./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/string-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/string-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 826ba3ecb74a591f4e23afc2c932e6d22d2291c8 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Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:24:12,588 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:24:12,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:24:12,691 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:24:12,692 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:24:12,698 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:24:12,702 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:24:12,710 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:24:12,713 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:24:12,720 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:24:12,722 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:24:12,724 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:24:12,724 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:24:12,728 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:24:12,730 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:24:12,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:24:12,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:24:12,736 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:24:12,744 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:24:12,752 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:24:12,755 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:24:12,757 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:24:12,759 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:24:12,761 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:24:12,773 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:24:12,774 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:24:12,774 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:24:12,777 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:24:12,778 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:24:12,782 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:24:12,782 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:24:12,784 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:24:12,786 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:24:12,788 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:24:12,791 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:24:12,792 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:24:12,793 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:24:12,793 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:24:12,793 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:24:12,794 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:24:12,795 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:24:12,799 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-12-01 15:24:12,850 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:24:12,850 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:24:12,852 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:24:12,853 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:24:12,853 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:24:12,853 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-12-01 15:24:12,853 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-12-01 15:24:12,854 INFO L138 SettingsManager]: * Use old map elimination=false [2020-12-01 15:24:12,854 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-12-01 15:24:12,854 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-12-01 15:24:12,855 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-12-01 15:24:12,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:24:12,856 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:24:12,857 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 15:24:12,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:24:12,857 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:24:12,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:24:12,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-12-01 15:24:12,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-12-01 15:24:12,858 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-12-01 15:24:12,858 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:24:12,859 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:24:12,859 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-12-01 15:24:12,859 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:24:12,859 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-12-01 15:24:12,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:24:12,860 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:24:12,860 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-12-01 15:24:12,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:24:12,861 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:24:12,861 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:24:12,862 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-12-01 15:24:12,863 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-12-01 15:24:12,863 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_3763f3ca-ea20-43fb-b626-449c918e3ced/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 826ba3ecb74a591f4e23afc2c932e6d22d2291c8 [2020-12-01 15:24:13,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:24:13,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:24:13,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:24:13,192 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:24:13,193 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:24:13,193 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/../../sv-benchmarks/c/loops/string-2.i [2020-12-01 15:24:13,284 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/data/cbd41adce/7e6d368b24914b9695afd8067699cf42/FLAG3c57c0b39 [2020-12-01 15:24:13,798 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:24:13,799 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/sv-benchmarks/c/loops/string-2.i [2020-12-01 15:24:13,805 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/data/cbd41adce/7e6d368b24914b9695afd8067699cf42/FLAG3c57c0b39 [2020-12-01 15:24:14,182 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/data/cbd41adce/7e6d368b24914b9695afd8067699cf42 [2020-12-01 15:24:14,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:24:14,186 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:24:14,192 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:24:14,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:24:14,196 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:24:14,198 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:24:14" (1/1) ... [2020-12-01 15:24:14,201 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3301f9fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:14, skipping insertion in model container [2020-12-01 15:24:14,201 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:24:14" (1/1) ... [2020-12-01 15:24:14,209 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:24:14,232 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:24:14,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:24:14,447 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:24:14,472 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:24:14,487 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:24:14,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:14 WrapperNode [2020-12-01 15:24:14,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:24:14,489 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:24:14,489 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:24:14,489 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:24:14,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:14" (1/1) ... [2020-12-01 15:24:14,507 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:14" (1/1) ... [2020-12-01 15:24:14,534 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:24:14,534 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:24:14,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:24:14,535 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:24:14,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:14" (1/1) ... [2020-12-01 15:24:14,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:14" (1/1) ... [2020-12-01 15:24:14,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:14" (1/1) ... [2020-12-01 15:24:14,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:14" (1/1) ... [2020-12-01 15:24:14,558 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:14" (1/1) ... [2020-12-01 15:24:14,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:14" (1/1) ... [2020-12-01 15:24:14,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:14" (1/1) ... [2020-12-01 15:24:14,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:24:14,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:24:14,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:24:14,571 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:24:14,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:14,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:24:14,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:24:14,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 15:24:14,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:24:14,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:24:14,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 15:24:14,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 15:24:14,968 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:24:14,969 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-12-01 15:24:14,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:24:14 BoogieIcfgContainer [2020-12-01 15:24:14,971 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:24:14,972 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-12-01 15:24:14,972 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-12-01 15:24:14,977 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-12-01 15:24:14,979 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:24:14,980 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 03:24:14" (1/3) ... [2020-12-01 15:24:14,981 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e4945e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:24:14, skipping insertion in model container [2020-12-01 15:24:14,982 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:24:14,982 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:24:14" (2/3) ... [2020-12-01 15:24:14,983 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e4945e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:24:14, skipping insertion in model container [2020-12-01 15:24:14,983 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:24:14,983 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:24:14" (3/3) ... [2020-12-01 15:24:14,985 INFO L389 chiAutomizerObserver]: Analyzing ICFG string-2.i [2020-12-01 15:24:15,073 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-12-01 15:24:15,073 INFO L360 BuchiCegarLoop]: Hoare is false [2020-12-01 15:24:15,073 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-12-01 15:24:15,074 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:24:15,074 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:24:15,074 INFO L364 BuchiCegarLoop]: Difference is false [2020-12-01 15:24:15,074 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:24:15,074 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-12-01 15:24:15,094 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states. [2020-12-01 15:24:15,117 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2020-12-01 15:24:15,118 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:24:15,118 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:24:15,132 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-12-01 15:24:15,132 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:24:15,133 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-12-01 15:24:15,133 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states. [2020-12-01 15:24:15,136 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2020-12-01 15:24:15,137 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:24:15,137 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:24:15,137 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-12-01 15:24:15,137 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:24:15,145 INFO L794 eck$LassoCheckResult]: Stem: 20#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 7#L-1true havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 21#L35-3true [2020-12-01 15:24:15,145 INFO L796 eck$LassoCheckResult]: Loop: 21#L35-3true assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 23#L35-2true main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 21#L35-3true [2020-12-01 15:24:15,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:15,152 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-12-01 15:24:15,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:15,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699048124] [2020-12-01 15:24:15,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:15,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:15,316 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:15,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:15,359 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:15,381 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:24:15,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:15,384 INFO L82 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2020-12-01 15:24:15,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:15,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80051745] [2020-12-01 15:24:15,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:15,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:15,394 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:15,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:15,401 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:15,404 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:24:15,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:15,406 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2020-12-01 15:24:15,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:15,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648069095] [2020-12-01 15:24:15,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:15,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:15,453 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:15,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:15,501 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:15,512 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:24:15,949 WARN L197 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2020-12-01 15:24:16,127 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-12-01 15:24:16,144 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:24:16,145 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:24:16,146 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:24:16,146 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:24:16,146 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:24:16,146 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:16,146 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:24:16,147 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:24:16,147 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-2.i_Iteration1_Lasso [2020-12-01 15:24:16,148 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:24:16,148 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:24:16,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:16,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:16,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:16,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:16,196 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:16,199 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:16,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:16,209 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:16,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:16,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:16,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:16,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:16,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:16,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:16,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:16,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:16,505 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 46 [2020-12-01 15:24:16,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:16,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:16,549 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:16,552 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:16,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:16,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:16,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:16,946 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:24:16,952 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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) [2020-12-01 15:24:16,975 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:16,978 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:16,978 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:16,979 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:16,979 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:16,979 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:16,983 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:16,983 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:16,994 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:17,039 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:17,041 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:17,042 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:17,042 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:17,042 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:17,042 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:17,045 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:17,046 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:17,058 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:17,085 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:17,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:17,088 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:17,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:17,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:17,088 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:17,090 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:17,090 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:17,110 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:17,133 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:17,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:17,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:17,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:17,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:17,142 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:17,142 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:17,170 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:24:17,215 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:17,217 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:17,217 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:17,217 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:17,218 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:17,218 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:17,219 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:17,219 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:17,231 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:17,266 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:17,268 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:17,268 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:17,268 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:17,268 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:17,268 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:17,271 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:17,271 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:17,286 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:17,308 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 [2020-12-01 15:24:17,310 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:17,311 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:17,311 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:17,311 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:17,314 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:17,315 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:17,338 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:24:17,372 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:17,374 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:17,375 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:17,375 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:17,375 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:17,375 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:17,376 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:17,376 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:17,396 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:17,419 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:17,420 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:17,420 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:17,420 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:17,420 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:17,423 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:17,424 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:17,456 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:24:17,503 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:17,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:17,505 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:17,505 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:17,505 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:17,505 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:17,506 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:17,506 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:17,530 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:17,570 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:17,572 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:17,572 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:17,573 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:17,573 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:17,576 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:17,576 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:17,591 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:17,623 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:17,624 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:17,624 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:17,624 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:17,625 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:17,625 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:17,627 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:17,627 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:17,642 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:17,666 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:17,670 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:17,670 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:17,670 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:17,670 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:17,670 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:17,671 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:17,671 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:17,673 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:17,697 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:17,698 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:17,698 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:17,699 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:17,699 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:17,699 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:17,700 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:17,700 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:17,702 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:17,726 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:17,728 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:17,728 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:17,728 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:17,728 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:17,728 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:17,729 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:17,729 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:17,754 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:24:17,799 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:17,801 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:17,802 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:17,802 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:17,802 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:17,807 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:17,807 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:17,830 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:24:17,869 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 [2020-12-01 15:24:17,871 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:17,871 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:17,872 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:17,872 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:17,875 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:17,875 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:17,887 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:17,911 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:17,912 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:17,912 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:17,912 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:17,913 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:17,915 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:17,915 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:17,927 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:17,950 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:17,951 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:17,952 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:17,952 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:17,952 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:17,954 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:17,954 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:17,982 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:18,007 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 [2020-12-01 15:24:18,009 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:18,009 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:18,009 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:18,009 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:18,010 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:18,010 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:18,011 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:18,027 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:18,064 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:18,065 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:18,065 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:18,066 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:18,066 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:18,068 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:18,068 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:18,085 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:18,106 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:18,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:18,108 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:18,108 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:18,108 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:18,114 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:18,114 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:18,132 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:24:18,155 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2020-12-01 15:24:18,155 INFO L444 ModelExtractionUtils]: 4 out of 16 variables were initially zero. Simplification set additionally 9 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:18,223 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:24:18,244 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 15:24:18,244 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:24:18,245 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_1) = -2*ULTIMATE.start_main_~i~0 + 9*v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_1 Supporting invariants [] [2020-12-01 15:24:18,346 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2020-12-01 15:24:18,355 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 15:24:18,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:18,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:24:18,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:24:18,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:24:18,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:24:18,453 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 15:24:18,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:24:18,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:24:18,523 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 [2020-12-01 15:24:18,524 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states. Second operand 3 states. [2020-12-01 15:24:18,594 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states.. Second operand 3 states. Result 54 states and 86 transitions. Complement of second has 8 states. [2020-12-01 15:24:18,595 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 [2020-12-01 15:24:18,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-12-01 15:24:18,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 43 transitions. [2020-12-01 15:24:18,599 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 2 letters. Loop has 2 letters. [2020-12-01 15:24:18,600 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:24:18,600 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 4 letters. Loop has 2 letters. [2020-12-01 15:24:18,600 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:24:18,600 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 2 letters. Loop has 4 letters. [2020-12-01 15:24:18,600 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:24:18,601 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 86 transitions. [2020-12-01 15:24:18,606 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-12-01 15:24:18,611 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 19 states and 28 transitions. [2020-12-01 15:24:18,612 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2020-12-01 15:24:18,612 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2020-12-01 15:24:18,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 28 transitions. [2020-12-01 15:24:18,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:24:18,614 INFO L692 BuchiCegarLoop]: Abstraction has 19 states and 28 transitions. [2020-12-01 15:24:18,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 28 transitions. [2020-12-01 15:24:18,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-12-01 15:24:18,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-12-01 15:24:18,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 28 transitions. [2020-12-01 15:24:18,640 INFO L715 BuchiCegarLoop]: Abstraction has 19 states and 28 transitions. [2020-12-01 15:24:18,640 INFO L595 BuchiCegarLoop]: Abstraction has 19 states and 28 transitions. [2020-12-01 15:24:18,640 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-12-01 15:24:18,640 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 28 transitions. [2020-12-01 15:24:18,642 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-12-01 15:24:18,642 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:24:18,642 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:24:18,643 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-12-01 15:24:18,643 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:24:18,643 INFO L794 eck$LassoCheckResult]: Stem: 178#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 175#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 176#L35-3 assume !(main_~i~0 < 5); 177#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 170#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 169#L39-3 [2020-12-01 15:24:18,644 INFO L796 eck$LassoCheckResult]: Loop: 169#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 168#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 169#L39-3 [2020-12-01 15:24:18,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:18,644 INFO L82 PathProgramCache]: Analyzing trace with hash 28696938, now seen corresponding path program 1 times [2020-12-01 15:24:18,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:18,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933512136] [2020-12-01 15:24:18,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:18,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:24:18,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:24:18,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933512136] [2020-12-01 15:24:18,696 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:24:18,696 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:24:18,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359961602] [2020-12-01 15:24:18,700 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 15:24:18,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:18,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1891, now seen corresponding path program 1 times [2020-12-01 15:24:18,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:18,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734429876] [2020-12-01 15:24:18,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:18,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:18,712 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:18,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:18,722 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:18,725 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:24:18,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:24:18,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:24:18,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:24:18,806 INFO L87 Difference]: Start difference. First operand 19 states and 28 transitions. cyclomatic complexity: 14 Second operand 3 states. [2020-12-01 15:24:18,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:24:18,866 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2020-12-01 15:24:18,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:24:18,869 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 30 transitions. [2020-12-01 15:24:18,872 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-12-01 15:24:18,874 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 24 states and 30 transitions. [2020-12-01 15:24:18,874 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2020-12-01 15:24:18,875 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2020-12-01 15:24:18,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 30 transitions. [2020-12-01 15:24:18,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:24:18,875 INFO L692 BuchiCegarLoop]: Abstraction has 24 states and 30 transitions. [2020-12-01 15:24:18,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 30 transitions. [2020-12-01 15:24:18,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 20. [2020-12-01 15:24:18,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-12-01 15:24:18,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2020-12-01 15:24:18,879 INFO L715 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2020-12-01 15:24:18,879 INFO L595 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2020-12-01 15:24:18,879 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-12-01 15:24:18,880 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 25 transitions. [2020-12-01 15:24:18,880 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-12-01 15:24:18,881 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:24:18,881 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:24:18,881 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:24:18,881 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:24:18,882 INFO L794 eck$LassoCheckResult]: Stem: 230#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 226#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 227#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 228#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 229#L35-3 assume !(main_~i~0 < 5); 225#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 217#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 218#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 219#L39-2 [2020-12-01 15:24:18,882 INFO L796 eck$LassoCheckResult]: Loop: 219#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 220#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 219#L39-2 [2020-12-01 15:24:18,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:18,886 INFO L82 PathProgramCache]: Analyzing trace with hash 265181045, now seen corresponding path program 1 times [2020-12-01 15:24:18,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:18,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475054679] [2020-12-01 15:24:18,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:18,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:24:18,968 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:24:18,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475054679] [2020-12-01 15:24:18,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592252143] [2020-12-01 15:24:18,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:24:19,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:24:19,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-01 15:24:19,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:24:19,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:24:19,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:24:19,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-12-01 15:24:19,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627135749] [2020-12-01 15:24:19,070 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 15:24:19,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:19,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1951, now seen corresponding path program 2 times [2020-12-01 15:24:19,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:19,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031744972] [2020-12-01 15:24:19,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:19,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:19,082 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:19,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:19,089 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:19,097 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:24:19,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:24:19,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:24:19,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:24:19,138 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. cyclomatic complexity: 10 Second operand 5 states. [2020-12-01 15:24:19,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:24:19,206 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2020-12-01 15:24:19,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:24:19,206 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 37 transitions. [2020-12-01 15:24:19,211 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-12-01 15:24:19,219 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 30 states and 37 transitions. [2020-12-01 15:24:19,219 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2020-12-01 15:24:19,219 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2020-12-01 15:24:19,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 37 transitions. [2020-12-01 15:24:19,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:24:19,220 INFO L692 BuchiCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-12-01 15:24:19,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 37 transitions. [2020-12-01 15:24:19,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2020-12-01 15:24:19,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-12-01 15:24:19,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2020-12-01 15:24:19,226 INFO L715 BuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2020-12-01 15:24:19,227 INFO L595 BuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2020-12-01 15:24:19,227 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-12-01 15:24:19,227 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 29 transitions. [2020-12-01 15:24:19,228 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-12-01 15:24:19,228 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:24:19,228 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:24:19,229 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2020-12-01 15:24:19,229 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:24:19,229 INFO L794 eck$LassoCheckResult]: Stem: 307#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 304#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 305#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 308#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 309#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 310#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 315#L35-3 assume !(main_~i~0 < 5); 306#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 296#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 297#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 298#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 299#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 314#L39-2 [2020-12-01 15:24:19,229 INFO L796 eck$LassoCheckResult]: Loop: 314#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 316#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 314#L39-2 [2020-12-01 15:24:19,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:19,230 INFO L82 PathProgramCache]: Analyzing trace with hash 780717205, now seen corresponding path program 1 times [2020-12-01 15:24:19,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:19,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125769240] [2020-12-01 15:24:19,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:19,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:24:19,305 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 15:24:19,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125769240] [2020-12-01 15:24:19,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536487347] [2020-12-01 15:24:19,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:24:19,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:24:19,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 15:24:19,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:24:19,410 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 15:24:19,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:24:19,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-12-01 15:24:19,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263723494] [2020-12-01 15:24:19,412 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 15:24:19,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:19,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1951, now seen corresponding path program 3 times [2020-12-01 15:24:19,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:19,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302720366] [2020-12-01 15:24:19,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:19,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:19,428 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:19,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:19,436 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:19,442 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:24:19,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:24:19,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 15:24:19,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:24:19,480 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. cyclomatic complexity: 10 Second operand 6 states. [2020-12-01 15:24:19,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:24:19,581 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2020-12-01 15:24:19,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:24:19,582 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 44 transitions. [2020-12-01 15:24:19,591 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-12-01 15:24:19,592 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 36 states and 44 transitions. [2020-12-01 15:24:19,592 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2020-12-01 15:24:19,592 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2020-12-01 15:24:19,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 44 transitions. [2020-12-01 15:24:19,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:24:19,592 INFO L692 BuchiCegarLoop]: Abstraction has 36 states and 44 transitions. [2020-12-01 15:24:19,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 44 transitions. [2020-12-01 15:24:19,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2020-12-01 15:24:19,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-12-01 15:24:19,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2020-12-01 15:24:19,598 INFO L715 BuchiCegarLoop]: Abstraction has 28 states and 33 transitions. [2020-12-01 15:24:19,598 INFO L595 BuchiCegarLoop]: Abstraction has 28 states and 33 transitions. [2020-12-01 15:24:19,598 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-12-01 15:24:19,598 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 33 transitions. [2020-12-01 15:24:19,600 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-12-01 15:24:19,600 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:24:19,601 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:24:19,602 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 3, 2, 1, 1, 1, 1, 1] [2020-12-01 15:24:19,603 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:24:19,603 INFO L794 eck$LassoCheckResult]: Stem: 409#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 406#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 407#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 410#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 411#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 412#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 420#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 417#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 416#L35-3 assume !(main_~i~0 < 5); 408#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 398#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 399#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 400#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 401#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 422#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 421#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 419#L39-2 [2020-12-01 15:24:19,603 INFO L796 eck$LassoCheckResult]: Loop: 419#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 418#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 419#L39-2 [2020-12-01 15:24:19,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:19,603 INFO L82 PathProgramCache]: Analyzing trace with hash 2111137973, now seen corresponding path program 2 times [2020-12-01 15:24:19,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:19,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383343063] [2020-12-01 15:24:19,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:19,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:24:19,655 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-01 15:24:19,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383343063] [2020-12-01 15:24:19,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924108417] [2020-12-01 15:24:19,656 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:19,731 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-01 15:24:19,731 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:24:19,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 15:24:19,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:24:19,766 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-01 15:24:19,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:24:19,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2020-12-01 15:24:19,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108542817] [2020-12-01 15:24:19,768 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 15:24:19,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:19,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1951, now seen corresponding path program 4 times [2020-12-01 15:24:19,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:19,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301034361] [2020-12-01 15:24:19,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:19,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:19,779 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:19,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:19,788 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:19,790 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:24:19,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:24:19,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-01 15:24:19,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:24:19,820 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. cyclomatic complexity: 10 Second operand 7 states. [2020-12-01 15:24:19,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:24:19,908 INFO L93 Difference]: Finished difference Result 42 states and 51 transitions. [2020-12-01 15:24:19,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:24:19,909 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 51 transitions. [2020-12-01 15:24:19,913 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-12-01 15:24:19,916 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 42 states and 51 transitions. [2020-12-01 15:24:19,916 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2020-12-01 15:24:19,917 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2020-12-01 15:24:19,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 51 transitions. [2020-12-01 15:24:19,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:24:19,918 INFO L692 BuchiCegarLoop]: Abstraction has 42 states and 51 transitions. [2020-12-01 15:24:19,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 51 transitions. [2020-12-01 15:24:19,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 32. [2020-12-01 15:24:19,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-12-01 15:24:19,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2020-12-01 15:24:19,924 INFO L715 BuchiCegarLoop]: Abstraction has 32 states and 37 transitions. [2020-12-01 15:24:19,924 INFO L595 BuchiCegarLoop]: Abstraction has 32 states and 37 transitions. [2020-12-01 15:24:19,924 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-12-01 15:24:19,925 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 37 transitions. [2020-12-01 15:24:19,926 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-12-01 15:24:19,926 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:24:19,926 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:24:19,927 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 4, 3, 1, 1, 1, 1, 1] [2020-12-01 15:24:19,928 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:24:19,928 INFO L794 eck$LassoCheckResult]: Stem: 534#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 531#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 532#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 535#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 536#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 537#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 547#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 546#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 545#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 542#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 541#L35-3 assume !(main_~i~0 < 5); 533#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 523#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 524#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 525#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 526#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 551#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 550#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 549#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 548#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 544#L39-2 [2020-12-01 15:24:19,928 INFO L796 eck$LassoCheckResult]: Loop: 544#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 543#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 544#L39-2 [2020-12-01 15:24:19,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:19,929 INFO L82 PathProgramCache]: Analyzing trace with hash 213314517, now seen corresponding path program 3 times [2020-12-01 15:24:19,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:19,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690963683] [2020-12-01 15:24:19,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:19,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:24:20,016 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-01 15:24:20,016 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690963683] [2020-12-01 15:24:20,016 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [154062153] [2020-12-01 15:24:20,017 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:24:20,079 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2020-12-01 15:24:20,080 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:24:20,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 15:24:20,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:24:20,157 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-01 15:24:20,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:24:20,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2020-12-01 15:24:20,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806958643] [2020-12-01 15:24:20,159 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 15:24:20,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:20,159 INFO L82 PathProgramCache]: Analyzing trace with hash 1951, now seen corresponding path program 5 times [2020-12-01 15:24:20,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:20,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946930364] [2020-12-01 15:24:20,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:20,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:20,165 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:20,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:20,179 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:20,185 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:24:20,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:24:20,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-01 15:24:20,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-01 15:24:20,219 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. cyclomatic complexity: 10 Second operand 8 states. [2020-12-01 15:24:20,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:24:20,326 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2020-12-01 15:24:20,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-01 15:24:20,326 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 56 transitions. [2020-12-01 15:24:20,329 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-12-01 15:24:20,331 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 46 states and 56 transitions. [2020-12-01 15:24:20,332 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2020-12-01 15:24:20,332 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2020-12-01 15:24:20,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 56 transitions. [2020-12-01 15:24:20,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:24:20,334 INFO L692 BuchiCegarLoop]: Abstraction has 46 states and 56 transitions. [2020-12-01 15:24:20,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 56 transitions. [2020-12-01 15:24:20,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 36. [2020-12-01 15:24:20,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-12-01 15:24:20,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2020-12-01 15:24:20,346 INFO L715 BuchiCegarLoop]: Abstraction has 36 states and 41 transitions. [2020-12-01 15:24:20,346 INFO L595 BuchiCegarLoop]: Abstraction has 36 states and 41 transitions. [2020-12-01 15:24:20,346 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-12-01 15:24:20,346 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 41 transitions. [2020-12-01 15:24:20,347 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-12-01 15:24:20,347 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:24:20,347 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:24:20,349 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 4, 1, 1, 1, 1, 1] [2020-12-01 15:24:20,350 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:24:20,350 INFO L794 eck$LassoCheckResult]: Stem: 680#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 677#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 678#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 681#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 682#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 683#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 699#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 697#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 695#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 693#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 691#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 688#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 687#L35-3 assume !(main_~i~0 < 5); 679#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 671#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 672#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 669#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 670#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 701#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 700#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 698#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 696#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 694#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 692#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 690#L39-2 [2020-12-01 15:24:20,350 INFO L796 eck$LassoCheckResult]: Loop: 690#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 689#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 690#L39-2 [2020-12-01 15:24:20,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:20,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1212159477, now seen corresponding path program 4 times [2020-12-01 15:24:20,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:20,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539303856] [2020-12-01 15:24:20,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:20,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:20,414 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:20,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:20,459 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:20,478 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:24:20,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:20,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1951, now seen corresponding path program 6 times [2020-12-01 15:24:20,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:20,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326433089] [2020-12-01 15:24:20,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:20,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:20,483 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:20,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:20,486 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:20,487 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:24:20,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:20,488 INFO L82 PathProgramCache]: Analyzing trace with hash 949121171, now seen corresponding path program 5 times [2020-12-01 15:24:20,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:20,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004929772] [2020-12-01 15:24:20,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:20,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:24:20,564 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-12-01 15:24:20,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004929772] [2020-12-01 15:24:20,565 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654628557] [2020-12-01 15:24:20,565 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:24:20,693 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2020-12-01 15:24:20,693 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:24:20,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-01 15:24:20,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:24:20,758 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-12-01 15:24:20,759 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:24:20,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2020-12-01 15:24:20,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858005768] [2020-12-01 15:24:20,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:24:20,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-01 15:24:20,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2020-12-01 15:24:20,790 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. cyclomatic complexity: 10 Second operand 8 states. [2020-12-01 15:24:20,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:24:20,921 INFO L93 Difference]: Finished difference Result 48 states and 57 transitions. [2020-12-01 15:24:20,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-01 15:24:20,922 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 57 transitions. [2020-12-01 15:24:20,925 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-12-01 15:24:20,928 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 48 states and 57 transitions. [2020-12-01 15:24:20,928 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2020-12-01 15:24:20,928 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 48 [2020-12-01 15:24:20,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 57 transitions. [2020-12-01 15:24:20,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:24:20,929 INFO L692 BuchiCegarLoop]: Abstraction has 48 states and 57 transitions. [2020-12-01 15:24:20,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 57 transitions. [2020-12-01 15:24:20,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 36. [2020-12-01 15:24:20,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-12-01 15:24:20,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2020-12-01 15:24:20,935 INFO L715 BuchiCegarLoop]: Abstraction has 36 states and 39 transitions. [2020-12-01 15:24:20,935 INFO L595 BuchiCegarLoop]: Abstraction has 36 states and 39 transitions. [2020-12-01 15:24:20,935 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-12-01 15:24:20,935 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 39 transitions. [2020-12-01 15:24:20,936 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2020-12-01 15:24:20,936 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:24:20,936 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:24:20,937 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:24:20,937 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:24:20,939 INFO L794 eck$LassoCheckResult]: Stem: 853#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 850#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 851#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 854#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 855#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 872#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 870#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 868#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 866#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 864#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 862#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 860#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 859#L35-3 assume !(main_~i~0 < 5); 852#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 842#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 843#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 844#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 845#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 874#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 873#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 871#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 869#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 867#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 865#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 863#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 861#L39-3 assume !(main_~i~0 < 5); 858#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 847#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 848#L44-3 [2020-12-01 15:24:20,939 INFO L796 eck$LassoCheckResult]: Loop: 848#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 849#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 848#L44-3 [2020-12-01 15:24:20,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:20,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1572377782, now seen corresponding path program 1 times [2020-12-01 15:24:20,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:20,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966852800] [2020-12-01 15:24:20,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:20,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:20,978 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:21,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:21,012 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:21,027 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:24:21,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:21,028 INFO L82 PathProgramCache]: Analyzing trace with hash 2406, now seen corresponding path program 1 times [2020-12-01 15:24:21,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:21,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687727016] [2020-12-01 15:24:21,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:21,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:21,035 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:21,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:21,037 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:21,043 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:24:21,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:21,047 INFO L82 PathProgramCache]: Analyzing trace with hash -773438245, now seen corresponding path program 1 times [2020-12-01 15:24:21,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:21,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482378321] [2020-12-01 15:24:21,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:21,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:21,076 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:21,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:21,104 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:21,112 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:24:27,139 WARN L197 SmtUtils]: Spent 5.98 s on a formula simplification. DAG size of input: 248 DAG size of output: 189 [2020-12-01 15:24:28,278 WARN L197 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 121 [2020-12-01 15:24:28,282 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:24:28,282 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:24:28,282 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:24:28,282 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:24:28,282 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:24:28,282 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:28,283 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:24:28,283 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:24:28,283 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-2.i_Iteration8_Lasso [2020-12-01 15:24:28,283 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:24:28,283 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:24:28,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:28,291 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:28,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:28,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:28,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:28,300 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:28,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:28,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:28,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:28,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:28,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:28,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:28,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:28,327 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:28,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:28,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:28,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:28,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:28,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:28,918 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2020-12-01 15:24:28,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:28,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:28,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:29,321 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:24:29,325 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:24:29,329 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:29,331 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:29,331 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:29,331 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:29,332 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:29,332 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:29,333 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:29,333 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:29,349 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:24:29,389 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:29,391 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:29,391 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:29,391 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:29,391 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:29,391 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:29,392 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:29,392 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:29,394 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:29,419 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:29,420 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:29,421 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:29,421 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:29,421 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:29,424 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:29,424 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:29,437 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:29,460 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 [2020-12-01 15:24:29,461 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:29,461 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:29,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:29,461 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:29,461 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:29,462 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:29,462 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:29,463 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:29,486 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:29,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:29,487 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:29,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:29,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:29,488 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:29,488 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:29,488 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:29,489 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:29,513 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:29,515 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:29,515 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:29,515 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:29,515 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:29,515 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:29,515 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:29,516 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:29,525 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:29,548 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:29,549 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:29,549 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:29,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:29,549 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:29,550 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:29,550 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:29,550 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:29,569 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:24:29,592 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:29,594 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:29,594 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:29,594 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:29,594 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:29,594 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:29,595 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:29,595 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:29,622 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:24:29,663 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:29,665 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:29,665 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:29,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:29,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:29,665 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:29,666 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:29,666 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:29,690 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:29,731 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 [2020-12-01 15:24:29,733 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:29,733 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:29,733 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:29,733 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:29,733 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:29,734 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:29,734 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:29,739 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:29,763 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 [2020-12-01 15:24:29,764 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:29,765 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:29,765 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:29,765 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:29,765 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:29,766 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:29,766 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:29,786 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:24:29,827 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:29,828 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:29,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:29,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:29,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:29,831 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:29,831 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:29,850 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:24:29,889 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:29,890 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:29,890 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:29,891 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:29,891 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:29,891 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:29,892 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:29,892 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:29,906 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:29,934 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:29,935 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:29,936 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:29,936 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:29,936 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:29,937 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:29,938 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:29,959 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:29,989 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:29,991 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:29,991 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:29,991 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:29,991 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:29,991 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:29,992 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:29,992 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:29,993 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:30,018 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:30,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:30,020 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:30,021 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:30,021 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:30,021 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:30,021 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:30,021 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:30,023 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:30,047 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:30,049 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:30,049 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:30,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:30,049 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:30,049 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:30,050 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:30,050 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:30,076 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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) [2020-12-01 15:24:30,119 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:30,121 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:30,121 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:30,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:30,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:30,121 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:30,122 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:30,122 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:30,142 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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) [2020-12-01 15:24:30,180 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 [2020-12-01 15:24:30,181 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:30,182 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:30,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:30,182 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:30,184 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:30,184 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:30,195 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:30,222 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:30,223 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:30,223 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:30,223 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:30,223 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:30,237 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:30,238 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:30,250 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:30,273 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:30,274 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:30,274 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:30,275 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:30,275 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:30,275 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:30,275 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:30,275 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:30,277 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:30,298 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:30,299 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:30,300 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:30,300 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:30,300 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:30,302 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:30,302 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:30,311 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:30,332 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 [2020-12-01 15:24:30,334 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:30,334 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:30,334 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:30,334 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:30,336 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:30,336 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:30,339 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:30,362 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:30,364 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:30,364 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:30,364 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:30,364 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:30,369 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:30,369 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:30,390 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:24:30,414 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2020-12-01 15:24:30,414 INFO L444 ModelExtractionUtils]: 4 out of 16 variables were initially zero. Simplification set additionally 8 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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) [2020-12-01 15:24:30,425 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:30,442 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 15:24:30,442 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:24:30,442 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~#string_A~0.offset, v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_2, ULTIMATE.start_main_~nc_A~0) = -1*ULTIMATE.start_main_~#string_A~0.offset + 1*v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_2 - 1*ULTIMATE.start_main_~nc_A~0 Supporting invariants [] [2020-12-01 15:24:30,500 INFO L297 tatePredicateManager]: 13 out of 13 supporting invariants were superfluous and have been removed [2020-12-01 15:24:30,502 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 15:24:30,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:30,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:24:30,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:24:30,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:24:30,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:24:30,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 15:24:30,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:24:30,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:24:30,647 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 [2020-12-01 15:24:30,647 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 39 transitions. cyclomatic complexity: 6 Second operand 3 states. [2020-12-01 15:24:30,674 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 39 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 44 states and 51 transitions. Complement of second has 4 states. [2020-12-01 15:24:30,676 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 [2020-12-01 15:24:30,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-12-01 15:24:30,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 23 transitions. [2020-12-01 15:24:30,676 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 28 letters. Loop has 2 letters. [2020-12-01 15:24:30,677 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:24:30,678 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 30 letters. Loop has 2 letters. [2020-12-01 15:24:30,678 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:24:30,678 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 28 letters. Loop has 4 letters. [2020-12-01 15:24:30,679 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:24:30,679 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 51 transitions. [2020-12-01 15:24:30,680 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-12-01 15:24:30,681 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 38 states and 42 transitions. [2020-12-01 15:24:30,681 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2020-12-01 15:24:30,681 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2020-12-01 15:24:30,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 42 transitions. [2020-12-01 15:24:30,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:24:30,682 INFO L692 BuchiCegarLoop]: Abstraction has 38 states and 42 transitions. [2020-12-01 15:24:30,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 42 transitions. [2020-12-01 15:24:30,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-12-01 15:24:30,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-12-01 15:24:30,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2020-12-01 15:24:30,686 INFO L715 BuchiCegarLoop]: Abstraction has 38 states and 42 transitions. [2020-12-01 15:24:30,686 INFO L595 BuchiCegarLoop]: Abstraction has 38 states and 42 transitions. [2020-12-01 15:24:30,686 INFO L427 BuchiCegarLoop]: ======== Iteration 9============ [2020-12-01 15:24:30,686 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 42 transitions. [2020-12-01 15:24:30,687 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-12-01 15:24:30,687 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:24:30,687 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:24:30,688 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:24:30,689 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:24:30,689 INFO L794 eck$LassoCheckResult]: Stem: 1097#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 1094#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 1095#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1098#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1099#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1118#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1117#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1116#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1114#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1112#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1110#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1108#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1106#L35-3 assume !(main_~i~0 < 5); 1096#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 1084#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 1085#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1086#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1087#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1115#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1113#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1111#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1109#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1107#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1105#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1104#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1103#L39-3 assume !(main_~i~0 < 5); 1102#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 1089#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 1090#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 1092#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 1088#L44-4 main_~nc_B~0 := 0; 1082#L48-3 [2020-12-01 15:24:30,689 INFO L796 eck$LassoCheckResult]: Loop: 1082#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 1081#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 1082#L48-3 [2020-12-01 15:24:30,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:30,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1793218173, now seen corresponding path program 1 times [2020-12-01 15:24:30,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:30,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951842777] [2020-12-01 15:24:30,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:30,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:30,719 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:30,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:30,741 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:30,752 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:24:30,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:30,754 INFO L82 PathProgramCache]: Analyzing trace with hash 2854, now seen corresponding path program 1 times [2020-12-01 15:24:30,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:30,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477355643] [2020-12-01 15:24:30,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:30,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:30,758 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:30,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:30,760 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:30,762 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:24:30,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:30,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1000780450, now seen corresponding path program 1 times [2020-12-01 15:24:30,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:30,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262534044] [2020-12-01 15:24:30,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:30,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:30,789 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:30,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:30,818 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:30,831 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:24:38,114 WARN L197 SmtUtils]: Spent 7.24 s on a formula simplification. DAG size of input: 259 DAG size of output: 197 [2020-12-01 15:24:38,693 WARN L197 SmtUtils]: Spent 497.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-12-01 15:24:38,696 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:24:38,696 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:24:38,696 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:24:38,696 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:24:38,696 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:24:38,696 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:38,696 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:24:38,696 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:24:38,696 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-2.i_Iteration9_Lasso [2020-12-01 15:24:38,696 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:24:38,696 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:24:38,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:38,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:38,706 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:38,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:38,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:38,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:38,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:38,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:38,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:38,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:38,727 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:38,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:38,732 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:39,112 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2020-12-01 15:24:39,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:39,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:39,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:39,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:39,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:39,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:39,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:39,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:39,509 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:24:39,510 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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) [2020-12-01 15:24:39,522 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:39,524 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:39,524 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:39,525 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:39,525 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:39,526 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:39,527 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:39,536 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:39,556 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:39,557 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:39,557 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:39,557 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:39,557 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:39,557 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:39,557 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:39,557 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:39,558 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:39,579 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:39,581 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:39,581 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:39,581 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:39,581 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:39,581 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:39,581 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:39,581 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:39,582 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:39,602 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:39,603 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:39,603 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:39,604 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:39,604 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:39,604 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:39,604 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:39,604 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:39,605 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:39,626 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:39,627 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:39,627 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:39,627 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:39,627 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:39,627 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:39,627 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:39,627 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:39,628 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:39,648 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 [2020-12-01 15:24:39,649 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:39,649 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:39,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:39,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:39,649 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:39,649 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:39,649 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:39,650 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:39,671 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:39,672 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:39,672 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:39,672 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:39,672 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:39,674 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:39,674 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:39,676 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:39,695 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:39,697 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:39,697 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:39,697 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:39,697 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:39,698 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:39,698 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:39,730 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:39,756 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 [2020-12-01 15:24:39,757 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:39,758 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:39,758 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:39,758 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:39,758 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:39,758 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:39,758 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:39,759 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:39,779 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:39,780 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:39,780 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:39,780 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:39,780 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:39,780 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:39,781 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:39,781 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:39,786 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:39,806 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 [2020-12-01 15:24:39,807 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:39,807 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:39,807 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:39,807 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:39,807 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:39,807 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:39,807 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:39,808 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:39,828 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:39,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:39,830 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:39,830 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:39,830 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:39,830 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:39,830 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:39,830 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:39,831 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:39,922 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:39,925 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:39,925 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:39,925 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:39,925 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:39,928 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:39,928 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:39,950 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:39,979 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:39,980 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:39,980 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:39,980 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:39,980 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:39,982 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:39,982 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:39,984 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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) [2020-12-01 15:24:40,003 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:40,005 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:40,005 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:40,005 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:40,005 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:40,006 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:40,006 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:40,009 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:40,030 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:40,031 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:40,031 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:40,031 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:40,031 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:40,032 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:40,032 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:40,058 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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) [2020-12-01 15:24:40,099 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:40,101 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:40,101 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:40,101 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:40,101 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:40,102 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:40,102 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:40,122 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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) [2020-12-01 15:24:40,157 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:40,158 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:40,158 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:40,158 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:40,158 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-12-01 15:24:40,159 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:40,160 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-12-01 15:24:40,160 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:40,170 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:40,197 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:40,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:40,199 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:40,199 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:40,199 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:40,200 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:40,200 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:40,203 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:40,223 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:40,224 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:40,224 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:40,224 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:40,224 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:40,225 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:40,225 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:40,227 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:40,247 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:40,248 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:40,248 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:40,248 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:40,248 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:40,250 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:40,250 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:40,254 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:40,273 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:40,274 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:40,275 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:40,275 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:40,275 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:40,275 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:40,275 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:40,275 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:40,276 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:40,295 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:40,296 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:40,297 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:40,297 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:40,297 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:40,297 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:40,297 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:40,297 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:40,302 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:40,321 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:40,323 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:40,323 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:40,323 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:40,323 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:40,324 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:40,324 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:40,331 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:40,351 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:40,352 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:40,352 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:40,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:40,352 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:40,354 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:40,354 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:40,357 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:40,377 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:40,378 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:40,378 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:40,378 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:40,378 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:40,378 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:40,379 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:40,379 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:40,394 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:40,414 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:40,415 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:40,415 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:40,415 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:40,415 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:40,418 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:40,418 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:40,422 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:40,444 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:40,445 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:40,445 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:40,446 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:40,446 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:40,447 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:40,447 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:40,463 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 83 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:24:40,497 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:40,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:40,498 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:40,498 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:40,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:40,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:40,499 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:40,499 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 83 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:40,502 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:40,522 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:40,523 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:40,523 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:40,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:40,523 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:40,528 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:40,528 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:40,537 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:24:40,565 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2020-12-01 15:24:40,566 INFO L444 ModelExtractionUtils]: 10 out of 22 variables were initially zero. Simplification set additionally 8 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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) [2020-12-01 15:24:40,572 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 85 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:40,587 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 15:24:40,588 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:24:40,588 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~nc_B~0, v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_3, ULTIMATE.start_main_~#string_B~0.offset) = -1*ULTIMATE.start_main_~nc_B~0 + 1*v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_3 - 1*ULTIMATE.start_main_~#string_B~0.offset Supporting invariants [] [2020-12-01 15:24:40,753 INFO L297 tatePredicateManager]: 26 out of 26 supporting invariants were superfluous and have been removed [2020-12-01 15:24:40,754 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 15:24:40,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:40,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:24:40,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:24:40,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:24:40,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:24:40,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 15:24:40,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:24:40,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:24:40,840 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 [2020-12-01 15:24:40,840 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 38 states and 42 transitions. cyclomatic complexity: 7 Second operand 3 states. [2020-12-01 15:24:40,855 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 38 states and 42 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 43 states and 50 transitions. Complement of second has 4 states. [2020-12-01 15:24:40,856 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 [2020-12-01 15:24:40,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-12-01 15:24:40,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 23 transitions. [2020-12-01 15:24:40,857 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 31 letters. Loop has 2 letters. [2020-12-01 15:24:40,857 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:24:40,857 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 33 letters. Loop has 2 letters. [2020-12-01 15:24:40,857 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:24:40,857 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 31 letters. Loop has 4 letters. [2020-12-01 15:24:40,858 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:24:40,858 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 50 transitions. [2020-12-01 15:24:40,858 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:24:40,859 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 40 states and 45 transitions. [2020-12-01 15:24:40,859 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2020-12-01 15:24:40,859 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2020-12-01 15:24:40,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 45 transitions. [2020-12-01 15:24:40,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:24:40,860 INFO L692 BuchiCegarLoop]: Abstraction has 40 states and 45 transitions. [2020-12-01 15:24:40,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 45 transitions. [2020-12-01 15:24:40,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-12-01 15:24:40,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-12-01 15:24:40,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2020-12-01 15:24:40,862 INFO L715 BuchiCegarLoop]: Abstraction has 40 states and 45 transitions. [2020-12-01 15:24:40,862 INFO L595 BuchiCegarLoop]: Abstraction has 40 states and 45 transitions. [2020-12-01 15:24:40,863 INFO L427 BuchiCegarLoop]: ======== Iteration 10============ [2020-12-01 15:24:40,863 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 45 transitions. [2020-12-01 15:24:40,863 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:24:40,863 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:24:40,863 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:24:40,864 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:24:40,865 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:24:40,865 INFO L794 eck$LassoCheckResult]: Stem: 1404#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 1401#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 1402#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1403#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1405#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1424#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1423#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1422#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1421#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1420#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1419#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1418#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1416#L35-3 assume !(main_~i~0 < 5); 1400#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 1389#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 1390#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1391#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1392#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1417#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1415#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1414#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1413#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1412#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1411#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1410#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1409#L39-3 assume !(main_~i~0 < 5); 1408#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 1395#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 1396#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 1398#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 1393#L44-4 main_~nc_B~0 := 0; 1394#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 1385#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 1386#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 1406#L57-2 [2020-12-01 15:24:40,865 INFO L796 eck$LassoCheckResult]: Loop: 1406#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 1407#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 1406#L57-2 [2020-12-01 15:24:40,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:40,866 INFO L82 PathProgramCache]: Analyzing trace with hash 959422888, now seen corresponding path program 1 times [2020-12-01 15:24:40,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:40,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239907613] [2020-12-01 15:24:40,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:40,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:40,881 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:40,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:40,896 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:40,904 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:24:40,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:40,905 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 1 times [2020-12-01 15:24:40,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:40,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664560778] [2020-12-01 15:24:40,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:40,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:40,908 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:40,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:40,911 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:40,912 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:24:40,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:40,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1412570677, now seen corresponding path program 1 times [2020-12-01 15:24:40,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:40,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356424209] [2020-12-01 15:24:40,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:40,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:24:40,950 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-12-01 15:24:40,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356424209] [2020-12-01 15:24:40,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:24:40,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-01 15:24:40,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306677139] [2020-12-01 15:24:41,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:24:41,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:24:41,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:24:41,016 INFO L87 Difference]: Start difference. First operand 40 states and 45 transitions. cyclomatic complexity: 8 Second operand 4 states. [2020-12-01 15:24:41,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:24:41,031 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2020-12-01 15:24:41,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:24:41,031 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 48 transitions. [2020-12-01 15:24:41,032 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:24:41,032 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 41 states and 45 transitions. [2020-12-01 15:24:41,032 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2020-12-01 15:24:41,033 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2020-12-01 15:24:41,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 45 transitions. [2020-12-01 15:24:41,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:24:41,033 INFO L692 BuchiCegarLoop]: Abstraction has 41 states and 45 transitions. [2020-12-01 15:24:41,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 45 transitions. [2020-12-01 15:24:41,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2020-12-01 15:24:41,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-12-01 15:24:41,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2020-12-01 15:24:41,035 INFO L715 BuchiCegarLoop]: Abstraction has 40 states and 44 transitions. [2020-12-01 15:24:41,035 INFO L595 BuchiCegarLoop]: Abstraction has 40 states and 44 transitions. [2020-12-01 15:24:41,035 INFO L427 BuchiCegarLoop]: ======== Iteration 11============ [2020-12-01 15:24:41,035 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 44 transitions. [2020-12-01 15:24:41,036 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:24:41,036 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:24:41,036 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:24:41,036 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:24:41,036 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:24:41,037 INFO L794 eck$LassoCheckResult]: Stem: 1496#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 1493#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 1494#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1497#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1498#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1516#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1514#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1512#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1510#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1508#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1506#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1504#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1502#L35-3 assume !(main_~i~0 < 5); 1495#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 1482#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 1483#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1484#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1485#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1517#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1515#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1513#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1511#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1509#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1507#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1505#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1503#L39-3 assume !(main_~i~0 < 5); 1501#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 1488#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 1489#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 1491#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 1486#L44-4 main_~nc_B~0 := 0; 1487#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 1480#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 1481#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 1478#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 1479#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 1499#L57-2 [2020-12-01 15:24:41,037 INFO L796 eck$LassoCheckResult]: Loop: 1499#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 1500#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 1499#L57-2 [2020-12-01 15:24:41,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:41,037 INFO L82 PathProgramCache]: Analyzing trace with hash -1412524189, now seen corresponding path program 1 times [2020-12-01 15:24:41,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:41,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754763742] [2020-12-01 15:24:41,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:41,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:41,059 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:41,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:41,079 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:41,085 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:24:41,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:41,086 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 2 times [2020-12-01 15:24:41,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:41,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176669575] [2020-12-01 15:24:41,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:41,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:41,089 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:41,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:41,092 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:41,093 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:24:41,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:41,094 INFO L82 PathProgramCache]: Analyzing trace with hash -226077498, now seen corresponding path program 1 times [2020-12-01 15:24:41,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:41,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447379254] [2020-12-01 15:24:41,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:41,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:24:41,136 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-12-01 15:24:41,136 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447379254] [2020-12-01 15:24:41,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:24:41,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-01 15:24:41,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123625814] [2020-12-01 15:24:41,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:24:41,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:24:41,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:24:41,197 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. cyclomatic complexity: 7 Second operand 4 states. [2020-12-01 15:24:41,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:24:41,210 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2020-12-01 15:24:41,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:24:41,211 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 53 transitions. [2020-12-01 15:24:41,211 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:24:41,212 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 41 states and 44 transitions. [2020-12-01 15:24:41,212 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2020-12-01 15:24:41,212 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2020-12-01 15:24:41,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 44 transitions. [2020-12-01 15:24:41,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:24:41,213 INFO L692 BuchiCegarLoop]: Abstraction has 41 states and 44 transitions. [2020-12-01 15:24:41,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 44 transitions. [2020-12-01 15:24:41,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2020-12-01 15:24:41,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-12-01 15:24:41,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2020-12-01 15:24:41,215 INFO L715 BuchiCegarLoop]: Abstraction has 40 states and 43 transitions. [2020-12-01 15:24:41,215 INFO L595 BuchiCegarLoop]: Abstraction has 40 states and 43 transitions. [2020-12-01 15:24:41,215 INFO L427 BuchiCegarLoop]: ======== Iteration 12============ [2020-12-01 15:24:41,215 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 43 transitions. [2020-12-01 15:24:41,216 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:24:41,216 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:24:41,216 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:24:41,217 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:24:41,217 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:24:41,217 INFO L794 eck$LassoCheckResult]: Stem: 1595#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 1592#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 1593#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1594#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1596#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1615#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1614#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1613#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1612#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1610#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1608#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1606#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1604#L35-3 assume !(main_~i~0 < 5); 1591#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 1580#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 1581#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1582#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1583#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1611#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1609#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1607#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1605#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1603#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1602#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1601#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1600#L39-3 assume !(main_~i~0 < 5); 1599#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 1586#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 1587#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 1588#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 1589#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 1590#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 1584#L44-4 main_~nc_B~0 := 0; 1585#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 1578#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 1579#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 1576#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 1577#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 1597#L57-2 [2020-12-01 15:24:41,217 INFO L796 eck$LassoCheckResult]: Loop: 1597#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 1598#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 1597#L57-2 [2020-12-01 15:24:41,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:41,218 INFO L82 PathProgramCache]: Analyzing trace with hash 489706120, now seen corresponding path program 1 times [2020-12-01 15:24:41,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:41,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660914618] [2020-12-01 15:24:41,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:41,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:41,241 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:41,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:41,261 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:41,266 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:24:41,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:41,267 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 3 times [2020-12-01 15:24:41,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:41,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081015262] [2020-12-01 15:24:41,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:41,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:41,270 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:41,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:41,272 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:41,273 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:24:41,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:41,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1838818645, now seen corresponding path program 1 times [2020-12-01 15:24:41,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:41,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726237206] [2020-12-01 15:24:41,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:41,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:41,291 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:41,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:41,309 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:41,314 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:24:48,648 WARN L197 SmtUtils]: Spent 7.25 s on a formula simplification. DAG size of input: 296 DAG size of output: 225 [2020-12-01 15:24:49,374 WARN L197 SmtUtils]: Spent 689.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-12-01 15:24:49,377 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:24:49,377 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:24:49,377 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:24:49,377 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:24:49,377 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:24:49,377 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:49,377 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:24:49,377 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:24:49,377 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-2.i_Iteration12_Lasso [2020-12-01 15:24:49,377 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:24:49,377 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:24:49,381 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:49,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:49,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:49,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:49,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:49,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:49,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:49,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:49,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:49,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:49,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:49,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:49,416 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:49,419 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:49,421 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:49,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:49,425 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:49,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:49,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:49,431 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:24:50,530 WARN L197 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 80 [2020-12-01 15:24:51,133 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:24:51,133 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:51,144 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:51,145 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:51,145 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:51,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:51,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:51,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:51,146 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:51,146 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:51,147 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:51,167 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:51,168 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:51,169 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:51,169 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:51,169 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:51,169 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:51,169 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:51,169 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:51,170 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:51,190 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:51,191 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:51,192 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:51,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:51,192 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:51,192 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:51,192 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:51,192 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:51,193 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:51,214 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:51,215 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:51,215 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:51,215 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:51,216 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:51,216 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:51,216 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:51,216 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:51,217 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:51,238 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:51,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:51,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:51,239 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:51,239 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:51,240 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:51,240 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:51,243 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 91 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 91 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:51,270 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:51,271 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:51,271 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:51,271 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:51,271 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:51,273 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:51,273 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:51,276 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:51,297 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:51,299 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:51,299 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:51,299 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:51,299 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:51,300 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:51,301 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:51,303 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:51,326 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:51,328 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:51,328 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:51,328 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:51,328 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:51,328 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:51,328 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:51,328 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:51,329 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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) [2020-12-01 15:24:51,372 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 94 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:51,374 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:51,374 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:51,374 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:51,374 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:51,376 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:51,377 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:51,379 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:51,402 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:51,404 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:51,404 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:51,404 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:51,404 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:51,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:51,404 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:51,404 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:51,405 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:51,431 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:51,432 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:51,432 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:51,433 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:51,433 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:51,433 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:51,433 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:51,433 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:51,434 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:51,456 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:51,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:51,458 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:51,458 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:51,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:51,458 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:51,458 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:51,458 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:51,459 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 98 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:24:51,481 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 98 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:51,482 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:51,482 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:51,483 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:51,483 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:51,483 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:51,483 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:51,483 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:51,484 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 99 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 99 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:51,504 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:51,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:51,505 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:51,505 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:51,506 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:51,506 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:51,506 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:51,506 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:51,507 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:51,527 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:51,528 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:51,528 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:51,529 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:51,529 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:51,529 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:51,529 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:51,529 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:51,530 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:51,550 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:51,551 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:51,551 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:51,551 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:51,551 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:51,551 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:51,552 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:51,552 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:51,553 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:51,572 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:51,573 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:51,573 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:51,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:51,574 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:51,574 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:51,574 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:51,574 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:51,582 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:51,602 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:51,603 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:51,603 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:51,603 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:51,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:51,603 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:51,604 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:51,604 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:51,614 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:51,633 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:51,634 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:51,635 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:51,635 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:51,635 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:51,635 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:51,635 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:51,635 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:51,636 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:51,656 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:51,657 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:51,657 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:51,657 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:51,657 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:51,658 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:51,658 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:51,661 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:51,681 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:51,682 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:51,682 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:51,682 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:51,682 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:51,682 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:51,682 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:51,682 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:51,683 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:51,703 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 [2020-12-01 15:24:51,704 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:51,704 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:51,705 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:51,705 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:51,706 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:51,706 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:51,708 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:51,732 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:51,738 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:51,738 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:51,738 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:51,738 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:51,748 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:51,748 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:51,763 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:51,782 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:51,784 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:51,784 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:51,784 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:51,784 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:51,785 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:51,785 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:51,788 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:51,808 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:51,809 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:51,810 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:51,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:51,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:51,810 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:51,810 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:51,811 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:51,814 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:51,835 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:51,836 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:51,836 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:51,836 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:51,836 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:51,837 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:51,837 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:51,847 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:51,873 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 [2020-12-01 15:24:51,874 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:51,874 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:51,874 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:51,874 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:51,875 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:51,875 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:51,878 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:51,898 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:51,899 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:51,899 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:51,899 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:51,899 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:51,899 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:51,899 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:51,899 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:51,900 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:51,922 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:51,923 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:51,924 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:51,924 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:51,924 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:51,924 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:51,924 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:51,924 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:51,925 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:51,949 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:51,950 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:51,950 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:51,950 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:51,950 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:51,951 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:51,951 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:51,954 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 116 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:24:51,975 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 116 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:24:51,977 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:51,977 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2020-12-01 15:24:51,977 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:51,977 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:51,988 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-12-01 15:24:51,988 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:51,995 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:52,015 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 [2020-12-01 15:24:52,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:52,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:52,016 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:52,016 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:52,017 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:52,017 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:52,019 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:52,038 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:52,039 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:52,039 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:52,040 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:52,040 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:52,041 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:52,042 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:52,045 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:52,065 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:52,066 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:52,066 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:52,066 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:52,066 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:52,067 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:52,067 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:52,069 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:52,089 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:52,090 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:52,090 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:52,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:52,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:52,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:52,090 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:52,090 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:52,091 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:52,111 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:52,112 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:52,112 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:52,112 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:52,112 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:52,115 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:52,115 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:52,134 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:52,154 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 [2020-12-01 15:24:52,155 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:52,155 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:24:52,155 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:52,155 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:52,155 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:52,155 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:24:52,155 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:24:52,156 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:52,177 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:24:52,178 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:52,178 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:52,178 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:52,178 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:52,179 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:52,179 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:52,181 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:52,201 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 [2020-12-01 15:24:52,203 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:24:52,203 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:24:52,203 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:24:52,203 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:24:52,209 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:24:52,210 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:24:52,223 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:24:52,256 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2020-12-01 15:24:52,257 INFO L444 ModelExtractionUtils]: 0 out of 31 variables were initially zero. Simplification set additionally 27 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:24:52,259 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:24:52,261 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 15:24:52,261 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:24:52,261 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~#string_A~0.offset, v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_4, ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~#string_A~0.offset + 1*v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_4 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-12-01 15:24:52,412 INFO L297 tatePredicateManager]: 38 out of 38 supporting invariants were superfluous and have been removed [2020-12-01 15:24:52,413 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 15:24:52,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:52,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:24:52,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:24:52,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:24:52,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:24:52,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 15:24:52,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:24:52,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:24:52,538 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 [2020-12-01 15:24:52,538 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 43 transitions. cyclomatic complexity: 6 Second operand 3 states. [2020-12-01 15:24:52,551 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 43 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 44 states and 49 transitions. Complement of second has 5 states. [2020-12-01 15:24:52,552 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 [2020-12-01 15:24:52,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-12-01 15:24:52,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 22 transitions. [2020-12-01 15:24:52,552 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 38 letters. Loop has 2 letters. [2020-12-01 15:24:52,553 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:24:52,553 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 40 letters. Loop has 2 letters. [2020-12-01 15:24:52,553 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:24:52,553 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 38 letters. Loop has 4 letters. [2020-12-01 15:24:52,554 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:24:52,554 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 49 transitions. [2020-12-01 15:24:52,555 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:24:52,555 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 44 states and 49 transitions. [2020-12-01 15:24:52,556 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2020-12-01 15:24:52,556 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2020-12-01 15:24:52,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 49 transitions. [2020-12-01 15:24:52,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:24:52,556 INFO L692 BuchiCegarLoop]: Abstraction has 44 states and 49 transitions. [2020-12-01 15:24:52,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states and 49 transitions. [2020-12-01 15:24:52,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-12-01 15:24:52,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-12-01 15:24:52,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2020-12-01 15:24:52,559 INFO L715 BuchiCegarLoop]: Abstraction has 44 states and 49 transitions. [2020-12-01 15:24:52,559 INFO L595 BuchiCegarLoop]: Abstraction has 44 states and 49 transitions. [2020-12-01 15:24:52,559 INFO L427 BuchiCegarLoop]: ======== Iteration 13============ [2020-12-01 15:24:52,560 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 44 states and 49 transitions. [2020-12-01 15:24:52,560 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:24:52,560 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:24:52,560 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:24:52,561 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:24:52,561 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:24:52,562 INFO L794 eck$LassoCheckResult]: Stem: 1971#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 1968#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 1969#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1974#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1972#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1973#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1996#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1995#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1994#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1993#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1992#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1991#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1990#L35-3 assume !(main_~i~0 < 5); 1970#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 1959#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 1960#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1957#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1958#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1989#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1988#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1987#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1986#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1985#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1984#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1983#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1982#L39-3 assume !(main_~i~0 < 5); 1981#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 1963#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 1964#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 1965#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 1966#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 1967#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 1961#L44-4 main_~nc_B~0 := 0; 1962#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 1955#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 1956#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 1953#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 1954#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 1975#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 1980#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 1976#L57-2 [2020-12-01 15:24:52,562 INFO L796 eck$LassoCheckResult]: Loop: 1976#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 1977#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 1976#L57-2 [2020-12-01 15:24:52,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:52,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1838818643, now seen corresponding path program 1 times [2020-12-01 15:24:52,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:52,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111425453] [2020-12-01 15:24:52,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:52,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:52,583 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:52,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:52,613 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:52,619 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:24:52,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:52,622 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 4 times [2020-12-01 15:24:52,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:52,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755736186] [2020-12-01 15:24:52,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:52,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:52,625 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:52,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:52,627 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:52,628 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:24:52,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:52,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1873154672, now seen corresponding path program 1 times [2020-12-01 15:24:52,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:52,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474008244] [2020-12-01 15:24:52,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:52,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:24:52,703 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-12-01 15:24:52,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474008244] [2020-12-01 15:24:52,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981652370] [2020-12-01 15:24:52,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 126 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 126 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:24:52,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:24:52,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 15:24:52,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:24:52,909 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-12-01 15:24:52,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:24:52,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2020-12-01 15:24:52,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780541527] [2020-12-01 15:24:52,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:24:52,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-01 15:24:52,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-12-01 15:24:52,974 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. cyclomatic complexity: 9 Second operand 9 states. [2020-12-01 15:24:53,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:24:53,054 INFO L93 Difference]: Finished difference Result 59 states and 65 transitions. [2020-12-01 15:24:53,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:24:53,055 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 65 transitions. [2020-12-01 15:24:53,055 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:24:53,056 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 47 states and 52 transitions. [2020-12-01 15:24:53,056 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2020-12-01 15:24:53,056 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2020-12-01 15:24:53,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 52 transitions. [2020-12-01 15:24:53,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:24:53,056 INFO L692 BuchiCegarLoop]: Abstraction has 47 states and 52 transitions. [2020-12-01 15:24:53,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 52 transitions. [2020-12-01 15:24:53,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46. [2020-12-01 15:24:53,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-12-01 15:24:53,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 51 transitions. [2020-12-01 15:24:53,059 INFO L715 BuchiCegarLoop]: Abstraction has 46 states and 51 transitions. [2020-12-01 15:24:53,059 INFO L595 BuchiCegarLoop]: Abstraction has 46 states and 51 transitions. [2020-12-01 15:24:53,059 INFO L427 BuchiCegarLoop]: ======== Iteration 14============ [2020-12-01 15:24:53,059 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46 states and 51 transitions. [2020-12-01 15:24:53,059 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:24:53,059 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:24:53,059 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:24:53,060 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:24:53,060 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:24:53,060 INFO L794 eck$LassoCheckResult]: Stem: 2213#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 2210#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 2211#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2214#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2216#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2240#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2239#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2238#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2237#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2236#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2235#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2234#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2233#L35-3 assume !(main_~i~0 < 5); 2212#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 2199#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 2200#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2201#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2202#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2232#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2231#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2229#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2228#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2227#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2226#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2225#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2224#L39-3 assume !(main_~i~0 < 5); 2223#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 2205#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 2206#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2207#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 2208#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2209#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 2230#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2215#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 2203#L44-4 main_~nc_B~0 := 0; 2204#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2197#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 2198#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2195#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 2196#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 2217#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 2222#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 2218#L57-2 [2020-12-01 15:24:53,060 INFO L796 eck$LassoCheckResult]: Loop: 2218#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 2219#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 2218#L57-2 [2020-12-01 15:24:53,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:53,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1199867054, now seen corresponding path program 2 times [2020-12-01 15:24:53,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:53,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577528518] [2020-12-01 15:24:53,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:53,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:24:53,130 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-12-01 15:24:53,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577528518] [2020-12-01 15:24:53,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611334105] [2020-12-01 15:24:53,131 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 127 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 127 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:24:53,206 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-01 15:24:53,206 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:24:53,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 15:24:53,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:24:53,302 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-12-01 15:24:53,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:24:53,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2020-12-01 15:24:53,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838200446] [2020-12-01 15:24:53,303 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 15:24:53,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:53,304 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 5 times [2020-12-01 15:24:53,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:53,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392954134] [2020-12-01 15:24:53,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:53,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:53,308 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:53,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:53,311 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:53,312 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:24:53,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:24:53,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-01 15:24:53,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-12-01 15:24:53,375 INFO L87 Difference]: Start difference. First operand 46 states and 51 transitions. cyclomatic complexity: 9 Second operand 10 states. [2020-12-01 15:24:53,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:24:53,440 INFO L93 Difference]: Finished difference Result 52 states and 57 transitions. [2020-12-01 15:24:53,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-01 15:24:53,441 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 57 transitions. [2020-12-01 15:24:53,441 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:24:53,442 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 50 states and 55 transitions. [2020-12-01 15:24:53,442 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2020-12-01 15:24:53,442 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2020-12-01 15:24:53,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 55 transitions. [2020-12-01 15:24:53,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:24:53,442 INFO L692 BuchiCegarLoop]: Abstraction has 50 states and 55 transitions. [2020-12-01 15:24:53,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states and 55 transitions. [2020-12-01 15:24:53,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2020-12-01 15:24:53,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-12-01 15:24:53,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2020-12-01 15:24:53,445 INFO L715 BuchiCegarLoop]: Abstraction has 48 states and 53 transitions. [2020-12-01 15:24:53,445 INFO L595 BuchiCegarLoop]: Abstraction has 48 states and 53 transitions. [2020-12-01 15:24:53,445 INFO L427 BuchiCegarLoop]: ======== Iteration 15============ [2020-12-01 15:24:53,445 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 53 transitions. [2020-12-01 15:24:53,445 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:24:53,446 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:24:53,446 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:24:53,446 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:24:53,446 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:24:53,447 INFO L794 eck$LassoCheckResult]: Stem: 2447#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 2444#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 2445#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2448#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2450#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2474#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2472#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2470#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2468#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2466#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2464#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2462#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2460#L35-3 assume !(main_~i~0 < 5); 2446#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 2433#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 2434#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2435#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2436#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2475#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2473#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2471#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2469#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2467#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2465#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2463#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2461#L39-3 assume !(main_~i~0 < 5); 2459#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 2439#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 2440#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2441#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 2442#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2443#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 2476#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2449#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 2437#L44-4 main_~nc_B~0 := 0; 2438#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2457#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 2458#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2431#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 2432#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2429#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 2430#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 2451#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 2456#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 2452#L57-2 [2020-12-01 15:24:53,447 INFO L796 eck$LassoCheckResult]: Loop: 2452#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 2453#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 2452#L57-2 [2020-12-01 15:24:53,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:53,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1976327923, now seen corresponding path program 3 times [2020-12-01 15:24:53,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:53,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156126817] [2020-12-01 15:24:53,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:53,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:53,467 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:53,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:53,486 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:53,496 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:24:53,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:53,496 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 6 times [2020-12-01 15:24:53,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:53,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613833148] [2020-12-01 15:24:53,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:53,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:53,501 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:53,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:53,506 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:53,507 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:24:53,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:24:53,508 INFO L82 PathProgramCache]: Analyzing trace with hash -875586576, now seen corresponding path program 2 times [2020-12-01 15:24:53,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:24:53,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953131712] [2020-12-01 15:24:53,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:24:53,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:53,555 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:53,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:24:53,590 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:24:53,596 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:25:00,765 WARN L197 SmtUtils]: Spent 7.09 s on a formula simplification. DAG size of input: 345 DAG size of output: 260 [2020-12-01 15:25:01,708 WARN L197 SmtUtils]: Spent 895.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-12-01 15:25:01,711 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:25:01,711 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:25:01,711 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:25:01,711 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:25:01,711 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:25:01,711 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:01,711 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:25:01,711 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:25:01,711 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-2.i_Iteration15_Lasso [2020-12-01 15:25:01,711 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:25:01,711 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:25:01,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:01,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:01,721 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:01,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:01,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:01,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:01,732 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:01,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:01,737 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:01,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:01,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:01,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:01,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:01,757 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:01,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:03,316 WARN L197 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 91 [2020-12-01 15:25:03,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:03,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:03,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:03,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:03,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:04,349 WARN L197 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-12-01 15:25:04,532 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:25:04,533 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:25:04,540 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:04,541 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:04,541 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:04,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:04,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:04,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:04,541 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:04,541 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:04,542 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:25:04,562 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 [2020-12-01 15:25:04,563 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:04,563 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:04,564 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:04,564 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:04,564 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:04,564 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:04,564 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:04,565 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:25:04,585 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:04,586 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:04,586 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:04,586 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:04,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:04,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:04,586 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:04,586 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:04,587 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:25:04,608 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:04,609 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:04,609 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:04,609 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:04,609 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:04,609 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:04,610 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:04,610 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:04,611 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:25:04,631 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:04,632 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:04,632 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:04,632 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:04,632 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:04,633 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:04,633 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:04,635 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:25:04,656 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:04,657 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:04,657 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:04,657 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:04,657 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:04,657 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:04,658 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:04,658 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:04,659 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:25:04,679 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:04,680 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:04,680 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:04,680 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:04,680 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:04,681 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:04,681 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:04,683 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:25:04,703 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 [2020-12-01 15:25:04,704 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:04,704 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:04,704 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:04,704 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:04,704 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:04,705 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:04,705 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:04,713 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:25:04,735 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:04,736 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:04,736 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:04,736 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:04,736 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:04,736 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:04,737 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:04,737 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:04,738 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:25:04,762 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:04,764 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:04,764 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:04,764 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:04,764 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:04,764 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:04,764 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:04,764 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:04,765 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:25:04,831 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:04,832 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:04,833 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:04,833 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:04,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:04,833 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:04,833 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:04,833 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:04,850 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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) [2020-12-01 15:25:04,891 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 [2020-12-01 15:25:04,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:04,892 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:04,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:04,892 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:04,893 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:04,893 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:04,893 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:04,899 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 139 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:25:04,919 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:04,920 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:04,920 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:04,920 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:04,921 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:04,922 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:04,922 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:04,932 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:25:04,953 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 [2020-12-01 15:25:04,954 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:04,954 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:04,954 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:04,955 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:04,955 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:04,955 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:04,955 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:04,958 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:25:04,978 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:04,979 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:04,980 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:04,980 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:04,980 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:04,980 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:04,980 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:04,980 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:04,981 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/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 [2020-12-01 15:25:05,001 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:05,002 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:05,002 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:05,002 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:05,003 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:05,004 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:05,004 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:05,006 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 144 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 144 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:05,027 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:05,028 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:05,028 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-12-01 15:25:05,028 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:05,028 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:05,029 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-12-01 15:25:05,029 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:05,032 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 145 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 145 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:05,053 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 [2020-12-01 15:25:05,054 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:05,054 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:05,054 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:05,054 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:05,055 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:05,055 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:05,058 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 146 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 146 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:05,082 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:05,083 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:05,083 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:05,083 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:05,084 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:05,084 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:05,085 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:05,087 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 147 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 147 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:05,108 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:05,109 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:05,109 INFO L203 nArgumentSynthesizer]: 12 stem disjuncts [2020-12-01 15:25:05,109 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:05,109 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:05,124 INFO L401 nArgumentSynthesizer]: We have 28 Motzkin's Theorem applications. [2020-12-01 15:25:05,124 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:05,166 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 148 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:25:05,207 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:05,208 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:05,209 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:05,209 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:05,209 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:05,209 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:05,209 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:05,210 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 148 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:05,225 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 149 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:25:05,258 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:05,260 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:05,260 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:05,260 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:05,260 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:05,260 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:05,261 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:05,261 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 149 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:05,270 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 150 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:25:05,303 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:05,305 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:05,305 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:05,305 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:05,305 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:05,305 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:05,306 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:05,306 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 150 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:05,315 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 151 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:25:05,348 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:05,350 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:05,350 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:05,350 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:05,350 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:05,351 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:05,352 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 151 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:05,362 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 152 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:25:05,394 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:05,396 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:05,397 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:05,397 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:05,397 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:05,407 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:05,407 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 152 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:05,428 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:25:05,492 INFO L443 ModelExtractionUtils]: Simplification made 20 calls to the SMT solver. [2020-12-01 15:25:05,492 INFO L444 ModelExtractionUtils]: 3 out of 31 variables were initially zero. Simplification set additionally 25 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 153 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:25:05,498 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 153 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:05,523 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 15:25:05,523 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:25:05,523 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 3 Supporting invariants [] [2020-12-01 15:25:05,916 INFO L297 tatePredicateManager]: 60 out of 62 supporting invariants were superfluous and have been removed [2020-12-01 15:25:05,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:25:05,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:25:05,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-01 15:25:05,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:25:06,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:25:06,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-01 15:25:06,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:25:06,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:25:06,180 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.5 stem predicates 2 loop predicates [2020-12-01 15:25:06,180 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 48 states and 53 transitions. cyclomatic complexity: 9 Second operand 7 states. [2020-12-01 15:25:06,309 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 48 states and 53 transitions. cyclomatic complexity: 9. Second operand 7 states. Result 70 states and 82 transitions. Complement of second has 10 states. [2020-12-01 15:25:06,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 5 stem states 1 non-accepting loop states 2 accepting loop states [2020-12-01 15:25:06,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-12-01 15:25:06,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 40 transitions. [2020-12-01 15:25:06,310 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 40 transitions. Stem has 44 letters. Loop has 2 letters. [2020-12-01 15:25:06,310 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:25:06,310 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 40 transitions. Stem has 46 letters. Loop has 2 letters. [2020-12-01 15:25:06,311 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:25:06,311 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 40 transitions. Stem has 44 letters. Loop has 4 letters. [2020-12-01 15:25:06,311 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:25:06,311 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 70 states and 82 transitions. [2020-12-01 15:25:06,312 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:25:06,313 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 70 states to 70 states and 82 transitions. [2020-12-01 15:25:06,313 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 47 [2020-12-01 15:25:06,313 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2020-12-01 15:25:06,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 70 states and 82 transitions. [2020-12-01 15:25:06,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:25:06,314 INFO L692 BuchiCegarLoop]: Abstraction has 70 states and 82 transitions. [2020-12-01 15:25:06,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states and 82 transitions. [2020-12-01 15:25:06,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 63. [2020-12-01 15:25:06,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-12-01 15:25:06,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 72 transitions. [2020-12-01 15:25:06,317 INFO L715 BuchiCegarLoop]: Abstraction has 63 states and 72 transitions. [2020-12-01 15:25:06,317 INFO L595 BuchiCegarLoop]: Abstraction has 63 states and 72 transitions. [2020-12-01 15:25:06,317 INFO L427 BuchiCegarLoop]: ======== Iteration 16============ [2020-12-01 15:25:06,318 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 63 states and 72 transitions. [2020-12-01 15:25:06,318 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:25:06,318 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:25:06,318 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:25:06,319 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:25:06,319 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:25:06,320 INFO L794 eck$LassoCheckResult]: Stem: 2994#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 2991#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 2992#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2995#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2998#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3024#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3022#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3020#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3018#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3016#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3014#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3012#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3010#L35-3 assume !(main_~i~0 < 5); 2993#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 2980#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 2981#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2982#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2983#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3025#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3023#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3021#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3019#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3017#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3015#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3013#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3011#L39-3 assume !(main_~i~0 < 5); 3009#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 2986#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 2987#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2988#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 2989#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2990#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 3029#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2996#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 2997#L44-4 main_~nc_B~0 := 0; 3005#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 3006#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 3007#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 3008#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 3030#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 3031#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 3038#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 3035#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 3034#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 2999#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 3004#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 3000#L57-2 [2020-12-01 15:25:06,320 INFO L796 eck$LassoCheckResult]: Loop: 3000#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 3001#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 3000#L57-2 [2020-12-01 15:25:06,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:25:06,320 INFO L82 PathProgramCache]: Analyzing trace with hash -875586574, now seen corresponding path program 4 times [2020-12-01 15:25:06,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:25:06,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137388533] [2020-12-01 15:25:06,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:25:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:25:06,360 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:25:06,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:25:06,381 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:25:06,387 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:25:06,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:25:06,388 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 7 times [2020-12-01 15:25:06,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:25:06,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929361308] [2020-12-01 15:25:06,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:25:06,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:25:06,391 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:25:06,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:25:06,393 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:25:06,394 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:25:06,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:25:06,395 INFO L82 PathProgramCache]: Analyzing trace with hash 374894997, now seen corresponding path program 3 times [2020-12-01 15:25:06,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:25:06,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048188702] [2020-12-01 15:25:06,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:25:06,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:25:06,518 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2020-12-01 15:25:06,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048188702] [2020-12-01 15:25:06,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117608277] [2020-12-01 15:25:06,518 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 154 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 154 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:25:06,585 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-12-01 15:25:06,585 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:25:06,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-01 15:25:06,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:25:06,730 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2020-12-01 15:25:06,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:25:06,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2020-12-01 15:25:06,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648497410] [2020-12-01 15:25:06,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:25:06,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-12-01 15:25:06,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2020-12-01 15:25:06,783 INFO L87 Difference]: Start difference. First operand 63 states and 72 transitions. cyclomatic complexity: 15 Second operand 14 states. [2020-12-01 15:25:07,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:25:07,166 INFO L93 Difference]: Finished difference Result 101 states and 114 transitions. [2020-12-01 15:25:07,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-01 15:25:07,167 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 101 states and 114 transitions. [2020-12-01 15:25:07,168 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:25:07,168 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 101 states to 54 states and 59 transitions. [2020-12-01 15:25:07,168 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2020-12-01 15:25:07,169 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2020-12-01 15:25:07,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 59 transitions. [2020-12-01 15:25:07,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:25:07,169 INFO L692 BuchiCegarLoop]: Abstraction has 54 states and 59 transitions. [2020-12-01 15:25:07,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 59 transitions. [2020-12-01 15:25:07,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2020-12-01 15:25:07,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-12-01 15:25:07,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 57 transitions. [2020-12-01 15:25:07,171 INFO L715 BuchiCegarLoop]: Abstraction has 52 states and 57 transitions. [2020-12-01 15:25:07,171 INFO L595 BuchiCegarLoop]: Abstraction has 52 states and 57 transitions. [2020-12-01 15:25:07,171 INFO L427 BuchiCegarLoop]: ======== Iteration 17============ [2020-12-01 15:25:07,171 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 57 transitions. [2020-12-01 15:25:07,172 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:25:07,172 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:25:07,172 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:25:07,175 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:25:07,177 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:25:07,177 INFO L794 eck$LassoCheckResult]: Stem: 3341#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 3337#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 3338#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3340#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3344#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3370#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3368#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3366#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3364#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3362#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3360#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3358#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3356#L35-3 assume !(main_~i~0 < 5); 3339#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 3326#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 3327#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3328#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3329#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3353#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3369#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3367#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3365#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3363#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3361#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3359#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3357#L39-3 assume !(main_~i~0 < 5); 3352#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 3332#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 3333#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 3334#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 3335#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 3336#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 3343#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 3372#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 3371#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 3342#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 3330#L44-4 main_~nc_B~0 := 0; 3331#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 3324#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 3325#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 3351#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 3373#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 3355#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 3354#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 3322#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 3323#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 3345#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 3350#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 3346#L57-2 [2020-12-01 15:25:07,179 INFO L796 eck$LassoCheckResult]: Loop: 3346#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 3347#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 3346#L57-2 [2020-12-01 15:25:07,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:25:07,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1312494829, now seen corresponding path program 5 times [2020-12-01 15:25:07,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:25:07,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887909299] [2020-12-01 15:25:07,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:25:07,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:25:07,228 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:25:07,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:25:07,251 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:25:07,257 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:25:07,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:25:07,258 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 8 times [2020-12-01 15:25:07,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:25:07,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858708313] [2020-12-01 15:25:07,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:25:07,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:25:07,262 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:25:07,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:25:07,263 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:25:07,266 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:25:07,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:25:07,266 INFO L82 PathProgramCache]: Analyzing trace with hash -1412851760, now seen corresponding path program 4 times [2020-12-01 15:25:07,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:25:07,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825454778] [2020-12-01 15:25:07,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:25:07,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:25:07,302 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:25:07,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:25:07,333 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:25:07,339 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:25:13,079 WARN L197 SmtUtils]: Spent 5.67 s on a formula simplification. DAG size of input: 369 DAG size of output: 278 [2020-12-01 15:25:13,678 WARN L197 SmtUtils]: Spent 541.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-12-01 15:25:13,681 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:25:13,681 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:25:13,681 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:25:13,681 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:25:13,682 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:25:13,682 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:13,682 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:25:13,682 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:25:13,682 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-2.i_Iteration17_Lasso [2020-12-01 15:25:13,682 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:25:13,682 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:25:13,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:13,698 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:13,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:13,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:13,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:13,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:13,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:13,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:13,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:13,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:13,728 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:13,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:13,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:13,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:15,046 WARN L197 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 101 [2020-12-01 15:25:15,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:15,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:15,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:15,271 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:15,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:15,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:16,341 WARN L197 SmtUtils]: Spent 702.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-12-01 15:25:16,502 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:25:16,503 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 155 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:25:16,508 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:16,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:16,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:16,510 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:16,511 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 155 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:16,512 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:16,512 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:16,514 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 156 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 156 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:16,533 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:16,534 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:16,535 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:16,535 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:16,535 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:16,535 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:16,535 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:16,535 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:16,536 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 157 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 157 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:16,555 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:16,556 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:16,556 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:16,556 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:16,556 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:16,557 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:16,557 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:16,566 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 158 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 158 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:16,587 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:16,588 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:16,588 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:16,588 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:16,589 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:16,589 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:16,589 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:16,589 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:16,590 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 159 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 159 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:16,617 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:16,618 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:16,618 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:16,618 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:16,618 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:16,618 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:16,619 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:16,619 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:16,620 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 160 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 160 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:16,639 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:16,640 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:16,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:16,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:16,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:16,642 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:16,642 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:16,644 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 161 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 161 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:16,664 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:16,665 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:16,665 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:16,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:16,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:16,665 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:16,665 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:16,665 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:16,666 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 162 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 162 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:16,686 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:16,688 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:16,688 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:16,688 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:16,688 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:16,688 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:16,688 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:16,688 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:16,689 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 163 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 163 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:16,709 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:16,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:16,710 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:16,710 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:16,710 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:16,710 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:16,710 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:16,710 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:16,711 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 164 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 164 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:16,732 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:16,733 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:16,733 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:16,733 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:16,733 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:16,734 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:16,734 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:16,734 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:16,735 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 165 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 165 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:16,754 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:16,755 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:16,755 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:16,755 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:16,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:16,755 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:16,756 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:16,756 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:16,757 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 166 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 166 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:16,777 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:16,778 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:16,778 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:16,778 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:16,778 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:16,778 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:16,779 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:16,779 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:16,780 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 167 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 167 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:16,799 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:16,800 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:16,800 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:16,800 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:16,800 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:16,800 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:16,801 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:16,801 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:16,802 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 168 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 168 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:16,821 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 [2020-12-01 15:25:16,822 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:16,822 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:16,822 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:16,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:16,823 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:16,823 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:16,823 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:16,824 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 169 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 169 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:16,844 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:16,845 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:16,845 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:16,845 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:16,845 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:16,845 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:16,845 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:16,845 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:16,846 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 170 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 170 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:16,866 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:16,867 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:16,867 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:16,867 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:16,867 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:16,868 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:16,868 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:16,870 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 171 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 171 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:16,889 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:16,890 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:16,890 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:16,890 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:16,890 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:16,892 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:16,892 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:16,895 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 172 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 172 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:16,914 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:16,915 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:16,915 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:16,915 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:16,916 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:16,917 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:16,917 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:16,919 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 173 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 173 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:16,940 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:16,941 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:16,941 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:16,942 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:16,942 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:16,942 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:16,942 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:16,942 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:16,943 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 174 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 174 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:16,963 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:16,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:16,964 INFO L203 nArgumentSynthesizer]: 12 stem disjuncts [2020-12-01 15:25:16,964 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:16,965 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:17,005 INFO L401 nArgumentSynthesizer]: We have 28 Motzkin's Theorem applications. [2020-12-01 15:25:17,005 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:17,042 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 175 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 175 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:17,062 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:17,063 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:17,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:17,063 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:17,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:17,065 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:17,065 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:17,070 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 176 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 176 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:17,089 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:17,090 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:17,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:17,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:17,091 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:17,092 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:17,092 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:17,101 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 177 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 177 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:17,120 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:17,121 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:17,122 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:17,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:17,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:17,123 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:17,123 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:17,125 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 178 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 178 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:17,145 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:17,146 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:17,146 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:17,146 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:17,146 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:17,147 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:17,148 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:17,150 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 179 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 179 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:17,170 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:17,171 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:17,171 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:17,171 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:17,171 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:17,172 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:17,172 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:17,174 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 180 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 180 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:17,194 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:17,195 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:17,195 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:17,195 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:17,195 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:17,197 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:17,197 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:17,201 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 181 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 181 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:17,220 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:17,221 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:17,221 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-12-01 15:25:17,222 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:17,222 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:17,223 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-12-01 15:25:17,223 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:17,225 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 182 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 182 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:17,244 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:17,245 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:17,246 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:17,246 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:17,246 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:17,247 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:17,247 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:17,258 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 183 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 183 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:17,281 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 [2020-12-01 15:25:17,282 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:17,282 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-12-01 15:25:17,282 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:17,282 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:17,283 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-12-01 15:25:17,283 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:17,286 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 184 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 184 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:17,305 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 [2020-12-01 15:25:17,306 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:17,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:17,306 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:17,306 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:17,307 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:17,307 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:17,316 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 185 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 185 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:17,339 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:17,340 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:17,340 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:17,341 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:17,341 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:17,348 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:17,348 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:17,363 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:25:17,403 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2020-12-01 15:25:17,403 INFO L444 ModelExtractionUtils]: 10 out of 31 variables were initially zero. Simplification set additionally 18 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 186 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 186 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:17,405 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:25:17,407 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 15:25:17,407 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:25:17,407 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_6) = -2*ULTIMATE.start_main_~j~0 + 3*v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_6 Supporting invariants [] [2020-12-01 15:25:17,878 INFO L297 tatePredicateManager]: 77 out of 81 supporting invariants were superfluous and have been removed [2020-12-01 15:25:17,891 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 15:25:17,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:25:17,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:25:17,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 25 conjunts are in the unsatisfiable core [2020-12-01 15:25:17,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:25:18,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:25:18,385 WARN L261 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-01 15:25:18,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:25:18,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:25:18,437 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.11 stem predicates 2 loop predicates [2020-12-01 15:25:18,438 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 57 transitions. cyclomatic complexity: 9 Second operand 13 states. [2020-12-01 15:25:18,788 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 57 transitions. cyclomatic complexity: 9. Second operand 13 states. Result 85 states and 100 transitions. Complement of second has 16 states. [2020-12-01 15:25:18,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 14 states 11 stem states 1 non-accepting loop states 2 accepting loop states [2020-12-01 15:25:18,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-12-01 15:25:18,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 55 transitions. [2020-12-01 15:25:18,790 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 55 transitions. Stem has 48 letters. Loop has 2 letters. [2020-12-01 15:25:18,790 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:25:18,790 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 55 transitions. Stem has 50 letters. Loop has 2 letters. [2020-12-01 15:25:18,790 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:25:18,790 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 55 transitions. Stem has 48 letters. Loop has 4 letters. [2020-12-01 15:25:18,791 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:25:18,791 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 85 states and 100 transitions. [2020-12-01 15:25:18,792 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:25:18,793 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 85 states to 85 states and 100 transitions. [2020-12-01 15:25:18,793 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 51 [2020-12-01 15:25:18,793 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2020-12-01 15:25:18,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 85 states and 100 transitions. [2020-12-01 15:25:18,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:25:18,794 INFO L692 BuchiCegarLoop]: Abstraction has 85 states and 100 transitions. [2020-12-01 15:25:18,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states and 100 transitions. [2020-12-01 15:25:18,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 69. [2020-12-01 15:25:18,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-12-01 15:25:18,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 78 transitions. [2020-12-01 15:25:18,797 INFO L715 BuchiCegarLoop]: Abstraction has 69 states and 78 transitions. [2020-12-01 15:25:18,797 INFO L595 BuchiCegarLoop]: Abstraction has 69 states and 78 transitions. [2020-12-01 15:25:18,797 INFO L427 BuchiCegarLoop]: ======== Iteration 18============ [2020-12-01 15:25:18,797 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states and 78 transitions. [2020-12-01 15:25:18,798 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:25:18,798 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:25:18,798 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:25:18,799 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:25:18,799 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:25:18,799 INFO L794 eck$LassoCheckResult]: Stem: 4012#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 4009#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 4010#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4013#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4017#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4044#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4042#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4040#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4038#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4036#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4034#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4032#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4030#L35-3 assume !(main_~i~0 < 5); 4011#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 3998#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 3999#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4000#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4001#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4045#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4043#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4041#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4039#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4037#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4035#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4033#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4031#L39-3 assume !(main_~i~0 < 5); 4028#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 4004#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 4005#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4006#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 4016#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4052#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 4007#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4008#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 4046#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4048#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 4002#L44-4 main_~nc_B~0 := 0; 4003#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 3996#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 3997#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 4054#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 4055#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 4062#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 4061#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 4051#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 4050#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 3994#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 3995#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 4018#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 4023#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 4019#L57-2 [2020-12-01 15:25:18,799 INFO L796 eck$LassoCheckResult]: Loop: 4019#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 4020#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 4019#L57-2 [2020-12-01 15:25:18,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:25:18,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1368178712, now seen corresponding path program 6 times [2020-12-01 15:25:18,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:25:18,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160108966] [2020-12-01 15:25:18,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:25:18,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:25:18,837 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:25:18,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:25:18,869 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:25:18,879 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:25:18,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:25:18,879 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 9 times [2020-12-01 15:25:18,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:25:18,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961214345] [2020-12-01 15:25:18,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:25:18,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:25:18,882 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:25:18,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:25:18,895 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:25:18,896 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:25:18,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:25:18,898 INFO L82 PathProgramCache]: Analyzing trace with hash -559747061, now seen corresponding path program 5 times [2020-12-01 15:25:18,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:25:18,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826451239] [2020-12-01 15:25:18,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:25:18,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:25:18,948 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:25:18,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:25:18,978 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:25:18,984 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:25:26,463 WARN L197 SmtUtils]: Spent 7.40 s on a formula simplification. DAG size of input: 381 DAG size of output: 283 [2020-12-01 15:25:27,212 WARN L197 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-12-01 15:25:27,215 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:25:27,215 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:25:27,215 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:25:27,215 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:25:27,215 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:25:27,215 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:27,215 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:25:27,216 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:25:27,216 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-2.i_Iteration18_Lasso [2020-12-01 15:25:27,216 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:25:27,216 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:25:27,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:27,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:27,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:27,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:27,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:27,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:27,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:27,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:27,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:27,265 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:27,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:27,271 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:27,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:27,277 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:27,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:27,282 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:27,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:27,288 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:28,408 WARN L197 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 92 [2020-12-01 15:25:28,585 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 48 [2020-12-01 15:25:28,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:28,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:29,526 WARN L197 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2020-12-01 15:25:29,560 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:25:29,561 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 187 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 187 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:29,565 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:29,566 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:29,567 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:29,567 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:29,567 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:29,568 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:29,568 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:29,570 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 188 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 188 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:29,589 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 [2020-12-01 15:25:29,590 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:29,590 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:29,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:29,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:29,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:29,590 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:29,590 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:29,591 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 189 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 189 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:29,610 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:29,611 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:29,611 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:29,611 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:29,611 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:29,611 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:29,611 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:29,611 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:29,612 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 190 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 190 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:29,636 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:29,637 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:29,637 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:29,637 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:29,637 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:29,638 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:29,638 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:29,642 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 191 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 191 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:29,672 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 [2020-12-01 15:25:29,673 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:29,673 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:29,673 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:29,673 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:29,673 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:29,673 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:29,673 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:29,674 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 192 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 192 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:29,695 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:29,696 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:29,696 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:29,696 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:29,696 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:29,696 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:29,697 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:29,697 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:29,698 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 193 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 193 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:29,717 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:29,718 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:29,718 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:29,718 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:29,718 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:29,718 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:29,719 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:29,719 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:29,720 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 194 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 194 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:29,739 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:29,740 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:29,740 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:29,740 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:29,740 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:29,741 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:29,741 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:29,744 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 195 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 195 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:29,763 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 [2020-12-01 15:25:29,764 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:29,764 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:29,764 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:29,764 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:29,765 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:29,765 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:29,765 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:29,770 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 196 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 196 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:29,790 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 [2020-12-01 15:25:29,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:29,791 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:29,791 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:29,791 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:29,792 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:29,792 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:29,792 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:29,800 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 197 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 197 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:29,820 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:29,822 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:29,822 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:29,822 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:29,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:29,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:29,822 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:29,822 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:29,823 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 198 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 198 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:29,844 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:29,845 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:29,845 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:29,845 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:29,845 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:29,845 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:29,845 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:29,846 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:29,846 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 199 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 199 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:29,867 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:29,868 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:29,868 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:29,868 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:29,868 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:29,868 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:29,868 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:29,868 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:29,869 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 200 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 200 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:29,890 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:29,891 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:29,891 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:29,891 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:29,891 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:29,891 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:29,891 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:29,891 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:29,914 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 201 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 201 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:29,939 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:29,940 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:29,940 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:29,940 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:29,941 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:29,941 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:29,941 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:29,941 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:29,942 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 202 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 202 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:29,963 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:29,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:29,964 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:29,964 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:29,964 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:29,965 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:29,965 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:29,967 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 203 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 203 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:29,988 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 [2020-12-01 15:25:29,989 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:29,989 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:29,989 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:29,989 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:29,989 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:29,989 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:29,989 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:29,990 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 204 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 204 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:30,010 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:30,012 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:30,012 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:30,012 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:30,012 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:30,021 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:30,022 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:30,039 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:25:30,088 INFO L443 ModelExtractionUtils]: Simplification made 25 calls to the SMT solver. [2020-12-01 15:25:30,088 INFO L444 ModelExtractionUtils]: 1 out of 31 variables were initially zero. Simplification set additionally 27 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 205 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:25:30,096 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 205 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:30,126 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 15:25:30,126 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:25:30,126 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~nc_B~0, ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~nc_B~0 - 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2020-12-01 15:25:30,416 INFO L297 tatePredicateManager]: 66 out of 66 supporting invariants were superfluous and have been removed [2020-12-01 15:25:30,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:25:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:25:30,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:25:30,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:25:30,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:25:30,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 15:25:30,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:25:30,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:25:30,532 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 [2020-12-01 15:25:30,532 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 69 states and 78 transitions. cyclomatic complexity: 14 Second operand 3 states. [2020-12-01 15:25:30,563 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 69 states and 78 transitions. cyclomatic complexity: 14. Second operand 3 states. Result 79 states and 94 transitions. Complement of second has 5 states. [2020-12-01 15:25:30,563 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 [2020-12-01 15:25:30,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-12-01 15:25:30,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2020-12-01 15:25:30,564 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 25 transitions. Stem has 50 letters. Loop has 2 letters. [2020-12-01 15:25:30,564 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:25:30,564 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 25 transitions. Stem has 52 letters. Loop has 2 letters. [2020-12-01 15:25:30,564 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:25:30,564 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 25 transitions. Stem has 50 letters. Loop has 4 letters. [2020-12-01 15:25:30,564 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:25:30,565 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 79 states and 94 transitions. [2020-12-01 15:25:30,566 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:25:30,566 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 79 states to 77 states and 90 transitions. [2020-12-01 15:25:30,567 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 47 [2020-12-01 15:25:30,567 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2020-12-01 15:25:30,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77 states and 90 transitions. [2020-12-01 15:25:30,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:25:30,567 INFO L692 BuchiCegarLoop]: Abstraction has 77 states and 90 transitions. [2020-12-01 15:25:30,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states and 90 transitions. [2020-12-01 15:25:30,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 56. [2020-12-01 15:25:30,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-12-01 15:25:30,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 63 transitions. [2020-12-01 15:25:30,570 INFO L715 BuchiCegarLoop]: Abstraction has 56 states and 63 transitions. [2020-12-01 15:25:30,570 INFO L595 BuchiCegarLoop]: Abstraction has 56 states and 63 transitions. [2020-12-01 15:25:30,570 INFO L427 BuchiCegarLoop]: ======== Iteration 19============ [2020-12-01 15:25:30,570 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 63 transitions. [2020-12-01 15:25:30,571 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:25:30,571 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:25:30,571 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:25:30,572 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:25:30,572 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:25:30,572 INFO L794 eck$LassoCheckResult]: Stem: 4601#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 4598#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 4599#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4602#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4605#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4629#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4627#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4625#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4623#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4621#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4619#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4617#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4615#L35-3 assume !(main_~i~0 < 5); 4600#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 4587#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 4588#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4589#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4590#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4630#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4628#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4626#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4624#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4622#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4620#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4618#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4616#L39-3 assume !(main_~i~0 < 5); 4613#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 4593#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 4594#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4595#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 4634#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4604#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 4596#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4597#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 4631#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4603#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 4591#L44-4 main_~nc_B~0 := 0; 4592#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 4585#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 4586#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 4612#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 4635#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 4633#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 4632#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 4583#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 4584#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 4606#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 4611#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 4614#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 4636#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 4607#L57-2 [2020-12-01 15:25:30,572 INFO L796 eck$LassoCheckResult]: Loop: 4607#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 4608#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 4607#L57-2 [2020-12-01 15:25:30,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:25:30,573 INFO L82 PathProgramCache]: Analyzing trace with hash -1412851758, now seen corresponding path program 7 times [2020-12-01 15:25:30,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:25:30,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711735894] [2020-12-01 15:25:30,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:25:30,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:25:30,597 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:25:30,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:25:30,623 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:25:30,629 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:25:30,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:25:30,630 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 10 times [2020-12-01 15:25:30,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:25:30,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555841312] [2020-12-01 15:25:30,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:25:30,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:25:30,633 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:25:30,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:25:30,635 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:25:30,636 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:25:30,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:25:30,637 INFO L82 PathProgramCache]: Analyzing trace with hash -540871307, now seen corresponding path program 6 times [2020-12-01 15:25:30,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:25:30,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740369648] [2020-12-01 15:25:30,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:25:30,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:25:30,657 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:25:30,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:25:30,677 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:25:30,683 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:25:38,772 WARN L197 SmtUtils]: Spent 8.01 s on a formula simplification. DAG size of input: 393 DAG size of output: 292 [2020-12-01 15:25:39,816 WARN L197 SmtUtils]: Spent 957.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-12-01 15:25:39,820 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:25:39,820 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:25:39,820 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:25:39,820 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:25:39,820 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:25:39,820 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:39,821 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:25:39,821 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:25:39,821 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-2.i_Iteration19_Lasso [2020-12-01 15:25:39,821 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:25:39,821 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:25:39,824 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:39,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:39,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:39,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:39,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:39,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:39,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:39,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:39,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:39,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:39,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:39,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:39,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:39,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:39,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:39,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:39,906 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:39,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:39,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:39,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:25:42,152 WARN L197 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 101 [2020-12-01 15:25:42,437 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2020-12-01 15:25:42,875 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2020-12-01 15:25:47,227 WARN L197 SmtUtils]: Spent 4.20 s on a formula simplification. DAG size of input: 109 DAG size of output: 81 [2020-12-01 15:25:47,422 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:25:47,422 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 206 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:25:47,447 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:47,449 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:47,449 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:47,449 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:47,449 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:47,449 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:47,450 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:47,450 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 206 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:47,466 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 207 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 207 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:47,490 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:47,492 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:47,492 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:47,492 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:47,492 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:47,492 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:47,492 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:47,492 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:47,494 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 208 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 208 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:47,517 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:47,518 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:47,518 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:47,519 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:47,519 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:47,519 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:47,519 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:47,519 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:47,520 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 209 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 209 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:47,544 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:47,546 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:47,546 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:47,546 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:47,546 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:47,548 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:47,548 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:47,559 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 210 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 210 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:47,583 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:47,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:47,584 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:47,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:47,585 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:47,585 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:47,585 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:47,585 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:47,586 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 211 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 211 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:47,610 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:47,611 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:47,611 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:47,612 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:47,612 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:47,613 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:47,613 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:47,616 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 212 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 212 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:47,642 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:47,644 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:47,644 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:47,644 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:47,644 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:47,644 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:47,645 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:47,645 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:47,646 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 213 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 213 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:47,670 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:47,671 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:47,671 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:47,671 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:47,671 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:47,671 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:47,672 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:47,672 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:47,673 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 214 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 214 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:47,697 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:47,699 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:47,699 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:47,699 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:47,699 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:47,699 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:47,699 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:47,699 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:47,700 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 215 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 215 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:47,724 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:47,725 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:47,725 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:47,725 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:47,725 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:47,725 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:47,726 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:47,726 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:47,727 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 216 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 216 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:47,750 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:47,751 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:47,751 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:47,752 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:47,752 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:47,752 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:47,752 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:47,752 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:47,754 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 217 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 217 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:47,778 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:47,779 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:47,779 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:47,779 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:47,779 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:47,779 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:47,780 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:47,780 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:47,781 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 218 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 218 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:47,805 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:47,806 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:47,806 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:47,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:47,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:47,806 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:47,807 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:47,807 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:47,808 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 219 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 219 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:47,831 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:47,832 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:47,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:47,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:47,833 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:47,834 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:47,834 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:47,837 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 220 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 220 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:47,860 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:47,861 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:47,861 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:47,862 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:47,862 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:47,862 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:47,862 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:47,862 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:47,878 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 221 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 221 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:47,917 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 [2020-12-01 15:25:47,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:47,918 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:47,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:47,919 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:47,919 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:47,919 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:47,919 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:47,920 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 222 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 222 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:47,944 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:47,946 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:47,946 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:47,946 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:47,946 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:47,946 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:47,947 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:47,947 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:47,951 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 223 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 223 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:47,972 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:47,975 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:47,975 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:47,975 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:47,975 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:47,976 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:47,976 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:47,976 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:47,978 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 224 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 224 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:47,998 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:47,999 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:47,999 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:47,999 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:47,999 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:48,000 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:48,000 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:48,002 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 225 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 225 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:48,023 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 [2020-12-01 15:25:48,024 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:48,024 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-12-01 15:25:48,024 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:48,024 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:48,025 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-12-01 15:25:48,025 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:48,028 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 226 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 226 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:48,049 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:48,050 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:48,050 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:48,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:48,050 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:48,051 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:48,051 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:48,054 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 227 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 227 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:48,082 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:48,084 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:48,084 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:48,084 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:48,084 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:48,084 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:48,085 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:48,085 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:48,086 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 228 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 228 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:48,108 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:48,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:48,110 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:48,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:48,110 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:48,112 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:48,112 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:48,119 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 229 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 229 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:48,142 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 [2020-12-01 15:25:48,144 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:48,144 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:48,144 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:48,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:48,146 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:48,146 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:48,149 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 230 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 230 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:48,182 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:48,183 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:48,183 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:48,184 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:48,184 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:48,184 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:48,184 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:48,184 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:25:48,185 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 231 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 231 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:48,209 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:48,210 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:48,211 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:48,211 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:48,211 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:48,212 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:48,212 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:48,214 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 232 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 232 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:48,238 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:48,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:48,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:48,239 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:48,239 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:48,240 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:48,241 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:48,244 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 233 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 233 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:48,267 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:48,269 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:48,269 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:48,269 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:48,269 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:48,270 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:48,270 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:48,273 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 234 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:25:48,297 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 234 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:48,298 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:48,298 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:48,299 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:48,299 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:48,300 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:48,300 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:48,307 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 235 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 235 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:48,330 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:48,332 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:48,333 INFO L203 nArgumentSynthesizer]: 36 stem disjuncts [2020-12-01 15:25:48,333 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:48,333 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:48,424 INFO L401 nArgumentSynthesizer]: We have 76 Motzkin's Theorem applications. [2020-12-01 15:25:48,425 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:25:48,570 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 236 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:25:48,615 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:48,617 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:48,617 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-12-01 15:25:48,617 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:48,617 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:48,619 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-12-01 15:25:48,619 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 236 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:48,642 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 237 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:25:48,681 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:48,682 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:48,683 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:48,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:48,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:48,684 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:48,685 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 237 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:48,706 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 238 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:25:48,749 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:48,751 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:48,751 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:25:48,751 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:48,751 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:48,751 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:48,752 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:25:48,752 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 238 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:48,770 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 239 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:25:48,810 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:48,812 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:48,812 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:48,812 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:48,812 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:48,814 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:48,814 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 239 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:48,826 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 240 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:25:48,865 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:48,867 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:48,867 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:48,867 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:48,867 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:48,868 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:48,869 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 240 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:48,886 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 241 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:25:48,927 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:48,929 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:48,929 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:48,929 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:48,930 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:48,932 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:48,933 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 241 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:48,946 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 242 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:25:48,984 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:48,986 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:48,986 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:48,986 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:48,986 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:48,988 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:48,988 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 242 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:49,022 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 243 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:25:49,061 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:49,063 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:49,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:49,063 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:49,063 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:49,065 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:49,065 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 243 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:49,082 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 244 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:25:49,121 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:25:49,123 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:25:49,124 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:25:49,124 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:25:49,124 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:25:49,135 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:25:49,135 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 244 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:49,171 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:25:49,245 INFO L443 ModelExtractionUtils]: Simplification made 22 calls to the SMT solver. [2020-12-01 15:25:49,245 INFO L444 ModelExtractionUtils]: 2 out of 31 variables were initially zero. Simplification set additionally 26 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 245 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:25:49,248 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 245 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:25:49,257 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 15:25:49,257 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:25:49,258 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 1 Supporting invariants [] [2020-12-01 15:25:49,809 INFO L297 tatePredicateManager]: 83 out of 87 supporting invariants were superfluous and have been removed [2020-12-01 15:25:49,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:25:49,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:25:49,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 32 conjunts are in the unsatisfiable core [2020-12-01 15:25:49,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:25:50,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:25:50,480 WARN L261 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-01 15:25:50,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:25:50,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:25:50,523 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.12 stem predicates 2 loop predicates [2020-12-01 15:25:50,523 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 56 states and 63 transitions. cyclomatic complexity: 12 Second operand 14 states. [2020-12-01 15:25:50,856 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 56 states and 63 transitions. cyclomatic complexity: 12. Second operand 14 states. Result 85 states and 99 transitions. Complement of second has 13 states. [2020-12-01 15:25:50,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 11 stem states 0 non-accepting loop states 1 accepting loop states [2020-12-01 15:25:50,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-12-01 15:25:50,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 53 transitions. [2020-12-01 15:25:50,858 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 53 transitions. Stem has 50 letters. Loop has 2 letters. [2020-12-01 15:25:50,858 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:25:50,858 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-12-01 15:25:50,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:25:50,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:25:50,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 32 conjunts are in the unsatisfiable core [2020-12-01 15:25:50,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:25:51,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:25:51,421 WARN L261 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-01 15:25:51,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:25:51,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:25:51,460 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.12 stem predicates 2 loop predicates [2020-12-01 15:25:51,461 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 56 states and 63 transitions. cyclomatic complexity: 12 Second operand 14 states. [2020-12-01 15:25:51,802 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 56 states and 63 transitions. cyclomatic complexity: 12. Second operand 14 states. Result 85 states and 99 transitions. Complement of second has 13 states. [2020-12-01 15:25:51,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 11 stem states 0 non-accepting loop states 1 accepting loop states [2020-12-01 15:25:51,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-12-01 15:25:51,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 53 transitions. [2020-12-01 15:25:51,804 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 53 transitions. Stem has 50 letters. Loop has 2 letters. [2020-12-01 15:25:51,804 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:25:51,805 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-12-01 15:25:51,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:25:51,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:25:51,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 32 conjunts are in the unsatisfiable core [2020-12-01 15:25:51,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:25:52,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:25:52,407 WARN L261 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-01 15:25:52,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:25:52,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:25:52,454 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.12 stem predicates 2 loop predicates [2020-12-01 15:25:52,454 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 56 states and 63 transitions. cyclomatic complexity: 12 Second operand 14 states. [2020-12-01 15:25:52,843 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 56 states and 63 transitions. cyclomatic complexity: 12. Second operand 14 states. Result 111 states and 136 transitions. Complement of second has 19 states. [2020-12-01 15:25:52,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 15 states 12 stem states 1 non-accepting loop states 2 accepting loop states [2020-12-01 15:25:52,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-12-01 15:25:52,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 66 transitions. [2020-12-01 15:25:52,845 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 66 transitions. Stem has 50 letters. Loop has 2 letters. [2020-12-01 15:25:52,845 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:25:52,845 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 66 transitions. Stem has 52 letters. Loop has 2 letters. [2020-12-01 15:25:52,845 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:25:52,845 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 66 transitions. Stem has 50 letters. Loop has 4 letters. [2020-12-01 15:25:52,846 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:25:52,846 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 111 states and 136 transitions. [2020-12-01 15:25:52,847 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 12 [2020-12-01 15:25:52,848 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 111 states to 111 states and 136 transitions. [2020-12-01 15:25:52,848 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 63 [2020-12-01 15:25:52,849 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 70 [2020-12-01 15:25:52,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 111 states and 136 transitions. [2020-12-01 15:25:52,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:25:52,849 INFO L692 BuchiCegarLoop]: Abstraction has 111 states and 136 transitions. [2020-12-01 15:25:52,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states and 136 transitions. [2020-12-01 15:25:52,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 74. [2020-12-01 15:25:52,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-12-01 15:25:52,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 86 transitions. [2020-12-01 15:25:52,852 INFO L715 BuchiCegarLoop]: Abstraction has 74 states and 86 transitions. [2020-12-01 15:25:52,852 INFO L595 BuchiCegarLoop]: Abstraction has 74 states and 86 transitions. [2020-12-01 15:25:52,852 INFO L427 BuchiCegarLoop]: ======== Iteration 20============ [2020-12-01 15:25:52,852 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states and 86 transitions. [2020-12-01 15:25:52,853 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:25:52,853 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:25:52,853 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:25:52,854 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:25:52,854 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:25:52,854 INFO L794 eck$LassoCheckResult]: Stem: 5892#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 5889#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 5890#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5893#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5897#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5927#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5925#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5923#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5921#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5919#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5917#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5915#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5913#L35-3 assume !(main_~i~0 < 5); 5891#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 5878#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 5879#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5880#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5881#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5928#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5926#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5924#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5922#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5920#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5918#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5916#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5914#L39-3 assume !(main_~i~0 < 5); 5908#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 5884#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 5885#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 5886#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 5887#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 5888#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 5896#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 5933#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 5929#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 5930#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 5932#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 5894#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 5895#L44-4 main_~nc_B~0 := 0; 5904#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5905#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 5906#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5907#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 5936#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5935#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 5934#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5874#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 5875#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 5898#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 5940#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 5939#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 5903#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 5899#L57-2 [2020-12-01 15:25:52,854 INFO L796 eck$LassoCheckResult]: Loop: 5899#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 5900#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 5899#L57-2 [2020-12-01 15:25:52,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:25:52,855 INFO L82 PathProgramCache]: Analyzing trace with hash -490836425, now seen corresponding path program 8 times [2020-12-01 15:25:52,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:25:52,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31784818] [2020-12-01 15:25:52,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:25:52,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:25:52,974 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 20 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-12-01 15:25:52,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31784818] [2020-12-01 15:25:52,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [880881299] [2020-12-01 15:25:52,975 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 246 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 246 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:25:53,056 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-01 15:25:53,056 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:25:53,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-01 15:25:53,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:25:53,230 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 20 proven. 12 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-12-01 15:25:53,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:25:53,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2020-12-01 15:25:53,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222812051] [2020-12-01 15:25:53,231 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 15:25:53,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:25:53,232 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 11 times [2020-12-01 15:25:53,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:25:53,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385148215] [2020-12-01 15:25:53,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:25:53,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:25:53,235 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:25:53,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:25:53,237 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:25:53,238 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:25:53,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:25:53,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-12-01 15:25:53,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=150, Unknown=0, NotChecked=0, Total=240 [2020-12-01 15:25:53,326 INFO L87 Difference]: Start difference. First operand 74 states and 86 transitions. cyclomatic complexity: 18 Second operand 16 states. [2020-12-01 15:25:53,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:25:53,536 INFO L93 Difference]: Finished difference Result 94 states and 112 transitions. [2020-12-01 15:25:53,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-01 15:25:53,537 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 94 states and 112 transitions. [2020-12-01 15:25:53,538 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-12-01 15:25:53,539 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 94 states to 92 states and 110 transitions. [2020-12-01 15:25:53,539 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2020-12-01 15:25:53,540 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 56 [2020-12-01 15:25:53,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 92 states and 110 transitions. [2020-12-01 15:25:53,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:25:53,540 INFO L692 BuchiCegarLoop]: Abstraction has 92 states and 110 transitions. [2020-12-01 15:25:53,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states and 110 transitions. [2020-12-01 15:25:53,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 76. [2020-12-01 15:25:53,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-12-01 15:25:53,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 88 transitions. [2020-12-01 15:25:53,543 INFO L715 BuchiCegarLoop]: Abstraction has 76 states and 88 transitions. [2020-12-01 15:25:53,543 INFO L595 BuchiCegarLoop]: Abstraction has 76 states and 88 transitions. [2020-12-01 15:25:53,543 INFO L427 BuchiCegarLoop]: ======== Iteration 21============ [2020-12-01 15:25:53,544 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 76 states and 88 transitions. [2020-12-01 15:25:53,544 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:25:53,545 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:25:53,545 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:25:53,545 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:25:53,546 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:25:53,546 INFO L794 eck$LassoCheckResult]: Stem: 6238#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 6235#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 6236#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 6239#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 6243#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 6269#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 6267#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 6265#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 6263#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 6261#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 6259#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 6257#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 6255#L35-3 assume !(main_~i~0 < 5); 6237#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 6226#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 6227#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 6224#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 6225#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 6270#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 6268#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 6266#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 6264#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 6262#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 6260#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 6258#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 6256#L39-3 assume !(main_~i~0 < 5); 6253#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 6230#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 6231#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 6232#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 6233#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 6234#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 6242#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 6274#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 6275#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 6240#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 6241#L44-4 main_~nc_B~0 := 0; 6250#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 6222#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 6223#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 6279#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 6280#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 6295#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 6294#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 6293#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 6292#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 6291#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 6286#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 6284#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 6248#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 6287#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 6254#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 6245#L57-2 [2020-12-01 15:25:53,546 INFO L796 eck$LassoCheckResult]: Loop: 6245#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 6246#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 6245#L57-2 [2020-12-01 15:25:53,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:25:53,547 INFO L82 PathProgramCache]: Analyzing trace with hash -540871305, now seen corresponding path program 9 times [2020-12-01 15:25:53,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:25:53,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297413307] [2020-12-01 15:25:53,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:25:53,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:25:53,568 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:25:53,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:25:53,587 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:25:53,594 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:25:53,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:25:53,595 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 12 times [2020-12-01 15:25:53,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:25:53,595 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327393797] [2020-12-01 15:25:53,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:25:53,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:25:53,598 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:25:53,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:25:53,600 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:25:53,601 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:25:53,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:25:53,601 INFO L82 PathProgramCache]: Analyzing trace with hash -86278694, now seen corresponding path program 7 times [2020-12-01 15:25:53,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:25:53,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492010054] [2020-12-01 15:25:53,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:25:53,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:25:53,716 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 5 proven. 19 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2020-12-01 15:25:53,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492010054] [2020-12-01 15:25:53,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076190502] [2020-12-01 15:25:53,717 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 247 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 247 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:25:53,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:25:53,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-01 15:25:53,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:25:54,032 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2020-12-01 15:25:54,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:25:54,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 15 [2020-12-01 15:25:54,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33456879] [2020-12-01 15:25:54,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:25:54,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-12-01 15:25:54,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2020-12-01 15:25:54,123 INFO L87 Difference]: Start difference. First operand 76 states and 88 transitions. cyclomatic complexity: 18 Second operand 15 states. [2020-12-01 15:25:54,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:25:54,416 INFO L93 Difference]: Finished difference Result 108 states and 126 transitions. [2020-12-01 15:25:54,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-01 15:25:54,418 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 126 transitions. [2020-12-01 15:25:54,419 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-12-01 15:25:54,420 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 98 states and 114 transitions. [2020-12-01 15:25:54,420 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 60 [2020-12-01 15:25:54,420 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 60 [2020-12-01 15:25:54,420 INFO L73 IsDeterministic]: Start isDeterministic. Operand 98 states and 114 transitions. [2020-12-01 15:25:54,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:25:54,421 INFO L692 BuchiCegarLoop]: Abstraction has 98 states and 114 transitions. [2020-12-01 15:25:54,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states and 114 transitions. [2020-12-01 15:25:54,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 83. [2020-12-01 15:25:54,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-12-01 15:25:54,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 96 transitions. [2020-12-01 15:25:54,423 INFO L715 BuchiCegarLoop]: Abstraction has 83 states and 96 transitions. [2020-12-01 15:25:54,423 INFO L595 BuchiCegarLoop]: Abstraction has 83 states and 96 transitions. [2020-12-01 15:25:54,424 INFO L427 BuchiCegarLoop]: ======== Iteration 22============ [2020-12-01 15:25:54,424 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 83 states and 96 transitions. [2020-12-01 15:25:54,424 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-12-01 15:25:54,425 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:25:54,425 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:25:54,425 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:25:54,425 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2020-12-01 15:25:54,426 INFO L794 eck$LassoCheckResult]: Stem: 6609#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 6606#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 6607#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 6610#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 6614#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 6640#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 6638#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 6636#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 6634#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 6632#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 6630#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 6628#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 6626#L35-3 assume !(main_~i~0 < 5); 6608#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 6595#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 6596#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 6597#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 6598#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 6641#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 6639#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 6637#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 6635#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 6633#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 6631#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 6629#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 6627#L39-3 assume !(main_~i~0 < 5); 6624#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 6601#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 6602#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 6603#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 6604#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 6605#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 6613#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 6645#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 6646#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 6611#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 6612#L44-4 main_~nc_B~0 := 0; 6621#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 6622#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 6652#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 6653#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 6649#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 6648#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 6647#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 6591#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 6592#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 6615#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 6619#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 6625#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 6666#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 6665#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 6659#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 6658#L57-2 [2020-12-01 15:25:54,426 INFO L796 eck$LassoCheckResult]: Loop: 6658#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 6655#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 6656#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 6660#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 6658#L57-2 [2020-12-01 15:25:54,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:25:54,426 INFO L82 PathProgramCache]: Analyzing trace with hash -540873227, now seen corresponding path program 8 times [2020-12-01 15:25:54,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:25:54,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088134042] [2020-12-01 15:25:54,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:25:54,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:25:54,450 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:25:54,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:25:54,474 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:25:54,481 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:25:54,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:25:54,482 INFO L82 PathProgramCache]: Analyzing trace with hash 3419913, now seen corresponding path program 1 times [2020-12-01 15:25:54,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:25:54,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119614067] [2020-12-01 15:25:54,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:25:54,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:25:54,486 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:25:54,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:25:54,489 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:25:54,490 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:25:54,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:25:54,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1210516221, now seen corresponding path program 9 times [2020-12-01 15:25:54,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:25:54,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028652913] [2020-12-01 15:25:54,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:25:54,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:25:54,635 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 5 proven. 27 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2020-12-01 15:25:54,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028652913] [2020-12-01 15:25:54,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151404831] [2020-12-01 15:25:54,635 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 248 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 248 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:25:54,738 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2020-12-01 15:25:54,738 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:25:54,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-01 15:25:54,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:25:55,069 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 9 proven. 23 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2020-12-01 15:25:55,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:25:55,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 17 [2020-12-01 15:25:55,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372776524] [2020-12-01 15:25:55,197 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2020-12-01 15:25:55,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:25:55,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-12-01 15:25:55,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2020-12-01 15:25:55,235 INFO L87 Difference]: Start difference. First operand 83 states and 96 transitions. cyclomatic complexity: 22 Second operand 17 states. [2020-12-01 15:25:55,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:25:55,506 INFO L93 Difference]: Finished difference Result 87 states and 97 transitions. [2020-12-01 15:25:55,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-01 15:25:55,506 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 87 states and 97 transitions. [2020-12-01 15:25:55,507 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:25:55,508 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 87 states to 61 states and 68 transitions. [2020-12-01 15:25:55,508 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2020-12-01 15:25:55,508 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2020-12-01 15:25:55,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 68 transitions. [2020-12-01 15:25:55,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:25:55,508 INFO L692 BuchiCegarLoop]: Abstraction has 61 states and 68 transitions. [2020-12-01 15:25:55,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 68 transitions. [2020-12-01 15:25:55,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 60. [2020-12-01 15:25:55,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-12-01 15:25:55,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 67 transitions. [2020-12-01 15:25:55,510 INFO L715 BuchiCegarLoop]: Abstraction has 60 states and 67 transitions. [2020-12-01 15:25:55,510 INFO L595 BuchiCegarLoop]: Abstraction has 60 states and 67 transitions. [2020-12-01 15:25:55,511 INFO L427 BuchiCegarLoop]: ======== Iteration 23============ [2020-12-01 15:25:55,511 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 67 transitions. [2020-12-01 15:25:55,511 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:25:55,511 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:25:55,511 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:25:55,512 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:25:55,512 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:25:55,512 INFO L794 eck$LassoCheckResult]: Stem: 6974#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 6971#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 6972#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 6975#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 6978#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 7003#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 7001#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 6999#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 6997#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 6995#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 6993#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 6991#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 6989#L35-3 assume !(main_~i~0 < 5); 6973#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 6960#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 6961#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 6962#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 6963#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 7004#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 7002#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 7000#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 6998#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 6996#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 6994#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 6992#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 6990#L39-3 assume !(main_~i~0 < 5); 6986#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 6966#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 6967#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 6968#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 6969#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 6970#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 6977#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 7015#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 7014#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 7006#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 7005#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 6976#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 6964#L44-4 main_~nc_B~0 := 0; 6965#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 6958#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 6959#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 6985#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 7009#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 7008#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 7007#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 6988#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 6987#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 6956#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 6957#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 6979#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 7011#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 7010#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 6983#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 6980#L57-2 [2020-12-01 15:25:55,513 INFO L796 eck$LassoCheckResult]: Loop: 6980#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 6981#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 6980#L57-2 [2020-12-01 15:25:55,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:25:55,513 INFO L82 PathProgramCache]: Analyzing trace with hash 733724978, now seen corresponding path program 10 times [2020-12-01 15:25:55,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:25:55,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694790436] [2020-12-01 15:25:55,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:25:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:25:55,535 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:25:55,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:25:55,559 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:25:55,565 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:25:55,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:25:55,566 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 13 times [2020-12-01 15:25:55,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:25:55,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206973649] [2020-12-01 15:25:55,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:25:55,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:25:55,569 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:25:55,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:25:55,571 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:25:55,572 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:25:55,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:25:55,572 INFO L82 PathProgramCache]: Analyzing trace with hash 735069909, now seen corresponding path program 10 times [2020-12-01 15:25:55,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:25:55,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11174707] [2020-12-01 15:25:55,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:25:55,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:25:55,594 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:25:55,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:25:55,615 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:25:55,622 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:26:05,533 WARN L197 SmtUtils]: Spent 9.82 s on a formula simplification. DAG size of input: 417 DAG size of output: 304 [2020-12-01 15:26:06,941 WARN L197 SmtUtils]: Spent 1.34 s on a formula simplification that was a NOOP. DAG size: 166 [2020-12-01 15:26:06,945 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:26:06,945 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:26:06,945 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:26:06,945 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:26:06,945 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:26:06,945 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:06,945 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:26:06,945 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:26:06,945 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-2.i_Iteration23_Lasso [2020-12-01 15:26:06,945 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:26:06,945 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:26:06,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:06,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:06,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:06,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:06,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:06,968 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:06,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:06,974 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:06,977 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:06,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:06,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:06,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:06,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:06,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:06,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:07,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:09,493 WARN L197 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 105 [2020-12-01 15:26:09,760 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 51 [2020-12-01 15:26:09,760 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:09,764 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:09,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:09,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:10,191 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2020-12-01 15:26:13,843 WARN L197 SmtUtils]: Spent 3.40 s on a formula simplification. DAG size of input: 106 DAG size of output: 78 [2020-12-01 15:26:13,925 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:26:13,925 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 249 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 249 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:13,967 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:13,968 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:13,968 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:13,968 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:13,969 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:13,969 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:13,969 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:13,969 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:13,986 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 250 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:26:14,022 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 [2020-12-01 15:26:14,024 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:14,024 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:14,024 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:14,024 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:14,024 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:14,025 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:14,025 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 250 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:14,026 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 251 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 251 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:14,047 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:14,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:14,048 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:14,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:14,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:14,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:14,049 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:14,049 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:14,050 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 252 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 252 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:14,071 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:14,072 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:14,072 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:14,072 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:14,072 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:14,073 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:14,073 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:14,075 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 253 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 253 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:14,096 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 [2020-12-01 15:26:14,097 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:14,097 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:14,097 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:14,098 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:14,099 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:14,099 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:14,101 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 254 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 254 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:14,122 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 [2020-12-01 15:26:14,123 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:14,124 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:14,124 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:14,124 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:14,124 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:14,124 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:14,124 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:14,125 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 255 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:26:14,148 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 255 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:14,149 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:14,149 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:14,149 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:14,149 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:14,149 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:14,150 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:14,150 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:14,155 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 256 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 256 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:14,188 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:14,190 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:14,190 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:14,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:14,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:14,190 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:14,191 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:14,191 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:14,194 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 257 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 257 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:14,217 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:14,219 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:14,219 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:14,220 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:14,220 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:14,220 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:14,220 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:14,220 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:14,222 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 258 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 258 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:14,246 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:14,247 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:14,247 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:14,247 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:14,247 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:14,249 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:14,249 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:14,251 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 259 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 259 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:14,276 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:14,277 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:14,277 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:14,277 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:14,277 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:14,277 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:14,278 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:14,278 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:14,279 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 260 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 260 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:14,299 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:14,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:14,301 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:14,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:14,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:14,301 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:14,301 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:14,301 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:14,310 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 261 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 261 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:14,330 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:14,331 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:14,331 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:14,331 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:14,331 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:14,332 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:14,332 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:14,332 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:14,333 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 262 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 262 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:14,353 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:14,354 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:14,354 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:14,354 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:14,354 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:14,355 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:14,355 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:14,357 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 263 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 263 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:14,377 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:14,379 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:14,379 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:14,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:14,379 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:14,379 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:14,379 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:14,379 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:14,385 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 264 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 264 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:14,406 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 [2020-12-01 15:26:14,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:14,407 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:14,407 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:14,407 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:14,409 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:14,409 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:14,412 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 265 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 265 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:14,432 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:14,433 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:14,433 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:14,433 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:14,433 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:14,434 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:14,434 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:14,434 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:14,435 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 266 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 266 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:14,455 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:14,456 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:14,456 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-12-01 15:26:14,456 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:14,456 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:14,457 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-12-01 15:26:14,457 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:14,460 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 267 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 267 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:14,480 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:14,481 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:14,481 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:14,481 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:14,481 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:14,488 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:14,488 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:14,502 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:26:14,562 INFO L443 ModelExtractionUtils]: Simplification made 28 calls to the SMT solver. [2020-12-01 15:26:14,562 INFO L444 ModelExtractionUtils]: 1 out of 31 variables were initially zero. Simplification set additionally 27 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 268 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 268 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:14,564 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:26:14,569 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 15:26:14,569 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:26:14,569 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~nc_A~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~nc_A~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-12-01 15:26:15,017 INFO L297 tatePredicateManager]: 75 out of 75 supporting invariants were superfluous and have been removed [2020-12-01 15:26:15,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:15,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:26:15,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:26:15,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:26:15,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:26:15,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 15:26:15,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:26:15,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:26:15,188 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 [2020-12-01 15:26:15,188 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 67 transitions. cyclomatic complexity: 12 Second operand 3 states. [2020-12-01 15:26:15,204 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 67 transitions. cyclomatic complexity: 12. Second operand 3 states. Result 62 states and 71 transitions. Complement of second has 5 states. [2020-12-01 15:26:15,205 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 [2020-12-01 15:26:15,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-12-01 15:26:15,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2020-12-01 15:26:15,205 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 25 transitions. Stem has 54 letters. Loop has 2 letters. [2020-12-01 15:26:15,206 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:26:15,206 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-12-01 15:26:15,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:15,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:26:15,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:26:15,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:26:15,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:26:15,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 15:26:15,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:26:15,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:26:15,396 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 [2020-12-01 15:26:15,396 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 67 transitions. cyclomatic complexity: 12 Second operand 3 states. [2020-12-01 15:26:15,412 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 67 transitions. cyclomatic complexity: 12. Second operand 3 states. Result 62 states and 71 transitions. Complement of second has 5 states. [2020-12-01 15:26:15,413 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 [2020-12-01 15:26:15,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-12-01 15:26:15,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2020-12-01 15:26:15,414 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 25 transitions. Stem has 54 letters. Loop has 2 letters. [2020-12-01 15:26:15,414 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:26:15,414 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-12-01 15:26:15,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:15,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:26:15,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:26:15,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:26:15,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:26:15,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 15:26:15,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:26:15,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:26:15,613 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 [2020-12-01 15:26:15,613 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 67 transitions. cyclomatic complexity: 12 Second operand 3 states. [2020-12-01 15:26:15,632 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 67 transitions. cyclomatic complexity: 12. Second operand 3 states. Result 64 states and 74 transitions. Complement of second has 4 states. [2020-12-01 15:26:15,633 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 [2020-12-01 15:26:15,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-12-01 15:26:15,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 26 transitions. [2020-12-01 15:26:15,633 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 26 transitions. Stem has 54 letters. Loop has 2 letters. [2020-12-01 15:26:15,634 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:26:15,634 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 26 transitions. Stem has 56 letters. Loop has 2 letters. [2020-12-01 15:26:15,634 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:26:15,634 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 26 transitions. Stem has 54 letters. Loop has 4 letters. [2020-12-01 15:26:15,634 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:26:15,634 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 74 transitions. [2020-12-01 15:26:15,635 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-12-01 15:26:15,636 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 62 states and 70 transitions. [2020-12-01 15:26:15,636 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2020-12-01 15:26:15,636 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2020-12-01 15:26:15,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 70 transitions. [2020-12-01 15:26:15,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:26:15,636 INFO L692 BuchiCegarLoop]: Abstraction has 62 states and 70 transitions. [2020-12-01 15:26:15,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 70 transitions. [2020-12-01 15:26:15,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 54. [2020-12-01 15:26:15,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-12-01 15:26:15,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2020-12-01 15:26:15,637 INFO L715 BuchiCegarLoop]: Abstraction has 54 states and 58 transitions. [2020-12-01 15:26:15,638 INFO L595 BuchiCegarLoop]: Abstraction has 54 states and 58 transitions. [2020-12-01 15:26:15,638 INFO L427 BuchiCegarLoop]: ======== Iteration 24============ [2020-12-01 15:26:15,638 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 58 transitions. [2020-12-01 15:26:15,638 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-12-01 15:26:15,638 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:26:15,638 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:26:15,639 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:26:15,639 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:26:15,639 INFO L794 eck$LassoCheckResult]: Stem: 8058#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 8055#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 8056#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8059#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8061#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8085#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8083#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8081#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8079#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8077#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8075#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8073#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8071#L35-3 assume !(main_~i~0 < 5); 8057#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 8044#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 8045#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8046#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8047#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8086#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8084#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8082#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8080#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8078#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8076#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8074#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8072#L39-3 assume !(main_~i~0 < 5); 8068#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 8050#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 8051#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8052#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 8053#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8054#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 8093#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8092#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 8091#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8088#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 8087#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8060#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 8048#L44-4 main_~nc_B~0 := 0; 8049#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8066#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 8067#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8042#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 8043#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8090#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 8089#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8070#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 8069#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8040#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 8041#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 8062#L57-2 [2020-12-01 15:26:15,640 INFO L796 eck$LassoCheckResult]: Loop: 8062#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 8064#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 8062#L57-2 [2020-12-01 15:26:15,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:15,640 INFO L82 PathProgramCache]: Analyzing trace with hash -456329688, now seen corresponding path program 2 times [2020-12-01 15:26:15,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:26:15,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902614291] [2020-12-01 15:26:15,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:26:15,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:15,667 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:15,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:15,685 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:15,693 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:26:15,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:15,694 INFO L82 PathProgramCache]: Analyzing trace with hash 3558, now seen corresponding path program 1 times [2020-12-01 15:26:15,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:26:15,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706596400] [2020-12-01 15:26:15,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:26:15,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:15,698 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:15,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:15,700 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:15,701 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:26:15,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:15,702 INFO L82 PathProgramCache]: Analyzing trace with hash -446163379, now seen corresponding path program 11 times [2020-12-01 15:26:15,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:26:15,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608112915] [2020-12-01 15:26:15,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:26:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:15,722 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:15,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:15,742 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:15,751 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:26:31,596 WARN L197 SmtUtils]: Spent 15.75 s on a formula simplification. DAG size of input: 368 DAG size of output: 274 [2020-12-01 15:26:32,875 WARN L197 SmtUtils]: Spent 1.24 s on a formula simplification that was a NOOP. DAG size: 148 [2020-12-01 15:26:32,879 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:26:32,879 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:26:32,879 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:26:32,879 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:26:32,879 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:26:32,880 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:32,880 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:26:32,880 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:26:32,880 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-2.i_Iteration24_Lasso [2020-12-01 15:26:32,880 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:26:32,880 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:26:32,883 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:32,888 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:32,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:32,899 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:32,904 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:32,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:32,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:32,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:32,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:32,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:32,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:32,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:32,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:32,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:32,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:32,972 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:32,977 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:32,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:32,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:35,179 WARN L197 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 92 [2020-12-01 15:26:35,416 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 48 [2020-12-01 15:26:35,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:26:35,897 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2020-12-01 15:26:36,284 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-12-01 15:26:36,561 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:26:36,562 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 269 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 269 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:36,564 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:36,566 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:36,566 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:36,566 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:36,566 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:36,566 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:36,566 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:36,566 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:36,568 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 270 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 270 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:36,593 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:36,594 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:36,595 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:36,595 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:36,595 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:36,595 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:36,595 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:36,595 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:36,596 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 271 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 271 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:36,620 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:36,622 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:36,622 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:36,622 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:36,622 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:36,623 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:36,623 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:36,626 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 272 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 272 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:36,650 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:36,651 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:36,651 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:36,651 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:36,651 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:36,651 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:36,652 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:36,652 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:36,653 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 273 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 273 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:36,676 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:36,677 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:36,677 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:36,678 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:36,678 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:36,679 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:36,679 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:36,682 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 274 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 274 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:36,706 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 [2020-12-01 15:26:36,707 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:36,707 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:36,707 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:36,708 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:36,708 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:36,708 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:36,708 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:36,717 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 275 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 275 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:36,741 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:36,742 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:36,742 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:36,742 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:36,743 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:36,743 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:36,743 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:36,743 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:36,744 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 276 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 276 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:36,768 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:36,770 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:36,770 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:36,770 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:36,770 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:36,770 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:36,770 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:36,770 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:36,772 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 277 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:26:36,798 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:36,800 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:36,800 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:36,800 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:36,800 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:36,800 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:36,801 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:36,801 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 277 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:36,803 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 278 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 278 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:36,827 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:36,828 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:36,829 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:36,829 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:36,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:36,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:36,829 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:36,829 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:36,831 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 279 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 279 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:36,855 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:36,856 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:36,857 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:36,857 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:36,857 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:36,858 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:36,858 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:36,861 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 280 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 280 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:36,886 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:36,887 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:36,887 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:36,887 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:36,887 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:36,887 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:36,888 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:36,888 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:36,889 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 281 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 281 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:36,913 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:36,914 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:36,914 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:36,914 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:36,914 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:36,914 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:36,915 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:36,915 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:36,916 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 282 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 282 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:36,939 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:36,940 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:36,940 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:36,940 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:36,940 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:36,941 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:36,941 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:36,944 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 283 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 283 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:36,972 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:36,974 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:36,974 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:36,974 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:36,974 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:36,974 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:36,975 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:36,975 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:36,976 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 284 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 284 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:36,999 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:37,000 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:37,000 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:37,000 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:37,000 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:37,000 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:37,001 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:37,001 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:37,002 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 285 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 285 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:37,024 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:37,025 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:37,025 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:37,025 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:37,025 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:37,025 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:37,026 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:37,026 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:37,027 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 286 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 286 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:37,048 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:37,050 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:37,050 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:37,050 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:37,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:37,050 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:37,050 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:37,050 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:37,051 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 287 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:26:37,087 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:37,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:37,089 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:37,089 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:37,089 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:37,091 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:37,091 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 287 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:37,102 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 288 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 288 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:37,128 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:37,129 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:37,129 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-12-01 15:26:37,130 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:37,130 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:37,131 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-12-01 15:26:37,131 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:37,134 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 289 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 289 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:37,156 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:37,157 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:37,157 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:37,158 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:37,158 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:37,160 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:37,160 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:37,166 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 290 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 290 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:37,189 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 [2020-12-01 15:26:37,190 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:37,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:37,191 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:37,191 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:37,192 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:37,192 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:37,195 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 291 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 291 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:37,217 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:37,218 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:37,218 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-12-01 15:26:37,218 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:37,218 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:37,220 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-12-01 15:26:37,220 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:37,223 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 292 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 292 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:37,243 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:37,244 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:37,245 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-12-01 15:26:37,245 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:37,245 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:37,246 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-12-01 15:26:37,246 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:37,256 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 293 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 293 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:37,275 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:37,276 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:37,276 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-12-01 15:26:37,276 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:37,276 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:37,277 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-12-01 15:26:37,277 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:37,286 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 294 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 294 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:37,310 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:37,311 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:37,311 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:37,311 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:37,311 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:37,311 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:37,311 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:37,311 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:37,312 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 295 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 295 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:37,332 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 [2020-12-01 15:26:37,334 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:37,334 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-12-01 15:26:37,334 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:37,334 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:37,335 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-12-01 15:26:37,335 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:37,337 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 296 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 296 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:37,358 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:37,359 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:37,359 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:37,359 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:37,359 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:37,360 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:37,360 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:37,362 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 297 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 297 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:37,383 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:37,384 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:37,384 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2020-12-01 15:26:37,384 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-12-01 15:26:37,384 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:37,394 INFO L401 nArgumentSynthesizer]: We have 28 Motzkin's Theorem applications. [2020-12-01 15:26:37,395 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-12-01 15:26:37,415 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 298 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 298 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:37,437 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 [2020-12-01 15:26:37,438 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:37,438 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:37,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:37,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:37,438 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:37,439 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:37,439 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:37,440 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 299 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 299 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:37,463 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 [2020-12-01 15:26:37,464 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:37,465 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:37,465 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:37,465 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:37,466 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:37,466 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:37,470 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 300 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 300 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:37,503 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:37,504 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:37,504 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:37,505 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:37,505 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:37,505 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:37,506 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:37,510 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 301 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 301 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:37,533 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:37,535 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:37,535 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:37,535 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:37,535 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:37,536 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:37,536 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:37,540 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 302 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 302 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:37,564 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:37,565 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:37,565 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:37,565 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:37,565 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:37,566 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:37,567 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:37,569 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 303 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 303 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:37,592 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:37,594 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:37,594 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:37,594 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:37,594 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:37,595 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:37,595 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:37,598 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 304 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 304 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:37,621 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:37,622 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:37,623 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-12-01 15:26:37,623 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:37,623 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:37,624 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-12-01 15:26:37,624 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:37,627 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 305 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 305 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:37,650 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:26:37,651 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:37,651 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:26:37,651 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:37,651 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:37,651 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:37,652 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:26:37,652 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:26:37,653 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 306 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 306 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:37,675 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 [2020-12-01 15:26:37,677 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:26:37,677 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:26:37,677 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:26:37,677 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:26:37,685 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:26:37,685 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:26:37,700 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:26:37,739 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2020-12-01 15:26:37,739 INFO L444 ModelExtractionUtils]: 2 out of 31 variables were initially zero. Simplification set additionally 26 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 307 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 307 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:26:37,741 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:26:37,743 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 15:26:37,743 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:26:37,743 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_10, ULTIMATE.start_main_~i~0) = 1*v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_10 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-12-01 15:26:38,197 INFO L297 tatePredicateManager]: 70 out of 72 supporting invariants were superfluous and have been removed [2020-12-01 15:26:38,208 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 15:26:38,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:38,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:26:38,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-01 15:26:38,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:26:38,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:26:38,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-01 15:26:38,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:26:38,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:26:38,583 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-12-01 15:26:38,583 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 54 states and 58 transitions. cyclomatic complexity: 7 Second operand 4 states. [2020-12-01 15:26:38,723 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 54 states and 58 transitions. cyclomatic complexity: 7. Second operand 4 states. Result 63 states and 72 transitions. Complement of second has 7 states. [2020-12-01 15:26:38,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 2 accepting loop states [2020-12-01 15:26:38,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-12-01 15:26:38,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 23 transitions. [2020-12-01 15:26:38,726 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 50 letters. Loop has 2 letters. [2020-12-01 15:26:38,726 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:26:38,726 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 52 letters. Loop has 2 letters. [2020-12-01 15:26:38,726 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:26:38,726 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 50 letters. Loop has 4 letters. [2020-12-01 15:26:38,727 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:26:38,727 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 72 transitions. [2020-12-01 15:26:38,728 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-12-01 15:26:38,728 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 61 states and 68 transitions. [2020-12-01 15:26:38,729 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2020-12-01 15:26:38,729 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2020-12-01 15:26:38,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 68 transitions. [2020-12-01 15:26:38,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:26:38,729 INFO L692 BuchiCegarLoop]: Abstraction has 61 states and 68 transitions. [2020-12-01 15:26:38,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 68 transitions. [2020-12-01 15:26:38,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 57. [2020-12-01 15:26:38,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-12-01 15:26:38,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 63 transitions. [2020-12-01 15:26:38,731 INFO L715 BuchiCegarLoop]: Abstraction has 57 states and 63 transitions. [2020-12-01 15:26:38,731 INFO L595 BuchiCegarLoop]: Abstraction has 57 states and 63 transitions. [2020-12-01 15:26:38,731 INFO L427 BuchiCegarLoop]: ======== Iteration 25============ [2020-12-01 15:26:38,731 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 57 states and 63 transitions. [2020-12-01 15:26:38,732 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-12-01 15:26:38,732 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:26:38,732 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:26:38,733 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:26:38,733 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:26:38,733 INFO L794 eck$LassoCheckResult]: Stem: 8653#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 8650#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 8651#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8654#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8656#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8682#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8680#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8678#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8676#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8674#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8672#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8670#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8668#L35-3 assume !(main_~i~0 < 5); 8652#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 8641#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 8642#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8639#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8640#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8683#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8681#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8679#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8677#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8675#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8673#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8671#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8669#L39-3 assume !(main_~i~0 < 5); 8662#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 8645#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 8646#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8647#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 8648#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8649#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 8691#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8689#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 8687#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8685#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 8684#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8655#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 8643#L44-4 main_~nc_B~0 := 0; 8644#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8637#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 8638#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8661#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 8690#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8688#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 8686#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8667#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 8666#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8635#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 8636#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 8657#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 8659#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 8665#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 8663#L57 [2020-12-01 15:26:38,733 INFO L796 eck$LassoCheckResult]: Loop: 8663#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 8664#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 8663#L57 [2020-12-01 15:26:38,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:38,734 INFO L82 PathProgramCache]: Analyzing trace with hash -946162842, now seen corresponding path program 2 times [2020-12-01 15:26:38,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:26:38,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177581471] [2020-12-01 15:26:38,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:26:38,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:38,758 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:38,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:38,782 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:38,789 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:26:38,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:38,790 INFO L82 PathProgramCache]: Analyzing trace with hash 3708, now seen corresponding path program 2 times [2020-12-01 15:26:38,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:26:38,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206820543] [2020-12-01 15:26:38,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:26:38,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:38,793 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:38,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:38,795 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:38,796 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:26:38,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:26:38,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1270578337, now seen corresponding path program 11 times [2020-12-01 15:26:38,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:26:38,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095641847] [2020-12-01 15:26:38,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:26:38,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:38,821 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:38,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:26:38,845 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:26:38,852 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:27:04,652 WARN L197 SmtUtils]: Spent 25.67 s on a formula simplification. DAG size of input: 407 DAG size of output: 294 [2020-12-01 15:27:08,473 WARN L197 SmtUtils]: Spent 3.79 s on a formula simplification that was a NOOP. DAG size: 172 [2020-12-01 15:27:08,478 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:27:08,478 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:27:08,478 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:27:08,478 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:27:08,478 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:27:08,478 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:08,478 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:27:08,478 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:27:08,478 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-2.i_Iteration25_Lasso [2020-12-01 15:27:08,479 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:27:08,479 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:27:08,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:08,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:08,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:08,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:08,510 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:08,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:17,404 WARN L197 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 109 [2020-12-01 15:27:18,089 WARN L197 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2020-12-01 15:27:18,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:18,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:18,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:18,109 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:18,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:18,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:18,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:18,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:18,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:18,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:18,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:18,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:27:18,461 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-12-01 15:27:19,608 WARN L197 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2020-12-01 15:27:19,773 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-12-01 15:27:19,880 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:27:19,880 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 308 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 308 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:19,883 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:27:19,884 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:19,885 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:27:19,885 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:19,885 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:19,885 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:19,885 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:27:19,885 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:27:19,887 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 309 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 309 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:19,912 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:27:19,914 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:19,914 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:19,914 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:19,914 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:19,915 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:19,915 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:19,918 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 310 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 310 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:19,940 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:27:19,941 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:19,941 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:27:19,941 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:19,941 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:19,941 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:19,941 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:27:19,941 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:27:19,942 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 311 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 311 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:19,962 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:27:19,963 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:19,963 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:27:19,963 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:19,963 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:19,963 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:19,964 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:27:19,964 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:27:19,972 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 312 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 312 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:19,992 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 [2020-12-01 15:27:19,993 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:19,993 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:27:19,993 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:19,993 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:19,993 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:19,993 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:27:19,993 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:27:20,002 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 313 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 313 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:20,022 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 [2020-12-01 15:27:20,023 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:20,023 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-12-01 15:27:20,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:20,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:20,024 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-12-01 15:27:20,024 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:20,027 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 314 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 314 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:20,047 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:27:20,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:20,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:20,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:20,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:20,049 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:20,049 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:20,052 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 315 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 315 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:20,072 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:27:20,073 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:20,073 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:20,074 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:20,074 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:20,074 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:20,075 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:20,077 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 316 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 316 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:20,100 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:27:20,104 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:20,104 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:27:20,104 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:20,104 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:20,104 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:20,104 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:27:20,104 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:27:20,105 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 317 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 317 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:20,126 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:27:20,129 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:20,129 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-12-01 15:27:20,129 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:20,129 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:20,131 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-12-01 15:27:20,131 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:20,136 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 318 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 318 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:20,157 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:27:20,158 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:20,159 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:20,159 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:20,159 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:20,160 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:20,160 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:20,162 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 319 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 319 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:20,182 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:27:20,183 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:27:20,183 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:27:20,183 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:27:20,183 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:27:20,190 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:27:20,190 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:27:20,205 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:27:20,229 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2020-12-01 15:27:20,229 INFO L444 ModelExtractionUtils]: 0 out of 31 variables were initially zero. Simplification set additionally 27 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 320 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 320 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:27:20,230 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:27:20,232 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 15:27:20,232 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:27:20,232 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~nc_A~0, ULTIMATE.start_main_~j~0) = -8*ULTIMATE.start_main_~i~0 + 5*ULTIMATE.start_main_~nc_A~0 + 8*ULTIMATE.start_main_~j~0 Supporting invariants [] [2020-12-01 15:27:20,903 INFO L297 tatePredicateManager]: 75 out of 77 supporting invariants were superfluous and have been removed [2020-12-01 15:27:20,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:21,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:21,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-01 15:27:21,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:21,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:21,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-01 15:27:21,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:21,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:27:21,490 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.7 stem predicates 2 loop predicates [2020-12-01 15:27:21,490 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 57 states and 63 transitions. cyclomatic complexity: 10 Second operand 9 states. [2020-12-01 15:27:21,862 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 57 states and 63 transitions. cyclomatic complexity: 10. Second operand 9 states. Result 95 states and 111 transitions. Complement of second has 14 states. [2020-12-01 15:27:21,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 7 stem states 2 non-accepting loop states 2 accepting loop states [2020-12-01 15:27:21,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-12-01 15:27:21,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 44 transitions. [2020-12-01 15:27:21,865 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 44 transitions. Stem has 53 letters. Loop has 2 letters. [2020-12-01 15:27:21,865 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:27:21,865 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 44 transitions. Stem has 55 letters. Loop has 2 letters. [2020-12-01 15:27:21,865 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:27:21,866 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 44 transitions. Stem has 53 letters. Loop has 4 letters. [2020-12-01 15:27:21,866 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:27:21,866 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 95 states and 111 transitions. [2020-12-01 15:27:21,867 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-12-01 15:27:21,868 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 95 states to 62 states and 68 transitions. [2020-12-01 15:27:21,868 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2020-12-01 15:27:21,868 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2020-12-01 15:27:21,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 62 states and 68 transitions. [2020-12-01 15:27:21,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:27:21,869 INFO L692 BuchiCegarLoop]: Abstraction has 62 states and 68 transitions. [2020-12-01 15:27:21,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states and 68 transitions. [2020-12-01 15:27:21,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 59. [2020-12-01 15:27:21,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-12-01 15:27:21,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 65 transitions. [2020-12-01 15:27:21,871 INFO L715 BuchiCegarLoop]: Abstraction has 59 states and 65 transitions. [2020-12-01 15:27:21,871 INFO L595 BuchiCegarLoop]: Abstraction has 59 states and 65 transitions. [2020-12-01 15:27:21,871 INFO L427 BuchiCegarLoop]: ======== Iteration 26============ [2020-12-01 15:27:21,871 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 59 states and 65 transitions. [2020-12-01 15:27:21,871 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-12-01 15:27:21,872 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:27:21,872 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:27:21,872 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [6, 5, 5, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:27:21,873 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:27:21,873 INFO L794 eck$LassoCheckResult]: Stem: 9330#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 9327#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 9328#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 9331#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 9334#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 9360#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 9358#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 9356#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 9354#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 9352#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 9350#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 9348#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 9347#L35-3 assume !(main_~i~0 < 5); 9329#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 9316#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 9317#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 9318#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 9319#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 9362#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 9361#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 9359#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 9357#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 9355#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 9353#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 9351#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 9349#L39-3 assume !(main_~i~0 < 5); 9341#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 9322#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 9323#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 9324#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 9325#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 9326#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 9333#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 9370#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 9369#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 9368#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 9367#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 9364#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 9363#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 9332#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 9320#L44-4 main_~nc_B~0 := 0; 9321#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 9339#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 9340#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 9314#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 9315#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 9366#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 9365#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 9346#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 9345#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 9312#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 9313#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 9335#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 9337#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 9344#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 9342#L57 [2020-12-01 15:27:21,873 INFO L796 eck$LassoCheckResult]: Loop: 9342#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 9343#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 9342#L57 [2020-12-01 15:27:21,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:21,874 INFO L82 PathProgramCache]: Analyzing trace with hash 496764641, now seen corresponding path program 3 times [2020-12-01 15:27:21,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:27:21,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772570280] [2020-12-01 15:27:21,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:27:21,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:22,088 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 20 proven. 30 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2020-12-01 15:27:22,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772570280] [2020-12-01 15:27:22,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201268614] [2020-12-01 15:27:22,089 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 321 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 321 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:27:22,198 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2020-12-01 15:27:22,198 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:27:22,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-01 15:27:22,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:22,539 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 30 proven. 20 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2020-12-01 15:27:22,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:27:22,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 19 [2020-12-01 15:27:22,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946991632] [2020-12-01 15:27:22,540 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 15:27:22,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:22,541 INFO L82 PathProgramCache]: Analyzing trace with hash 3708, now seen corresponding path program 3 times [2020-12-01 15:27:22,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:27:22,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84624182] [2020-12-01 15:27:22,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:27:22,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:22,544 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:22,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:22,546 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:22,547 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:27:22,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:27:22,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-12-01 15:27:22,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=216, Unknown=0, NotChecked=0, Total=342 [2020-12-01 15:27:22,653 INFO L87 Difference]: Start difference. First operand 59 states and 65 transitions. cyclomatic complexity: 10 Second operand 19 states. [2020-12-01 15:27:22,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:27:22,958 INFO L93 Difference]: Finished difference Result 65 states and 71 transitions. [2020-12-01 15:27:22,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-01 15:27:22,961 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 71 transitions. [2020-12-01 15:27:22,962 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-12-01 15:27:22,962 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 63 states and 69 transitions. [2020-12-01 15:27:22,962 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 37 [2020-12-01 15:27:22,962 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 37 [2020-12-01 15:27:22,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 69 transitions. [2020-12-01 15:27:22,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:27:22,963 INFO L692 BuchiCegarLoop]: Abstraction has 63 states and 69 transitions. [2020-12-01 15:27:22,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states and 69 transitions. [2020-12-01 15:27:22,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61. [2020-12-01 15:27:22,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-12-01 15:27:22,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 67 transitions. [2020-12-01 15:27:22,964 INFO L715 BuchiCegarLoop]: Abstraction has 61 states and 67 transitions. [2020-12-01 15:27:22,964 INFO L595 BuchiCegarLoop]: Abstraction has 61 states and 67 transitions. [2020-12-01 15:27:22,964 INFO L427 BuchiCegarLoop]: ======== Iteration 27============ [2020-12-01 15:27:22,965 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 61 states and 67 transitions. [2020-12-01 15:27:22,965 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-12-01 15:27:22,965 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:27:22,965 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:27:22,966 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [6, 6, 5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:27:22,966 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:27:22,966 INFO L794 eck$LassoCheckResult]: Stem: 9638#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 9635#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 9636#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 9639#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 9641#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 9666#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 9664#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 9662#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 9660#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 9658#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 9656#L35-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 9655#L35-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 9653#L35-3 assume !(main_~i~0 < 5); 9637#L35-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 9624#L37 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 9625#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 9626#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 9627#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 9668#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 9667#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 9665#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 9663#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 9661#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 9659#L39-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 9657#L39-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 9654#L39-3 assume !(main_~i~0 < 5); 9647#L39-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 9630#L41 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 9631#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 9632#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 9633#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 9634#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 9675#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 9674#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 9673#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 9672#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 9671#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 9670#L44-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 9669#L44-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 9640#L44-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 9628#L44-4 main_~nc_B~0 := 0; 9629#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 9622#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 9623#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 9646#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 9680#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 9679#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 9678#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 9677#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 9676#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 9651#L48-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 9650#L48-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 9620#L48-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 9621#L48-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 9642#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 9644#L57 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 9652#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 9648#L57 [2020-12-01 15:27:22,966 INFO L796 eck$LassoCheckResult]: Loop: 9648#L57 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 9649#L57-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 9648#L57 [2020-12-01 15:27:22,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:22,966 INFO L82 PathProgramCache]: Analyzing trace with hash 2034376838, now seen corresponding path program 4 times [2020-12-01 15:27:22,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:27:22,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080392627] [2020-12-01 15:27:22,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:27:22,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:27:23,206 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 20 proven. 15 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-12-01 15:27:23,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080392627] [2020-12-01 15:27:23,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1436614169] [2020-12-01 15:27:23,207 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3763f3ca-ea20-43fb-b626-449c918e3ced/bin/uautomizer/z3 Starting monitored process 322 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 322 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:27:23,287 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-01 15:27:23,287 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:27:23,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-01 15:27:23,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:27:23,338 INFO L348 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2020-12-01 15:27:23,338 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2020-12-01 15:27:23,340 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:27:23,351 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:27:23,352 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-01 15:27:23,353 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:13, output treesize:14 [2020-12-01 15:27:23,798 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2020-12-01 15:27:23,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:27:23,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 17 [2020-12-01 15:27:23,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375837272] [2020-12-01 15:27:23,798 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 15:27:23,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:27:23,799 INFO L82 PathProgramCache]: Analyzing trace with hash 3708, now seen corresponding path program 4 times [2020-12-01 15:27:23,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:27:23,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139468651] [2020-12-01 15:27:23,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:27:23,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:23,801 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:23,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:27:23,803 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:27:23,804 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:27:23,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:27:23,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-01 15:27:23,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2020-12-01 15:27:23,904 INFO L87 Difference]: Start difference. First operand 61 states and 67 transitions. cyclomatic complexity: 10 Second operand 9 states. [2020-12-01 15:27:24,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:27:24,018 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2020-12-01 15:27:24,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-01 15:27:24,020 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 52 transitions. [2020-12-01 15:27:24,021 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 15:27:24,021 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 0 states and 0 transitions. [2020-12-01 15:27:24,021 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-12-01 15:27:24,021 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-12-01 15:27:24,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-12-01 15:27:24,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:27:24,021 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:27:24,021 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:27:24,021 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:27:24,022 INFO L427 BuchiCegarLoop]: ======== Iteration 28============ [2020-12-01 15:27:24,022 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:27:24,022 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 15:27:24,022 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-12-01 15:27:24,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 03:27:24 BoogieIcfgContainer [2020-12-01 15:27:24,027 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-12-01 15:27:24,027 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:27:24,027 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:27:24,027 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:27:24,028 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:24:14" (3/4) ... [2020-12-01 15:27:24,031 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 15:27:24,031 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:27:24,032 INFO L168 Benchmark]: Toolchain (without parser) took 189845.85 ms. Allocated memory was 88.1 MB in the beginning and 272.6 MB in the end (delta: 184.5 MB). Free memory was 58.5 MB in the beginning and 143.1 MB in the end (delta: -84.6 MB). Peak memory consumption was 100.7 MB. Max. memory is 16.1 GB. [2020-12-01 15:27:24,032 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 88.1 MB. Free memory was 44.5 MB in the beginning and 44.5 MB in the end (delta: 39.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:27:24,032 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.95 ms. Allocated memory is still 88.1 MB. Free memory was 58.3 MB in the beginning and 65.3 MB in the end (delta: -7.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:27:24,032 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.69 ms. Allocated memory is still 88.1 MB. Free memory was 65.3 MB in the beginning and 63.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:27:24,033 INFO L168 Benchmark]: Boogie Preprocessor took 35.61 ms. Allocated memory is still 88.1 MB. Free memory was 63.7 MB in the beginning and 62.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:27:24,033 INFO L168 Benchmark]: RCFGBuilder took 399.87 ms. Allocated memory is still 88.1 MB. Free memory was 62.1 MB in the beginning and 44.9 MB in the end (delta: 17.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-12-01 15:27:24,033 INFO L168 Benchmark]: BuchiAutomizer took 189054.83 ms. Allocated memory was 88.1 MB in the beginning and 272.6 MB in the end (delta: 184.5 MB). Free memory was 44.9 MB in the beginning and 144.1 MB in the end (delta: -99.2 MB). Peak memory consumption was 86.7 MB. Max. memory is 16.1 GB. [2020-12-01 15:27:24,033 INFO L168 Benchmark]: Witness Printer took 3.89 ms. Allocated memory is still 272.6 MB. Free memory was 144.1 MB in the beginning and 143.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:27:24,035 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 88.1 MB. Free memory was 44.5 MB in the beginning and 44.5 MB in the end (delta: 39.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 295.95 ms. Allocated memory is still 88.1 MB. Free memory was 58.3 MB in the beginning and 65.3 MB in the end (delta: -7.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.69 ms. Allocated memory is still 88.1 MB. Free memory was 65.3 MB in the beginning and 63.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.61 ms. Allocated memory is still 88.1 MB. Free memory was 63.7 MB in the beginning and 62.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 399.87 ms. Allocated memory is still 88.1 MB. Free memory was 62.1 MB in the beginning and 44.9 MB in the end (delta: 17.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 189054.83 ms. Allocated memory was 88.1 MB in the beginning and 272.6 MB in the end (delta: 184.5 MB). Free memory was 44.9 MB in the beginning and 144.1 MB in the end (delta: -99.2 MB). Peak memory consumption was 86.7 MB. Max. memory is 16.1 GB. * Witness Printer took 3.89 ms. Allocated memory is still 272.6 MB. Free memory was 144.1 MB in the beginning and 143.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. 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 - 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 27 terminating modules (16 trivial, 9 deterministic, 2 nondeterministic). One deterministic module has affine ranking function -2 * i + 9 * unknown-#length-unknown[string_A] and consists of 5 locations. One deterministic module has affine ranking function -1 * string_A + unknown-#length-unknown[string_A] + -1 * nc_A and consists of 3 locations. One deterministic module has affine ranking function -1 * nc_B + unknown-#length-unknown[string_B] + -1 * string_B and consists of 3 locations. One deterministic module has affine ranking function -1 * string_A + unknown-#length-unknown[string_A] + -1 * i and consists of 3 locations. One deterministic module has affine ranking function -2 * i + 3 and consists of 8 locations. One deterministic module has affine ranking function -2 * j + 3 * unknown-#length-unknown[string_B] and consists of 14 locations. One deterministic module has affine ranking function nc_B + -1 * j and consists of 3 locations. One deterministic module has affine ranking function unknown-#length-unknown[string_A] + -1 * i and consists of 5 locations. One deterministic module has affine ranking function -8 * i + 5 * nc_A + 8 * j and consists of 11 locations. One nondeterministic module has affine ranking function -2 * j + 1 and consists of 15 locations. One nondeterministic module has affine ranking function nc_A + -1 * i and consists of 3 locations. 16 modules have a trivial ranking function, the largest among these consists of 19 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 188.9s and 28 iterations. TraceHistogramMax:6. Analysis of lassos took 179.0s. Construction of modules took 1.9s. Büchi inclusion checks took 7.6s. Highest rank in rank-based complementation 3. Minimization of det autom 8. Minimization of nondet autom 19. Automata minimization 0.0s AutomataMinimizationTime, 26 MinimizatonAttempts, 187 StatesRemovedByMinimization, 22 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 83 states and ocurred in iteration 21. Nontrivial modules had stage [9, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 503 SDtfs, 828 SDslu, 1133 SDs, 0 SdLazy, 2236 SolverSat, 324 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc7 concLT0 SILN0 SILU9 SILI0 SILT0 lasso11 LassoPreprocessingBenchmarks: Lassos: inital410 mio100 ax100 hnf100 lsp96 ukn46 mio100 lsp50 div100 bol100 ite100 ukn100 eq182 hnf84 smp95 dnf478 smp81 tf100 neg95 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 241ms VariablesStem: 9 VariablesLoop: 7 DisjunctsStem: 36 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 76 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...