./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/insertion_sort-1.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_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/insertion_sort-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 25b1595a40c04d1f29f2431a3990f69b3ca92105 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:56:01,866 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:56:01,868 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:56:01,918 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:56:01,919 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:56:01,925 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:56:01,929 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:56:01,938 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:56:01,941 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:56:01,949 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:56:01,950 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:56:01,953 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:56:01,953 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:56:01,958 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:56:01,959 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:56:01,962 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:56:01,963 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:56:01,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:56:01,972 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:56:01,979 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:56:01,982 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:56:01,984 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:56:01,987 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:56:01,989 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:56:01,995 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:56:01,995 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:56:01,996 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:56:01,998 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:56:01,999 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:56:02,000 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:56:02,001 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:56:02,002 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:56:02,004 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:56:02,006 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:56:02,007 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:56:02,008 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:56:02,009 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:56:02,009 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:56:02,009 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:56:02,010 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:56:02,011 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:56:02,013 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:56:02,061 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:56:02,061 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:56:02,063 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:56:02,063 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:56:02,064 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:56:02,064 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:56:02,064 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:56:02,064 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:56:02,065 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:56:02,065 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:56:02,066 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:56:02,066 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:56:02,067 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:56:02,067 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:56:02,067 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:56:02,067 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:56:02,068 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:56:02,068 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:56:02,068 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:56:02,068 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:56:02,068 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:56:02,069 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:56:02,069 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:56:02,069 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:56:02,070 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:56:02,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:56:02,070 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:56:02,071 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:56:02,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:56:02,072 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:56:02,073 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:56:02,073 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:56:02,074 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:56:02,075 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_7f610526-cbbe-4b70-9266-718a9d7f6899/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25b1595a40c04d1f29f2431a3990f69b3ca92105 [2020-11-30 00:56:02,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:56:02,419 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:56:02,424 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:56:02,425 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:56:02,427 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:56:02,428 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/../../sv-benchmarks/c/loops/insertion_sort-1.c [2020-11-30 00:56:02,515 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/data/9855e4fa1/0b91ef565b264157876a372a6ee62758/FLAG743e2dd7f [2020-11-30 00:56:03,063 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:56:03,064 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/sv-benchmarks/c/loops/insertion_sort-1.c [2020-11-30 00:56:03,084 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/data/9855e4fa1/0b91ef565b264157876a372a6ee62758/FLAG743e2dd7f [2020-11-30 00:56:03,426 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/data/9855e4fa1/0b91ef565b264157876a372a6ee62758 [2020-11-30 00:56:03,428 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:56:03,430 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:56:03,431 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:56:03,432 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:56:03,435 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:56:03,436 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:56:03" (1/1) ... [2020-11-30 00:56:03,438 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e2e5585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:03, skipping insertion in model container [2020-11-30 00:56:03,438 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:56:03" (1/1) ... [2020-11-30 00:56:03,455 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:56:03,471 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:56:03,680 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:56:03,691 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:56:03,739 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:56:03,754 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:56:03,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:03 WrapperNode [2020-11-30 00:56:03,758 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:56:03,760 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:56:03,761 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:56:03,762 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:56:03,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:03" (1/1) ... [2020-11-30 00:56:03,787 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:03" (1/1) ... [2020-11-30 00:56:03,816 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:56:03,817 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:56:03,818 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:56:03,818 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:56:03,827 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:03" (1/1) ... [2020-11-30 00:56:03,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:03" (1/1) ... [2020-11-30 00:56:03,833 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:03" (1/1) ... [2020-11-30 00:56:03,834 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:03" (1/1) ... [2020-11-30 00:56:03,851 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:03" (1/1) ... [2020-11-30 00:56:03,856 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:03" (1/1) ... [2020-11-30 00:56:03,857 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:03" (1/1) ... [2020-11-30 00:56:03,859 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:56:03,860 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:56:03,860 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:56:03,861 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:56:03,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:03,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:56:03,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:56:03,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 00:56:03,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:56:03,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:56:03,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 00:56:03,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:56:04,470 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:56:04,471 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-11-30 00:56:04,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:56:04 BoogieIcfgContainer [2020-11-30 00:56:04,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:56:04,475 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:56:04,475 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:56:04,480 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:56:04,481 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:56:04,481 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:56:03" (1/3) ... [2020-11-30 00:56:04,483 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@244b9b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:56:04, skipping insertion in model container [2020-11-30 00:56:04,483 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:56:04,483 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:56:03" (2/3) ... [2020-11-30 00:56:04,484 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@244b9b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:56:04, skipping insertion in model container [2020-11-30 00:56:04,484 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:56:04,484 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:56:04" (3/3) ... [2020-11-30 00:56:04,486 INFO L373 chiAutomizerObserver]: Analyzing ICFG insertion_sort-1.c [2020-11-30 00:56:04,554 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:56:04,554 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:56:04,555 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:56:04,555 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:56:04,555 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:56:04,555 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:56:04,555 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:56:04,556 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:56:04,574 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states. [2020-11-30 00:56:04,600 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 16 [2020-11-30 00:56:04,619 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:56:04,619 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:56:04,625 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-30 00:56:04,626 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:56:04,626 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:56:04,626 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states. [2020-11-30 00:56:04,629 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 16 [2020-11-30 00:56:04,629 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:56:04,629 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:56:04,629 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-30 00:56:04,629 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:56:04,637 INFO L794 eck$LassoCheckResult]: Stem: 18#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; 24#L17-3true [2020-11-30 00:56:04,637 INFO L796 eck$LassoCheckResult]: Loop: 24#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; 24#L17-3true [2020-11-30 00:56:04,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:04,644 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-11-30 00:56:04,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:04,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997412702] [2020-11-30 00:56:04,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:04,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:04,767 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:04,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:04,789 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:04,811 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:04,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:04,816 INFO L82 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2020-11-30 00:56:04,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:04,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146957306] [2020-11-30 00:56:04,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:04,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:04,845 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:04,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:04,863 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:04,869 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:04,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:04,881 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2020-11-30 00:56:04,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:04,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334523907] [2020-11-30 00:56:04,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:04,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:04,941 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:04,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:04,984 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:04,998 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:05,383 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2020-11-30 00:56:05,565 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-11-30 00:56:05,583 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:56:05,591 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:56:05,591 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:56:05,592 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:56:05,594 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:56:05,595 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:05,595 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:56:05,595 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:56:05,595 INFO L133 ssoRankerPreferences]: Filename of dumped script: insertion_sort-1.c_Iteration1_Lasso [2020-11-30 00:56:05,595 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:56:05,596 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:56:05,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:05,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:05,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:05,646 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:05,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:05,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:05,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:05,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:05,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:05,667 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:05,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:05,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:05,676 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:05,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:05,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:05,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:05,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:06,209 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2020-11-30 00:56:06,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:06,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:06,578 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-11-30 00:56:07,030 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2020-11-30 00:56:07,108 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:56:07,113 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:07,122 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 [2020-11-30 00:56:07,124 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:07,125 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:07,125 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:07,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:07,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:07,128 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:07,128 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:07,144 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) [2020-11-30 00:56:07,189 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 [2020-11-30 00:56:07,191 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:07,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:07,192 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:07,192 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:07,196 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:07,196 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:07,200 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:07,236 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:56:07,237 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:07,237 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:07,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:07,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:07,238 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:07,243 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:07,244 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:07,245 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) [2020-11-30 00:56:07,296 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 [2020-11-30 00:56:07,298 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:07,298 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:07,299 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:07,299 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:07,299 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:07,301 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:07,301 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 [2020-11-30 00:56:07,303 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:07,328 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 [2020-11-30 00:56:07,330 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:07,330 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:07,330 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:07,330 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:07,330 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:07,331 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:07,331 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:07,339 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:07,368 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 [2020-11-30 00:56:07,371 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:07,371 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:07,372 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:07,372 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:07,381 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:07,381 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:56:07,385 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:07,408 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 [2020-11-30 00:56:07,409 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:07,409 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:07,409 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:07,410 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:07,410 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:07,410 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:07,410 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:07,412 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:07,437 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 [2020-11-30 00:56:07,438 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:07,438 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:07,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:07,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:07,438 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:07,439 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:07,439 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:07,440 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:07,463 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 [2020-11-30 00:56:07,464 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:07,465 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:07,465 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:07,465 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:07,471 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:07,471 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:56:07,475 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:07,498 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 [2020-11-30 00:56:07,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:07,500 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:07,500 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:07,500 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:07,500 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:07,501 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:07,501 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:07,508 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:07,531 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 [2020-11-30 00:56:07,532 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:07,532 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:07,533 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:07,533 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:07,533 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:07,534 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:07,534 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:07,541 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:07,568 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 [2020-11-30 00:56:07,569 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:07,569 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:07,570 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:07,570 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:07,570 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:07,571 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:07,583 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:07,586 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:07,612 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 [2020-11-30 00:56:07,614 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:07,614 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:07,614 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:07,614 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:07,614 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:07,615 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:07,615 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:07,616 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:07,641 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 [2020-11-30 00:56:07,642 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:07,642 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:07,643 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:07,643 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:07,643 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:07,644 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:07,644 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:07,645 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:07,672 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 [2020-11-30 00:56:07,673 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:07,673 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:07,674 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:07,674 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:07,674 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:07,674 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:07,674 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:07,675 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:07,699 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 [2020-11-30 00:56:07,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:07,702 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:07,702 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:07,702 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:07,702 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:07,702 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:07,703 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:07,704 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:07,727 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 [2020-11-30 00:56:07,728 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:07,728 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:07,728 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:07,728 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:07,735 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:07,736 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:56:07,740 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:07,766 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 [2020-11-30 00:56:07,767 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:07,767 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:07,767 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:07,767 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:07,770 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:07,770 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:56:07,772 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:07,796 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 [2020-11-30 00:56:07,798 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:07,798 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:07,798 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:07,798 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:07,801 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:07,801 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:56:07,808 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:07,838 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 [2020-11-30 00:56:07,839 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:07,840 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:07,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:07,840 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:07,842 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:07,842 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:56:07,847 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:07,873 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 [2020-11-30 00:56:07,875 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:07,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:07,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:07,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:07,877 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:07,878 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:56:07,883 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:07,917 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 [2020-11-30 00:56:07,919 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:07,920 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:07,920 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:07,920 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:07,924 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:07,924 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:56:07,928 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:07,951 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 [2020-11-30 00:56:07,953 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:07,953 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:07,954 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:07,954 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:07,957 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:07,957 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:56:07,962 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:07,986 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 [2020-11-30 00:56:07,988 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:07,988 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-11-30 00:56:07,988 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:07,988 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:08,002 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-11-30 00:56:08,002 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:56:08,018 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:56:08,187 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2020-11-30 00:56:08,187 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_7f610526-cbbe-4b70-9266-718a9d7f6899/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) [2020-11-30 00:56:08,211 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 [2020-11-30 00:56:08,215 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-30 00:56:08,215 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:56:08,216 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 [] [2020-11-30 00:56:08,291 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2020-11-30 00:56:08,299 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 00:56:08,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:08,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:08,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:56:08,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:08,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:08,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:56:08,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:08,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:08,414 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 [2020-11-30 00:56:08,415 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states. Second operand 3 states. [2020-11-30 00:56:08,467 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states.. Second operand 3 states. Result 47 states and 69 transitions. Complement of second has 8 states. [2020-11-30 00:56:08,468 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 [2020-11-30 00:56:08,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-30 00:56:08,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2020-11-30 00:56:08,471 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 2 letters. Loop has 2 letters. [2020-11-30 00:56:08,471 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:56:08,472 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 4 letters. Loop has 2 letters. [2020-11-30 00:56:08,472 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:56:08,472 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 2 letters. Loop has 4 letters. [2020-11-30 00:56:08,472 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:56:08,473 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 69 transitions. [2020-11-30 00:56:08,476 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2020-11-30 00:56:08,480 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 21 states and 30 transitions. [2020-11-30 00:56:08,481 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2020-11-30 00:56:08,481 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2020-11-30 00:56:08,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 30 transitions. [2020-11-30 00:56:08,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:56:08,482 INFO L691 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2020-11-30 00:56:08,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 30 transitions. [2020-11-30 00:56:08,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-11-30 00:56:08,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-30 00:56:08,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 30 transitions. [2020-11-30 00:56:08,506 INFO L714 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2020-11-30 00:56:08,506 INFO L594 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2020-11-30 00:56:08,506 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:56:08,507 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 30 transitions. [2020-11-30 00:56:08,508 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2020-11-30 00:56:08,508 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:56:08,508 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:56:08,508 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-30 00:56:08,508 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-30 00:56:08,509 INFO L794 eck$LassoCheckResult]: Stem: 174#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); 171#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; 172#L17-3 assume !(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296); 175#L17-4 main_~j~0 := 1; 160#L19-3 [2020-11-30 00:56:08,509 INFO L796 eck$LassoCheckResult]: Loop: 160#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; 161#L22-5 assume !true; 162#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 163#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 160#L19-3 [2020-11-30 00:56:08,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:08,509 INFO L82 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 1 times [2020-11-30 00:56:08,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:08,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025217996] [2020-11-30 00:56:08,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:08,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:08,528 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:08,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:08,560 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:08,564 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:08,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:08,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1687228, now seen corresponding path program 1 times [2020-11-30 00:56:08,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:08,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799186008] [2020-11-30 00:56:08,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:08,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:08,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:08,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799186008] [2020-11-30 00:56:08,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:56:08,592 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:56:08,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947263315] [2020-11-30 00:56:08,595 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-30 00:56:08,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:56:08,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 00:56:08,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:56:08,600 INFO L87 Difference]: Start difference. First operand 21 states and 30 transitions. cyclomatic complexity: 12 Second operand 2 states. [2020-11-30 00:56:08,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:08,604 INFO L93 Difference]: Finished difference Result 20 states and 26 transitions. [2020-11-30 00:56:08,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 00:56:08,605 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 26 transitions. [2020-11-30 00:56:08,606 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2020-11-30 00:56:08,607 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 19 states and 25 transitions. [2020-11-30 00:56:08,607 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2020-11-30 00:56:08,607 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2020-11-30 00:56:08,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 25 transitions. [2020-11-30 00:56:08,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:56:08,608 INFO L691 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2020-11-30 00:56:08,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 25 transitions. [2020-11-30 00:56:08,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-11-30 00:56:08,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-30 00:56:08,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2020-11-30 00:56:08,611 INFO L714 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2020-11-30 00:56:08,611 INFO L594 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2020-11-30 00:56:08,611 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:56:08,611 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 25 transitions. [2020-11-30 00:56:08,612 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2020-11-30 00:56:08,612 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:56:08,612 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:56:08,612 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-30 00:56:08,612 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:56:08,613 INFO L794 eck$LassoCheckResult]: Stem: 218#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 215#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet9, main_#t~post8, main_#t~mem11, main_#t~mem14, main_#t~mem12, main_#t~short13, main_#t~post10, main_#t~mem16, main_#t~mem17, main_#t~post15, main_~SIZE~0, main_~i~0, main_~j~0, main_~k~0, main_~key~0, main_~#v~0.base, main_~#v~0.offset;main_~SIZE~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~key~0;call main_~#v~0.base, main_~#v~0.offset := #Ultimate.allocOnStack(4 * (if main_~SIZE~0 % 4294967296 % 4294967296 <= 2147483647 then main_~SIZE~0 % 4294967296 % 4294967296 else main_~SIZE~0 % 4294967296 % 4294967296 - 4294967296));main_~j~0 := 0; 216#L17-3 assume !(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296); 219#L17-4 main_~j~0 := 1; 208#L19-3 [2020-11-30 00:56:08,614 INFO L796 eck$LassoCheckResult]: Loop: 208#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; 209#L22-5 main_#t~short13 := main_~i~0 >= 0; 212#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; 213#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 206#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 207#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 208#L19-3 [2020-11-30 00:56:08,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:08,614 INFO L82 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 2 times [2020-11-30 00:56:08,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:08,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813068840] [2020-11-30 00:56:08,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:08,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:08,643 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:08,665 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:08,669 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:08,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:08,670 INFO L82 PathProgramCache]: Analyzing trace with hash 1602376878, now seen corresponding path program 1 times [2020-11-30 00:56:08,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:08,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759224711] [2020-11-30 00:56:08,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:08,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:08,687 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:08,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:08,718 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:08,721 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:08,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:08,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1970718008, now seen corresponding path program 1 times [2020-11-30 00:56:08,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:08,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207550079] [2020-11-30 00:56:08,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:08,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:08,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:08,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207550079] [2020-11-30 00:56:08,939 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:56:08,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:56:08,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453975611] [2020-11-30 00:56:09,101 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2020-11-30 00:56:09,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:56:09,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:56:09,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:56:09,160 INFO L87 Difference]: Start difference. First operand 19 states and 25 transitions. cyclomatic complexity: 9 Second operand 5 states. [2020-11-30 00:56:09,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:09,320 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions. [2020-11-30 00:56:09,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:56:09,320 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 29 transitions. [2020-11-30 00:56:09,321 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2020-11-30 00:56:09,322 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 20 states and 25 transitions. [2020-11-30 00:56:09,322 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2020-11-30 00:56:09,322 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2020-11-30 00:56:09,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 25 transitions. [2020-11-30 00:56:09,323 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:56:09,323 INFO L691 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2020-11-30 00:56:09,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 25 transitions. [2020-11-30 00:56:09,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2020-11-30 00:56:09,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-30 00:56:09,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2020-11-30 00:56:09,325 INFO L714 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2020-11-30 00:56:09,326 INFO L594 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2020-11-30 00:56:09,326 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-30 00:56:09,326 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 24 transitions. [2020-11-30 00:56:09,326 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2020-11-30 00:56:09,327 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:56:09,327 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:56:09,327 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:56:09,327 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:56:09,328 INFO L794 eck$LassoCheckResult]: Stem: 273#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 270#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet9, main_#t~post8, main_#t~mem11, main_#t~mem14, main_#t~mem12, main_#t~short13, main_#t~post10, main_#t~mem16, main_#t~mem17, main_#t~post15, main_~SIZE~0, main_~i~0, main_~j~0, main_~k~0, main_~key~0, main_~#v~0.base, main_~#v~0.offset;main_~SIZE~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~key~0;call main_~#v~0.base, main_~#v~0.offset := #Ultimate.allocOnStack(4 * (if main_~SIZE~0 % 4294967296 % 4294967296 <= 2147483647 then main_~SIZE~0 % 4294967296 % 4294967296 else main_~SIZE~0 % 4294967296 % 4294967296 - 4294967296));main_~j~0 := 0; 271#L17-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call write~int(main_#t~nondet9, main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet9; 256#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 257#L17-3 assume !(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296); 274#L17-4 main_~j~0 := 1; 261#L19-3 [2020-11-30 00:56:09,328 INFO L796 eck$LassoCheckResult]: Loop: 261#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; 262#L22-5 main_#t~short13 := main_~i~0 >= 0; 267#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; 268#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 263#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 264#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 261#L19-3 [2020-11-30 00:56:09,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:09,328 INFO L82 PathProgramCache]: Analyzing trace with hash 889660429, now seen corresponding path program 1 times [2020-11-30 00:56:09,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:09,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120933795] [2020-11-30 00:56:09,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:09,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:09,361 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:09,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:09,375 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:09,379 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:09,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:09,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1602376878, now seen corresponding path program 2 times [2020-11-30 00:56:09,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:09,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333095299] [2020-11-30 00:56:09,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:09,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:09,388 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:09,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:09,396 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:09,399 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:09,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:09,399 INFO L82 PathProgramCache]: Analyzing trace with hash 1315520442, now seen corresponding path program 1 times [2020-11-30 00:56:09,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:09,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258387499] [2020-11-30 00:56:09,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:09,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:09,623 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:09,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258387499] [2020-11-30 00:56:09,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613642694] [2020-11-30 00:56:09,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:09,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:09,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-30 00:56:09,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:09,747 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 [2020-11-30 00:56:09,747 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:56:09,780 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:56:09,789 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 [2020-11-30 00:56:09,789 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-30 00:56:09,820 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:56:09,820 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2020-11-30 00:56:09,821 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:48, output treesize:46 [2020-11-30 00:56:09,976 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 00:56:10,078 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 00:56:10,554 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 [2020-11-30 00:56:10,617 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:56:10,673 INFO L625 ElimStorePlain]: treesize reduction 85, result has 38.8 percent of original size [2020-11-30 00:56:10,685 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. [2020-11-30 00:56:10,686 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:126, output treesize:49 [2020-11-30 00:56:10,767 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:56:10,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:10,811 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 00:56:10,811 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2020-11-30 00:56:10,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538679930] [2020-11-30 00:56:10,975 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2020-11-30 00:56:11,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:56:11,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-30 00:56:11,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-11-30 00:56:11,030 INFO L87 Difference]: Start difference. First operand 19 states and 24 transitions. cyclomatic complexity: 8 Second operand 11 states. [2020-11-30 00:56:11,357 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 20 [2020-11-30 00:56:11,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:11,541 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2020-11-30 00:56:11,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:56:11,542 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 32 transitions. [2020-11-30 00:56:11,543 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2020-11-30 00:56:11,544 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 23 states and 28 transitions. [2020-11-30 00:56:11,544 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2020-11-30 00:56:11,544 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2020-11-30 00:56:11,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 28 transitions. [2020-11-30 00:56:11,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:56:11,544 INFO L691 BuchiCegarLoop]: Abstraction has 23 states and 28 transitions. [2020-11-30 00:56:11,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 28 transitions. [2020-11-30 00:56:11,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2020-11-30 00:56:11,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-30 00:56:11,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2020-11-30 00:56:11,551 INFO L714 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2020-11-30 00:56:11,551 INFO L594 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2020-11-30 00:56:11,552 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-30 00:56:11,552 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 27 transitions. [2020-11-30 00:56:11,553 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2020-11-30 00:56:11,555 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:56:11,555 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:56:11,556 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2020-11-30 00:56:11,557 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:56:11,557 INFO L794 eck$LassoCheckResult]: Stem: 372#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 368#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet9, main_#t~post8, main_#t~mem11, main_#t~mem14, main_#t~mem12, main_#t~short13, main_#t~post10, main_#t~mem16, main_#t~mem17, main_#t~post15, main_~SIZE~0, main_~i~0, main_~j~0, main_~k~0, main_~key~0, main_~#v~0.base, main_~#v~0.offset;main_~SIZE~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~key~0;call main_~#v~0.base, main_~#v~0.offset := #Ultimate.allocOnStack(4 * (if main_~SIZE~0 % 4294967296 % 4294967296 <= 2147483647 then main_~SIZE~0 % 4294967296 % 4294967296 else main_~SIZE~0 % 4294967296 % 4294967296 - 4294967296));main_~j~0 := 0; 369#L17-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call write~int(main_#t~nondet9, main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet9; 355#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 356#L17-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call write~int(main_#t~nondet9, main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet9; 375#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 376#L17-3 assume !(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296); 374#L17-4 main_~j~0 := 1; 360#L19-3 [2020-11-30 00:56:11,557 INFO L796 eck$LassoCheckResult]: Loop: 360#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; 361#L22-5 main_#t~short13 := main_~i~0 >= 0; 366#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; 371#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 362#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 363#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 360#L19-3 [2020-11-30 00:56:11,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:11,558 INFO L82 PathProgramCache]: Analyzing trace with hash 265236367, now seen corresponding path program 2 times [2020-11-30 00:56:11,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:11,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880963585] [2020-11-30 00:56:11,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:11,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:11,608 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:11,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:11,626 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:11,637 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:11,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:11,638 INFO L82 PathProgramCache]: Analyzing trace with hash 1602376878, now seen corresponding path program 3 times [2020-11-30 00:56:11,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:11,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757116759] [2020-11-30 00:56:11,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:11,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:11,652 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:11,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:11,668 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:11,677 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:11,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:11,680 INFO L82 PathProgramCache]: Analyzing trace with hash -1264115268, now seen corresponding path program 2 times [2020-11-30 00:56:11,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:11,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866831793] [2020-11-30 00:56:11,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:11,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:11,722 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:11,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:11,757 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:11,765 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:11,918 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2020-11-30 00:56:12,466 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 106 [2020-11-30 00:56:12,755 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78 [2020-11-30 00:56:12,758 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:56:12,758 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:56:12,758 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:56:12,758 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:56:12,758 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:56:12,758 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:12,758 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:56:12,758 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:56:12,758 INFO L133 ssoRankerPreferences]: Filename of dumped script: insertion_sort-1.c_Iteration5_Lasso [2020-11-30 00:56:12,758 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:56:12,759 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:56:12,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:12,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:12,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:12,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:12,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:12,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:12,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:12,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:12,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:12,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:12,825 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:12,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:12,832 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:12,835 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:12,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:12,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:13,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:13,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:13,729 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:56:13,729 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) [2020-11-30 00:56:13,740 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:56:13,742 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:13,742 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:13,743 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:13,743 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:13,745 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:13,745 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 [2020-11-30 00:56:13,749 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:13,790 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 [2020-11-30 00:56:13,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:13,791 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:13,791 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:13,791 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:13,791 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:13,792 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:13,792 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:13,793 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:13,815 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 [2020-11-30 00:56:13,816 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:13,817 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:13,817 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:13,817 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:13,819 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:13,819 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:56:13,823 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:13,845 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:56:13,846 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:13,846 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:13,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:13,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:13,846 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:13,847 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:13,847 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:13,848 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:13,869 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 [2020-11-30 00:56:13,870 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:13,871 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:13,871 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:13,871 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:13,871 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:13,871 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:13,871 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:13,872 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) [2020-11-30 00:56:13,897 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:13,898 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:13,899 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:13,899 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:13,899 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:13,899 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:13,899 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:13,899 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:13,907 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:13,929 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 [2020-11-30 00:56:13,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:13,930 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:13,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:13,930 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:13,930 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:13,931 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:13,931 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:13,932 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:13,958 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:56:13,959 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:13,959 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:13,960 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:13,960 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:13,961 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:13,961 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:56:13,964 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:13,993 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 [2020-11-30 00:56:13,994 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:13,994 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:13,994 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:13,994 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:13,994 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:13,995 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:13,995 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:13,996 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:14,022 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 [2020-11-30 00:56:14,023 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:14,024 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:14,024 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:14,024 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:14,024 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:14,024 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:14,025 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:14,034 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:14,060 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:56:14,061 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:14,062 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:14,062 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:14,062 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:14,062 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:14,063 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:14,063 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:14,065 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:14,092 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 [2020-11-30 00:56:14,093 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:14,093 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:14,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:14,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:14,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:14,094 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:14,094 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:14,095 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:14,122 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 [2020-11-30 00:56:14,123 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:14,123 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:14,124 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:14,124 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:14,124 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:14,124 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:14,124 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:14,126 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:14,151 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 [2020-11-30 00:56:14,153 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:14,153 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:14,153 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:14,153 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:14,153 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:14,154 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:14,154 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:14,155 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:14,180 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 [2020-11-30 00:56:14,181 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:14,182 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:14,182 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:14,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:14,182 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:14,182 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:14,182 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:14,184 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:14,210 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 [2020-11-30 00:56:14,212 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:14,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:14,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:14,213 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:14,223 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:14,223 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:56:14,251 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:56:14,308 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2020-11-30 00:56:14,308 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_7f610526-cbbe-4b70-9266-718a9d7f6899/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) [2020-11-30 00:56:14,317 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:14,321 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-30 00:56:14,321 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:56:14,321 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] [2020-11-30 00:56:14,423 INFO L297 tatePredicateManager]: 12 out of 13 supporting invariants were superfluous and have been removed [2020-11-30 00:56:14,426 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 00:56:14,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:14,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:14,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 00:56:14,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:14,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:14,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 00:56:14,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:14,541 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:56:14,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:14,664 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 [2020-11-30 00:56:14,664 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 27 transitions. cyclomatic complexity: 8 Second operand 6 states. [2020-11-30 00:56:14,912 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 27 transitions. cyclomatic complexity: 8. Second operand 6 states. Result 50 states and 66 transitions. Complement of second has 11 states. [2020-11-30 00:56:14,913 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 [2020-11-30 00:56:14,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-11-30 00:56:14,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 31 transitions. [2020-11-30 00:56:14,914 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 8 letters. Loop has 6 letters. [2020-11-30 00:56:14,915 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:56:14,916 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 14 letters. Loop has 6 letters. [2020-11-30 00:56:14,916 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:56:14,916 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 8 letters. Loop has 12 letters. [2020-11-30 00:56:14,917 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:56:14,917 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 66 transitions. [2020-11-30 00:56:14,920 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 15 [2020-11-30 00:56:14,921 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 42 states and 54 transitions. [2020-11-30 00:56:14,921 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2020-11-30 00:56:14,922 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2020-11-30 00:56:14,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 54 transitions. [2020-11-30 00:56:14,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:56:14,922 INFO L691 BuchiCegarLoop]: Abstraction has 42 states and 54 transitions. [2020-11-30 00:56:14,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 54 transitions. [2020-11-30 00:56:14,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2020-11-30 00:56:14,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-11-30 00:56:14,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 52 transitions. [2020-11-30 00:56:14,928 INFO L714 BuchiCegarLoop]: Abstraction has 40 states and 52 transitions. [2020-11-30 00:56:14,928 INFO L594 BuchiCegarLoop]: Abstraction has 40 states and 52 transitions. [2020-11-30 00:56:14,928 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-30 00:56:14,929 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 52 transitions. [2020-11-30 00:56:14,930 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 15 [2020-11-30 00:56:14,930 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:56:14,930 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:56:14,931 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2020-11-30 00:56:14,931 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:56:14,931 INFO L794 eck$LassoCheckResult]: Stem: 588#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); 582#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; 583#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; 592#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 593#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; 563#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 564#L17-3 assume !(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296); 590#L17-4 main_~j~0 := 1; 591#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; 571#L22-5 [2020-11-30 00:56:14,932 INFO L796 eck$LassoCheckResult]: Loop: 571#L22-5 main_#t~short13 := main_~i~0 >= 0; 595#L22-1 assume !main_#t~short13; 594#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 566#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 567#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 570#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; 571#L22-5 [2020-11-30 00:56:14,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:14,932 INFO L82 PathProgramCache]: Analyzing trace with hash -367607191, now seen corresponding path program 1 times [2020-11-30 00:56:14,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:14,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057121591] [2020-11-30 00:56:14,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:14,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:14,951 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:14,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:14,964 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:14,969 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:14,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:14,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1750331510, now seen corresponding path program 1 times [2020-11-30 00:56:14,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:14,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815667273] [2020-11-30 00:56:14,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:14,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:14,976 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:14,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:14,981 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:14,983 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:14,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:14,984 INFO L82 PathProgramCache]: Analyzing trace with hash -531020578, now seen corresponding path program 1 times [2020-11-30 00:56:14,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:14,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342571068] [2020-11-30 00:56:14,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:14,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:15,026 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-30 00:56:15,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342571068] [2020-11-30 00:56:15,027 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:56:15,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:56:15,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506399058] [2020-11-30 00:56:15,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:56:15,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:56:15,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:56:15,158 INFO L87 Difference]: Start difference. First operand 40 states and 52 transitions. cyclomatic complexity: 17 Second operand 5 states. [2020-11-30 00:56:15,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:15,231 INFO L93 Difference]: Finished difference Result 78 states and 99 transitions. [2020-11-30 00:56:15,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:56:15,233 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 99 transitions. [2020-11-30 00:56:15,240 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 30 [2020-11-30 00:56:15,241 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 78 states and 99 transitions. [2020-11-30 00:56:15,243 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2020-11-30 00:56:15,243 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2020-11-30 00:56:15,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 78 states and 99 transitions. [2020-11-30 00:56:15,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:56:15,244 INFO L691 BuchiCegarLoop]: Abstraction has 78 states and 99 transitions. [2020-11-30 00:56:15,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states and 99 transitions. [2020-11-30 00:56:15,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 42. [2020-11-30 00:56:15,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-11-30 00:56:15,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 54 transitions. [2020-11-30 00:56:15,250 INFO L714 BuchiCegarLoop]: Abstraction has 42 states and 54 transitions. [2020-11-30 00:56:15,250 INFO L594 BuchiCegarLoop]: Abstraction has 42 states and 54 transitions. [2020-11-30 00:56:15,250 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-11-30 00:56:15,250 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 54 transitions. [2020-11-30 00:56:15,251 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 15 [2020-11-30 00:56:15,252 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:56:15,252 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:56:15,252 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2020-11-30 00:56:15,252 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-30 00:56:15,253 INFO L794 eck$LassoCheckResult]: Stem: 723#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); 717#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; 718#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; 726#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 727#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; 695#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 696#L17-3 assume !(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296); 725#L17-4 main_~j~0 := 1; 698#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; 699#L22-5 [2020-11-30 00:56:15,253 INFO L796 eck$LassoCheckResult]: Loop: 699#L22-5 main_#t~short13 := main_~i~0 >= 0; 709#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; 714#L22-3 assume !!main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 715#L23 assume main_~i~0 < 2;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; 719#L23-2 main_~i~0 := main_~i~0 - 1; 699#L22-5 [2020-11-30 00:56:15,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:15,253 INFO L82 PathProgramCache]: Analyzing trace with hash -367607191, now seen corresponding path program 2 times [2020-11-30 00:56:15,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:15,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631972971] [2020-11-30 00:56:15,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:15,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:15,268 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:15,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:15,280 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:15,284 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:15,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:15,285 INFO L82 PathProgramCache]: Analyzing trace with hash 56404392, now seen corresponding path program 1 times [2020-11-30 00:56:15,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:15,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4577755] [2020-11-30 00:56:15,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:15,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:15,290 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:15,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:15,293 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:15,295 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:15,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:15,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1264113600, now seen corresponding path program 1 times [2020-11-30 00:56:15,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:15,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538517521] [2020-11-30 00:56:15,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:15,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:15,311 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:15,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:15,330 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:15,334 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:15,450 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 41 [2020-11-30 00:56:16,011 WARN L193 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 120 [2020-11-30 00:56:16,299 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 91 [2020-11-30 00:56:16,301 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:56:16,301 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:56:16,301 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:56:16,301 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:56:16,301 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:56:16,301 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:16,302 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:56:16,302 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:56:16,302 INFO L133 ssoRankerPreferences]: Filename of dumped script: insertion_sort-1.c_Iteration7_Lasso [2020-11-30 00:56:16,302 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:56:16,302 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:56:16,304 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:16,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:16,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:16,603 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2020-11-30 00:56:16,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:16,682 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:16,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:16,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:16,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:16,697 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:16,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:16,707 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:16,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:16,718 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:16,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:16,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:16,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:16,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:16,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:17,073 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:56:17,074 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:17,083 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 [2020-11-30 00:56:17,084 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:17,085 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:17,085 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:17,085 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:17,085 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:17,086 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:17,086 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:17,087 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:17,113 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:56:17,114 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:17,114 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:17,114 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:17,114 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:17,115 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:17,115 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:17,115 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:17,116 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:17,142 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 [2020-11-30 00:56:17,144 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:17,144 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:17,144 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:17,144 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:17,146 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:17,147 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:56:17,151 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:17,178 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 [2020-11-30 00:56:17,180 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:17,180 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:17,181 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:17,181 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:17,186 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:17,186 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:56:17,206 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:56:17,243 INFO L443 ModelExtractionUtils]: Simplification made 15 calls to the SMT solver. [2020-11-30 00:56:17,243 INFO L444 ModelExtractionUtils]: 5 out of 22 variables were initially zero. Simplification set additionally 12 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:17,255 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 00:56:17,257 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-30 00:56:17,258 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:56:17,258 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~j~0) = 2*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~j~0 Supporting invariants [1*ULTIMATE.start_main_~j~0 - 1 >= 0] [2020-11-30 00:56:17,333 INFO L297 tatePredicateManager]: 14 out of 15 supporting invariants were superfluous and have been removed [2020-11-30 00:56:17,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:17,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:17,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 00:56:17,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:17,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:17,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 00:56:17,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:17,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:17,522 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2020-11-30 00:56:17,523 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 54 transitions. cyclomatic complexity: 17 Second operand 5 states. [2020-11-30 00:56:17,618 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 54 transitions. cyclomatic complexity: 17. Second operand 5 states. Result 77 states and 97 transitions. Complement of second has 10 states. [2020-11-30 00:56:17,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2020-11-30 00:56:17,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-30 00:56:17,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 24 transitions. [2020-11-30 00:56:17,622 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 9 letters. Loop has 5 letters. [2020-11-30 00:56:17,622 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:56:17,622 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 14 letters. Loop has 5 letters. [2020-11-30 00:56:17,622 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:56:17,622 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 9 letters. Loop has 10 letters. [2020-11-30 00:56:17,623 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:56:17,623 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 77 states and 97 transitions. [2020-11-30 00:56:17,624 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 19 [2020-11-30 00:56:17,625 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 77 states to 60 states and 75 transitions. [2020-11-30 00:56:17,626 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2020-11-30 00:56:17,626 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2020-11-30 00:56:17,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 75 transitions. [2020-11-30 00:56:17,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:56:17,626 INFO L691 BuchiCegarLoop]: Abstraction has 60 states and 75 transitions. [2020-11-30 00:56:17,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 75 transitions. [2020-11-30 00:56:17,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 48. [2020-11-30 00:56:17,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-11-30 00:56:17,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 63 transitions. [2020-11-30 00:56:17,631 INFO L714 BuchiCegarLoop]: Abstraction has 48 states and 63 transitions. [2020-11-30 00:56:17,631 INFO L594 BuchiCegarLoop]: Abstraction has 48 states and 63 transitions. [2020-11-30 00:56:17,631 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-11-30 00:56:17,631 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 63 transitions. [2020-11-30 00:56:17,633 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 15 [2020-11-30 00:56:17,634 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:56:17,634 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:56:17,634 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2020-11-30 00:56:17,635 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-30 00:56:17,635 INFO L794 eck$LassoCheckResult]: Stem: 978#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(19);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 973#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet9, main_#t~post8, main_#t~mem11, main_#t~mem14, main_#t~mem12, main_#t~short13, main_#t~post10, main_#t~mem16, main_#t~mem17, main_#t~post15, main_~SIZE~0, main_~i~0, main_~j~0, main_~k~0, main_~key~0, main_~#v~0.base, main_~#v~0.offset;main_~SIZE~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~key~0;call main_~#v~0.base, main_~#v~0.offset := #Ultimate.allocOnStack(4 * (if main_~SIZE~0 % 4294967296 % 4294967296 <= 2147483647 then main_~SIZE~0 % 4294967296 % 4294967296 else main_~SIZE~0 % 4294967296 % 4294967296 - 4294967296));main_~j~0 := 0; 974#L17-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call write~int(main_#t~nondet9, main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet9; 951#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 952#L17-3 assume !!(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296);call write~int(main_#t~nondet9, main_~#v~0.base, main_~#v~0.offset + 4 * main_~j~0, 4);havoc main_#t~nondet9; 981#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 983#L17-3 assume !(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296); 980#L17-4 main_~j~0 := 1; 954#L19-3 assume !(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296); 949#L19-4 main_~k~0 := 1; 950#L29-3 [2020-11-30 00:56:17,635 INFO L796 eck$LassoCheckResult]: Loop: 950#L29-3 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; 953#L6 assume !(0 == __VERIFIER_assert_~cond); 963#L6-2 havoc main_#t~mem17;havoc main_#t~mem16; 962#L29-2 main_#t~post15 := main_~k~0;main_~k~0 := 1 + main_#t~post15;havoc main_#t~post15; 950#L29-3 [2020-11-30 00:56:17,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:17,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1489078962, now seen corresponding path program 1 times [2020-11-30 00:56:17,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:17,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058339235] [2020-11-30 00:56:17,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:17,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:17,852 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:17,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058339235] [2020-11-30 00:56:17,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154811369] [2020-11-30 00:56:17,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:56:17,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:17,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 00:56:17,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:17,944 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 [2020-11-30 00:56:17,944 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:56:17,996 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:56:18,003 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 [2020-11-30 00:56:18,003 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-30 00:56:18,039 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:56:18,040 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2020-11-30 00:56:18,040 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:48, output treesize:46 [2020-11-30 00:56:18,094 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:56:18,157 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:56:18,196 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 21 treesize of output 17 [2020-11-30 00:56:18,196 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:56:18,230 INFO L625 ElimStorePlain]: treesize reduction 21, result has 56.3 percent of original size [2020-11-30 00:56:18,234 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 [2020-11-30 00:56:18,234 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-30 00:56:18,242 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:56:18,243 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-30 00:56:18,243 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:57, output treesize:11 [2020-11-30 00:56:18,308 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:18,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 00:56:18,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2020-11-30 00:56:18,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262946238] [2020-11-30 00:56:18,309 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-30 00:56:18,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:18,310 INFO L82 PathProgramCache]: Analyzing trace with hash 2933516, now seen corresponding path program 1 times [2020-11-30 00:56:18,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:18,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392383048] [2020-11-30 00:56:18,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:18,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:18,317 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:18,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:18,326 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:18,328 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:18,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:56:18,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 00:56:18,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-11-30 00:56:18,470 INFO L87 Difference]: Start difference. First operand 48 states and 63 transitions. cyclomatic complexity: 21 Second operand 10 states. [2020-11-30 00:56:18,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:18,773 INFO L93 Difference]: Finished difference Result 51 states and 65 transitions. [2020-11-30 00:56:18,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:56:18,776 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 65 transitions. [2020-11-30 00:56:18,777 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 15 [2020-11-30 00:56:18,778 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 51 states and 65 transitions. [2020-11-30 00:56:18,778 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2020-11-30 00:56:18,778 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2020-11-30 00:56:18,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 65 transitions. [2020-11-30 00:56:18,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:56:18,778 INFO L691 BuchiCegarLoop]: Abstraction has 51 states and 65 transitions. [2020-11-30 00:56:18,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 65 transitions. [2020-11-30 00:56:18,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 48. [2020-11-30 00:56:18,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-11-30 00:56:18,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 62 transitions. [2020-11-30 00:56:18,783 INFO L714 BuchiCegarLoop]: Abstraction has 48 states and 62 transitions. [2020-11-30 00:56:18,783 INFO L594 BuchiCegarLoop]: Abstraction has 48 states and 62 transitions. [2020-11-30 00:56:18,784 INFO L427 BuchiCegarLoop]: ======== Iteration 9============ [2020-11-30 00:56:18,784 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 62 transitions. [2020-11-30 00:56:18,784 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 15 [2020-11-30 00:56:18,785 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:56:18,785 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:56:18,787 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:56:18,787 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:56:18,787 INFO L794 eck$LassoCheckResult]: Stem: 1123#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); 1117#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; 1118#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; 1094#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 1095#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; 1127#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 1129#L17-3 assume !(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296); 1126#L17-4 main_~j~0 := 1; 1099#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; 1100#L22-5 main_#t~short13 := main_~i~0 >= 0; 1120#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; 1116#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 1105#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 1106#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 1114#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; 1128#L22-5 [2020-11-30 00:56:18,787 INFO L796 eck$LassoCheckResult]: Loop: 1128#L22-5 main_#t~short13 := main_~i~0 >= 0; 1135#L22-1 assume !main_#t~short13; 1115#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 1103#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 1104#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 1113#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; 1128#L22-5 [2020-11-30 00:56:18,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:18,788 INFO L82 PathProgramCache]: Analyzing trace with hash -532867620, now seen corresponding path program 3 times [2020-11-30 00:56:18,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:18,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519138793] [2020-11-30 00:56:18,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:18,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:19,100 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:19,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519138793] [2020-11-30 00:56:19,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363350725] [2020-11-30 00:56:19,100 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:56:19,165 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-11-30 00:56:19,166 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 00:56:19,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-30 00:56:19,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:19,185 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 [2020-11-30 00:56:19,186 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:56:19,218 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:56:19,224 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 [2020-11-30 00:56:19,225 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-30 00:56:19,260 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:56:19,260 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2020-11-30 00:56:19,260 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:48, output treesize:46 [2020-11-30 00:56:19,360 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 00:56:19,493 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:19,493 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 00:56:19,494 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2020-11-30 00:56:19,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728361052] [2020-11-30 00:56:19,494 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-30 00:56:19,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:19,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1750331510, now seen corresponding path program 2 times [2020-11-30 00:56:19,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:19,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776277447] [2020-11-30 00:56:19,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:19,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:19,508 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:19,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:19,515 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:19,517 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:19,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:56:19,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-30 00:56:19,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-11-30 00:56:19,658 INFO L87 Difference]: Start difference. First operand 48 states and 62 transitions. cyclomatic complexity: 20 Second operand 14 states. [2020-11-30 00:56:20,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:20,184 INFO L93 Difference]: Finished difference Result 70 states and 89 transitions. [2020-11-30 00:56:20,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 00:56:20,185 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 70 states and 89 transitions. [2020-11-30 00:56:20,186 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 19 [2020-11-30 00:56:20,187 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 70 states to 70 states and 89 transitions. [2020-11-30 00:56:20,187 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2020-11-30 00:56:20,187 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2020-11-30 00:56:20,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 70 states and 89 transitions. [2020-11-30 00:56:20,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:56:20,188 INFO L691 BuchiCegarLoop]: Abstraction has 70 states and 89 transitions. [2020-11-30 00:56:20,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states and 89 transitions. [2020-11-30 00:56:20,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 64. [2020-11-30 00:56:20,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-11-30 00:56:20,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 83 transitions. [2020-11-30 00:56:20,193 INFO L714 BuchiCegarLoop]: Abstraction has 64 states and 83 transitions. [2020-11-30 00:56:20,193 INFO L594 BuchiCegarLoop]: Abstraction has 64 states and 83 transitions. [2020-11-30 00:56:20,193 INFO L427 BuchiCegarLoop]: ======== Iteration 10============ [2020-11-30 00:56:20,193 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 64 states and 83 transitions. [2020-11-30 00:56:20,194 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 15 [2020-11-30 00:56:20,194 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:56:20,194 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:56:20,195 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:56:20,195 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-30 00:56:20,195 INFO L794 eck$LassoCheckResult]: Stem: 1313#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); 1304#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; 1305#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; 1316#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 1337#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; 1336#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 1334#L17-3 assume !(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296); 1332#L17-4 main_~j~0 := 1; 1330#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; 1324#L22-5 main_#t~short13 := main_~i~0 >= 0; 1306#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; 1307#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 1327#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 1298#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 1299#L19-3 assume !(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296); 1281#L19-4 main_~k~0 := 1; 1282#L29-3 [2020-11-30 00:56:20,195 INFO L796 eck$LassoCheckResult]: Loop: 1282#L29-3 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; 1283#L6 assume !(0 == __VERIFIER_assert_~cond); 1293#L6-2 havoc main_#t~mem17;havoc main_#t~mem16; 1292#L29-2 main_#t~post15 := main_~k~0;main_~k~0 := 1 + main_#t~post15;havoc main_#t~post15; 1282#L29-3 [2020-11-30 00:56:20,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:20,196 INFO L82 PathProgramCache]: Analyzing trace with hash 660972959, now seen corresponding path program 1 times [2020-11-30 00:56:20,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:20,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057668951] [2020-11-30 00:56:20,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:20,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:20,214 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:20,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:20,231 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:20,235 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:20,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:20,235 INFO L82 PathProgramCache]: Analyzing trace with hash 2933516, now seen corresponding path program 2 times [2020-11-30 00:56:20,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:20,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836788582] [2020-11-30 00:56:20,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:20,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:20,247 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:20,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:20,250 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:20,252 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:20,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:20,252 INFO L82 PathProgramCache]: Analyzing trace with hash 183134634, now seen corresponding path program 1 times [2020-11-30 00:56:20,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:20,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380720298] [2020-11-30 00:56:20,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:20,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:20,276 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:20,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:20,296 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:20,300 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:21,367 WARN L193 SmtUtils]: Spent 914.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 144 [2020-11-30 00:56:22,005 WARN L193 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 105 [2020-11-30 00:56:22,010 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:56:22,010 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:56:22,010 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:56:22,011 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:56:22,011 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:56:22,011 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:22,011 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:56:22,011 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:56:22,011 INFO L133 ssoRankerPreferences]: Filename of dumped script: insertion_sort-1.c_Iteration10_Lasso [2020-11-30 00:56:22,011 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:56:22,011 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:56:22,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:22,028 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:22,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:22,045 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:22,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:22,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:22,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:22,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:22,071 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:22,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:22,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:22,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:22,367 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2020-11-30 00:56:22,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:22,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:22,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:22,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:22,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:22,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:22,984 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:56:22,984 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:22,988 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 [2020-11-30 00:56:22,990 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:22,990 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:22,990 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:22,990 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:22,990 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:22,991 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:22,991 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:22,992 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:23,015 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 [2020-11-30 00:56:23,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:23,016 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:23,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:23,016 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:23,016 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:23,017 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:23,017 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:23,018 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:23,040 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 [2020-11-30 00:56:23,041 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:23,042 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:23,042 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:23,042 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:23,042 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:23,042 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:23,042 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:23,043 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:23,066 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:56:23,068 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:23,068 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:23,068 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:23,068 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:23,069 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:23,069 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:56:23,073 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:23,096 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 [2020-11-30 00:56:23,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:23,099 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:23,099 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:23,099 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:23,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:23,100 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:23,100 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:23,103 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) [2020-11-30 00:56:23,154 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:56:23,156 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:23,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:23,156 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:23,156 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:23,158 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:23,159 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:23,162 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) [2020-11-30 00:56:23,201 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 [2020-11-30 00:56:23,202 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:23,203 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:23,203 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:23,203 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:23,205 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:23,205 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:23,208 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:23,234 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 [2020-11-30 00:56:23,235 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:23,236 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:23,236 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:23,236 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:23,236 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:23,237 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:23,237 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:23,238 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:23,260 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 [2020-11-30 00:56:23,261 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:23,261 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:23,261 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:23,261 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:23,261 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:23,262 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:23,262 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:23,263 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:23,285 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 [2020-11-30 00:56:23,287 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:23,287 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:23,287 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:23,287 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:23,287 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:23,287 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:23,288 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:23,289 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:23,311 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 [2020-11-30 00:56:23,312 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:23,313 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:23,313 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:23,313 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:23,313 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:23,314 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:23,314 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:23,315 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:23,338 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 [2020-11-30 00:56:23,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:23,340 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:23,340 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:23,340 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:23,350 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:23,350 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:56:23,377 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:56:23,403 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2020-11-30 00:56:23,403 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_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 64 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 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:23,405 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 00:56:23,407 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-30 00:56:23,407 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:56:23,407 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 [] [2020-11-30 00:56:23,500 INFO L297 tatePredicateManager]: 18 out of 18 supporting invariants were superfluous and have been removed [2020-11-30 00:56:23,502 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 00:56:23,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:23,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:23,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:56:23,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:23,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:23,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:56:23,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:23,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:23,600 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 [2020-11-30 00:56:23,600 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 64 states and 83 transitions. cyclomatic complexity: 26 Second operand 3 states. [2020-11-30 00:56:23,623 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 64 states and 83 transitions. cyclomatic complexity: 26. Second operand 3 states. Result 68 states and 88 transitions. Complement of second has 4 states. [2020-11-30 00:56:23,624 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 [2020-11-30 00:56:23,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-30 00:56:23,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 23 transitions. [2020-11-30 00:56:23,624 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 16 letters. Loop has 4 letters. [2020-11-30 00:56:23,625 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:56:23,625 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 20 letters. Loop has 4 letters. [2020-11-30 00:56:23,625 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:56:23,625 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 16 letters. Loop has 8 letters. [2020-11-30 00:56:23,625 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:56:23,626 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 68 states and 88 transitions. [2020-11-30 00:56:23,627 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2020-11-30 00:56:23,627 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 68 states to 45 states and 57 transitions. [2020-11-30 00:56:23,627 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2020-11-30 00:56:23,628 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2020-11-30 00:56:23,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 57 transitions. [2020-11-30 00:56:23,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:56:23,628 INFO L691 BuchiCegarLoop]: Abstraction has 45 states and 57 transitions. [2020-11-30 00:56:23,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 57 transitions. [2020-11-30 00:56:23,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-11-30 00:56:23,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-11-30 00:56:23,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 57 transitions. [2020-11-30 00:56:23,631 INFO L714 BuchiCegarLoop]: Abstraction has 45 states and 57 transitions. [2020-11-30 00:56:23,631 INFO L594 BuchiCegarLoop]: Abstraction has 45 states and 57 transitions. [2020-11-30 00:56:23,631 INFO L427 BuchiCegarLoop]: ======== Iteration 11============ [2020-11-30 00:56:23,632 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 57 transitions. [2020-11-30 00:56:23,632 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2020-11-30 00:56:23,632 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:56:23,632 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:56:23,633 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:56:23,633 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-11-30 00:56:23,633 INFO L794 eck$LassoCheckResult]: Stem: 1589#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); 1582#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; 1583#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; 1563#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 1564#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; 1591#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 1596#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; 1594#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 1593#L17-3 assume !(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296); 1590#L17-4 main_~j~0 := 1; 1569#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; 1570#L22-5 main_#t~short13 := main_~i~0 >= 0; 1584#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; 1585#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 1600#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 1599#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 1598#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; 1597#L22-5 [2020-11-30 00:56:23,633 INFO L796 eck$LassoCheckResult]: Loop: 1597#L22-5 main_#t~short13 := main_~i~0 >= 0; 1595#L22-1 assume !main_#t~short13; 1592#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 1565#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 1566#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 1577#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; 1597#L22-5 [2020-11-30 00:56:23,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:23,634 INFO L82 PathProgramCache]: Analyzing trace with hash -610476902, now seen corresponding path program 4 times [2020-11-30 00:56:23,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:23,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367186014] [2020-11-30 00:56:23,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:23,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:23,654 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:23,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:23,672 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:23,677 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:23,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:23,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1750331510, now seen corresponding path program 3 times [2020-11-30 00:56:23,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:23,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239177445] [2020-11-30 00:56:23,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:23,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:23,683 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:23,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:23,686 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:23,688 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:23,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:23,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1753926065, now seen corresponding path program 1 times [2020-11-30 00:56:23,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:23,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759770220] [2020-11-30 00:56:23,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:23,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:23,756 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-11-30 00:56:23,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759770220] [2020-11-30 00:56:23,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691855303] [2020-11-30 00:56:23,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:56:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:23,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 00:56:23,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:23,831 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 00:56:23,835 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-11-30 00:56:23,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 00:56:23,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2020-11-30 00:56:23,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205432888] [2020-11-30 00:56:23,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:56:23,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 00:56:23,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:56:23,950 INFO L87 Difference]: Start difference. First operand 45 states and 57 transitions. cyclomatic complexity: 17 Second operand 7 states. [2020-11-30 00:56:24,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:24,116 INFO L93 Difference]: Finished difference Result 50 states and 64 transitions. [2020-11-30 00:56:24,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 00:56:24,117 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 64 transitions. [2020-11-30 00:56:24,117 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-11-30 00:56:24,118 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 50 states and 64 transitions. [2020-11-30 00:56:24,118 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2020-11-30 00:56:24,118 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-11-30 00:56:24,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 64 transitions. [2020-11-30 00:56:24,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:56:24,119 INFO L691 BuchiCegarLoop]: Abstraction has 50 states and 64 transitions. [2020-11-30 00:56:24,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states and 64 transitions. [2020-11-30 00:56:24,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 35. [2020-11-30 00:56:24,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-11-30 00:56:24,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2020-11-30 00:56:24,121 INFO L714 BuchiCegarLoop]: Abstraction has 35 states and 45 transitions. [2020-11-30 00:56:24,121 INFO L594 BuchiCegarLoop]: Abstraction has 35 states and 45 transitions. [2020-11-30 00:56:24,121 INFO L427 BuchiCegarLoop]: ======== Iteration 12============ [2020-11-30 00:56:24,121 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 45 transitions. [2020-11-30 00:56:24,122 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-30 00:56:24,122 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:56:24,122 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:56:24,122 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:56:24,122 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-30 00:56:24,123 INFO L794 eck$LassoCheckResult]: Stem: 1763#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); 1757#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; 1758#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; 1766#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 1767#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; 1742#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 1743#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; 1769#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 1768#L17-3 assume !(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296); 1765#L17-4 main_~j~0 := 1; 1744#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; 1745#L22-5 main_#t~short13 := main_~i~0 >= 0; 1772#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; 1770#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 1749#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 1750#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 1746#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; 1748#L22-5 [2020-11-30 00:56:24,130 INFO L796 eck$LassoCheckResult]: Loop: 1748#L22-5 main_#t~short13 := main_~i~0 >= 0; 1751#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; 1753#L22-3 assume !!main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 1754#L23 assume main_~i~0 < 2;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; 1760#L23-2 main_~i~0 := main_~i~0 - 1; 1748#L22-5 [2020-11-30 00:56:24,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:24,131 INFO L82 PathProgramCache]: Analyzing trace with hash -610476902, now seen corresponding path program 5 times [2020-11-30 00:56:24,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:24,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942738008] [2020-11-30 00:56:24,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:24,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:24,165 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:24,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:24,187 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:24,196 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:24,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:24,196 INFO L82 PathProgramCache]: Analyzing trace with hash 56404392, now seen corresponding path program 2 times [2020-11-30 00:56:24,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:24,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418836256] [2020-11-30 00:56:24,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:24,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:24,201 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:24,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:24,205 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:24,206 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:24,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:24,207 INFO L82 PathProgramCache]: Analyzing trace with hash 2021573807, now seen corresponding path program 1 times [2020-11-30 00:56:24,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:24,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940075600] [2020-11-30 00:56:24,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:24,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:24,251 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:24,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:24,289 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:24,297 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:24,436 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 41 [2020-11-30 00:56:25,413 WARN L193 SmtUtils]: Spent 941.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 156 [2020-11-30 00:56:25,770 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 104 [2020-11-30 00:56:25,773 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:56:25,773 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:56:25,773 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:56:25,773 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:56:25,773 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:56:25,773 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:25,773 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:56:25,773 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:56:25,773 INFO L133 ssoRankerPreferences]: Filename of dumped script: insertion_sort-1.c_Iteration12_Lasso [2020-11-30 00:56:25,773 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:56:25,773 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:56:25,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:25,779 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:25,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:25,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:25,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:25,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:25,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:26,133 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2020-11-30 00:56:26,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:26,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:26,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:26,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:26,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:26,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:26,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:26,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:26,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:26,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:26,267 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:26,669 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:56:26,670 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:26,675 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 [2020-11-30 00:56:26,676 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:26,676 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:26,677 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:26,677 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:26,678 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:26,678 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:56:26,680 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:26,703 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 [2020-11-30 00:56:26,704 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:26,704 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:26,704 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:26,704 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:26,705 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:26,705 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:56:26,708 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:26,731 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 [2020-11-30 00:56:26,732 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:26,732 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:26,732 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:26,733 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:26,733 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:26,733 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:26,733 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:26,734 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:26,756 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 [2020-11-30 00:56:26,757 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:26,757 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:26,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:26,757 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:26,757 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:26,758 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:26,758 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:26,759 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) Waiting until toolchain timeout for monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:26,781 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 [2020-11-30 00:56:26,782 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:26,782 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:26,782 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:26,782 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:26,782 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:26,782 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:26,782 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:26,783 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:26,806 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 [2020-11-30 00:56:26,807 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:26,807 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:26,808 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:26,808 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:26,808 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:26,808 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:26,808 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:26,809 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:26,832 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:56:26,833 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:26,833 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:26,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:26,833 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:26,836 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:26,836 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:56:26,840 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:26,862 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 [2020-11-30 00:56:26,863 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:26,864 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:26,864 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:26,864 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:26,866 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:26,866 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:56:26,870 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:26,897 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 [2020-11-30 00:56:26,898 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:26,898 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:26,899 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:26,899 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:26,901 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:26,901 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:56:26,905 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:26,926 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 [2020-11-30 00:56:26,927 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:26,927 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:26,927 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:26,927 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:26,928 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:26,928 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:56:26,931 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) Waiting until toolchain timeout for monitored process 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:26,953 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 [2020-11-30 00:56:26,954 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:26,955 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:26,955 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:26,955 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:26,960 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:26,960 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:56:26,968 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:56:26,979 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-11-30 00:56:26,979 INFO L444 ModelExtractionUtils]: 5 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_7f610526-cbbe-4b70-9266-718a9d7f6899/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) [2020-11-30 00:56:26,981 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:26,990 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-30 00:56:26,991 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:56:26,991 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~j~0) = 4*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2020-11-30 00:56:27,072 INFO L297 tatePredicateManager]: 23 out of 24 supporting invariants were superfluous and have been removed [2020-11-30 00:56:27,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:27,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:27,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 00:56:27,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:27,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:27,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 00:56:27,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:27,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:27,203 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 3 loop predicates [2020-11-30 00:56:27,203 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 45 transitions. cyclomatic complexity: 14 Second operand 6 states. [2020-11-30 00:56:27,232 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 45 transitions. cyclomatic complexity: 14. Second operand 6 states. Result 35 states and 45 transitions. Complement of second has 4 states. [2020-11-30 00:56:27,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2020-11-30 00:56:27,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-11-30 00:56:27,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-11-30 00:56:27,233 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 17 letters. Loop has 5 letters. [2020-11-30 00:56:27,233 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:56:27,233 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-30 00:56:27,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:27,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:27,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 00:56:27,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:27,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:27,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 00:56:27,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:27,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:27,345 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.3 stem predicates 3 loop predicates [2020-11-30 00:56:27,345 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 45 transitions. cyclomatic complexity: 14 Second operand 6 states. [2020-11-30 00:56:27,392 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 45 transitions. cyclomatic complexity: 14. Second operand 6 states. Result 35 states and 45 transitions. Complement of second has 4 states. [2020-11-30 00:56:27,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2020-11-30 00:56:27,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-11-30 00:56:27,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-11-30 00:56:27,393 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 17 letters. Loop has 5 letters. [2020-11-30 00:56:27,393 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:56:27,393 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-30 00:56:27,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:27,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:27,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 00:56:27,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:27,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:27,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 00:56:27,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:27,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:27,589 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.3 stem predicates 3 loop predicates [2020-11-30 00:56:27,589 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 45 transitions. cyclomatic complexity: 14 Second operand 6 states. [2020-11-30 00:56:27,729 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 45 transitions. cyclomatic complexity: 14. Second operand 6 states. Result 73 states and 92 transitions. Complement of second has 12 states. [2020-11-30 00:56:27,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 3 stem states 3 non-accepting loop states 2 accepting loop states [2020-11-30 00:56:27,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-11-30 00:56:27,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 53 transitions. [2020-11-30 00:56:27,735 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 53 transitions. Stem has 17 letters. Loop has 5 letters. [2020-11-30 00:56:27,735 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:56:27,735 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 53 transitions. Stem has 22 letters. Loop has 5 letters. [2020-11-30 00:56:27,735 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:56:27,735 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 53 transitions. Stem has 17 letters. Loop has 10 letters. [2020-11-30 00:56:27,736 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:56:27,736 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 73 states and 92 transitions. [2020-11-30 00:56:27,737 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-30 00:56:27,739 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 73 states to 56 states and 70 transitions. [2020-11-30 00:56:27,739 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-11-30 00:56:27,739 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-11-30 00:56:27,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 70 transitions. [2020-11-30 00:56:27,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:56:27,740 INFO L691 BuchiCegarLoop]: Abstraction has 56 states and 70 transitions. [2020-11-30 00:56:27,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 70 transitions. [2020-11-30 00:56:27,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 47. [2020-11-30 00:56:27,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-30 00:56:27,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 61 transitions. [2020-11-30 00:56:27,743 INFO L714 BuchiCegarLoop]: Abstraction has 47 states and 61 transitions. [2020-11-30 00:56:27,743 INFO L594 BuchiCegarLoop]: Abstraction has 47 states and 61 transitions. [2020-11-30 00:56:27,743 INFO L427 BuchiCegarLoop]: ======== Iteration 13============ [2020-11-30 00:56:27,743 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 47 states and 61 transitions. [2020-11-30 00:56:27,744 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-30 00:56:27,744 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:56:27,744 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:56:27,745 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2020-11-30 00:56:27,745 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-30 00:56:27,745 INFO L794 eck$LassoCheckResult]: Stem: 2296#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); 2291#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; 2292#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; 2275#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 2276#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; 2300#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 2303#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; 2302#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 2301#L17-3 assume !(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296); 2299#L17-4 main_~j~0 := 1; 2277#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; 2278#L22-5 main_#t~short13 := main_~i~0 >= 0; 2308#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; 2307#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 2306#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 2305#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 2279#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; 2280#L22-5 main_#t~short13 := main_~i~0 >= 0; 2293#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; 2290#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 2281#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 2282#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 2287#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; 2283#L22-5 [2020-11-30 00:56:27,745 INFO L796 eck$LassoCheckResult]: Loop: 2283#L22-5 main_#t~short13 := main_~i~0 >= 0; 2284#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; 2288#L22-3 assume !!main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 2289#L23 assume main_~i~0 < 2;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; 2294#L23-2 main_~i~0 := main_~i~0 - 1; 2283#L22-5 [2020-11-30 00:56:27,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:27,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1755773107, now seen corresponding path program 6 times [2020-11-30 00:56:27,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:27,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769926577] [2020-11-30 00:56:27,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:27,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:28,112 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 1 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:28,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769926577] [2020-11-30 00:56:28,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283415077] [2020-11-30 00:56:28,113 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:56:28,176 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2020-11-30 00:56:28,177 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 00:56:28,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 16 conjunts are in the unsatisfiable core [2020-11-30 00:56:28,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:28,429 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:28,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 00:56:28,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2020-11-30 00:56:28,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118827759] [2020-11-30 00:56:28,431 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-30 00:56:28,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:28,431 INFO L82 PathProgramCache]: Analyzing trace with hash 56404392, now seen corresponding path program 3 times [2020-11-30 00:56:28,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:28,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401167871] [2020-11-30 00:56:28,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:28,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:28,435 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:28,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:28,437 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:28,439 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:28,551 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 41 [2020-11-30 00:56:28,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:56:28,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-11-30 00:56:28,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2020-11-30 00:56:28,571 INFO L87 Difference]: Start difference. First operand 47 states and 61 transitions. cyclomatic complexity: 19 Second operand 19 states. [2020-11-30 00:56:29,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:29,373 INFO L93 Difference]: Finished difference Result 95 states and 122 transitions. [2020-11-30 00:56:29,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-30 00:56:29,375 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 95 states and 122 transitions. [2020-11-30 00:56:29,376 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2020-11-30 00:56:29,377 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 95 states to 69 states and 88 transitions. [2020-11-30 00:56:29,377 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2020-11-30 00:56:29,377 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-11-30 00:56:29,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 88 transitions. [2020-11-30 00:56:29,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:56:29,378 INFO L691 BuchiCegarLoop]: Abstraction has 69 states and 88 transitions. [2020-11-30 00:56:29,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states and 88 transitions. [2020-11-30 00:56:29,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 49. [2020-11-30 00:56:29,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-11-30 00:56:29,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 63 transitions. [2020-11-30 00:56:29,381 INFO L714 BuchiCegarLoop]: Abstraction has 49 states and 63 transitions. [2020-11-30 00:56:29,381 INFO L594 BuchiCegarLoop]: Abstraction has 49 states and 63 transitions. [2020-11-30 00:56:29,381 INFO L427 BuchiCegarLoop]: ======== Iteration 14============ [2020-11-30 00:56:29,381 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states and 63 transitions. [2020-11-30 00:56:29,382 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-30 00:56:29,382 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:56:29,382 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:56:29,383 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2020-11-30 00:56:29,383 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-30 00:56:29,383 INFO L794 eck$LassoCheckResult]: Stem: 2544#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); 2539#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; 2540#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; 2523#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 2524#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; 2547#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 2552#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; 2551#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 2550#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; 2549#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 2548#L17-3 assume !(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296); 2546#L17-4 main_~j~0 := 1; 2525#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; 2526#L22-5 main_#t~short13 := main_~i~0 >= 0; 2557#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; 2556#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 2555#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 2554#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 2527#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; 2528#L22-5 main_#t~short13 := main_~i~0 >= 0; 2541#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; 2538#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 2529#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 2530#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 2535#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; 2531#L22-5 [2020-11-30 00:56:29,383 INFO L796 eck$LassoCheckResult]: Loop: 2531#L22-5 main_#t~short13 := main_~i~0 >= 0; 2532#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; 2536#L22-3 assume !!main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 2537#L23 assume main_~i~0 < 2;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; 2542#L23-2 main_~i~0 := main_~i~0 - 1; 2531#L22-5 [2020-11-30 00:56:29,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:29,384 INFO L82 PathProgramCache]: Analyzing trace with hash -1134743541, now seen corresponding path program 7 times [2020-11-30 00:56:29,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:29,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276987934] [2020-11-30 00:56:29,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:29,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:29,411 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:29,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:29,434 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:29,438 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:29,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:29,439 INFO L82 PathProgramCache]: Analyzing trace with hash 56404392, now seen corresponding path program 4 times [2020-11-30 00:56:29,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:29,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901432471] [2020-11-30 00:56:29,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:29,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:29,443 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:29,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:29,446 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:29,447 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:29,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:29,448 INFO L82 PathProgramCache]: Analyzing trace with hash 1926098910, now seen corresponding path program 2 times [2020-11-30 00:56:29,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:29,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125712153] [2020-11-30 00:56:29,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:29,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:29,510 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-11-30 00:56:29,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125712153] [2020-11-30 00:56:29,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [806498702] [2020-11-30 00:56:29,511 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 79 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 79 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:56:29,595 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-30 00:56:29,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 00:56:29,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 00:56:29,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:29,714 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-11-30 00:56:29,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 00:56:29,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2020-11-30 00:56:29,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232749956] [2020-11-30 00:56:29,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:56:29,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 00:56:29,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:56:29,824 INFO L87 Difference]: Start difference. First operand 49 states and 63 transitions. cyclomatic complexity: 19 Second operand 7 states. [2020-11-30 00:56:29,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:29,970 INFO L93 Difference]: Finished difference Result 65 states and 81 transitions. [2020-11-30 00:56:29,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 00:56:29,971 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 81 transitions. [2020-11-30 00:56:29,971 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-11-30 00:56:29,972 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 65 states and 81 transitions. [2020-11-30 00:56:29,972 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2020-11-30 00:56:29,972 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-11-30 00:56:29,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 81 transitions. [2020-11-30 00:56:29,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:56:29,972 INFO L691 BuchiCegarLoop]: Abstraction has 65 states and 81 transitions. [2020-11-30 00:56:29,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 81 transitions. [2020-11-30 00:56:29,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 55. [2020-11-30 00:56:29,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-11-30 00:56:29,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 70 transitions. [2020-11-30 00:56:29,975 INFO L714 BuchiCegarLoop]: Abstraction has 55 states and 70 transitions. [2020-11-30 00:56:29,975 INFO L594 BuchiCegarLoop]: Abstraction has 55 states and 70 transitions. [2020-11-30 00:56:29,975 INFO L427 BuchiCegarLoop]: ======== Iteration 15============ [2020-11-30 00:56:29,975 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 55 states and 70 transitions. [2020-11-30 00:56:29,976 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-30 00:56:29,976 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:56:29,976 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:56:29,977 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2020-11-30 00:56:29,977 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-30 00:56:29,977 INFO L794 eck$LassoCheckResult]: Stem: 2767#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); 2759#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; 2760#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; 2772#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 2773#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; 2742#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 2743#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; 2777#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 2776#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; 2775#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 2774#L17-3 assume !(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296); 2771#L17-4 main_~j~0 := 1; 2746#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; 2747#L22-5 main_#t~short13 := main_~i~0 >= 0; 2782#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; 2781#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 2780#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 2779#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 2748#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; 2749#L22-5 main_#t~short13 := main_~i~0 >= 0; 2793#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; 2789#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 2744#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 2745#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 2750#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; 2778#L22-5 main_#t~short13 := main_~i~0 >= 0; 2764#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; 2765#L22-3 assume !!main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 2768#L23 assume !(main_~i~0 < 2); 2761#L23-2 [2020-11-30 00:56:29,977 INFO L796 eck$LassoCheckResult]: Loop: 2761#L23-2 main_~i~0 := main_~i~0 - 1; 2751#L22-5 main_#t~short13 := main_~i~0 >= 0; 2752#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; 2755#L22-3 assume !!main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 2756#L23 assume main_~i~0 < 2;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; 2761#L23-2 [2020-11-30 00:56:29,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:29,978 INFO L82 PathProgramCache]: Analyzing trace with hash -353509773, now seen corresponding path program 1 times [2020-11-30 00:56:29,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:29,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110403532] [2020-11-30 00:56:29,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:30,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:30,001 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:30,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:30,026 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:30,030 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:30,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:30,031 INFO L82 PathProgramCache]: Analyzing trace with hash 72930612, now seen corresponding path program 5 times [2020-11-30 00:56:30,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:30,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410862527] [2020-11-30 00:56:30,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:30,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:30,035 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:30,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:30,037 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:30,039 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:30,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:30,039 INFO L82 PathProgramCache]: Analyzing trace with hash 2079206914, now seen corresponding path program 1 times [2020-11-30 00:56:30,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:30,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795423357] [2020-11-30 00:56:30,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:30,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:30,066 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:30,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:30,098 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:30,103 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:30,208 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 41 [2020-11-30 00:56:33,153 WARN L193 SmtUtils]: Spent 2.91 s on a formula simplification. DAG size of input: 311 DAG size of output: 204 [2020-11-30 00:56:33,679 WARN L193 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 117 [2020-11-30 00:56:33,682 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:56:33,682 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:56:33,683 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:56:33,683 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:56:33,683 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:56:33,683 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:33,683 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:56:33,683 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:56:33,683 INFO L133 ssoRankerPreferences]: Filename of dumped script: insertion_sort-1.c_Iteration15_Lasso [2020-11-30 00:56:33,683 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:56:33,683 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:56:33,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:33,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:33,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:33,695 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:33,698 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:33,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:33,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:33,707 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:33,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:33,712 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:33,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:33,717 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:33,720 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:33,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:33,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:34,133 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2020-11-30 00:56:34,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:34,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:34,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:34,640 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:56:34,640 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:34,651 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 [2020-11-30 00:56:34,652 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:34,652 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:34,652 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:34,652 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:34,653 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:34,654 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:56:34,656 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:34,678 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 [2020-11-30 00:56:34,680 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:34,680 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:34,680 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:34,680 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:34,680 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:34,680 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:34,680 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:34,682 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) [2020-11-30 00:56:34,705 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 [2020-11-30 00:56:34,707 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:34,707 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:34,707 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:34,707 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:34,707 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:34,708 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:34,708 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:34,709 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) Waiting until toolchain timeout for monitored process 83 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:34,734 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 [2020-11-30 00:56:34,736 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:34,736 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:34,736 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:34,736 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:34,739 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:34,739 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:56:34,742 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:34,763 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 [2020-11-30 00:56:34,765 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:34,765 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:34,765 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:34,765 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:34,765 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:34,765 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:34,765 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:34,766 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) [2020-11-30 00:56:34,789 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 [2020-11-30 00:56:34,790 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:34,790 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:34,791 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:34,791 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:34,792 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:34,792 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 85 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:34,799 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:34,821 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 [2020-11-30 00:56:34,822 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:34,823 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:34,823 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:34,823 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:34,823 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:34,823 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:34,823 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:34,824 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:34,847 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 [2020-11-30 00:56:34,848 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:34,848 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:34,848 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:34,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:34,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:34,849 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:34,849 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:34,850 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:34,872 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 [2020-11-30 00:56:34,873 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:34,873 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:34,873 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:34,873 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:34,874 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:34,874 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:56:34,877 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:34,900 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:56:34,901 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:34,902 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:34,902 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:34,902 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:34,902 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:34,902 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:34,902 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:34,903 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:34,925 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 [2020-11-30 00:56:34,927 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:34,927 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:34,927 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:34,927 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:34,927 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:34,928 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:34,928 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:34,934 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) [2020-11-30 00:56:34,971 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 [2020-11-30 00:56:34,973 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:34,973 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:34,973 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:34,973 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:34,974 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:34,974 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:34,974 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 91 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:34,976 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:35,007 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:56:35,009 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:35,009 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:35,009 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:35,009 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:35,009 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:35,009 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:35,009 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:35,010 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:35,032 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 [2020-11-30 00:56:35,033 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:35,033 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:35,034 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:35,034 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:35,034 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:35,034 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:35,034 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:35,036 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:35,075 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 [2020-11-30 00:56:35,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:35,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:35,078 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:35,078 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:35,079 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:35,079 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:56:35,085 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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) Waiting until toolchain timeout for monitored process 95 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:35,107 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 [2020-11-30 00:56:35,108 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:35,108 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:35,108 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:35,108 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:35,110 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:35,110 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:56:35,112 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:35,134 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 [2020-11-30 00:56:35,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:35,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:35,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:35,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:35,140 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:35,140 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:56:35,151 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:56:35,178 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2020-11-30 00:56:35,178 INFO L444 ModelExtractionUtils]: 5 out of 19 variables were initially zero. Simplification set additionally 12 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:35,180 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 00:56:35,182 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-30 00:56:35,182 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:56:35,182 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-11-30 00:56:35,297 INFO L297 tatePredicateManager]: 29 out of 29 supporting invariants were superfluous and have been removed [2020-11-30 00:56:35,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:35,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:35,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:56:35,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:35,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:35,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-30 00:56:35,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:35,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:35,397 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2020-11-30 00:56:35,398 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 55 states and 70 transitions. cyclomatic complexity: 20 Second operand 5 states. [2020-11-30 00:56:35,448 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 55 states and 70 transitions. cyclomatic complexity: 20. Second operand 5 states. Result 150 states and 193 transitions. Complement of second has 9 states. [2020-11-30 00:56:35,449 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 [2020-11-30 00:56:35,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-30 00:56:35,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2020-11-30 00:56:35,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 29 letters. Loop has 5 letters. [2020-11-30 00:56:35,450 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:56:35,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 34 letters. Loop has 5 letters. [2020-11-30 00:56:35,450 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:56:35,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 29 letters. Loop has 10 letters. [2020-11-30 00:56:35,451 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:56:35,451 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 150 states and 193 transitions. [2020-11-30 00:56:35,452 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-30 00:56:35,453 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 150 states to 119 states and 156 transitions. [2020-11-30 00:56:35,453 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-11-30 00:56:35,453 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-11-30 00:56:35,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 119 states and 156 transitions. [2020-11-30 00:56:35,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:56:35,453 INFO L691 BuchiCegarLoop]: Abstraction has 119 states and 156 transitions. [2020-11-30 00:56:35,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states and 156 transitions. [2020-11-30 00:56:35,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 102. [2020-11-30 00:56:35,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-11-30 00:56:35,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 136 transitions. [2020-11-30 00:56:35,458 INFO L714 BuchiCegarLoop]: Abstraction has 102 states and 136 transitions. [2020-11-30 00:56:35,458 INFO L594 BuchiCegarLoop]: Abstraction has 102 states and 136 transitions. [2020-11-30 00:56:35,458 INFO L427 BuchiCegarLoop]: ======== Iteration 16============ [2020-11-30 00:56:35,458 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 102 states and 136 transitions. [2020-11-30 00:56:35,459 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-30 00:56:35,459 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:56:35,459 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:56:35,460 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2020-11-30 00:56:35,460 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-30 00:56:35,460 INFO L794 eck$LassoCheckResult]: Stem: 3219#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); 3211#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; 3212#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; 3224#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 3225#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; 3194#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 3195#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; 3229#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 3228#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; 3227#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 3226#L17-3 assume !(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296); 3223#L17-4 main_~j~0 := 1; 3198#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; 3199#L22-5 main_#t~short13 := main_~i~0 >= 0; 3253#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; 3251#L22-3 assume !!main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 3246#L23 assume !(main_~i~0 < 2); 3248#L23-2 main_~i~0 := main_~i~0 - 1; 3254#L22-5 main_#t~short13 := main_~i~0 >= 0; 3255#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; 3235#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 3196#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 3197#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 3206#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; 3272#L22-5 main_#t~short13 := main_~i~0 >= 0; 3274#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; 3214#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 3234#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 3233#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 3231#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; 3202#L22-5 main_#t~short13 := main_~i~0 >= 0; 3203#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; 3213#L22-3 assume !!main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 3220#L23 assume !(main_~i~0 < 2); 3215#L23-2 [2020-11-30 00:56:35,461 INFO L796 eck$LassoCheckResult]: Loop: 3215#L23-2 main_~i~0 := main_~i~0 - 1; 3216#L22-5 main_#t~short13 := main_~i~0 >= 0; 3230#L22-1 assume main_#t~short13;call main_#t~mem12 := read~int(main_~#v~0.base, main_~#v~0.offset + 4 * main_~i~0, 4);main_#t~short13 := main_#t~mem12 > main_~key~0; 3207#L22-3 assume !!main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 3208#L23 assume main_~i~0 < 2;call main_#t~mem14 := read~int(main_~#v~0.base, main_~#v~0.offset + 4 * main_~i~0, 4);call write~int(main_#t~mem14, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4);havoc main_#t~mem14; 3215#L23-2 [2020-11-30 00:56:35,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:35,461 INFO L82 PathProgramCache]: Analyzing trace with hash -362290672, now seen corresponding path program 1 times [2020-11-30 00:56:35,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:35,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109170806] [2020-11-30 00:56:35,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:35,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:35,504 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-11-30 00:56:35,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109170806] [2020-11-30 00:56:35,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:56:35,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:56:35,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844198800] [2020-11-30 00:56:35,505 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-30 00:56:35,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:35,506 INFO L82 PathProgramCache]: Analyzing trace with hash 72930612, now seen corresponding path program 6 times [2020-11-30 00:56:35,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:35,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410678367] [2020-11-30 00:56:35,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:35,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:35,509 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:35,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:35,511 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:35,512 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:35,614 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 41 [2020-11-30 00:56:35,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:56:35,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:56:35,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:56:35,643 INFO L87 Difference]: Start difference. First operand 102 states and 136 transitions. cyclomatic complexity: 44 Second operand 4 states. [2020-11-30 00:56:35,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:35,696 INFO L93 Difference]: Finished difference Result 80 states and 104 transitions. [2020-11-30 00:56:35,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:56:35,697 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 80 states and 104 transitions. [2020-11-30 00:56:35,697 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-30 00:56:35,698 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 80 states to 80 states and 104 transitions. [2020-11-30 00:56:35,698 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-11-30 00:56:35,699 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-11-30 00:56:35,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 80 states and 104 transitions. [2020-11-30 00:56:35,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:56:35,699 INFO L691 BuchiCegarLoop]: Abstraction has 80 states and 104 transitions. [2020-11-30 00:56:35,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states and 104 transitions. [2020-11-30 00:56:35,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-11-30 00:56:35,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-11-30 00:56:35,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 104 transitions. [2020-11-30 00:56:35,702 INFO L714 BuchiCegarLoop]: Abstraction has 80 states and 104 transitions. [2020-11-30 00:56:35,702 INFO L594 BuchiCegarLoop]: Abstraction has 80 states and 104 transitions. [2020-11-30 00:56:35,702 INFO L427 BuchiCegarLoop]: ======== Iteration 17============ [2020-11-30 00:56:35,702 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states and 104 transitions. [2020-11-30 00:56:35,703 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-30 00:56:35,703 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:56:35,703 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:56:35,704 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2020-11-30 00:56:35,704 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-30 00:56:35,705 INFO L794 eck$LassoCheckResult]: Stem: 3410#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); 3404#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; 3405#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; 3414#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 3415#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; 3385#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 3386#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; 3421#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 3418#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; 3417#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 3416#L17-3 assume !(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296); 3413#L17-4 main_~j~0 := 1; 3387#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; 3388#L22-5 main_#t~short13 := main_~i~0 >= 0; 3447#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; 3427#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 3428#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 3397#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 3398#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; 3449#L22-5 main_#t~short13 := main_~i~0 >= 0; 3433#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; 3437#L22-3 assume !!main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 3438#L23 assume !(main_~i~0 < 2); 3446#L23-2 main_~i~0 := main_~i~0 - 1; 3440#L22-5 main_#t~short13 := main_~i~0 >= 0; 3441#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; 3407#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 3426#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 3425#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 3423#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; 3422#L22-5 main_#t~short13 := main_~i~0 >= 0; 3420#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; 3419#L22-3 assume !!main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 3411#L23 assume !(main_~i~0 < 2); 3408#L23-2 [2020-11-30 00:56:35,705 INFO L796 eck$LassoCheckResult]: Loop: 3408#L23-2 main_~i~0 := main_~i~0 - 1; 3393#L22-5 main_#t~short13 := main_~i~0 >= 0; 3394#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; 3399#L22-3 assume !!main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 3400#L23 assume main_~i~0 < 2;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; 3408#L23-2 [2020-11-30 00:56:35,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:35,705 INFO L82 PathProgramCache]: Analyzing trace with hash -247927222, now seen corresponding path program 2 times [2020-11-30 00:56:35,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:35,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175264965] [2020-11-30 00:56:35,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:35,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:35,750 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-11-30 00:56:35,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175264965] [2020-11-30 00:56:35,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020414765] [2020-11-30 00:56:35,751 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 98 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 98 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:56:35,815 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-30 00:56:35,815 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 00:56:35,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:56:35,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:35,830 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-11-30 00:56:35,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 00:56:35,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-11-30 00:56:35,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035858292] [2020-11-30 00:56:35,831 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-30 00:56:35,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:35,831 INFO L82 PathProgramCache]: Analyzing trace with hash 72930612, now seen corresponding path program 7 times [2020-11-30 00:56:35,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:35,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400634012] [2020-11-30 00:56:35,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:35,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:35,835 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:35,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:35,837 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:35,838 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:35,949 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 41 [2020-11-30 00:56:35,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:56:35,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:56:35,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:56:35,975 INFO L87 Difference]: Start difference. First operand 80 states and 104 transitions. cyclomatic complexity: 32 Second operand 6 states. [2020-11-30 00:56:36,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:36,055 INFO L93 Difference]: Finished difference Result 99 states and 123 transitions. [2020-11-30 00:56:36,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 00:56:36,056 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 99 states and 123 transitions. [2020-11-30 00:56:36,057 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2020-11-30 00:56:36,057 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 99 states to 99 states and 123 transitions. [2020-11-30 00:56:36,058 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2020-11-30 00:56:36,058 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2020-11-30 00:56:36,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 99 states and 123 transitions. [2020-11-30 00:56:36,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:56:36,058 INFO L691 BuchiCegarLoop]: Abstraction has 99 states and 123 transitions. [2020-11-30 00:56:36,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states and 123 transitions. [2020-11-30 00:56:36,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 89. [2020-11-30 00:56:36,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-11-30 00:56:36,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 112 transitions. [2020-11-30 00:56:36,061 INFO L714 BuchiCegarLoop]: Abstraction has 89 states and 112 transitions. [2020-11-30 00:56:36,061 INFO L594 BuchiCegarLoop]: Abstraction has 89 states and 112 transitions. [2020-11-30 00:56:36,061 INFO L427 BuchiCegarLoop]: ======== Iteration 18============ [2020-11-30 00:56:36,061 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 89 states and 112 transitions. [2020-11-30 00:56:36,062 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2020-11-30 00:56:36,062 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:56:36,062 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:56:36,063 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [5, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2020-11-30 00:56:36,064 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-30 00:56:36,064 INFO L794 eck$LassoCheckResult]: Stem: 3699#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); 3693#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; 3694#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; 3705#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 3706#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; 3676#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 3677#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; 3710#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 3709#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; 3708#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 3707#L17-3 assume !(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296); 3704#L17-4 main_~j~0 := 1; 3678#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; 3679#L22-5 main_#t~short13 := main_~i~0 >= 0; 3736#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; 3735#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 3734#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 3733#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 3680#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; 3681#L22-5 main_#t~short13 := main_~i~0 >= 0; 3725#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; 3722#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 3682#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 3683#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 3688#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; 3732#L22-5 main_#t~short13 := main_~i~0 >= 0; 3726#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; 3727#L22-3 assume !!main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 3764#L23 assume !(main_~i~0 < 2); 3763#L23-2 main_~i~0 := main_~i~0 - 1; 3744#L22-5 main_#t~short13 := main_~i~0 >= 0; 3695#L22-1 assume !main_#t~short13; 3696#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 3721#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 3720#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 3718#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; 3716#L22-5 main_#t~short13 := main_~i~0 >= 0; 3714#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; 3712#L22-3 assume !!main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 3700#L23 assume !(main_~i~0 < 2); 3701#L23-2 [2020-11-30 00:56:36,064 INFO L796 eck$LassoCheckResult]: Loop: 3701#L23-2 main_~i~0 := main_~i~0 - 1; 3717#L22-5 main_#t~short13 := main_~i~0 >= 0; 3715#L22-1 assume main_#t~short13;call main_#t~mem12 := read~int(main_~#v~0.base, main_~#v~0.offset + 4 * main_~i~0, 4);main_#t~short13 := main_#t~mem12 > main_~key~0; 3713#L22-3 assume !!main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 3711#L23 assume !(main_~i~0 < 2); 3701#L23-2 [2020-11-30 00:56:36,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:36,064 INFO L82 PathProgramCache]: Analyzing trace with hash 1974025145, now seen corresponding path program 1 times [2020-11-30 00:56:36,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:36,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377315949] [2020-11-30 00:56:36,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:36,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:36,128 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-11-30 00:56:36,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377315949] [2020-11-30 00:56:36,128 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:56:36,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:56:36,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363756422] [2020-11-30 00:56:36,129 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-30 00:56:36,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:36,129 INFO L82 PathProgramCache]: Analyzing trace with hash 72930614, now seen corresponding path program 1 times [2020-11-30 00:56:36,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:36,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887838715] [2020-11-30 00:56:36,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:36,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:36,132 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:36,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:36,135 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:36,136 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:36,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:56:36,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:56:36,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:56:36,241 INFO L87 Difference]: Start difference. First operand 89 states and 112 transitions. cyclomatic complexity: 32 Second operand 5 states. [2020-11-30 00:56:36,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:36,308 INFO L93 Difference]: Finished difference Result 99 states and 121 transitions. [2020-11-30 00:56:36,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:56:36,309 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 99 states and 121 transitions. [2020-11-30 00:56:36,310 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2020-11-30 00:56:36,311 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 99 states to 96 states and 117 transitions. [2020-11-30 00:56:36,311 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2020-11-30 00:56:36,312 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2020-11-30 00:56:36,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 96 states and 117 transitions. [2020-11-30 00:56:36,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:56:36,312 INFO L691 BuchiCegarLoop]: Abstraction has 96 states and 117 transitions. [2020-11-30 00:56:36,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states and 117 transitions. [2020-11-30 00:56:36,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 87. [2020-11-30 00:56:36,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-11-30 00:56:36,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 107 transitions. [2020-11-30 00:56:36,315 INFO L714 BuchiCegarLoop]: Abstraction has 87 states and 107 transitions. [2020-11-30 00:56:36,315 INFO L594 BuchiCegarLoop]: Abstraction has 87 states and 107 transitions. [2020-11-30 00:56:36,315 INFO L427 BuchiCegarLoop]: ======== Iteration 19============ [2020-11-30 00:56:36,315 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 87 states and 107 transitions. [2020-11-30 00:56:36,316 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2020-11-30 00:56:36,316 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:56:36,316 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:56:36,317 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2020-11-30 00:56:36,318 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-30 00:56:36,318 INFO L794 eck$LassoCheckResult]: Stem: 3898#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); 3892#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; 3893#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; 3903#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 3904#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; 3874#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 3875#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; 3908#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 3907#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; 3906#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 3905#L17-3 assume !(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296); 3902#L17-4 main_~j~0 := 1; 3878#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; 3879#L22-5 main_#t~short13 := main_~i~0 >= 0; 3935#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; 3921#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 3922#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 3882#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 3883#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; 3931#L22-5 main_#t~short13 := main_~i~0 >= 0; 3932#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; 3926#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 3876#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 3877#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 3880#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; 3881#L22-5 main_#t~short13 := main_~i~0 >= 0; 3923#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; 3924#L22-3 assume !!main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 3900#L23 assume !(main_~i~0 < 2); 3901#L23-2 main_~i~0 := main_~i~0 - 1; 3960#L22-5 main_#t~short13 := main_~i~0 >= 0; 3959#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; 3958#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 3920#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 3919#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 3917#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; 3915#L22-5 main_#t~short13 := main_~i~0 >= 0; 3914#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; 3911#L22-3 assume !!main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 3899#L23 assume !(main_~i~0 < 2); 3894#L23-2 [2020-11-30 00:56:36,318 INFO L796 eck$LassoCheckResult]: Loop: 3894#L23-2 main_~i~0 := main_~i~0 - 1; 3884#L22-5 main_#t~short13 := main_~i~0 >= 0; 3885#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; 3888#L22-3 assume !!main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 3889#L23 assume !(main_~i~0 < 2); 3894#L23-2 [2020-11-30 00:56:36,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:36,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1293966775, now seen corresponding path program 3 times [2020-11-30 00:56:36,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:36,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208716051] [2020-11-30 00:56:36,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:36,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:36,619 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 34 [2020-11-30 00:56:36,868 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 24 proven. 32 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-30 00:56:36,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208716051] [2020-11-30 00:56:36,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34373716] [2020-11-30 00:56:36,869 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 99 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 99 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:56:36,952 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2020-11-30 00:56:36,952 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 00:56:36,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 18 conjunts are in the unsatisfiable core [2020-11-30 00:56:36,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:36,974 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 [2020-11-30 00:56:36,974 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-30 00:56:37,008 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:56:37,016 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 [2020-11-30 00:56:37,016 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-30 00:56:37,043 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-30 00:56:37,043 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2020-11-30 00:56:37,044 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:48, output treesize:46 [2020-11-30 00:56:37,308 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-30 00:56:37,564 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 32 proven. 19 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-30 00:56:37,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 00:56:37,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 21 [2020-11-30 00:56:37,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221566806] [2020-11-30 00:56:37,565 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-30 00:56:37,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:37,567 INFO L82 PathProgramCache]: Analyzing trace with hash 72930614, now seen corresponding path program 2 times [2020-11-30 00:56:37,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:37,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520597056] [2020-11-30 00:56:37,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:37,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:37,570 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:37,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:37,572 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:37,573 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:37,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:56:37,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-11-30 00:56:37,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2020-11-30 00:56:37,666 INFO L87 Difference]: Start difference. First operand 87 states and 107 transitions. cyclomatic complexity: 29 Second operand 21 states. [2020-11-30 00:56:39,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:39,113 INFO L93 Difference]: Finished difference Result 141 states and 172 transitions. [2020-11-30 00:56:39,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-30 00:56:39,114 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 141 states and 172 transitions. [2020-11-30 00:56:39,115 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2020-11-30 00:56:39,116 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 141 states to 90 states and 110 transitions. [2020-11-30 00:56:39,116 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2020-11-30 00:56:39,116 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2020-11-30 00:56:39,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 90 states and 110 transitions. [2020-11-30 00:56:39,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:56:39,116 INFO L691 BuchiCegarLoop]: Abstraction has 90 states and 110 transitions. [2020-11-30 00:56:39,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states and 110 transitions. [2020-11-30 00:56:39,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 89. [2020-11-30 00:56:39,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-11-30 00:56:39,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 109 transitions. [2020-11-30 00:56:39,119 INFO L714 BuchiCegarLoop]: Abstraction has 89 states and 109 transitions. [2020-11-30 00:56:39,119 INFO L594 BuchiCegarLoop]: Abstraction has 89 states and 109 transitions. [2020-11-30 00:56:39,119 INFO L427 BuchiCegarLoop]: ======== Iteration 20============ [2020-11-30 00:56:39,119 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 89 states and 109 transitions. [2020-11-30 00:56:39,120 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2020-11-30 00:56:39,120 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:56:39,120 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:56:39,123 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2020-11-30 00:56:39,123 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-30 00:56:39,125 INFO L794 eck$LassoCheckResult]: Stem: 4287#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); 4281#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; 4282#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; 4292#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 4293#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; 4263#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 4264#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; 4299#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 4298#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; 4297#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 4296#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; 4295#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 4294#L17-3 assume !(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296); 4291#L17-4 main_~j~0 := 1; 4265#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; 4266#L22-5 main_#t~short13 := main_~i~0 >= 0; 4324#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; 4323#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 4269#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 4270#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 4267#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; 4268#L22-5 main_#t~short13 := main_~i~0 >= 0; 4317#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; 4313#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 4314#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 4275#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 4276#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; 4321#L22-5 main_#t~short13 := main_~i~0 >= 0; 4322#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; 4345#L22-3 assume !!main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 4289#L23 assume !(main_~i~0 < 2); 4290#L23-2 main_~i~0 := main_~i~0 - 1; 4337#L22-5 main_#t~short13 := main_~i~0 >= 0; 4335#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; 4336#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 4311#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 4310#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 4308#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; 4306#L22-5 main_#t~short13 := main_~i~0 >= 0; 4304#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; 4302#L22-3 assume !!main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 4288#L23 assume !(main_~i~0 < 2); 4285#L23-2 [2020-11-30 00:56:39,125 INFO L796 eck$LassoCheckResult]: Loop: 4285#L23-2 main_~i~0 := main_~i~0 - 1; 4271#L22-5 main_#t~short13 := main_~i~0 >= 0; 4272#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; 4277#L22-3 assume !!main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 4278#L23 assume !(main_~i~0 < 2); 4285#L23-2 [2020-11-30 00:56:39,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:39,127 INFO L82 PathProgramCache]: Analyzing trace with hash 3606713, now seen corresponding path program 4 times [2020-11-30 00:56:39,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:39,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068968034] [2020-11-30 00:56:39,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:39,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:39,165 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:39,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:39,207 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:39,214 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:39,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:39,215 INFO L82 PathProgramCache]: Analyzing trace with hash 72930614, now seen corresponding path program 3 times [2020-11-30 00:56:39,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:39,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670483169] [2020-11-30 00:56:39,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:39,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:39,220 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:39,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:39,229 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:39,230 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:39,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:39,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1866628990, now seen corresponding path program 5 times [2020-11-30 00:56:39,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:39,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760054648] [2020-11-30 00:56:39,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:39,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:39,268 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:39,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:39,301 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:39,306 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:45,919 WARN L193 SmtUtils]: Spent 6.51 s on a formula simplification. DAG size of input: 409 DAG size of output: 251 [2020-11-30 00:56:47,262 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 157 DAG size of output: 123 [2020-11-30 00:56:47,266 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:56:47,266 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:56:47,266 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:56:47,266 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:56:47,266 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:56:47,266 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:47,266 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:56:47,266 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:56:47,267 INFO L133 ssoRankerPreferences]: Filename of dumped script: insertion_sort-1.c_Iteration20_Lasso [2020-11-30 00:56:47,267 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:56:47,267 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:56:47,269 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:47,277 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:47,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:47,282 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:47,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:47,288 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:47,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:47,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:47,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:47,676 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-11-30 00:56:47,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:47,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:47,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:47,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:47,728 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:47,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:47,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:47,739 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:47,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:56:47,941 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2020-11-30 00:56:48,278 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:56:48,279 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/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 [2020-11-30 00:56:48,281 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 [2020-11-30 00:56:48,282 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:48,282 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:48,282 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:48,282 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:48,283 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:48,284 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:56:48,286 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 101 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 101 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:48,308 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 [2020-11-30 00:56:48,309 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:48,309 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:48,309 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:48,309 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:48,309 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:48,309 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:48,309 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:48,310 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 102 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 102 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:48,332 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 [2020-11-30 00:56:48,333 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:48,333 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:48,333 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:48,333 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:48,333 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:48,334 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:48,334 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:48,335 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 103 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 103 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:48,356 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 [2020-11-30 00:56:48,358 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:48,358 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:48,358 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:48,358 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:48,358 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:48,358 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:48,358 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:48,359 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 104 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 104 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:48,381 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 [2020-11-30 00:56:48,382 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:48,382 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:48,383 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:48,383 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:48,383 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:48,383 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:48,383 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:48,384 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 105 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 105 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:48,406 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 [2020-11-30 00:56:48,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:48,408 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:48,408 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:48,408 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:48,409 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:48,409 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:56:48,412 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 106 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 106 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:48,433 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 [2020-11-30 00:56:48,435 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:48,435 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:48,435 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:48,435 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:48,436 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:48,436 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:56:48,439 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 107 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 107 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:48,460 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 [2020-11-30 00:56:48,462 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:48,462 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:48,462 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:48,462 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:48,462 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:48,462 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:48,462 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:48,463 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 108 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 108 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:48,485 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 [2020-11-30 00:56:48,486 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:48,486 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:48,486 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:48,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:48,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:48,487 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:48,487 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:48,488 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 109 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 109 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:48,510 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 [2020-11-30 00:56:48,511 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:48,511 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:48,511 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:48,511 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:48,513 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:48,513 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:56:48,515 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 110 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 110 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:48,537 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 [2020-11-30 00:56:48,538 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:48,539 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:48,539 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:48,539 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:48,539 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:48,539 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:48,539 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:48,540 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 111 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 111 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:48,562 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 [2020-11-30 00:56:48,563 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:48,563 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:48,563 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:48,563 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:48,565 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:48,565 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:56:48,567 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 112 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 112 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:48,589 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:56:48,590 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:48,591 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:48,591 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:48,591 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:48,591 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:48,591 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:48,591 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:48,592 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 113 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 113 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:48,619 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:56:48,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:48,621 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:56:48,621 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:48,621 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:48,621 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:48,621 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:56:48,621 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:56:48,622 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 114 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 114 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:48,644 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 [2020-11-30 00:56:48,646 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:56:48,646 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:56:48,646 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:56:48,646 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:56:48,651 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:56:48,651 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:56:48,660 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:56:48,673 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2020-11-30 00:56:48,674 INFO L444 ModelExtractionUtils]: 7 out of 19 variables were initially zero. Simplification set additionally 10 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 115 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 115 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:56:48,676 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 00:56:48,678 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-30 00:56:48,678 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:56:48,678 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-11-30 00:56:48,766 INFO L297 tatePredicateManager]: 23 out of 23 supporting invariants were superfluous and have been removed [2020-11-30 00:56:48,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:48,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:48,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:56:48,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:48,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:48,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:56:48,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:48,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:48,913 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 [2020-11-30 00:56:48,913 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 89 states and 109 transitions. cyclomatic complexity: 29 Second operand 3 states. [2020-11-30 00:56:48,956 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 89 states and 109 transitions. cyclomatic complexity: 29. Second operand 3 states. Result 110 states and 135 transitions. Complement of second has 5 states. [2020-11-30 00:56:48,958 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 [2020-11-30 00:56:48,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-30 00:56:48,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 28 transitions. [2020-11-30 00:56:48,959 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 42 letters. Loop has 5 letters. [2020-11-30 00:56:48,959 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:56:48,959 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-30 00:56:48,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:49,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:49,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:56:49,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:49,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:49,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:56:49,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:49,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:49,044 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-30 00:56:49,044 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 89 states and 109 transitions. cyclomatic complexity: 29 Second operand 3 states. [2020-11-30 00:56:49,070 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 89 states and 109 transitions. cyclomatic complexity: 29. Second operand 3 states. Result 110 states and 135 transitions. Complement of second has 5 states. [2020-11-30 00:56:49,071 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 [2020-11-30 00:56:49,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-30 00:56:49,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 28 transitions. [2020-11-30 00:56:49,072 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 42 letters. Loop has 5 letters. [2020-11-30 00:56:49,072 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:56:49,072 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-30 00:56:49,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:49,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:56:49,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:49,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:49,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:56:49,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:49,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:56:49,142 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-30 00:56:49,142 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 89 states and 109 transitions. cyclomatic complexity: 29 Second operand 3 states. [2020-11-30 00:56:49,178 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 89 states and 109 transitions. cyclomatic complexity: 29. Second operand 3 states. Result 128 states and 159 transitions. Complement of second has 4 states. [2020-11-30 00:56:49,180 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 [2020-11-30 00:56:49,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-30 00:56:49,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 29 transitions. [2020-11-30 00:56:49,181 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 29 transitions. Stem has 42 letters. Loop has 5 letters. [2020-11-30 00:56:49,181 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:56:49,181 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 29 transitions. Stem has 47 letters. Loop has 5 letters. [2020-11-30 00:56:49,181 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:56:49,182 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 29 transitions. Stem has 42 letters. Loop has 10 letters. [2020-11-30 00:56:49,182 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:56:49,182 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 128 states and 159 transitions. [2020-11-30 00:56:49,183 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-30 00:56:49,184 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 128 states to 105 states and 127 transitions. [2020-11-30 00:56:49,184 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2020-11-30 00:56:49,184 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2020-11-30 00:56:49,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 105 states and 127 transitions. [2020-11-30 00:56:49,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:56:49,185 INFO L691 BuchiCegarLoop]: Abstraction has 105 states and 127 transitions. [2020-11-30 00:56:49,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states and 127 transitions. [2020-11-30 00:56:49,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 90. [2020-11-30 00:56:49,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-11-30 00:56:49,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 108 transitions. [2020-11-30 00:56:49,187 INFO L714 BuchiCegarLoop]: Abstraction has 90 states and 108 transitions. [2020-11-30 00:56:49,187 INFO L594 BuchiCegarLoop]: Abstraction has 90 states and 108 transitions. [2020-11-30 00:56:49,188 INFO L427 BuchiCegarLoop]: ======== Iteration 21============ [2020-11-30 00:56:49,188 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 90 states and 108 transitions. [2020-11-30 00:56:49,188 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-30 00:56:49,188 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:56:49,188 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:56:49,189 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1] [2020-11-30 00:56:49,189 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-30 00:56:49,189 INFO L794 eck$LassoCheckResult]: Stem: 5272#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); 5265#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; 5266#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; 5278#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 5279#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; 5247#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 5248#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; 5285#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 5284#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; 5283#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 5282#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; 5281#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 5280#L17-3 assume !(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296); 5277#L17-4 main_~j~0 := 1; 5249#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; 5250#L22-5 main_#t~short13 := main_~i~0 >= 0; 5319#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; 5318#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 5253#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 5254#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 5251#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; 5252#L22-5 main_#t~short13 := main_~i~0 >= 0; 5315#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; 5298#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 5299#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 5295#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 5296#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; 5310#L22-5 main_#t~short13 := main_~i~0 >= 0; 5300#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; 5301#L22-3 assume !!main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 5264#L23 assume !(main_~i~0 < 2); 5316#L23-2 main_~i~0 := main_~i~0 - 1; 5271#L22-5 main_#t~short13 := main_~i~0 >= 0; 5335#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; 5334#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 5297#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 5259#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 5260#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; 5288#L22-5 main_#t~short13 := main_~i~0 >= 0; 5287#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; 5286#L22-3 assume !!main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 5273#L23 assume !(main_~i~0 < 2); 5274#L23-2 main_~i~0 := main_~i~0 - 1; 5255#L22-5 [2020-11-30 00:56:49,190 INFO L796 eck$LassoCheckResult]: Loop: 5255#L22-5 main_#t~short13 := main_~i~0 >= 0; 5256#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; 5261#L22-3 assume !!main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 5262#L23 assume main_~i~0 < 2;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; 5269#L23-2 main_~i~0 := main_~i~0 - 1; 5255#L22-5 [2020-11-30 00:56:49,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:49,190 INFO L82 PathProgramCache]: Analyzing trace with hash 111808150, now seen corresponding path program 6 times [2020-11-30 00:56:49,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:49,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902598873] [2020-11-30 00:56:49,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:49,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:49,221 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:49,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:49,254 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:49,260 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:49,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:49,261 INFO L82 PathProgramCache]: Analyzing trace with hash 56404392, now seen corresponding path program 8 times [2020-11-30 00:56:49,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:49,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869893174] [2020-11-30 00:56:49,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:49,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:49,264 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:49,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:49,266 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:49,267 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:49,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:49,268 INFO L82 PathProgramCache]: Analyzing trace with hash 2030923827, now seen corresponding path program 2 times [2020-11-30 00:56:49,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:49,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759003124] [2020-11-30 00:56:49,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:49,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:56:49,351 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 13 proven. 47 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-11-30 00:56:49,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759003124] [2020-11-30 00:56:49,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1753547668] [2020-11-30 00:56:49,351 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 116 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 116 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 00:56:49,441 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-30 00:56:49,441 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-30 00:56:49,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 00:56:49,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:56:49,490 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 29 proven. 31 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-11-30 00:56:49,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-30 00:56:49,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2020-11-30 00:56:49,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726093569] [2020-11-30 00:56:49,648 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 41 [2020-11-30 00:56:49,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:56:49,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-30 00:56:49,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-11-30 00:56:49,675 INFO L87 Difference]: Start difference. First operand 90 states and 108 transitions. cyclomatic complexity: 27 Second operand 9 states. [2020-11-30 00:56:49,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:56:49,846 INFO L93 Difference]: Finished difference Result 152 states and 177 transitions. [2020-11-30 00:56:49,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 00:56:49,847 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 152 states and 177 transitions. [2020-11-30 00:56:49,848 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-30 00:56:49,850 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 152 states to 145 states and 170 transitions. [2020-11-30 00:56:49,850 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2020-11-30 00:56:49,850 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-11-30 00:56:49,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 145 states and 170 transitions. [2020-11-30 00:56:49,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-30 00:56:49,851 INFO L691 BuchiCegarLoop]: Abstraction has 145 states and 170 transitions. [2020-11-30 00:56:49,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states and 170 transitions. [2020-11-30 00:56:49,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 102. [2020-11-30 00:56:49,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-11-30 00:56:49,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 122 transitions. [2020-11-30 00:56:49,854 INFO L714 BuchiCegarLoop]: Abstraction has 102 states and 122 transitions. [2020-11-30 00:56:49,854 INFO L594 BuchiCegarLoop]: Abstraction has 102 states and 122 transitions. [2020-11-30 00:56:49,854 INFO L427 BuchiCegarLoop]: ======== Iteration 22============ [2020-11-30 00:56:49,854 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 102 states and 122 transitions. [2020-11-30 00:56:49,855 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-30 00:56:49,855 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:56:49,855 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:56:49,856 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [6, 6, 5, 5, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2020-11-30 00:56:49,856 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-30 00:56:49,856 INFO L794 eck$LassoCheckResult]: Stem: 5674#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); 5666#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; 5667#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; 5679#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 5680#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; 5650#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 5651#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; 5686#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 5685#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; 5684#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 5683#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; 5682#L17-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 5681#L17-3 assume !(main_~j~0 % 4294967296 < main_~SIZE~0 % 4294967296); 5678#L17-4 main_~j~0 := 1; 5652#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; 5653#L22-5 main_#t~short13 := main_~i~0 >= 0; 5714#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; 5713#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 5712#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 5711#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 5710#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; 5707#L22-5 main_#t~short13 := main_~i~0 >= 0; 5709#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; 5696#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 5697#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 5751#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 5750#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; 5719#L22-5 main_#t~short13 := main_~i~0 >= 0; 5720#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; 5727#L22-3 assume !!main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 5665#L23 assume !(main_~i~0 < 2); 5723#L23-2 main_~i~0 := main_~i~0 - 1; 5724#L22-5 main_#t~short13 := main_~i~0 >= 0; 5732#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; 5730#L22-3 assume !main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 5695#L22-6 call write~int(main_~key~0, main_~#v~0.base, main_~#v~0.offset + 4 * (1 + main_~i~0), 4); 5694#L19-2 main_#t~post10 := main_~j~0;main_~j~0 := 1 + main_#t~post10;havoc main_#t~post10; 5687#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; 5658#L22-5 main_#t~short13 := main_~i~0 >= 0; 5659#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; 5662#L22-3 assume !!main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 5663#L23 assume !(main_~i~0 < 2); 5671#L23-2 main_~i~0 := main_~i~0 - 1; 5672#L22-5 main_#t~short13 := main_~i~0 >= 0; 5693#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; 5692#L22-3 assume !!main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 5691#L23 assume !(main_~i~0 < 2); 5689#L23-2 main_~i~0 := main_~i~0 - 1; 5690#L22-5 [2020-11-30 00:56:49,856 INFO L796 eck$LassoCheckResult]: Loop: 5690#L22-5 main_#t~short13 := main_~i~0 >= 0; 5668#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; 5669#L22-3 assume !!main_#t~short13;havoc main_#t~short13;havoc main_#t~mem12; 5675#L23 assume main_~i~0 < 2;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; 5676#L23-2 main_~i~0 := main_~i~0 - 1; 5690#L22-5 [2020-11-30 00:56:49,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:49,857 INFO L82 PathProgramCache]: Analyzing trace with hash 2030923889, now seen corresponding path program 7 times [2020-11-30 00:56:49,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:49,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804639817] [2020-11-30 00:56:49,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:49,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:49,892 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:49,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:49,925 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:49,932 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:49,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:49,932 INFO L82 PathProgramCache]: Analyzing trace with hash 56404392, now seen corresponding path program 9 times [2020-11-30 00:56:49,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:49,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643128449] [2020-11-30 00:56:49,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:49,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:49,935 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:49,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:49,937 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:49,938 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:49,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:56:49,939 INFO L82 PathProgramCache]: Analyzing trace with hash 139722552, now seen corresponding path program 3 times [2020-11-30 00:56:49,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:56:49,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894688888] [2020-11-30 00:56:49,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:56:49,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:49,981 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:50,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:56:50,023 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:56:50,029 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:56:50,149 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 41 [2020-11-30 00:56:59,315 WARN L193 SmtUtils]: Spent 9.11 s on a formula simplification. DAG size of input: 441 DAG size of output: 273 [2020-11-30 00:57:02,116 WARN L193 SmtUtils]: Spent 2.69 s on a formula simplification. DAG size of input: 214 DAG size of output: 152 [2020-11-30 00:57:02,121 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:57:02,121 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:57:02,121 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:57:02,121 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:57:02,121 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:57:02,121 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:57:02,121 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:57:02,121 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:57:02,121 INFO L133 ssoRankerPreferences]: Filename of dumped script: insertion_sort-1.c_Iteration22_Lasso [2020-11-30 00:57:02,122 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:57:02,122 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:57:02,122 WARN L313 ript$VariableManager]: TermVariabe aux_div_v_ULTIMATE.start_main_~j~0_237_47 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:57:02,122 WARN L313 ript$VariableManager]: TermVariabe aux_mod_v_ULTIMATE.start_main_~j~0_237_47 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 00:57:02,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:57:02,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:57:02,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:57:02,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:57:02,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:57:02,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:57:02,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:57:02,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:57:02,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:57:02,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:57:02,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:57:02,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:57:02,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:57:02,205 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:57:02,209 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:57:02,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:57:02,216 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:57:02,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:57:03,547 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 82 [2020-11-30 00:57:03,964 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2020-11-30 00:57:04,300 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:57:04,301 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 117 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 117 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:57:04,305 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 [2020-11-30 00:57:04,307 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:57:04,307 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:57:04,307 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:57:04,307 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:57:04,307 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:57:04,307 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:57:04,308 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:57:04,309 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 118 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 118 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:57:04,336 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:57:04,337 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:57:04,338 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:57:04,338 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:57:04,338 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:57:04,338 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:57:04,338 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:57:04,338 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:57:04,340 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 119 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 119 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:57:04,366 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 [2020-11-30 00:57:04,367 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:57:04,367 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:57:04,368 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:57:04,368 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:57:04,368 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:57:04,368 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:57:04,368 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:57:04,370 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 120 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 120 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:57:04,396 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 [2020-11-30 00:57:04,397 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:57:04,397 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:57:04,398 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:57:04,398 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:57:04,398 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:57:04,398 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:57:04,399 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:57:04,403 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 121 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 121 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:57:04,428 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 [2020-11-30 00:57:04,429 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:57:04,429 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:57:04,430 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:57:04,430 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:57:04,431 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:57:04,431 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:57:04,434 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 122 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 122 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:57:04,459 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 [2020-11-30 00:57:04,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:57:04,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:57:04,461 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:57:04,461 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:57:04,462 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:57:04,462 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:57:04,465 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 123 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 123 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:57:04,491 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 [2020-11-30 00:57:04,493 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:57:04,493 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:57:04,493 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:57:04,493 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:57:04,493 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:57:04,493 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:57:04,494 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:57:04,495 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 124 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 124 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:57:04,521 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 [2020-11-30 00:57:04,522 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:57:04,522 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:57:04,522 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:57:04,522 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:57:04,522 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:57:04,523 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:57:04,523 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:57:04,524 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 125 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 125 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:57:04,553 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 [2020-11-30 00:57:04,555 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:57:04,555 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:57:04,555 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:57:04,555 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:57:04,557 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:57:04,557 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:57:04,560 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 126 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 126 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:57:04,586 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 [2020-11-30 00:57:04,587 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:57:04,587 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:57:04,587 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:57:04,587 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:57:04,587 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:57:04,588 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:57:04,588 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:57:04,589 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 127 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 127 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:57:04,616 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 [2020-11-30 00:57:04,618 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:57:04,618 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:57:04,618 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:57:04,618 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:57:04,618 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:57:04,619 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:57:04,619 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:57:04,620 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 128 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 128 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:57:04,648 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 [2020-11-30 00:57:04,649 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:57:04,649 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:57:04,650 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:57:04,650 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:57:04,650 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:57:04,650 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:57:04,650 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:57:04,651 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 129 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 129 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:57:04,678 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 [2020-11-30 00:57:04,679 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:57:04,679 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:57:04,679 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:57:04,679 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:57:04,679 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:57:04,680 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:57:04,680 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:57:04,681 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 130 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 130 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:57:04,706 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:57:04,708 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:57:04,708 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:57:04,708 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:57:04,708 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:57:04,708 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:57:04,708 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:57:04,709 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:57:04,710 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 131 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 131 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:57:04,736 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:57:04,738 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:57:04,738 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:57:04,738 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:57:04,738 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:57:04,738 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:57:04,738 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:57:04,739 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:57:04,740 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 132 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 132 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:57:04,765 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:57:04,767 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:57:04,767 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:57:04,767 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:57:04,767 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:57:04,767 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:57:04,768 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:57:04,768 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:57:04,769 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 133 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 133 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:57:04,795 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:57:04,797 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:57:04,797 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:57:04,797 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:57:04,797 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:57:04,799 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:57:04,799 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:57:04,803 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 134 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 134 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:57:04,830 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:57:04,831 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:57:04,831 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:57:04,831 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:57:04,831 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:57:04,833 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:57:04,833 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:57:04,836 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 135 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 135 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:57:04,861 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 [2020-11-30 00:57:04,862 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:57:04,863 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:57:04,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:57:04,863 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:57:04,863 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:57:04,863 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:57:04,863 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:57:04,865 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 136 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 136 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:57:04,891 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-30 00:57:04,893 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:57:04,893 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:57:04,893 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:57:04,893 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:57:04,894 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:57:04,895 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:57:04,897 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 137 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 137 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:57:04,923 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 [2020-11-30 00:57:04,925 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:57:04,925 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:57:04,925 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:57:04,925 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:57:04,928 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:57:04,928 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:57:04,933 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 138 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 138 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:57:04,959 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 [2020-11-30 00:57:04,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:57:04,960 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:57:04,960 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:57:04,960 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:57:04,962 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:57:04,962 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:57:04,965 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 139 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 139 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:57:04,992 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 [2020-11-30 00:57:04,993 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:57:04,993 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:57:04,994 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:57:04,994 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:57:04,995 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:57:04,995 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:57:04,998 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 140 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 140 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:57:05,023 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 [2020-11-30 00:57:05,024 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:57:05,025 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:57:05,025 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:57:05,025 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:57:05,025 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:57:05,025 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:57:05,025 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:57:05,027 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 141 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 141 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:57:05,053 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 [2020-11-30 00:57:05,054 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:57:05,054 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:57:05,055 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:57:05,055 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:57:05,055 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:57:05,055 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:57:05,055 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:57:05,057 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 142 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 142 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:57:05,083 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 [2020-11-30 00:57:05,085 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:57:05,085 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:57:05,085 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:57:05,085 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:57:05,090 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:57:05,090 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:57:05,100 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:57:05,116 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2020-11-30 00:57:05,116 INFO L444 ModelExtractionUtils]: 9 out of 19 variables were initially zero. Simplification set additionally 7 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7f610526-cbbe-4b70-9266-718a9d7f6899/bin/uautomizer/z3 Starting monitored process 143 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 143 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:57:05,118 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-30 00:57:05,120 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-30 00:57:05,120 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:57:05,121 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#v~0.base)_8, ULTIMATE.start_main_~i~0) = 1*v_rep(select #length ULTIMATE.start_main_~#v~0.base)_8 + 16*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-11-30 00:57:05,226 INFO L297 tatePredicateManager]: 24 out of 24 supporting invariants were superfluous and have been removed [2020-11-30 00:57:05,227 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 00:57:05,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:57:05,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:57:05,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:57:05,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:57:05,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:57:05,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 00:57:05,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:57:05,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:57:05,364 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2020-11-30 00:57:05,364 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 102 states and 122 transitions. cyclomatic complexity: 29 Second operand 5 states. [2020-11-30 00:57:05,450 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 102 states and 122 transitions. cyclomatic complexity: 29. Second operand 5 states. Result 225 states and 260 transitions. Complement of second has 11 states. [2020-11-30 00:57:05,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2020-11-30 00:57:05,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-30 00:57:05,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 31 transitions. [2020-11-30 00:57:05,459 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 31 transitions. Stem has 48 letters. Loop has 5 letters. [2020-11-30 00:57:05,459 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:57:05,459 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-30 00:57:05,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:57:05,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:57:05,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:57:05,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:57:05,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:57:05,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 00:57:05,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:57:05,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:57:05,681 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 4 loop predicates [2020-11-30 00:57:05,681 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 102 states and 122 transitions. cyclomatic complexity: 29 Second operand 5 states. [2020-11-30 00:57:05,793 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 102 states and 122 transitions. cyclomatic complexity: 29. Second operand 5 states. Result 225 states and 260 transitions. Complement of second has 11 states. [2020-11-30 00:57:05,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2020-11-30 00:57:05,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-30 00:57:05,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 31 transitions. [2020-11-30 00:57:05,795 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 31 transitions. Stem has 48 letters. Loop has 5 letters. [2020-11-30 00:57:05,795 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:57:05,795 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-30 00:57:05,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:57:05,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:57:05,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:57:05,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:57:05,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:57:05,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 00:57:05,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:57:05,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:57:05,928 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 4 loop predicates [2020-11-30 00:57:05,928 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 102 states and 122 transitions. cyclomatic complexity: 29 Second operand 5 states. [2020-11-30 00:57:06,067 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 102 states and 122 transitions. cyclomatic complexity: 29. Second operand 5 states. Result 209 states and 241 transitions. Complement of second has 12 states. [2020-11-30 00:57:06,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2020-11-30 00:57:06,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-30 00:57:06,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 33 transitions. [2020-11-30 00:57:06,069 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 48 letters. Loop has 5 letters. [2020-11-30 00:57:06,069 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:57:06,069 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 53 letters. Loop has 5 letters. [2020-11-30 00:57:06,070 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:57:06,070 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 48 letters. Loop has 10 letters. [2020-11-30 00:57:06,070 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:57:06,070 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 209 states and 241 transitions. [2020-11-30 00:57:06,073 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:57:06,073 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 209 states to 0 states and 0 transitions. [2020-11-30 00:57:06,073 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-30 00:57:06,073 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-30 00:57:06,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-30 00:57:06,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:57:06,074 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:57:06,074 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:57:06,074 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:57:06,074 INFO L427 BuchiCegarLoop]: ======== Iteration 23============ [2020-11-30 00:57:06,074 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:57:06,074 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:57:06,074 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-30 00:57:06,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:57:06 BoogieIcfgContainer [2020-11-30 00:57:06,081 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:57:06,082 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:57:06,082 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:57:06,083 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:57:06,083 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:56:04" (3/4) ... [2020-11-30 00:57:06,087 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 00:57:06,087 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:57:06,088 INFO L168 Benchmark]: Toolchain (without parser) took 62658.30 ms. Allocated memory was 83.9 MB in the beginning and 408.9 MB in the end (delta: 325.1 MB). Free memory was 52.7 MB in the beginning and 305.0 MB in the end (delta: -252.4 MB). Peak memory consumption was 71.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:57:06,089 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 83.9 MB. Free memory was 54.2 MB in the beginning and 54.2 MB in the end (delta: 28.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:57:06,089 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.58 ms. Allocated memory was 83.9 MB in the beginning and 111.1 MB in the end (delta: 27.3 MB). Free memory was 52.4 MB in the beginning and 85.8 MB in the end (delta: -33.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:57:06,090 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.98 ms. Allocated memory is still 111.1 MB. Free memory was 85.8 MB in the beginning and 84.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:57:06,090 INFO L168 Benchmark]: Boogie Preprocessor took 42.15 ms. Allocated memory is still 111.1 MB. Free memory was 84.1 MB in the beginning and 82.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:57:06,091 INFO L168 Benchmark]: RCFGBuilder took 613.15 ms. Allocated memory is still 111.1 MB. Free memory was 82.8 MB in the beginning and 67.3 MB in the end (delta: 15.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:57:06,091 INFO L168 Benchmark]: BuchiAutomizer took 61606.41 ms. Allocated memory was 111.1 MB in the beginning and 408.9 MB in the end (delta: 297.8 MB). Free memory was 67.3 MB in the beginning and 305.0 MB in the end (delta: -237.7 MB). Peak memory consumption was 61.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:57:06,092 INFO L168 Benchmark]: Witness Printer took 5.33 ms. Allocated memory is still 408.9 MB. Free memory is still 305.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:57:06,096 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 83.9 MB. Free memory was 54.2 MB in the beginning and 54.2 MB in the end (delta: 28.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 327.58 ms. Allocated memory was 83.9 MB in the beginning and 111.1 MB in the end (delta: 27.3 MB). Free memory was 52.4 MB in the beginning and 85.8 MB in the end (delta: -33.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.98 ms. Allocated memory is still 111.1 MB. Free memory was 85.8 MB in the beginning and 84.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.15 ms. Allocated memory is still 111.1 MB. Free memory was 84.1 MB in the beginning and 82.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 613.15 ms. Allocated memory is still 111.1 MB. Free memory was 82.8 MB in the beginning and 67.3 MB in the end (delta: 15.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 61606.41 ms. Allocated memory was 111.1 MB in the beginning and 408.9 MB in the end (delta: 297.8 MB). Free memory was 67.3 MB in the beginning and 305.0 MB in the end (delta: -237.7 MB). Peak memory consumption was 61.2 MB. Max. memory is 16.1 GB. * Witness Printer took 5.33 ms. Allocated memory is still 408.9 MB. Free memory is still 305.0 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 22 terminating modules (14 trivial, 5 deterministic, 3 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 + j and consists of 6 locations. One deterministic module has affine ranking function -1 * v + unknown-#length-unknown[v] + -4 * k and consists of 3 locations. One deterministic module has affine ranking function i and consists of 5 locations. One nondeterministic module has affine ranking function 4 * i + j and consists of 8 locations. One nondeterministic module has affine ranking function i and consists of 3 locations. One nondeterministic module has affine ranking function unknown-#length-unknown[v] + 16 * i and consists of 6 locations. 14 modules have a trivial ranking function, the largest among these consists of 21 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 61.5s and 23 iterations. TraceHistogramMax:6. Analysis of lassos took 53.5s. Construction of modules took 2.3s. Büchi inclusion checks took 5.3s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 17. Automata minimization 0.0s AutomataMinimizationTime, 21 MinimizatonAttempts, 210 StatesRemovedByMinimization, 17 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 102 states and ocurred in iteration 15. Nontrivial modules had stage [5, 0, 3, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 483 SDtfs, 1122 SDslu, 884 SDs, 0 SdLazy, 1693 SolverSat, 241 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc6 concLT0 SILN0 SILU7 SILI0 SILT0 lasso8 LassoPreprocessingBenchmarks: Lassos: inital511 mio100 ax100 hnf99 lsp99 ukn42 mio100 lsp53 div185 bol100 ite100 ukn100 eq149 hnf62 smp87 dnf114 smp94 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 232ms 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...