, output treesize:46 [2020-11-29 20:26:13,063 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 20:26:13,203 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:26:13,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 20:26:13,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2020-11-29 20:26:13,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775218669] [2020-11-29 20:26:13,204 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 20:26:13,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:13,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1750324566, now seen corresponding path program 2 times [2020-11-29 20:26:13,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:13,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700950719] [2020-11-29 20:26:13,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:13,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:13,209 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:13,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:13,212 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:13,214 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:26:13,316 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2020-11-29 20:26:13,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:26:13,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-29 20:26:13,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-11-29 20:26:13,346 INFO L87 Difference]: Start difference. First operand 42 states and 53 transitions. cyclomatic complexity: 17 Second operand 14 states. [2020-11-29 20:26:13,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:26:13,935 INFO L93 Difference]: Finished difference Result 62 states and 77 transitions. [2020-11-29 20:26:13,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 20:26:13,937 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 77 transitions. [2020-11-29 20:26:13,937 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 17 [2020-11-29 20:26:13,938 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 62 states and 77 transitions. [2020-11-29 20:26:13,938 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2020-11-29 20:26:13,938 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2020-11-29 20:26:13,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 77 transitions. [2020-11-29 20:26:13,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 20:26:13,938 INFO L691 BuchiCegarLoop]: Abstraction has 62 states and 77 transitions. [2020-11-29 20:26:13,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 77 transitions. [2020-11-29 20:26:13,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 56. [2020-11-29 20:26:13,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-11-29 20:26:13,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 71 transitions. [2020-11-29 20:26:13,941 INFO L714 BuchiCegarLoop]: Abstraction has 56 states and 71 transitions. [2020-11-29 20:26:13,941 INFO L594 BuchiCegarLoop]: Abstraction has 56 states and 71 transitions. [2020-11-29 20:26:13,941 INFO L427 BuchiCegarLoop]: ======== Iteration 10============ [2020-11-29 20:26:13,941 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 71 transitions. [2020-11-29 20:26:13,942 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2020-11-29 20:26:13,942 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:26:13,942 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:26:13,942 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:26:13,942 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-29 20:26:13,943 INFO L794 eck$LassoCheckResult]: Stem: 1229#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 1224#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet9, main_#t~post8, main_#t~mem11, main_#t~mem14, main_#t~mem12, main_#t~short13, main_#t~post10, main_#t~mem16, main_#t~mem17, main_#t~post15, main_~SIZE~0, main_~i~0, main_~j~0, main_~k~0, main_~key~0, main_~#v~0.base, main_~#v~0.offset;main_~SIZE~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~key~0;call main_~#v~0.base, main_~#v~0.offset := #Ultimate.allocOnStack(4 * (if main_~SIZE~0 % 4294967296 % 4294967296 <= 2147483647 then main_~SIZE~0 % 4294967296 % 4294967296 else main_~SIZE~0 % 4294967296 % 4294967296 - 4294967296));main_~j~0 := 0; 1225#L17-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call write~int(main_#t~nondet9, main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet9; 1202#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 1203#L17-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call write~int(main_#t~nondet9, main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet9; 1232#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 1245#L17-3 assume !(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296); 1246#L17-4 main_~j~0 := 1; 1256#L19-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call main_#t~mem11 := read~int(main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);main_~key~0 := main_#t~mem11;havoc main_#t~mem11;main_~i~0 := main_~j~0 - 1; 1250#L22-5 main_#t~short13 := main_~i~0 >= 0; 1226#L22-1 assume main_#t~short13;call main_#t~mem12 := read~int(main_~#v~0.base, main_~#v~0.offset + 4 * main_~i~0, 4);main_#t~short13 := main_#t~mem12 > main_~key~0; 1221#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 1210#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 1211#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 1207#L19-3 assume !(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296); 1204#L19-4 main_~k~0 := 1; 1205#L28-3 [2020-11-29 20:26:13,943 INFO L796 eck$LassoCheckResult]: Loop: 1205#L28-3 assume !!(main_~k~0 % 4294967296 < main_~SIZE~0 % 4294967296);call main_#t~mem16 := read~int(main_~#v~0.base, main_~#v~0.offset + 4 * (main_~k~0 - 1), 4);call main_#t~mem17 := read~int(main_~#v~0.base, main_~#v~0.offset + 4 * main_~k~0, 4);__VERIFIER_assert_#in~cond := (if main_#t~mem16 <= main_#t~mem17 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1214#L6 assume !(0 == __VERIFIER_assert_~cond); 1215#L6-2 havoc main_#t~mem16;havoc main_#t~mem17; 1206#L28-2 main_#t~post15 := main_~k~0;main_~k~0 := 1 + main_#t~post15;havoc main_#t~post15; 1205#L28-3 [2020-11-29 20:26:13,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:13,943 INFO L82 PathProgramCache]: Analyzing trace with hash 660757688, now seen corresponding path program 1 times [2020-11-29 20:26:13,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:13,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035364875] [2020-11-29 20:26:13,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:13,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:13,961 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:13,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:13,977 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:13,981 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:26:13,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:13,982 INFO L82 PathProgramCache]: Analyzing trace with hash 2718028, now seen corresponding path program 2 times [2020-11-29 20:26:13,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:13,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771879401] [2020-11-29 20:26:13,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:13,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:13,986 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:14,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:14,010 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:14,012 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:26:14,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:14,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1055874429, now seen corresponding path program 1 times [2020-11-29 20:26:14,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:14,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230271954] [2020-11-29 20:26:14,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:14,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:14,034 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:14,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:14,051 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:14,055 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:26:14,995 WARN L193 SmtUtils]: Spent 817.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 145 [2020-11-29 20:26:15,699 WARN L193 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 106 [2020-11-29 20:26:15,701 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 20:26:15,701 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 20:26:15,702 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 20:26:15,702 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 20:26:15,702 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 20:26:15,702 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:15,702 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 20:26:15,702 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 20:26:15,702 INFO L133 ssoRankerPreferences]: Filename of dumped script: insertion_sort-2.c_Iteration10_Lasso [2020-11-29 20:26:15,702 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 20:26:15,702 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 20:26:15,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:15,707 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:15,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:15,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:16,050 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2020-11-29 20:26:16,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:16,135 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:16,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:16,141 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:16,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:16,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:16,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:16,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:16,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:16,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:16,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:16,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:16,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:16,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:16,721 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 20:26:16,721 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:16,727 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:16,728 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:16,728 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:16,728 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:16,728 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:16,728 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:16,729 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:16,729 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:16,730 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:16,752 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:16,753 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:16,753 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:16,754 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:16,754 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:16,754 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:16,754 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:16,754 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:16,755 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:16,777 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:16,779 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:16,779 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:16,779 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:16,779 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:16,780 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:16,781 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:16,783 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:16,805 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:16,806 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:16,807 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:16,807 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:16,807 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:16,808 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:16,808 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:16,811 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:16,834 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:16,835 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:16,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:16,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:16,836 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:16,837 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:16,837 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:16,840 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:16,862 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:16,864 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:16,864 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:16,864 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:16,864 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:16,867 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:16,867 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:16,891 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:16,927 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:16,929 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:16,929 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:16,929 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:16,929 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:16,931 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:16,931 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:16,933 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:16,957 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:16,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:16,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:16,959 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:16,959 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:16,960 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:16,961 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:16,964 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:16,995 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:16,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:16,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:16,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:16,997 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:17,009 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:17,009 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:17,024 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 20:26:17,042 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2020-11-29 20:26:17,042 INFO L444 ModelExtractionUtils]: 8 out of 22 variables were initially zero. Simplification set additionally 10 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:17,044 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 20:26:17,046 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 20:26:17,047 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 20:26:17,047 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~#v~0.offset, v_rep(select #length ULTIMATE.start_main_~#v~0.base)_4, ULTIMATE.start_main_~k~0) = -1*ULTIMATE.start_main_~#v~0.offset + 1*v_rep(select #length ULTIMATE.start_main_~#v~0.base)_4 - 4*ULTIMATE.start_main_~k~0 Supporting invariants [] [2020-11-29 20:26:17,130 INFO L297 tatePredicateManager]: 18 out of 18 supporting invariants were superfluous and have been removed [2020-11-29 20:26:17,132 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 20:26:17,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:17,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:17,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 20:26:17,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:26:17,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:17,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 20:26:17,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:26:17,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:26:17,198 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 [2020-11-29 20:26:17,199 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 56 states and 71 transitions. cyclomatic complexity: 22 Second operand 3 states. [2020-11-29 20:26:17,223 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 56 states and 71 transitions. cyclomatic complexity: 22. Second operand 3 states. Result 60 states and 76 transitions. Complement of second has 4 states. [2020-11-29 20:26:17,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 20:26:17,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 20:26:17,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 20 transitions. [2020-11-29 20:26:17,224 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 16 letters. Loop has 4 letters. [2020-11-29 20:26:17,224 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:26:17,224 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 20 letters. Loop has 4 letters. [2020-11-29 20:26:17,224 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:26:17,224 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 20 transitions. Stem has 16 letters. Loop has 8 letters. [2020-11-29 20:26:17,225 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:26:17,225 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 60 states and 76 transitions. [2020-11-29 20:26:17,226 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2020-11-29 20:26:17,229 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 60 states to 39 states and 48 transitions. [2020-11-29 20:26:17,229 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-11-29 20:26:17,229 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-11-29 20:26:17,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 48 transitions. [2020-11-29 20:26:17,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 20:26:17,230 INFO L691 BuchiCegarLoop]: Abstraction has 39 states and 48 transitions. [2020-11-29 20:26:17,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 48 transitions. [2020-11-29 20:26:17,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-11-29 20:26:17,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-11-29 20:26:17,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2020-11-29 20:26:17,232 INFO L714 BuchiCegarLoop]: Abstraction has 39 states and 48 transitions. [2020-11-29 20:26:17,233 INFO L594 BuchiCegarLoop]: Abstraction has 39 states and 48 transitions. [2020-11-29 20:26:17,233 INFO L427 BuchiCegarLoop]: ======== Iteration 11============ [2020-11-29 20:26:17,233 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 48 transitions. [2020-11-29 20:26:17,233 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2020-11-29 20:26:17,233 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:26:17,234 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:26:17,234 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:26:17,234 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:26:17,235 INFO L794 eck$LassoCheckResult]: Stem: 1486#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 1472#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet9, main_#t~post8, main_#t~mem11, main_#t~mem14, main_#t~mem12, main_#t~short13, main_#t~post10, main_#t~mem16, main_#t~mem17, main_#t~post15, main_~SIZE~0, main_~i~0, main_~j~0, main_~k~0, main_~key~0, main_~#v~0.base, main_~#v~0.offset;main_~SIZE~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~key~0;call main_~#v~0.base, main_~#v~0.offset := #Ultimate.allocOnStack(4 * (if main_~SIZE~0 % 4294967296 % 4294967296 <= 2147483647 then main_~SIZE~0 % 4294967296 % 4294967296 else main_~SIZE~0 % 4294967296 % 4294967296 - 4294967296));main_~j~0 := 0; 1473#L17-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call write~int(main_#t~nondet9, main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet9; 1470#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 1471#L17-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call write~int(main_#t~nondet9, main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet9; 1494#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 1501#L17-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call write~int(main_#t~nondet9, main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet9; 1498#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 1497#L17-3 assume !(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296); 1491#L17-4 main_~j~0 := 1; 1478#L19-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call main_#t~mem11 := read~int(main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);main_~key~0 := main_#t~mem11;havoc main_#t~mem11;main_~i~0 := main_~j~0 - 1; 1479#L22-5 main_#t~short13 := main_~i~0 >= 0; 1476#L22-1 assume main_#t~short13;call main_#t~mem12 := read~int(main_~#v~0.base, main_~#v~0.offset + 4 * main_~i~0, 4);main_#t~short13 := main_#t~mem12 > main_~key~0; 1477#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 1503#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 1502#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 1500#L19-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call main_#t~mem11 := read~int(main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);main_~key~0 := main_#t~mem11;havoc main_#t~mem11;main_~i~0 := main_~j~0 - 1; 1499#L22-5 [2020-11-29 20:26:17,235 INFO L796 eck$LassoCheckResult]: Loop: 1499#L22-5 main_#t~short13 := main_~i~0 >= 0; 1496#L22-1 assume !main_#t~short13; 1495#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 1482#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 1483#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 1490#L19-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call main_#t~mem11 := read~int(main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);main_~key~0 := main_#t~mem11;havoc main_#t~mem11;main_~i~0 := main_~j~0 - 1; 1499#L22-5 [2020-11-29 20:26:17,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:17,235 INFO L82 PathProgramCache]: Analyzing trace with hash -610483846, now seen corresponding path program 4 times [2020-11-29 20:26:17,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:17,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405402884] [2020-11-29 20:26:17,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:17,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:17,252 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:17,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:17,279 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:17,283 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:26:17,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:17,287 INFO L82 PathProgramCache]: Analyzing trace with hash 1750324566, now seen corresponding path program 3 times [2020-11-29 20:26:17,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:17,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962770848] [2020-11-29 20:26:17,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:17,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:17,292 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:17,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:17,309 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:17,311 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:26:17,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:17,311 INFO L82 PathProgramCache]: Analyzing trace with hash -1301424113, now seen corresponding path program 1 times [2020-11-29 20:26:17,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:17,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701370904] [2020-11-29 20:26:17,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:17,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:17,365 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-11-29 20:26:17,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701370904] [2020-11-29 20:26:17,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889482971] [2020-11-29 20:26:17,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 75 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 75 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:26:17,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:17,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 20:26:17,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:26:17,442 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 20:26:17,446 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-11-29 20:26:17,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 20:26:17,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2020-11-29 20:26:17,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056090945] [2020-11-29 20:26:17,560 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2020-11-29 20:26:17,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:26:17,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 20:26:17,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-29 20:26:17,608 INFO L87 Difference]: Start difference. First operand 39 states and 48 transitions. cyclomatic complexity: 14 Second operand 7 states. [2020-11-29 20:26:17,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:26:17,779 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2020-11-29 20:26:17,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 20:26:17,780 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 48 transitions. [2020-11-29 20:26:17,781 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 20:26:17,781 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 39 states and 48 transitions. [2020-11-29 20:26:17,781 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-11-29 20:26:17,781 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-11-29 20:26:17,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 48 transitions. [2020-11-29 20:26:17,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 20:26:17,781 INFO L691 BuchiCegarLoop]: Abstraction has 39 states and 48 transitions. [2020-11-29 20:26:17,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 48 transitions. [2020-11-29 20:26:17,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 29. [2020-11-29 20:26:17,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-29 20:26:17,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2020-11-29 20:26:17,784 INFO L714 BuchiCegarLoop]: Abstraction has 29 states and 36 transitions. [2020-11-29 20:26:17,784 INFO L594 BuchiCegarLoop]: Abstraction has 29 states and 36 transitions. [2020-11-29 20:26:17,784 INFO L427 BuchiCegarLoop]: ======== Iteration 12============ [2020-11-29 20:26:17,784 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 36 transitions. [2020-11-29 20:26:17,784 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 20:26:17,784 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:26:17,784 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:26:17,785 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:26:17,785 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-29 20:26:17,785 INFO L794 eck$LassoCheckResult]: Stem: 1645#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 1630#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet9, main_#t~post8, main_#t~mem11, main_#t~mem14, main_#t~mem12, main_#t~short13, main_#t~post10, main_#t~mem16, main_#t~mem17, main_#t~post15, main_~SIZE~0, main_~i~0, main_~j~0, main_~k~0, main_~key~0, main_~#v~0.base, main_~#v~0.offset;main_~SIZE~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~key~0;call main_~#v~0.base, main_~#v~0.offset := #Ultimate.allocOnStack(4 * (if main_~SIZE~0 % 4294967296 % 4294967296 <= 2147483647 then main_~SIZE~0 % 4294967296 % 4294967296 else main_~SIZE~0 % 4294967296 % 4294967296 - 4294967296));main_~j~0 := 0; 1631#L17-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call write~int(main_#t~nondet9, main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet9; 1632#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 1633#L17-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call write~int(main_#t~nondet9, main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet9; 1649#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 1652#L17-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call write~int(main_#t~nondet9, main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet9; 1651#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 1650#L17-3 assume !(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296); 1646#L17-4 main_~j~0 := 1; 1640#L19-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call main_#t~mem11 := read~int(main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);main_~key~0 := main_#t~mem11;havoc main_#t~mem11;main_~i~0 := main_~j~0 - 1; 1641#L22-5 main_#t~short13 := main_~i~0 >= 0; 1656#L22-1 assume main_#t~short13;call main_#t~mem12 := read~int(main_~#v~0.base, main_~#v~0.offset + 4 * main_~i~0, 4);main_#t~short13 := main_#t~mem12 > main_~key~0; 1653#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 1638#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 1639#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 1642#L19-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call main_#t~mem11 := read~int(main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);main_~key~0 := main_#t~mem11;havoc main_#t~mem11;main_~i~0 := main_~j~0 - 1; 1644#L22-5 [2020-11-29 20:26:17,785 INFO L796 eck$LassoCheckResult]: Loop: 1644#L22-5 main_#t~short13 := main_~i~0 >= 0; 1634#L22-1 assume main_#t~short13;call main_#t~mem12 := read~int(main_~#v~0.base, main_~#v~0.offset + 4 * main_~i~0, 4);main_#t~short13 := main_#t~mem12 > main_~key~0; 1635#L22-3 assume !!main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12;call main_#t~mem14 := read~int(main_~#v~0.base, main_~#v~0.offset + 4 * main_~i~0, 4);call write~int(main_#t~mem14, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4);havoc main_#t~mem14;main_~i~0 := main_~i~0 - 1; 1644#L22-5 [2020-11-29 20:26:17,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:17,786 INFO L82 PathProgramCache]: Analyzing trace with hash -610483846, now seen corresponding path program 5 times [2020-11-29 20:26:17,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:17,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723592673] [2020-11-29 20:26:17,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:17,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:17,820 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:17,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:17,858 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:17,862 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:26:17,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:17,865 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 2 times [2020-11-29 20:26:17,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:17,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760945606] [2020-11-29 20:26:17,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:17,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:17,869 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:17,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:17,872 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:17,873 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:26:17,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:17,873 INFO L82 PathProgramCache]: Analyzing trace with hash -2032696021, now seen corresponding path program 1 times [2020-11-29 20:26:17,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:17,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325775123] [2020-11-29 20:26:17,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:17,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:17,897 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:17,933 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:17,938 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:26:18,980 WARN L193 SmtUtils]: Spent 939.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 156 [2020-11-29 20:26:19,351 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 104 [2020-11-29 20:26:19,354 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 20:26:19,354 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 20:26:19,354 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 20:26:19,354 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 20:26:19,354 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 20:26:19,354 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:19,354 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 20:26:19,354 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 20:26:19,354 INFO L133 ssoRankerPreferences]: Filename of dumped script: insertion_sort-2.c_Iteration12_Lasso [2020-11-29 20:26:19,354 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 20:26:19,354 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 20:26:19,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:19,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:19,363 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:19,366 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:19,369 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:19,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:19,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:19,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:19,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:19,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:19,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:19,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:19,716 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2020-11-29 20:26:19,836 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:19,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:19,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:19,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:19,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:19,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:20,292 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 20:26:20,292 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:20,296 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:20,297 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:20,298 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:20,298 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:20,298 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:20,300 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:20,300 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:20,304 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:20,325 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:20,327 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:20,327 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:20,327 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:20,327 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:20,328 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:20,328 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:20,331 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:20,352 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:20,353 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:20,354 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:20,354 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:20,354 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:20,354 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:20,354 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:20,354 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:20,355 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:20,378 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:20,379 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:20,379 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:20,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:20,379 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:20,379 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:20,380 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:20,380 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:20,381 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:20,403 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:20,404 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:20,404 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:20,404 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:20,404 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:20,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:20,405 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:20,405 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:20,406 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:20,427 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:20,428 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:20,428 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:20,429 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:20,429 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:20,429 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:20,429 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:20,429 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:20,430 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:20,452 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:20,453 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:20,453 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:20,453 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:20,453 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:20,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:20,453 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:20,454 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:20,455 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 83 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:20,506 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:20,508 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:20,508 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:20,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:20,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:20,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:20,508 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:20,509 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 83 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:20,510 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 84 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 84 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:20,534 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:20,535 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:20,535 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:20,535 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:20,535 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:20,535 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:20,536 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:20,536 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:20,538 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 85 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 85 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:20,560 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:20,562 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:20,562 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:20,562 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:20,562 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:20,562 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:20,562 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:20,562 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:20,563 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 86 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 86 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:20,586 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:20,587 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:20,587 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:20,587 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:20,587 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:20,587 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:20,588 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:20,588 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:20,589 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 87 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 87 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:20,610 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:20,612 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:20,612 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:20,612 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:20,612 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:20,614 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:20,614 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:20,618 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 88 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 88 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:20,640 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:20,642 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:20,642 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:20,642 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:20,642 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:20,644 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:20,644 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:20,648 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 89 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 89 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:20,670 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:20,671 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:20,671 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:20,672 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:20,672 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:20,673 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:20,673 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:20,675 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 90 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 90 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:20,702 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:20,703 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:20,703 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:20,703 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:20,703 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:20,705 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:20,705 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:20,707 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 91 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 91 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:20,729 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:20,730 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:20,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:20,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:20,731 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:20,733 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:20,733 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:20,737 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 92 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 92 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:20,760 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:20,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:20,761 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:20,761 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:20,761 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:20,762 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:20,762 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:20,765 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 93 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 93 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:20,786 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:20,788 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:20,788 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:20,788 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:20,788 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:20,789 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:20,789 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:20,791 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 94 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 94 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:20,813 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:20,814 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:20,815 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:20,815 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:20,815 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:20,816 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:20,816 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:20,819 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 95 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:20,841 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 95 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:20,844 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:20,844 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:20,844 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:20,844 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:20,845 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:20,846 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:20,852 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 96 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 96 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:20,874 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:20,875 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:20,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:20,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:20,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:20,877 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:20,877 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:20,879 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 97 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 97 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:20,901 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:20,902 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:20,902 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:20,902 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:20,903 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:20,905 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:20,905 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:20,910 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 98 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 98 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:20,936 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:20,937 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:20,937 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:20,937 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:20,937 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:20,937 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:20,938 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:20,938 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:20,939 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 99 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 99 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:20,968 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:26:20,970 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:20,970 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:20,970 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:20,971 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:20,975 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:20,975 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:20,983 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 20:26:21,003 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2020-11-29 20:26:21,003 INFO L444 ModelExtractionUtils]: 3 out of 19 variables were initially zero. Simplification set additionally 13 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d500616-98ec-4de8-a90e-a66bea75c178/bin/uautomizer/z3 Starting monitored process 100 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 100 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:21,005 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 20:26:21,007 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 20:26:21,007 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 20:26:21,007 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#v~0.base)_5, ULTIMATE.start_main_~i~0) = 1*v_rep(select #length ULTIMATE.start_main_~#v~0.base)_5 + 16*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-11-29 20:26:21,091 INFO L297 tatePredicateManager]: 24 out of 24 supporting invariants were superfluous and have been removed [2020-11-29 20:26:21,092 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 20:26:21,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:21,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:21,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 20:26:21,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:26:21,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:21,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 20:26:21,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:26:21,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:26:21,167 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-11-29 20:26:21,167 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 36 transitions. cyclomatic complexity: 11 Second operand 4 states. [2020-11-29 20:26:21,209 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 36 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 49 states and 60 transitions. Complement of second has 9 states. [2020-11-29 20:26:21,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-11-29 20:26:21,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-29 20:26:21,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2020-11-29 20:26:21,210 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 17 letters. Loop has 3 letters. [2020-11-29 20:26:21,210 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:26:21,210 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 20:26:21,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:21,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:21,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 20:26:21,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:26:21,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:21,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 20:26:21,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:26:21,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:26:21,346 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2020-11-29 20:26:21,346 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 36 transitions. cyclomatic complexity: 11 Second operand 4 states. [2020-11-29 20:26:21,386 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 36 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 49 states and 60 transitions. Complement of second has 9 states. [2020-11-29 20:26:21,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-11-29 20:26:21,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-29 20:26:21,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2020-11-29 20:26:21,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 17 letters. Loop has 3 letters. [2020-11-29 20:26:21,388 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:26:21,388 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 20:26:21,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:21,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:21,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 20:26:21,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:26:21,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:21,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 20:26:21,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:26:21,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:26:21,509 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 3 loop predicates [2020-11-29 20:26:21,509 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 36 transitions. cyclomatic complexity: 11 Second operand 4 states. [2020-11-29 20:26:21,560 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 36 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 51 states and 65 transitions. Complement of second has 8 states. [2020-11-29 20:26:21,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-11-29 20:26:21,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-29 20:26:21,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2020-11-29 20:26:21,564 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 17 letters. Loop has 3 letters. [2020-11-29 20:26:21,565 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:26:21,565 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 20 letters. Loop has 3 letters. [2020-11-29 20:26:21,565 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:26:21,565 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 17 letters. Loop has 6 letters. [2020-11-29 20:26:21,566 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:26:21,566 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 65 transitions. [2020-11-29 20:26:21,566 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 20:26:21,567 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 0 states and 0 transitions. [2020-11-29 20:26:21,567 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 20:26:21,567 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 20:26:21,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 20:26:21,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:26:21,567 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:26:21,567 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:26:21,567 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:26:21,567 INFO L427 BuchiCegarLoop]: ======== Iteration 13============ [2020-11-29 20:26:21,567 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 20:26:21,567 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 20:26:21,567 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 20:26:21,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 08:26:21 BoogieIcfgContainer [2020-11-29 20:26:21,581 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 20:26:21,582 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:26:21,582 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:26:21,582 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:26:21,583 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:25:57" (3/4) ... [2020-11-29 20:26:21,586 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 20:26:21,587 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:26:21,588 INFO L168 Benchmark]: Toolchain (without parser) took 25272.89 ms. Allocated memory was 92.3 MB in the beginning and 283.1 MB in the end (delta: 190.8 MB). Free memory was 56.8 MB in the beginning and 223.2 MB in the end (delta: -166.4 MB). Peak memory consumption was 24.0 MB. Max. memory is 16.1 GB. [2020-11-29 20:26:21,588 INFO L168 Benchmark]: CDTParser took 0.77 ms. Allocated memory is still 92.3 MB. Free memory is still 72.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:26:21,589 INFO L168 Benchmark]: CACSL2BoogieTranslator took 320.93 ms. Allocated memory is still 92.3 MB. Free memory was 56.6 MB in the beginning and 69.6 MB in the end (delta: -12.9 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2020-11-29 20:26:21,589 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.50 ms. Allocated memory is still 92.3 MB. Free memory was 69.4 MB in the beginning and 67.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:26:21,589 INFO L168 Benchmark]: Boogie Preprocessor took 48.58 ms. Allocated memory is still 92.3 MB. Free memory was 67.8 MB in the beginning and 66.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:26:21,590 INFO L168 Benchmark]: RCFGBuilder took 498.40 ms. Allocated memory is still 92.3 MB. Free memory was 66.6 MB in the beginning and 51.3 MB in the end (delta: 15.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-29 20:26:21,590 INFO L168 Benchmark]: BuchiAutomizer took 24327.26 ms. Allocated memory was 92.3 MB in the beginning and 283.1 MB in the end (delta: 190.8 MB). Free memory was 51.1 MB in the beginning and 223.2 MB in the end (delta: -172.1 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:26:21,590 INFO L168 Benchmark]: Witness Printer took 5.22 ms. Allocated memory is still 283.1 MB. Free memory is still 223.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:26:21,593 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.77 ms. Allocated memory is still 92.3 MB. Free memory is still 72.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 320.93 ms. Allocated memory is still 92.3 MB. Free memory was 56.6 MB in the beginning and 69.6 MB in the end (delta: -12.9 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 66.50 ms. Allocated memory is still 92.3 MB. Free memory was 69.4 MB in the beginning and 67.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.58 ms. Allocated memory is still 92.3 MB. Free memory was 67.8 MB in the beginning and 66.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 498.40 ms. Allocated memory is still 92.3 MB. Free memory was 66.6 MB in the beginning and 51.3 MB in the end (delta: 15.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 24327.26 ms. Allocated memory was 92.3 MB in the beginning and 283.1 MB in the end (delta: 190.8 MB). Free memory was 51.1 MB in the beginning and 223.2 MB in the end (delta: -172.1 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. * Witness Printer took 5.22 ms. Allocated memory is still 283.1 MB. Free memory is still 223.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 12 terminating modules (7 trivial, 4 deterministic, 1 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[v] + -4 * j + -1 * v and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[v] + -2 * j and consists of 7 locations. One deterministic module has affine ranking function 2 * i + 1 and consists of 5 locations. One deterministic module has affine ranking function -1 * v + unknown-#length-unknown[v] + -4 * k and consists of 3 locations. One nondeterministic module has affine ranking function unknown-#length-unknown[v] + 16 * i and consists of 5 locations. 7 modules have a trivial ranking function, the largest among these consists of 14 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 24.2s and 13 iterations. TraceHistogramMax:3. Analysis of lassos took 20.8s. Construction of modules took 0.9s. Büchi inclusion checks took 2.2s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 7. Automata minimization 0.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 73 StatesRemovedByMinimization, 8 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 56 states and ocurred in iteration 9. Nontrivial modules had stage [4, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 195 SDtfs, 372 SDslu, 281 SDs, 0 SdLazy, 532 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc4 concLT0 SILN0 SILU2 SILI0 SILT0 lasso5 LassoPreprocessingBenchmarks: Lassos: inital275 mio100 ax100 hnf99 lsp99 ukn56 mio100 lsp54 div200 bol100 ite100 ukn100 eq152 hnf60 smp86 dnf123 smp91 tf100 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 258ms VariablesStem: 7 VariablesLoop: 9 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...