./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/byte_add_1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/byte_add_1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL --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 0ba3e3db8f44a5e9ad151b8422bee8deebac1dcf47a42cba5485daeafd8d8e80 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 04:35:25,669 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 04:35:25,672 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 04:35:25,713 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 04:35:25,714 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 04:35:25,716 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 04:35:25,719 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 04:35:25,722 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 04:35:25,725 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 04:35:25,726 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 04:35:25,728 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 04:35:25,730 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 04:35:25,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 04:35:25,733 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 04:35:25,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 04:35:25,737 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 04:35:25,738 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 04:35:25,740 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 04:35:25,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 04:35:25,745 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 04:35:25,748 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 04:35:25,756 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 04:35:25,760 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 04:35:25,761 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 04:35:25,779 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 04:35:25,779 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 04:35:25,780 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 04:35:25,781 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 04:35:25,782 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 04:35:25,783 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 04:35:25,784 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 04:35:25,785 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 04:35:25,786 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 04:35:25,787 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 04:35:25,789 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 04:35:25,789 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 04:35:25,790 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 04:35:25,791 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 04:35:25,791 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 04:35:25,798 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 04:35:25,799 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 04:35:25,800 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-19 04:35:25,856 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 04:35:25,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 04:35:25,857 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 04:35:25,857 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 04:35:25,859 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 04:35:25,859 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 04:35:25,859 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 04:35:25,860 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-19 04:35:25,860 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-19 04:35:25,860 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-19 04:35:25,862 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-19 04:35:25,862 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-19 04:35:25,862 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-19 04:35:25,862 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 04:35:25,863 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 04:35:25,863 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 04:35:25,863 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 04:35:25,863 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 04:35:25,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 04:35:25,864 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-19 04:35:25,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-19 04:35:25,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-19 04:35:25,864 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 04:35:25,865 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 04:35:25,865 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-19 04:35:25,865 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 04:35:25,867 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-19 04:35:25,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 04:35:25,868 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 04:35:25,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 04:35:25,868 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 04:35:25,869 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 04:35:25,870 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-19 04:35:25,870 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_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ba3e3db8f44a5e9ad151b8422bee8deebac1dcf47a42cba5485daeafd8d8e80 [2021-11-19 04:35:26,301 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 04:35:26,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 04:35:26,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 04:35:26,336 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 04:35:26,337 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 04:35:26,339 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/bitvector/byte_add_1-1.i [2021-11-19 04:35:26,455 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/data/50fab8525/38057a9a79d244fe9fce5303381deadf/FLAG59a369fbc [2021-11-19 04:35:27,177 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 04:35:27,179 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/sv-benchmarks/c/bitvector/byte_add_1-1.i [2021-11-19 04:35:27,198 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/data/50fab8525/38057a9a79d244fe9fce5303381deadf/FLAG59a369fbc [2021-11-19 04:35:27,501 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/data/50fab8525/38057a9a79d244fe9fce5303381deadf [2021-11-19 04:35:27,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 04:35:27,506 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 04:35:27,509 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 04:35:27,509 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 04:35:27,514 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 04:35:27,515 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:35:27" (1/1) ... [2021-11-19 04:35:27,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43a41630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:35:27, skipping insertion in model container [2021-11-19 04:35:27,517 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:35:27" (1/1) ... [2021-11-19 04:35:27,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 04:35:27,554 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:35:27,811 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/sv-benchmarks/c/bitvector/byte_add_1-1.i[1168,1181] [2021-11-19 04:35:27,867 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:35:27,884 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 04:35:27,899 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/sv-benchmarks/c/bitvector/byte_add_1-1.i[1168,1181] [2021-11-19 04:35:27,926 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:35:27,951 INFO L208 MainTranslator]: Completed translation [2021-11-19 04:35:27,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:35:27 WrapperNode [2021-11-19 04:35:27,952 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 04:35:27,953 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 04:35:27,954 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 04:35:27,954 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 04:35:27,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:35:27" (1/1) ... [2021-11-19 04:35:27,973 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:35:27" (1/1) ... [2021-11-19 04:35:28,016 INFO L137 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 123 [2021-11-19 04:35:28,017 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 04:35:28,018 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 04:35:28,018 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 04:35:28,018 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 04:35:28,028 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:35:27" (1/1) ... [2021-11-19 04:35:28,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:35:27" (1/1) ... [2021-11-19 04:35:28,032 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:35:27" (1/1) ... [2021-11-19 04:35:28,032 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:35:27" (1/1) ... [2021-11-19 04:35:28,040 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:35:27" (1/1) ... [2021-11-19 04:35:28,048 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:35:27" (1/1) ... [2021-11-19 04:35:28,050 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:35:27" (1/1) ... [2021-11-19 04:35:28,054 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 04:35:28,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 04:35:28,055 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 04:35:28,057 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 04:35:28,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:35:27" (1/1) ... [2021-11-19 04:35:28,068 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:35:28,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:28,100 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:35:28,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-19 04:35:28,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 04:35:28,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 04:35:28,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 04:35:28,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 04:35:28,251 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 04:35:28,254 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 04:35:28,612 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 04:35:28,621 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 04:35:28,635 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-19 04:35:28,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:35:28 BoogieIcfgContainer [2021-11-19 04:35:28,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 04:35:28,640 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-19 04:35:28,640 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-19 04:35:28,644 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-19 04:35:28,645 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 04:35:28,645 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 04:35:27" (1/3) ... [2021-11-19 04:35:28,660 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@23d32ade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 04:35:28, skipping insertion in model container [2021-11-19 04:35:28,661 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 04:35:28,661 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:35:27" (2/3) ... [2021-11-19 04:35:28,661 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@23d32ade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 04:35:28, skipping insertion in model container [2021-11-19 04:35:28,662 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 04:35:28,662 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:35:28" (3/3) ... [2021-11-19 04:35:28,664 INFO L388 chiAutomizerObserver]: Analyzing ICFG byte_add_1-1.i [2021-11-19 04:35:28,724 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-19 04:35:28,724 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-19 04:35:28,724 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-19 04:35:28,725 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-19 04:35:28,725 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-19 04:35:28,725 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-19 04:35:28,725 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-19 04:35:28,726 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-19 04:35:28,748 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 41 states, 40 states have (on average 1.75) internal successors, (70), 40 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:28,777 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 23 [2021-11-19 04:35:28,778 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:35:28,778 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:35:28,787 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-19 04:35:28,787 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:28,788 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-19 04:35:28,789 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 41 states, 40 states have (on average 1.75) internal successors, (70), 40 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:28,797 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 23 [2021-11-19 04:35:28,798 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:35:28,798 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:35:28,800 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-19 04:35:28,800 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:28,809 INFO L791 eck$LassoCheckResult]: Stem: 21#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2); 13#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~ret2#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 234770789;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 5#L59true assume !(0 == mp_add_~a3~0#1 % 256); 16#L59-1true mp_add_~nb~0#1 := 4; 18#L69true assume !(0 == mp_add_~b3~0#1 % 256); 36#L69-1true mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 23#L80-2true [2021-11-19 04:35:28,810 INFO L793 eck$LassoCheckResult]: Loop: 23#L80-2true assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 33#L83true assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 42#L83-1true assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 8#L89true assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 40#L95-1true assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 17#L99-1true assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 12#L100-1true assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 28#L101-1true assume 3 == mp_add_~i~0#1 % 256;mp_add_~r3~0#1 := mp_add_~partial_sum~0#1; 31#L102-1true mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 23#L80-2true [2021-11-19 04:35:28,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:28,822 INFO L85 PathProgramCache]: Analyzing trace with hash 889938151, now seen corresponding path program 1 times [2021-11-19 04:35:28,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:28,856 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518803749] [2021-11-19 04:35:28,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:28,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:29,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:35:29,091 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:35:29,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:35:29,203 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:35:29,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:29,210 INFO L85 PathProgramCache]: Analyzing trace with hash 318197182, now seen corresponding path program 1 times [2021-11-19 04:35:29,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:29,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168217735] [2021-11-19 04:35:29,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:29,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:29,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:29,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:29,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:29,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168217735] [2021-11-19 04:35:29,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168217735] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:35:29,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:35:29,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 04:35:29,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145188550] [2021-11-19 04:35:29,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:35:29,354 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-19 04:35:29,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:35:29,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:35:29,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:35:29,411 INFO L87 Difference]: Start difference. First operand has 41 states, 40 states have (on average 1.75) internal successors, (70), 40 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:29,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:35:29,693 INFO L93 Difference]: Finished difference Result 64 states and 94 transitions. [2021-11-19 04:35:29,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:35:29,702 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 94 transitions. [2021-11-19 04:35:29,715 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2021-11-19 04:35:29,728 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 56 states and 86 transitions. [2021-11-19 04:35:29,732 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2021-11-19 04:35:29,733 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 56 [2021-11-19 04:35:29,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 86 transitions. [2021-11-19 04:35:29,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:35:29,737 INFO L681 BuchiCegarLoop]: Abstraction has 56 states and 86 transitions. [2021-11-19 04:35:29,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 86 transitions. [2021-11-19 04:35:29,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2021-11-19 04:35:29,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 54 states have (on average 1.5555555555555556) internal successors, (84), 53 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:29,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 84 transitions. [2021-11-19 04:35:29,785 INFO L704 BuchiCegarLoop]: Abstraction has 54 states and 84 transitions. [2021-11-19 04:35:29,786 INFO L587 BuchiCegarLoop]: Abstraction has 54 states and 84 transitions. [2021-11-19 04:35:29,787 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-19 04:35:29,787 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 84 transitions. [2021-11-19 04:35:29,794 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-11-19 04:35:29,794 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:35:29,795 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:35:29,796 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:29,797 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:29,797 INFO L791 eck$LassoCheckResult]: Stem: 136#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2); 127#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~ret2#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 234770789;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 114#L59 assume !(0 == mp_add_~a3~0#1 % 256); 115#L59-1 mp_add_~nb~0#1 := 4; 132#L69 assume !(0 == mp_add_~b3~0#1 % 256); 123#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 138#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 139#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 129#L83-1 [2021-11-19 04:35:29,798 INFO L793 eck$LassoCheckResult]: Loop: 129#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 118#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 119#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 133#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 125#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 126#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 144#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 147#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 159#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 160#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 135#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 141#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 128#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 129#L83-1 [2021-11-19 04:35:29,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:29,801 INFO L85 PathProgramCache]: Analyzing trace with hash 532072804, now seen corresponding path program 1 times [2021-11-19 04:35:29,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:29,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872171175] [2021-11-19 04:35:29,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:29,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:29,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:30,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:30,147 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:30,148 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872171175] [2021-11-19 04:35:30,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872171175] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:35:30,149 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:35:30,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-19 04:35:30,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284782571] [2021-11-19 04:35:30,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:35:30,156 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-19 04:35:30,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:30,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1939143242, now seen corresponding path program 1 times [2021-11-19 04:35:30,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:30,162 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328102771] [2021-11-19 04:35:30,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:30,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:30,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:30,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:30,333 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:30,334 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328102771] [2021-11-19 04:35:30,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328102771] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:35:30,335 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:35:30,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-19 04:35:30,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499530084] [2021-11-19 04:35:30,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:35:30,336 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-19 04:35:30,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:35:30,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 04:35:30,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 04:35:30,337 INFO L87 Difference]: Start difference. First operand 54 states and 84 transitions. cyclomatic complexity: 32 Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:30,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:35:30,818 INFO L93 Difference]: Finished difference Result 149 states and 228 transitions. [2021-11-19 04:35:30,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 04:35:30,819 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 149 states and 228 transitions. [2021-11-19 04:35:30,824 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 108 [2021-11-19 04:35:30,834 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 149 states to 149 states and 228 transitions. [2021-11-19 04:35:30,834 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 149 [2021-11-19 04:35:30,836 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 149 [2021-11-19 04:35:30,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 149 states and 228 transitions. [2021-11-19 04:35:30,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:35:30,838 INFO L681 BuchiCegarLoop]: Abstraction has 149 states and 228 transitions. [2021-11-19 04:35:30,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states and 228 transitions. [2021-11-19 04:35:30,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 78. [2021-11-19 04:35:30,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 78 states have (on average 1.4487179487179487) internal successors, (113), 77 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:30,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 113 transitions. [2021-11-19 04:35:30,865 INFO L704 BuchiCegarLoop]: Abstraction has 78 states and 113 transitions. [2021-11-19 04:35:30,866 INFO L587 BuchiCegarLoop]: Abstraction has 78 states and 113 transitions. [2021-11-19 04:35:30,866 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-19 04:35:30,866 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states and 113 transitions. [2021-11-19 04:35:30,869 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-11-19 04:35:30,871 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:35:30,871 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:35:30,872 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:30,873 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:30,874 INFO L791 eck$LassoCheckResult]: Stem: 354#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2); 343#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~ret2#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 234770789;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 333#L59 assume 0 == mp_add_~a3~0#1 % 256;mp_add_~na~0#1 := mp_add_~na~0#1 % 256 - 1; 335#L61 assume !(0 == mp_add_~a2~0#1 % 256); 336#L59-1 mp_add_~nb~0#1 := 4; 350#L69 assume !(0 == mp_add_~b3~0#1 % 256); 341#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 380#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 381#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 402#L83-1 [2021-11-19 04:35:30,875 INFO L793 eck$LassoCheckResult]: Loop: 402#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 404#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 372#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 373#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 403#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 362#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 363#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 364#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 378#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 368#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 352#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 357#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 358#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 402#L83-1 [2021-11-19 04:35:30,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:30,876 INFO L85 PathProgramCache]: Analyzing trace with hash -384676570, now seen corresponding path program 1 times [2021-11-19 04:35:30,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:30,877 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149206049] [2021-11-19 04:35:30,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:30,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:30,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:30,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:30,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:30,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149206049] [2021-11-19 04:35:30,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149206049] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:35:30,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:35:30,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 04:35:30,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414127106] [2021-11-19 04:35:30,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:35:30,991 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-19 04:35:30,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:30,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1939143242, now seen corresponding path program 2 times [2021-11-19 04:35:30,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:30,992 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441993814] [2021-11-19 04:35:30,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:30,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:31,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:31,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:31,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:31,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441993814] [2021-11-19 04:35:31,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441993814] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:35:31,097 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:35:31,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-19 04:35:31,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750034729] [2021-11-19 04:35:31,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:35:31,098 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-19 04:35:31,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:35:31,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:35:31,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:35:31,100 INFO L87 Difference]: Start difference. First operand 78 states and 113 transitions. cyclomatic complexity: 37 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:31,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:35:31,112 INFO L93 Difference]: Finished difference Result 66 states and 93 transitions. [2021-11-19 04:35:31,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:35:31,115 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 93 transitions. [2021-11-19 04:35:31,118 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-11-19 04:35:31,122 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 66 states and 93 transitions. [2021-11-19 04:35:31,123 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 66 [2021-11-19 04:35:31,125 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 66 [2021-11-19 04:35:31,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 93 transitions. [2021-11-19 04:35:31,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:35:31,132 INFO L681 BuchiCegarLoop]: Abstraction has 66 states and 93 transitions. [2021-11-19 04:35:31,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 93 transitions. [2021-11-19 04:35:31,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2021-11-19 04:35:31,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 66 states have (on average 1.4090909090909092) internal successors, (93), 65 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:31,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 93 transitions. [2021-11-19 04:35:31,140 INFO L704 BuchiCegarLoop]: Abstraction has 66 states and 93 transitions. [2021-11-19 04:35:31,140 INFO L587 BuchiCegarLoop]: Abstraction has 66 states and 93 transitions. [2021-11-19 04:35:31,141 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-19 04:35:31,141 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 93 transitions. [2021-11-19 04:35:31,144 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-11-19 04:35:31,144 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:35:31,145 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:35:31,147 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:31,147 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:31,148 INFO L791 eck$LassoCheckResult]: Stem: 502#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2); 492#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~ret2#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 234770789;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 481#L59 assume !(0 == mp_add_~a3~0#1 % 256); 482#L59-1 mp_add_~nb~0#1 := 4; 497#L69 assume !(0 == mp_add_~b3~0#1 % 256); 488#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 514#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 543#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 542#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 541#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 539#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 537#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 535#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 532#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 484#L95-1 [2021-11-19 04:35:31,156 INFO L793 eck$LassoCheckResult]: Loop: 484#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 525#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 523#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 522#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 520#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 517#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 518#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 530#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 531#L90 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b0~0#1 % 256; 511#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 485#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 486#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 483#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 484#L95-1 [2021-11-19 04:35:31,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:31,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1874592092, now seen corresponding path program 1 times [2021-11-19 04:35:31,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:31,158 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347203274] [2021-11-19 04:35:31,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:31,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:31,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:31,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:31,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:31,402 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347203274] [2021-11-19 04:35:31,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347203274] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:35:31,407 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:35:31,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-19 04:35:31,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122528757] [2021-11-19 04:35:31,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:35:31,408 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-19 04:35:31,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:31,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1213684438, now seen corresponding path program 1 times [2021-11-19 04:35:31,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:31,410 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632486535] [2021-11-19 04:35:31,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:31,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:31,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:31,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:31,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:31,491 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632486535] [2021-11-19 04:35:31,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632486535] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:35:31,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:35:31,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 04:35:31,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98994950] [2021-11-19 04:35:31,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:35:31,493 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-19 04:35:31,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:35:31,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 04:35:31,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 04:35:31,494 INFO L87 Difference]: Start difference. First operand 66 states and 93 transitions. cyclomatic complexity: 29 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:31,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:35:31,725 INFO L93 Difference]: Finished difference Result 91 states and 134 transitions. [2021-11-19 04:35:31,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 04:35:31,727 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 91 states and 134 transitions. [2021-11-19 04:35:31,728 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 64 [2021-11-19 04:35:31,729 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 91 states to 91 states and 134 transitions. [2021-11-19 04:35:31,730 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 91 [2021-11-19 04:35:31,730 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 91 [2021-11-19 04:35:31,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 91 states and 134 transitions. [2021-11-19 04:35:31,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:35:31,731 INFO L681 BuchiCegarLoop]: Abstraction has 91 states and 134 transitions. [2021-11-19 04:35:31,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states and 134 transitions. [2021-11-19 04:35:31,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 83. [2021-11-19 04:35:31,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 83 states have (on average 1.4457831325301205) internal successors, (120), 82 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:31,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 120 transitions. [2021-11-19 04:35:31,747 INFO L704 BuchiCegarLoop]: Abstraction has 83 states and 120 transitions. [2021-11-19 04:35:31,747 INFO L587 BuchiCegarLoop]: Abstraction has 83 states and 120 transitions. [2021-11-19 04:35:31,748 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-19 04:35:31,748 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 83 states and 120 transitions. [2021-11-19 04:35:31,749 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 56 [2021-11-19 04:35:31,750 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:35:31,750 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:35:31,751 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:31,752 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:31,752 INFO L791 eck$LassoCheckResult]: Stem: 667#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2); 658#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~ret2#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 234770789;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 650#L59 assume !(0 == mp_add_~a3~0#1 % 256); 651#L59-1 mp_add_~nb~0#1 := 4; 663#L69 assume !(0 == mp_add_~b3~0#1 % 256); 656#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 684#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 712#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 711#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 710#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 708#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 705#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 701#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 698#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 649#L95-1 [2021-11-19 04:35:31,752 INFO L793 eck$LassoCheckResult]: Loop: 649#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 709#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 706#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 703#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 699#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 689#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 690#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 724#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 725#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 687#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 664#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 653#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 654#L101-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~r3~0#1 := mp_add_~partial_sum~0#1; 676#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 691#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 696#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 720#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 685#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 671#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 659#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 660#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 648#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 649#L95-1 [2021-11-19 04:35:31,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:31,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1874592092, now seen corresponding path program 2 times [2021-11-19 04:35:31,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:31,754 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381978633] [2021-11-19 04:35:31,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:31,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:31,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:31,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:31,935 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:31,935 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381978633] [2021-11-19 04:35:31,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381978633] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:35:31,936 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:35:31,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-19 04:35:31,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052461716] [2021-11-19 04:35:31,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:35:31,937 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-19 04:35:31,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:31,938 INFO L85 PathProgramCache]: Analyzing trace with hash 857385497, now seen corresponding path program 1 times [2021-11-19 04:35:31,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:31,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976668836] [2021-11-19 04:35:31,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:31,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:31,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:31,966 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 04:35:31,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:31,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976668836] [2021-11-19 04:35:31,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976668836] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:35:31,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:35:31,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 04:35:31,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389367073] [2021-11-19 04:35:31,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:35:31,968 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-19 04:35:31,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:35:31,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 04:35:31,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 04:35:31,970 INFO L87 Difference]: Start difference. First operand 83 states and 120 transitions. cyclomatic complexity: 39 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:32,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:35:32,233 INFO L93 Difference]: Finished difference Result 164 states and 234 transitions. [2021-11-19 04:35:32,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 04:35:32,237 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 164 states and 234 transitions. [2021-11-19 04:35:32,240 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 112 [2021-11-19 04:35:32,242 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 164 states to 164 states and 234 transitions. [2021-11-19 04:35:32,242 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 164 [2021-11-19 04:35:32,242 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 164 [2021-11-19 04:35:32,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 164 states and 234 transitions. [2021-11-19 04:35:32,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:35:32,243 INFO L681 BuchiCegarLoop]: Abstraction has 164 states and 234 transitions. [2021-11-19 04:35:32,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states and 234 transitions. [2021-11-19 04:35:32,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 91. [2021-11-19 04:35:32,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 91 states have (on average 1.4065934065934067) internal successors, (128), 90 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:32,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 128 transitions. [2021-11-19 04:35:32,265 INFO L704 BuchiCegarLoop]: Abstraction has 91 states and 128 transitions. [2021-11-19 04:35:32,265 INFO L587 BuchiCegarLoop]: Abstraction has 91 states and 128 transitions. [2021-11-19 04:35:32,265 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-11-19 04:35:32,265 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 91 states and 128 transitions. [2021-11-19 04:35:32,266 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 56 [2021-11-19 04:35:32,268 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:35:32,268 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:35:32,269 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:32,271 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:32,272 INFO L791 eck$LassoCheckResult]: Stem: 928#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2); 917#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~ret2#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 234770789;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 910#L59 assume !(0 == mp_add_~a3~0#1 % 256); 911#L59-1 mp_add_~nb~0#1 := 4; 922#L69 assume 0 == mp_add_~b3~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 914#L71 assume !(0 == mp_add_~b2~0#1 % 256); 915#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 969#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 968#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 967#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 966#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 965#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 964#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 962#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 960#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 909#L95-1 [2021-11-19 04:35:32,272 INFO L793 eck$LassoCheckResult]: Loop: 909#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 923#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 912#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 913#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 935#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 944#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 945#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 919#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 905#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 958#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 956#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 954#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 952#L101-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~r3~0#1 := mp_add_~partial_sum~0#1; 951#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 949#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 950#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 981#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 982#L90 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b0~0#1 % 256; 938#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 906#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 907#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 908#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 909#L95-1 [2021-11-19 04:35:32,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:32,273 INFO L85 PathProgramCache]: Analyzing trace with hash -2095675795, now seen corresponding path program 1 times [2021-11-19 04:35:32,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:32,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388240158] [2021-11-19 04:35:32,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:32,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:32,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:32,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:32,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:32,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388240158] [2021-11-19 04:35:32,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388240158] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:35:32,440 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:35:32,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-19 04:35:32,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842219170] [2021-11-19 04:35:32,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:35:32,441 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-19 04:35:32,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:32,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1043280079, now seen corresponding path program 1 times [2021-11-19 04:35:32,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:32,443 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343894650] [2021-11-19 04:35:32,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:32,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:32,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:32,467 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 04:35:32,468 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:32,468 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343894650] [2021-11-19 04:35:32,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343894650] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:35:32,469 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:35:32,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 04:35:32,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028811717] [2021-11-19 04:35:32,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:35:32,470 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-19 04:35:32,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:35:32,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 04:35:32,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 04:35:32,471 INFO L87 Difference]: Start difference. First operand 91 states and 128 transitions. cyclomatic complexity: 39 Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:32,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:35:32,959 INFO L93 Difference]: Finished difference Result 245 states and 348 transitions. [2021-11-19 04:35:32,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 04:35:32,961 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 245 states and 348 transitions. [2021-11-19 04:35:32,965 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 168 [2021-11-19 04:35:32,968 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 245 states to 245 states and 348 transitions. [2021-11-19 04:35:32,969 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 245 [2021-11-19 04:35:32,969 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 245 [2021-11-19 04:35:32,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 245 states and 348 transitions. [2021-11-19 04:35:32,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:35:32,971 INFO L681 BuchiCegarLoop]: Abstraction has 245 states and 348 transitions. [2021-11-19 04:35:32,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states and 348 transitions. [2021-11-19 04:35:32,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 91. [2021-11-19 04:35:32,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 91 states have (on average 1.4065934065934067) internal successors, (128), 90 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:32,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 128 transitions. [2021-11-19 04:35:32,981 INFO L704 BuchiCegarLoop]: Abstraction has 91 states and 128 transitions. [2021-11-19 04:35:32,981 INFO L587 BuchiCegarLoop]: Abstraction has 91 states and 128 transitions. [2021-11-19 04:35:32,981 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-11-19 04:35:32,981 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 91 states and 128 transitions. [2021-11-19 04:35:32,982 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 56 [2021-11-19 04:35:32,983 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:35:32,983 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:35:32,984 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:32,984 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:32,985 INFO L791 eck$LassoCheckResult]: Stem: 1274#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2); 1264#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~ret2#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 234770789;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 1257#L59 assume !(0 == mp_add_~a3~0#1 % 256); 1258#L59-1 mp_add_~nb~0#1 := 4; 1269#L69 assume 0 == mp_add_~b3~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 1261#L71 assume 0 == mp_add_~b2~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 1263#L73 assume 0 == mp_add_~b1~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 1289#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 1316#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 1315#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 1314#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 1313#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 1312#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 1311#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 1309#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 1307#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 1256#L95-1 [2021-11-19 04:35:32,985 INFO L793 eck$LassoCheckResult]: Loop: 1256#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 1270#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 1259#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 1260#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 1298#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 1291#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 1292#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 1266#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 1337#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 1305#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 1303#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 1301#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 1300#L101-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~r3~0#1 := mp_add_~partial_sum~0#1; 1299#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 1296#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 1297#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 1328#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 1329#L90 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b0~0#1 % 256; 1284#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 1253#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 1254#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 1255#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 1256#L95-1 [2021-11-19 04:35:32,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:32,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1829134745, now seen corresponding path program 1 times [2021-11-19 04:35:32,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:32,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232649554] [2021-11-19 04:35:32,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:32,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:33,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:33,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:33,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:33,054 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232649554] [2021-11-19 04:35:33,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232649554] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:35:33,055 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:35:33,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-19 04:35:33,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777357970] [2021-11-19 04:35:33,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:35:33,056 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-19 04:35:33,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:33,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1043280079, now seen corresponding path program 2 times [2021-11-19 04:35:33,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:33,057 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626534566] [2021-11-19 04:35:33,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:33,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:33,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:33,086 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 04:35:33,087 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:33,087 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626534566] [2021-11-19 04:35:33,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626534566] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:35:33,088 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:35:33,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 04:35:33,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295512478] [2021-11-19 04:35:33,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:35:33,089 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-19 04:35:33,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:35:33,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 04:35:33,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 04:35:33,090 INFO L87 Difference]: Start difference. First operand 91 states and 128 transitions. cyclomatic complexity: 39 Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:33,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:35:33,252 INFO L93 Difference]: Finished difference Result 219 states and 318 transitions. [2021-11-19 04:35:33,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 04:35:33,253 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 219 states and 318 transitions. [2021-11-19 04:35:33,256 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 177 [2021-11-19 04:35:33,259 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 219 states to 219 states and 318 transitions. [2021-11-19 04:35:33,260 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 219 [2021-11-19 04:35:33,261 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 219 [2021-11-19 04:35:33,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 219 states and 318 transitions. [2021-11-19 04:35:33,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:35:33,262 INFO L681 BuchiCegarLoop]: Abstraction has 219 states and 318 transitions. [2021-11-19 04:35:33,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states and 318 transitions. [2021-11-19 04:35:33,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 149. [2021-11-19 04:35:33,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 149 states have (on average 1.5033557046979866) internal successors, (224), 148 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:33,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 224 transitions. [2021-11-19 04:35:33,272 INFO L704 BuchiCegarLoop]: Abstraction has 149 states and 224 transitions. [2021-11-19 04:35:33,273 INFO L587 BuchiCegarLoop]: Abstraction has 149 states and 224 transitions. [2021-11-19 04:35:33,273 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-11-19 04:35:33,273 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 149 states and 224 transitions. [2021-11-19 04:35:33,275 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 113 [2021-11-19 04:35:33,275 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:35:33,275 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:35:33,276 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:33,277 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:33,277 INFO L791 eck$LassoCheckResult]: Stem: 1599#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2); 1589#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~ret2#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 234770789;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 1578#L59 assume !(0 == mp_add_~a3~0#1 % 256); 1579#L59-1 mp_add_~nb~0#1 := 4; 1594#L69 assume !(0 == mp_add_~b3~0#1 % 256); 1587#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 1722#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 1723#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 1596#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 1597#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 1602#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 1603#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 1697#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 1691#L90 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b0~0#1 % 256; 1685#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 1682#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 1678#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 1641#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 1642#L95-1 [2021-11-19 04:35:33,298 INFO L793 eck$LassoCheckResult]: Loop: 1642#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 1680#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 1715#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 1706#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 1703#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 1700#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 1695#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 1690#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 1684#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 1681#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 1677#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 1676#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 1675#L101-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~r3~0#1 := mp_add_~partial_sum~0#1; 1673#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 1670#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 1667#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 1668#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 1687#L90 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b0~0#1 % 256; 1654#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 1650#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 1645#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 1643#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 1642#L95-1 [2021-11-19 04:35:33,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:33,299 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 1 times [2021-11-19 04:35:33,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:33,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118265741] [2021-11-19 04:35:33,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:33,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:33,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:35:33,337 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:35:33,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:35:33,380 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:35:33,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:33,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1043280079, now seen corresponding path program 3 times [2021-11-19 04:35:33,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:33,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941371754] [2021-11-19 04:35:33,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:33,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:33,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:33,425 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 04:35:33,426 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:33,426 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941371754] [2021-11-19 04:35:33,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941371754] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:35:33,427 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:35:33,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 04:35:33,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271458553] [2021-11-19 04:35:33,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:35:33,428 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-19 04:35:33,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:35:33,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:35:33,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:35:33,435 INFO L87 Difference]: Start difference. First operand 149 states and 224 transitions. cyclomatic complexity: 77 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:33,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:35:33,538 INFO L93 Difference]: Finished difference Result 194 states and 283 transitions. [2021-11-19 04:35:33,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:35:33,544 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 194 states and 283 transitions. [2021-11-19 04:35:33,553 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 158 [2021-11-19 04:35:33,558 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 194 states to 194 states and 283 transitions. [2021-11-19 04:35:33,559 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 194 [2021-11-19 04:35:33,560 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 194 [2021-11-19 04:35:33,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 194 states and 283 transitions. [2021-11-19 04:35:33,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:35:33,561 INFO L681 BuchiCegarLoop]: Abstraction has 194 states and 283 transitions. [2021-11-19 04:35:33,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states and 283 transitions. [2021-11-19 04:35:33,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 191. [2021-11-19 04:35:33,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 191 states have (on average 1.4659685863874345) internal successors, (280), 190 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:33,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 280 transitions. [2021-11-19 04:35:33,591 INFO L704 BuchiCegarLoop]: Abstraction has 191 states and 280 transitions. [2021-11-19 04:35:33,591 INFO L587 BuchiCegarLoop]: Abstraction has 191 states and 280 transitions. [2021-11-19 04:35:33,592 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-11-19 04:35:33,592 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 191 states and 280 transitions. [2021-11-19 04:35:33,594 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 155 [2021-11-19 04:35:33,599 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:35:33,599 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:35:33,601 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:33,602 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:33,605 INFO L791 eck$LassoCheckResult]: Stem: 1948#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2); 1938#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~ret2#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 234770789;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 1925#L59 assume !(0 == mp_add_~a3~0#1 % 256); 1926#L59-1 mp_add_~nb~0#1 := 4; 1943#L69 assume !(0 == mp_add_~b3~0#1 % 256); 1934#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 1967#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 2009#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 2008#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 2007#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 2005#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 2003#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 2001#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 1995#L90 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b0~0#1 % 256; 1998#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 1996#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 1992#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 1993#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 2012#L95-1 [2021-11-19 04:35:33,605 INFO L793 eck$LassoCheckResult]: Loop: 2012#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 2011#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 2010#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 1991#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 1985#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 1976#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 1964#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 1965#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 2069#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 1972#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 1973#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 2016#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 1957#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 1958#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 1978#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 1979#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 2049#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 2050#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 2115#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 2114#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 2073#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 2072#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 2012#L95-1 [2021-11-19 04:35:33,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:33,606 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 2 times [2021-11-19 04:35:33,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:33,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542867906] [2021-11-19 04:35:33,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:33,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:33,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:35:33,645 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:35:33,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:35:33,681 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:35:33,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:33,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1165423065, now seen corresponding path program 1 times [2021-11-19 04:35:33,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:33,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969095559] [2021-11-19 04:35:33,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:33,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:33,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:33,772 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:33,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:33,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969095559] [2021-11-19 04:35:33,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969095559] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:35:33,773 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:35:33,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-19 04:35:33,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970886995] [2021-11-19 04:35:33,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:35:33,774 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-19 04:35:33,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:35:33,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 04:35:33,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 04:35:33,776 INFO L87 Difference]: Start difference. First operand 191 states and 280 transitions. cyclomatic complexity: 91 Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:34,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:35:34,113 INFO L93 Difference]: Finished difference Result 367 states and 532 transitions. [2021-11-19 04:35:34,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 04:35:34,114 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 367 states and 532 transitions. [2021-11-19 04:35:34,119 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 311 [2021-11-19 04:35:34,123 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 367 states to 367 states and 532 transitions. [2021-11-19 04:35:34,123 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 367 [2021-11-19 04:35:34,124 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 367 [2021-11-19 04:35:34,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 367 states and 532 transitions. [2021-11-19 04:35:34,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:35:34,125 INFO L681 BuchiCegarLoop]: Abstraction has 367 states and 532 transitions. [2021-11-19 04:35:34,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states and 532 transitions. [2021-11-19 04:35:34,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 288. [2021-11-19 04:35:34,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 288 states have (on average 1.4548611111111112) internal successors, (419), 287 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:34,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 419 transitions. [2021-11-19 04:35:34,137 INFO L704 BuchiCegarLoop]: Abstraction has 288 states and 419 transitions. [2021-11-19 04:35:34,137 INFO L587 BuchiCegarLoop]: Abstraction has 288 states and 419 transitions. [2021-11-19 04:35:34,137 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-11-19 04:35:34,137 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 288 states and 419 transitions. [2021-11-19 04:35:34,140 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 249 [2021-11-19 04:35:34,140 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:35:34,140 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:35:34,142 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:34,142 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:34,142 INFO L791 eck$LassoCheckResult]: Stem: 2516#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2); 2507#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~ret2#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 234770789;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 2494#L59 assume !(0 == mp_add_~a3~0#1 % 256); 2495#L59-1 mp_add_~nb~0#1 := 4; 2512#L69 assume !(0 == mp_add_~b3~0#1 % 256); 2503#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 2532#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 2582#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 2581#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 2580#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 2578#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 2576#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 2574#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 2568#L90 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b0~0#1 % 256; 2571#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 2569#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 2565#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 2566#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 2595#L95-1 [2021-11-19 04:35:34,143 INFO L793 eck$LassoCheckResult]: Loop: 2595#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 2596#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 2591#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 2592#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 2587#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 2588#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 2583#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 2584#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 2722#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 2721#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 2719#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 2713#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 2710#L101-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~r3~0#1 := mp_add_~partial_sum~0#1; 2545#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 2542#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 2543#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 2662#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 2533#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 2520#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 2521#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 2715#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 2714#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 2595#L95-1 [2021-11-19 04:35:34,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:34,143 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 3 times [2021-11-19 04:35:34,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:34,144 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137325871] [2021-11-19 04:35:34,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:34,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:34,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:35:34,169 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:35:34,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:35:34,203 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:35:34,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:34,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1115550935, now seen corresponding path program 1 times [2021-11-19 04:35:34,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:34,205 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120217874] [2021-11-19 04:35:34,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:34,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:34,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:34,244 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-19 04:35:34,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:34,245 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120217874] [2021-11-19 04:35:34,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120217874] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:35:34,245 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:35:34,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 04:35:34,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5554559] [2021-11-19 04:35:34,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:35:34,247 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-19 04:35:34,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:35:34,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:35:34,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:35:34,248 INFO L87 Difference]: Start difference. First operand 288 states and 419 transitions. cyclomatic complexity: 134 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:34,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:35:34,358 INFO L93 Difference]: Finished difference Result 340 states and 495 transitions. [2021-11-19 04:35:34,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:35:34,360 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 340 states and 495 transitions. [2021-11-19 04:35:34,364 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 301 [2021-11-19 04:35:34,367 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 340 states to 340 states and 495 transitions. [2021-11-19 04:35:34,368 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 340 [2021-11-19 04:35:34,369 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 340 [2021-11-19 04:35:34,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 340 states and 495 transitions. [2021-11-19 04:35:34,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:35:34,370 INFO L681 BuchiCegarLoop]: Abstraction has 340 states and 495 transitions. [2021-11-19 04:35:34,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states and 495 transitions. [2021-11-19 04:35:34,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 334. [2021-11-19 04:35:34,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 334 states have (on average 1.464071856287425) internal successors, (489), 333 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:34,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 489 transitions. [2021-11-19 04:35:34,381 INFO L704 BuchiCegarLoop]: Abstraction has 334 states and 489 transitions. [2021-11-19 04:35:34,382 INFO L587 BuchiCegarLoop]: Abstraction has 334 states and 489 transitions. [2021-11-19 04:35:34,382 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-11-19 04:35:34,382 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 334 states and 489 transitions. [2021-11-19 04:35:34,385 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 295 [2021-11-19 04:35:34,385 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:35:34,385 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:35:34,387 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:34,387 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:34,388 INFO L791 eck$LassoCheckResult]: Stem: 3152#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2); 3141#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~ret2#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 234770789;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 3134#L59 assume !(0 == mp_add_~a3~0#1 % 256); 3135#L59-1 mp_add_~nb~0#1 := 4; 3146#L69 assume !(0 == mp_add_~b3~0#1 % 256); 3139#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 3173#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 3212#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 3211#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 3210#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 3208#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 3206#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 3204#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 3198#L90 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b0~0#1 % 256; 3201#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 3199#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 3195#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 3196#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 3331#L95-1 [2021-11-19 04:35:34,388 INFO L793 eck$LassoCheckResult]: Loop: 3331#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 3238#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 3239#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 3235#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 3231#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 3232#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 3285#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 3286#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 3402#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 3387#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 3233#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 3234#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 3223#L101-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~r3~0#1 := mp_add_~partial_sum~0#1; 3224#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 3179#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 3180#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 3308#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 3309#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 3382#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 3380#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 3378#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 3376#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 3331#L95-1 [2021-11-19 04:35:34,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:34,389 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 4 times [2021-11-19 04:35:34,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:34,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118564470] [2021-11-19 04:35:34,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:34,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:34,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:35:34,425 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:35:34,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:35:34,495 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:35:34,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:34,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1816615513, now seen corresponding path program 1 times [2021-11-19 04:35:34,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:34,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211033479] [2021-11-19 04:35:34,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:34,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:34,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:34,671 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:34,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:34,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211033479] [2021-11-19 04:35:34,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211033479] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:35:34,683 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888698293] [2021-11-19 04:35:34,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:34,684 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:35:34,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:34,691 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:35:34,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-19 04:35:34,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:34,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 04:35:34,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:35:35,170 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:35,171 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:35:35,270 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:35,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888698293] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:35:35,271 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 04:35:35,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 7 [2021-11-19 04:35:35,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889071853] [2021-11-19 04:35:35,272 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 04:35:35,272 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-19 04:35:35,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:35:35,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 04:35:35,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-11-19 04:35:35,274 INFO L87 Difference]: Start difference. First operand 334 states and 489 transitions. cyclomatic complexity: 158 Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:35,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:35:35,746 INFO L93 Difference]: Finished difference Result 448 states and 627 transitions. [2021-11-19 04:35:35,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 04:35:35,747 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 448 states and 627 transitions. [2021-11-19 04:35:35,752 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 392 [2021-11-19 04:35:35,760 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 448 states to 448 states and 627 transitions. [2021-11-19 04:35:35,760 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 448 [2021-11-19 04:35:35,761 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 448 [2021-11-19 04:35:35,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 448 states and 627 transitions. [2021-11-19 04:35:35,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:35:35,763 INFO L681 BuchiCegarLoop]: Abstraction has 448 states and 627 transitions. [2021-11-19 04:35:35,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states and 627 transitions. [2021-11-19 04:35:35,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 347. [2021-11-19 04:35:35,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 347 states have (on average 1.440922190201729) internal successors, (500), 346 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:35,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 500 transitions. [2021-11-19 04:35:35,775 INFO L704 BuchiCegarLoop]: Abstraction has 347 states and 500 transitions. [2021-11-19 04:35:35,775 INFO L587 BuchiCegarLoop]: Abstraction has 347 states and 500 transitions. [2021-11-19 04:35:35,776 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-11-19 04:35:35,776 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 347 states and 500 transitions. [2021-11-19 04:35:35,779 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 299 [2021-11-19 04:35:35,779 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:35:35,779 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:35:35,781 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:35,781 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:35,783 INFO L791 eck$LassoCheckResult]: Stem: 4072#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2); 4062#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~ret2#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 234770789;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 4051#L59 assume !(0 == mp_add_~a3~0#1 % 256); 4052#L59-1 mp_add_~nb~0#1 := 4; 4067#L69 assume !(0 == mp_add_~b3~0#1 % 256); 4058#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 4092#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 4179#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 4178#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 4177#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 4175#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 4173#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 4171#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 4165#L90 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b0~0#1 % 256; 4168#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 4166#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 4162#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 4163#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 4327#L95-1 [2021-11-19 04:35:35,783 INFO L793 eck$LassoCheckResult]: Loop: 4327#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 4210#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 4325#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 4081#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 4082#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 4150#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 4354#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 4070#L84 assume !(0 == mp_add_~i~0#1 % 256); 4071#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 4352#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 4349#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 4346#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 4342#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 4341#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 4068#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 4069#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 4130#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 4142#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 4143#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 4236#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 4232#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 4233#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 4376#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 4373#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 4370#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 4368#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 4327#L95-1 [2021-11-19 04:35:35,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:35,784 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 5 times [2021-11-19 04:35:35,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:35,785 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089224745] [2021-11-19 04:35:35,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:35,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:35,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:35:35,828 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:35:35,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:35:35,878 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:35:35,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:35,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1570645289, now seen corresponding path program 1 times [2021-11-19 04:35:35,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:35,882 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611824696] [2021-11-19 04:35:35,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:35,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:35,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:35,959 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:35,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:35,960 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611824696] [2021-11-19 04:35:35,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611824696] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:35:35,960 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:35:35,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-19 04:35:35,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377477822] [2021-11-19 04:35:35,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:35:35,962 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-19 04:35:35,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:35:35,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 04:35:35,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 04:35:35,963 INFO L87 Difference]: Start difference. First operand 347 states and 500 transitions. cyclomatic complexity: 156 Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:36,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:35:36,206 INFO L93 Difference]: Finished difference Result 515 states and 722 transitions. [2021-11-19 04:35:36,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 04:35:36,208 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 515 states and 722 transitions. [2021-11-19 04:35:36,214 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 461 [2021-11-19 04:35:36,221 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 515 states to 515 states and 722 transitions. [2021-11-19 04:35:36,221 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 515 [2021-11-19 04:35:36,222 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 515 [2021-11-19 04:35:36,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 515 states and 722 transitions. [2021-11-19 04:35:36,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:35:36,224 INFO L681 BuchiCegarLoop]: Abstraction has 515 states and 722 transitions. [2021-11-19 04:35:36,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states and 722 transitions. [2021-11-19 04:35:36,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 396. [2021-11-19 04:35:36,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 396 states have (on average 1.446969696969697) internal successors, (573), 395 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:36,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 573 transitions. [2021-11-19 04:35:36,240 INFO L704 BuchiCegarLoop]: Abstraction has 396 states and 573 transitions. [2021-11-19 04:35:36,240 INFO L587 BuchiCegarLoop]: Abstraction has 396 states and 573 transitions. [2021-11-19 04:35:36,240 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-11-19 04:35:36,240 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 396 states and 573 transitions. [2021-11-19 04:35:36,244 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 360 [2021-11-19 04:35:36,244 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:35:36,244 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:35:36,251 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:36,252 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:36,252 INFO L791 eck$LassoCheckResult]: Stem: 4943#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2); 4934#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~ret2#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 234770789;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 4923#L59 assume !(0 == mp_add_~a3~0#1 % 256); 4924#L59-1 mp_add_~nb~0#1 := 4; 4939#L69 assume !(0 == mp_add_~b3~0#1 % 256); 4930#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 4964#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 5004#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 5003#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 5002#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 5000#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 4998#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 4996#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 4990#L90 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b0~0#1 % 256; 4993#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 4991#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 4987#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 4988#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 5287#L95-1 [2021-11-19 04:35:36,252 INFO L793 eck$LassoCheckResult]: Loop: 5287#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 5052#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 5286#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 5013#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 5014#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 4978#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 4979#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 4961#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 5312#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 5311#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 4940#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 4932#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 4933#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 4953#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 5012#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 5218#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 5210#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 5204#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 5185#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 5180#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 5173#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 5041#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 5040#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 4970#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 4971#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 5114#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 5078#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 5294#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 5292#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 5290#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 5288#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 5287#L95-1 [2021-11-19 04:35:36,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:36,253 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 6 times [2021-11-19 04:35:36,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:36,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728805743] [2021-11-19 04:35:36,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:36,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:36,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:35:36,272 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:35:36,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:35:36,294 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:35:36,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:36,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1557912240, now seen corresponding path program 2 times [2021-11-19 04:35:36,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:36,296 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167742785] [2021-11-19 04:35:36,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:36,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:36,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:36,345 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:36,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:36,346 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167742785] [2021-11-19 04:35:36,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167742785] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:35:36,347 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:35:36,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-19 04:35:36,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461950291] [2021-11-19 04:35:36,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:35:36,348 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-19 04:35:36,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:35:36,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 04:35:36,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 04:35:36,350 INFO L87 Difference]: Start difference. First operand 396 states and 573 transitions. cyclomatic complexity: 179 Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:36,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:35:36,437 INFO L93 Difference]: Finished difference Result 463 states and 650 transitions. [2021-11-19 04:35:36,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 04:35:36,439 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 463 states and 650 transitions. [2021-11-19 04:35:36,446 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 427 [2021-11-19 04:35:36,453 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 463 states to 463 states and 650 transitions. [2021-11-19 04:35:36,453 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 463 [2021-11-19 04:35:36,454 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 463 [2021-11-19 04:35:36,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 463 states and 650 transitions. [2021-11-19 04:35:36,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:35:36,456 INFO L681 BuchiCegarLoop]: Abstraction has 463 states and 650 transitions. [2021-11-19 04:35:36,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states and 650 transitions. [2021-11-19 04:35:36,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 383. [2021-11-19 04:35:36,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 383 states have (on average 1.4255874673629243) internal successors, (546), 382 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:36,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 546 transitions. [2021-11-19 04:35:36,471 INFO L704 BuchiCegarLoop]: Abstraction has 383 states and 546 transitions. [2021-11-19 04:35:36,472 INFO L587 BuchiCegarLoop]: Abstraction has 383 states and 546 transitions. [2021-11-19 04:35:36,472 INFO L425 BuchiCegarLoop]: ======== Iteration 14============ [2021-11-19 04:35:36,472 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 383 states and 546 transitions. [2021-11-19 04:35:36,475 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 347 [2021-11-19 04:35:36,475 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:35:36,476 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:35:36,478 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:36,478 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:36,478 INFO L791 eck$LassoCheckResult]: Stem: 5812#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2); 5802#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~ret2#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 234770789;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 5789#L59 assume !(0 == mp_add_~a3~0#1 % 256); 5790#L59-1 mp_add_~nb~0#1 := 4; 5807#L69 assume !(0 == mp_add_~b3~0#1 % 256); 5798#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 5830#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 6155#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 5810#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 5811#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 5816#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 5817#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 6075#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 6076#L90 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b0~0#1 % 256; 6064#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 6065#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 6045#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 6046#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 6012#L95-1 [2021-11-19 04:35:36,479 INFO L793 eck$LassoCheckResult]: Loop: 6012#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 5958#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 6009#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 6008#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 6007#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 6006#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 6004#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 6005#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 6157#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 6152#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 5909#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 5868#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 5900#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 5891#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 5859#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 5860#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 5835#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 5836#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 5936#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 5931#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 5850#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 5848#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 5846#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 5844#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 5845#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 5880#L84 assume !(0 == mp_add_~i~0#1 % 256); 5947#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 5943#L85-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a2~0#1 % 256; 5944#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 6041#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 6040#L90 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b0~0#1 % 256; 5925#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 6060#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 6061#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 6029#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 6012#L95-1 [2021-11-19 04:35:36,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:36,479 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 7 times [2021-11-19 04:35:36,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:36,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194037178] [2021-11-19 04:35:36,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:36,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:36,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:35:36,509 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:35:36,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:35:36,555 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:35:36,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:36,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1270880006, now seen corresponding path program 1 times [2021-11-19 04:35:36,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:36,560 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848562800] [2021-11-19 04:35:36,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:36,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:36,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:36,609 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-19 04:35:36,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:36,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848562800] [2021-11-19 04:35:36,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848562800] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:35:36,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:35:36,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 04:35:36,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884931909] [2021-11-19 04:35:36,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:35:36,612 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-19 04:35:36,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:35:36,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:35:36,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:35:36,614 INFO L87 Difference]: Start difference. First operand 383 states and 546 transitions. cyclomatic complexity: 165 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:36,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:35:36,712 INFO L93 Difference]: Finished difference Result 386 states and 527 transitions. [2021-11-19 04:35:36,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:35:36,713 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 386 states and 527 transitions. [2021-11-19 04:35:36,718 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 350 [2021-11-19 04:35:36,724 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 386 states to 386 states and 527 transitions. [2021-11-19 04:35:36,725 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 386 [2021-11-19 04:35:36,725 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 386 [2021-11-19 04:35:36,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 386 states and 527 transitions. [2021-11-19 04:35:36,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:35:36,727 INFO L681 BuchiCegarLoop]: Abstraction has 386 states and 527 transitions. [2021-11-19 04:35:36,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states and 527 transitions. [2021-11-19 04:35:36,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 357. [2021-11-19 04:35:36,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 357 states have (on average 1.3753501400560224) internal successors, (491), 356 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:36,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 491 transitions. [2021-11-19 04:35:36,739 INFO L704 BuchiCegarLoop]: Abstraction has 357 states and 491 transitions. [2021-11-19 04:35:36,739 INFO L587 BuchiCegarLoop]: Abstraction has 357 states and 491 transitions. [2021-11-19 04:35:36,739 INFO L425 BuchiCegarLoop]: ======== Iteration 15============ [2021-11-19 04:35:36,739 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 357 states and 491 transitions. [2021-11-19 04:35:36,742 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 321 [2021-11-19 04:35:36,743 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:35:36,743 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:35:36,744 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:36,744 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:36,746 INFO L791 eck$LassoCheckResult]: Stem: 6585#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2); 6576#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~ret2#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 234770789;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 6564#L59 assume !(0 == mp_add_~a3~0#1 % 256); 6565#L59-1 mp_add_~nb~0#1 := 4; 6581#L69 assume !(0 == mp_add_~b3~0#1 % 256); 6572#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 6842#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 6843#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 6834#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 6835#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 6828#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 6829#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 6810#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 6809#L90 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b0~0#1 % 256; 6807#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 6805#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 6801#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 6799#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 6797#L95-1 [2021-11-19 04:35:36,747 INFO L793 eck$LassoCheckResult]: Loop: 6797#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 6796#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 6795#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 6794#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 6793#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 6792#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 6790#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 6791#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 6861#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 6857#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 6674#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 6643#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 6659#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 6660#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 6634#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 6600#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 6601#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 6568#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 6569#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 6678#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 6624#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 6625#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 6637#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 6635#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 6636#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 6695#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 6746#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 6823#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 6822#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 6819#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 6804#L90 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b0~0#1 % 256; 6814#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 6812#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 6802#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 6798#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 6797#L95-1 [2021-11-19 04:35:36,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:36,747 INFO L85 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 8 times [2021-11-19 04:35:36,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:36,748 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376390280] [2021-11-19 04:35:36,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:36,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:36,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:35:36,771 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:35:36,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:35:36,814 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:35:36,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:36,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1327903996, now seen corresponding path program 1 times [2021-11-19 04:35:36,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:36,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723642917] [2021-11-19 04:35:36,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:36,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:36,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:36,915 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 04:35:36,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:36,916 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723642917] [2021-11-19 04:35:36,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723642917] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:35:36,917 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405667318] [2021-11-19 04:35:36,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:36,917 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:35:36,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:36,923 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:35:36,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-19 04:35:36,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:36,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 04:35:36,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:35:37,359 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 20 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 04:35:37,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:35:37,569 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 20 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 04:35:37,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [405667318] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:35:37,570 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 04:35:37,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2021-11-19 04:35:37,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067781406] [2021-11-19 04:35:37,571 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 04:35:37,572 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-19 04:35:37,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:35:37,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-19 04:35:37,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-11-19 04:35:37,574 INFO L87 Difference]: Start difference. First operand 357 states and 491 transitions. cyclomatic complexity: 136 Second operand has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 11 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:39,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:35:39,893 INFO L93 Difference]: Finished difference Result 526 states and 669 transitions. [2021-11-19 04:35:39,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-19 04:35:39,895 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 526 states and 669 transitions. [2021-11-19 04:35:39,903 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 439 [2021-11-19 04:35:39,911 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 526 states to 526 states and 669 transitions. [2021-11-19 04:35:39,912 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 526 [2021-11-19 04:35:39,913 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 526 [2021-11-19 04:35:39,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 526 states and 669 transitions. [2021-11-19 04:35:39,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:35:39,915 INFO L681 BuchiCegarLoop]: Abstraction has 526 states and 669 transitions. [2021-11-19 04:35:39,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states and 669 transitions. [2021-11-19 04:35:39,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 317. [2021-11-19 04:35:39,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 317 states have (on average 1.2996845425867507) internal successors, (412), 316 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:39,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 412 transitions. [2021-11-19 04:35:39,930 INFO L704 BuchiCegarLoop]: Abstraction has 317 states and 412 transitions. [2021-11-19 04:35:39,931 INFO L587 BuchiCegarLoop]: Abstraction has 317 states and 412 transitions. [2021-11-19 04:35:39,931 INFO L425 BuchiCegarLoop]: ======== Iteration 16============ [2021-11-19 04:35:39,931 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 317 states and 412 transitions. [2021-11-19 04:35:39,934 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 267 [2021-11-19 04:35:39,934 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:35:39,935 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:35:39,936 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:39,936 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:39,937 INFO L791 eck$LassoCheckResult]: Stem: 7775#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2); 7764#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~ret2#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 234770789;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 7757#L59 assume !(0 == mp_add_~a3~0#1 % 256); 7758#L59-1 mp_add_~nb~0#1 := 4; 7769#L69 assume 0 == mp_add_~b3~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 7761#L71 assume 0 == mp_add_~b2~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 7763#L73 assume 0 == mp_add_~b1~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 7794#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 7795#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 7956#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 7957#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 7948#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 7949#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 7938#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 7939#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 7977#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 7929#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 7976#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 7974#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 7970#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 7971#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 7776#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 7777#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 7772#L84 assume !(0 == mp_add_~i~0#1 % 256); 7773#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 7778#L85-1 [2021-11-19 04:35:39,937 INFO L793 eck$LassoCheckResult]: Loop: 7778#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 7765#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 7766#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 7799#L90 assume !(0 == mp_add_~i~0#1 % 256); 8050#L90-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b1~0#1 % 256; 7883#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 8047#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 8041#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 8040#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 7870#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 7869#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 7868#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 7864#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 7853#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 7854#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 7859#L84 assume !(0 == mp_add_~i~0#1 % 256); 7860#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 7851#L85-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a2~0#1 % 256; 7852#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 7845#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 7844#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 7978#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 7975#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 7972#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 7973#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 7784#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 7785#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 8030#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 8031#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 8034#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 8022#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 7770#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 7771#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 8061#L101-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~r3~0#1 := mp_add_~partial_sum~0#1; 7783#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 7827#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 7828#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 7966#L84 assume !(0 == mp_add_~i~0#1 % 256); 7964#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 7778#L85-1 [2021-11-19 04:35:39,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:39,938 INFO L85 PathProgramCache]: Analyzing trace with hash -311032260, now seen corresponding path program 1 times [2021-11-19 04:35:39,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:39,939 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967493562] [2021-11-19 04:35:39,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:39,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:39,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:40,068 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:40,069 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:40,069 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967493562] [2021-11-19 04:35:40,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967493562] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:35:40,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:35:40,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-19 04:35:40,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357138542] [2021-11-19 04:35:40,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:35:40,071 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-19 04:35:40,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:40,072 INFO L85 PathProgramCache]: Analyzing trace with hash -976224508, now seen corresponding path program 1 times [2021-11-19 04:35:40,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:40,072 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790370128] [2021-11-19 04:35:40,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:40,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:40,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:40,162 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 4 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:40,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:40,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790370128] [2021-11-19 04:35:40,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790370128] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:35:40,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1940122924] [2021-11-19 04:35:40,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:40,164 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:35:40,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:40,201 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:35:40,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-19 04:35:40,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:40,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 04:35:40,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:35:40,405 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-19 04:35:40,406 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 04:35:40,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1940122924] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:35:40,407 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:35:40,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-11-19 04:35:40,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544815789] [2021-11-19 04:35:40,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:35:40,408 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-19 04:35:40,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:35:40,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 04:35:40,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-19 04:35:40,409 INFO L87 Difference]: Start difference. First operand 317 states and 412 transitions. cyclomatic complexity: 97 Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:41,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:35:41,271 INFO L93 Difference]: Finished difference Result 1211 states and 1578 transitions. [2021-11-19 04:35:41,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 04:35:41,272 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1211 states and 1578 transitions. [2021-11-19 04:35:41,288 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 1068 [2021-11-19 04:35:41,301 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1211 states to 1211 states and 1578 transitions. [2021-11-19 04:35:41,301 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1211 [2021-11-19 04:35:41,304 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1211 [2021-11-19 04:35:41,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1211 states and 1578 transitions. [2021-11-19 04:35:41,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:35:41,307 INFO L681 BuchiCegarLoop]: Abstraction has 1211 states and 1578 transitions. [2021-11-19 04:35:41,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states and 1578 transitions. [2021-11-19 04:35:41,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 308. [2021-11-19 04:35:41,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 308 states have (on average 1.3051948051948052) internal successors, (402), 307 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:41,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 402 transitions. [2021-11-19 04:35:41,322 INFO L704 BuchiCegarLoop]: Abstraction has 308 states and 402 transitions. [2021-11-19 04:35:41,322 INFO L587 BuchiCegarLoop]: Abstraction has 308 states and 402 transitions. [2021-11-19 04:35:41,323 INFO L425 BuchiCegarLoop]: ======== Iteration 17============ [2021-11-19 04:35:41,323 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 308 states and 402 transitions. [2021-11-19 04:35:41,325 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 267 [2021-11-19 04:35:41,326 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:35:41,326 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:35:41,327 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:41,327 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:41,328 INFO L791 eck$LassoCheckResult]: Stem: 9440#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2); 9431#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~ret2#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 234770789;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 9418#L59 assume !(0 == mp_add_~a3~0#1 % 256); 9419#L59-1 mp_add_~nb~0#1 := 4; 9436#L69 assume !(0 == mp_add_~b3~0#1 % 256); 9427#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 9455#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 9452#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 9453#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 9713#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 9444#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 9432#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 9433#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 9719#L90 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b0~0#1 % 256; 9717#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 9716#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 9715#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 9423#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 9424#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 9437#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 9429#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 9430#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 9448#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 9442#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 9443#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 9721#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 9422#L89 [2021-11-19 04:35:41,328 INFO L793 eck$LassoCheckResult]: Loop: 9422#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 9599#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 9595#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 9509#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 9586#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 9501#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 9491#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 9492#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 9567#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 9575#L90 assume !(0 == mp_add_~i~0#1 % 256); 9573#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 9572#L91-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b2~0#1 % 256; 9568#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 9493#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 9489#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 9487#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 9485#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 9482#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 9479#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 9473#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 9474#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 9460#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 9449#L90 assume !(0 == mp_add_~i~0#1 % 256); 9450#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 9457#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 9530#L92-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b3~0#1 % 256; 9522#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 9519#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 9515#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 9511#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 9499#L101-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~r3~0#1 := mp_add_~partial_sum~0#1; 9498#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 9494#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 9495#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 9671#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 9669#L90 assume !(0 == mp_add_~i~0#1 % 256); 9667#L90-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b1~0#1 % 256; 9420#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 9421#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 9422#L89 [2021-11-19 04:35:41,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:41,329 INFO L85 PathProgramCache]: Analyzing trace with hash 465531897, now seen corresponding path program 1 times [2021-11-19 04:35:41,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:41,330 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399848772] [2021-11-19 04:35:41,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:41,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:41,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:41,451 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:41,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:41,452 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399848772] [2021-11-19 04:35:41,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399848772] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:35:41,452 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420770618] [2021-11-19 04:35:41,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:41,453 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:35:41,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:41,455 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:35:41,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-19 04:35:41,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:41,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 04:35:41,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:35:42,023 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:42,024 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 04:35:42,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420770618] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:35:42,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:35:42,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2021-11-19 04:35:42,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124177664] [2021-11-19 04:35:42,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:35:42,028 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-19 04:35:42,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:42,029 INFO L85 PathProgramCache]: Analyzing trace with hash 956487534, now seen corresponding path program 1 times [2021-11-19 04:35:42,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:42,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401758056] [2021-11-19 04:35:42,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:42,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:42,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:42,141 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 10 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:42,141 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:42,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401758056] [2021-11-19 04:35:42,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401758056] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:35:42,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656482407] [2021-11-19 04:35:42,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:42,143 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:35:42,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:42,151 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:35:42,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-19 04:35:42,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:42,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 04:35:42,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:35:42,367 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-19 04:35:42,367 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 04:35:42,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [656482407] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:35:42,368 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:35:42,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2021-11-19 04:35:42,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162461811] [2021-11-19 04:35:42,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:35:42,369 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-19 04:35:42,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:35:42,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 04:35:42,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-19 04:35:42,370 INFO L87 Difference]: Start difference. First operand 308 states and 402 transitions. cyclomatic complexity: 96 Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:42,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:35:42,614 INFO L93 Difference]: Finished difference Result 357 states and 457 transitions. [2021-11-19 04:35:42,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 04:35:42,616 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 357 states and 457 transitions. [2021-11-19 04:35:42,619 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 293 [2021-11-19 04:35:42,625 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 357 states to 357 states and 457 transitions. [2021-11-19 04:35:42,625 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 357 [2021-11-19 04:35:42,626 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 357 [2021-11-19 04:35:42,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 357 states and 457 transitions. [2021-11-19 04:35:42,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:35:42,627 INFO L681 BuchiCegarLoop]: Abstraction has 357 states and 457 transitions. [2021-11-19 04:35:42,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states and 457 transitions. [2021-11-19 04:35:42,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 331. [2021-11-19 04:35:42,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 331 states have (on average 1.2870090634441087) internal successors, (426), 330 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:42,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 426 transitions. [2021-11-19 04:35:42,637 INFO L704 BuchiCegarLoop]: Abstraction has 331 states and 426 transitions. [2021-11-19 04:35:42,638 INFO L587 BuchiCegarLoop]: Abstraction has 331 states and 426 transitions. [2021-11-19 04:35:42,638 INFO L425 BuchiCegarLoop]: ======== Iteration 18============ [2021-11-19 04:35:42,638 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 331 states and 426 transitions. [2021-11-19 04:35:42,640 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 267 [2021-11-19 04:35:42,641 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:35:42,641 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:35:42,643 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:42,644 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:42,644 INFO L791 eck$LassoCheckResult]: Stem: 10312#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2); 10303#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~ret2#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 234770789;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 10296#L59 assume !(0 == mp_add_~a3~0#1 % 256); 10297#L59-1 mp_add_~nb~0#1 := 4; 10308#L69 assume !(0 == mp_add_~b3~0#1 % 256); 10301#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 10331#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 10601#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 10595#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 10594#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 10592#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 10591#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 10589#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 10588#L90 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b0~0#1 % 256; 10587#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 10586#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 10290#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 10291#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 10292#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 10620#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 10619#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 10618#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 10617#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 10616#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 10327#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 10310#L84 assume !(0 == mp_add_~i~0#1 % 256); 10311#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 10614#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 10613#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 10558#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 10557#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 10612#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 10309#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 10298#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 10299#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 10471#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 10472#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 10467#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 10466#L84 [2021-11-19 04:35:42,644 INFO L793 eck$LassoCheckResult]: Loop: 10466#L84 assume !(0 == mp_add_~i~0#1 % 256); 10465#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 10464#L85-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a2~0#1 % 256; 10463#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 10460#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 10458#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 10457#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 10456#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 10455#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 10454#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 10453#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 10452#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 10451#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 10305#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 10417#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 10405#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 10401#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 10398#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 10379#L101-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~r3~0#1 := mp_add_~partial_sum~0#1; 10375#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 10337#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 10338#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 10547#L84 assume !(0 == mp_add_~i~0#1 % 256); 10549#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 10548#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 10546#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 10544#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 10323#L90 assume !(0 == mp_add_~i~0#1 % 256); 10324#L90-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b1~0#1 % 256; 10503#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 10499#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 10495#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 10493#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 10491#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 10397#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 10487#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 10486#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 10469#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 10470#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 10466#L84 [2021-11-19 04:35:42,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:42,645 INFO L85 PathProgramCache]: Analyzing trace with hash 149180734, now seen corresponding path program 1 times [2021-11-19 04:35:42,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:42,645 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013564069] [2021-11-19 04:35:42,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:42,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:42,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:42,811 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:42,811 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:42,812 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013564069] [2021-11-19 04:35:42,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013564069] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:35:42,812 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537135816] [2021-11-19 04:35:42,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:42,813 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:35:42,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:42,815 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:35:42,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-19 04:35:42,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:42,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 04:35:42,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:35:43,286 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 04:35:43,286 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 04:35:43,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537135816] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:35:43,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:35:43,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2021-11-19 04:35:43,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121304420] [2021-11-19 04:35:43,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:35:43,288 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-19 04:35:43,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:43,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1135149264, now seen corresponding path program 2 times [2021-11-19 04:35:43,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:43,289 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136026197] [2021-11-19 04:35:43,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:43,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:43,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:43,481 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 23 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:43,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:43,482 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136026197] [2021-11-19 04:35:43,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136026197] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:35:43,482 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526322386] [2021-11-19 04:35:43,482 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 04:35:43,482 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:35:43,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:43,487 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:35:43,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-19 04:35:43,560 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 04:35:43,560 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 04:35:43,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 04:35:43,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:35:43,711 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-19 04:35:43,711 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 04:35:43,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [526322386] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:35:43,712 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:35:43,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2021-11-19 04:35:43,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341759229] [2021-11-19 04:35:43,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:35:43,713 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-19 04:35:43,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:35:43,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 04:35:43,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 04:35:43,714 INFO L87 Difference]: Start difference. First operand 331 states and 426 transitions. cyclomatic complexity: 97 Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:43,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:35:43,872 INFO L93 Difference]: Finished difference Result 654 states and 837 transitions. [2021-11-19 04:35:43,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 04:35:43,873 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 654 states and 837 transitions. [2021-11-19 04:35:43,881 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 534 [2021-11-19 04:35:43,887 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 654 states to 654 states and 837 transitions. [2021-11-19 04:35:43,888 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 654 [2021-11-19 04:35:43,889 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 654 [2021-11-19 04:35:43,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 654 states and 837 transitions. [2021-11-19 04:35:43,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:35:43,891 INFO L681 BuchiCegarLoop]: Abstraction has 654 states and 837 transitions. [2021-11-19 04:35:43,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states and 837 transitions. [2021-11-19 04:35:43,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 612. [2021-11-19 04:35:43,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 612 states have (on average 1.2908496732026145) internal successors, (790), 611 states have internal predecessors, (790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:43,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 790 transitions. [2021-11-19 04:35:43,912 INFO L704 BuchiCegarLoop]: Abstraction has 612 states and 790 transitions. [2021-11-19 04:35:43,913 INFO L587 BuchiCegarLoop]: Abstraction has 612 states and 790 transitions. [2021-11-19 04:35:43,913 INFO L425 BuchiCegarLoop]: ======== Iteration 19============ [2021-11-19 04:35:43,913 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 612 states and 790 transitions. [2021-11-19 04:35:43,918 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 504 [2021-11-19 04:35:43,918 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:35:43,918 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:35:43,920 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:43,920 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:43,920 INFO L791 eck$LassoCheckResult]: Stem: 11543#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2); 11531#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~ret2#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 234770789;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 11524#L59 assume !(0 == mp_add_~a3~0#1 % 256); 11525#L59-1 mp_add_~nb~0#1 := 4; 11536#L69 assume 0 == mp_add_~b3~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 11528#L71 assume !(0 == mp_add_~b2~0#1 % 256); 11529#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 11834#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 11833#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 11832#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 11831#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 11830#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 11829#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 11828#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 11827#L90 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b0~0#1 % 256; 11826#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 11825#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 11824#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 11822#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 11821#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 11820#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 11819#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 11818#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 11817#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 11816#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 11815#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 11814#L84 assume !(0 == mp_add_~i~0#1 % 256); 11813#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 11812#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 11811#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 11809#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 11805#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 11801#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 11797#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 11795#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 11793#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 11791#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 11789#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 11787#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 11784#L84 [2021-11-19 04:35:43,921 INFO L793 eck$LassoCheckResult]: Loop: 11784#L84 assume !(0 == mp_add_~i~0#1 % 256); 11785#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 12019#L85-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a2~0#1 % 256; 12017#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 11668#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 11667#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 11770#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 11767#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 11766#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 11765#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 11764#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 11763#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 11758#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 11760#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 11626#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 11623#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 11617#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 11618#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 11604#L101-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~r3~0#1 := mp_add_~partial_sum~0#1; 11603#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 11598#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 11599#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 12069#L84 assume !(0 == mp_add_~i~0#1 % 256); 12068#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 12066#L85-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a2~0#1 % 256; 11939#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 11994#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 11993#L90 assume !(0 == mp_add_~i~0#1 % 256); 11992#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 11989#L91-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b2~0#1 % 256; 11835#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 11650#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 11651#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 11802#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 11692#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 11740#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 11741#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 11733#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 11734#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 11784#L84 [2021-11-19 04:35:43,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:43,921 INFO L85 PathProgramCache]: Analyzing trace with hash 225768271, now seen corresponding path program 1 times [2021-11-19 04:35:43,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:43,922 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633816729] [2021-11-19 04:35:43,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:43,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:43,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:44,107 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:44,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:44,108 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633816729] [2021-11-19 04:35:44,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633816729] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:35:44,108 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793314325] [2021-11-19 04:35:44,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:44,108 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:35:44,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:44,111 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:35:44,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-19 04:35:44,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:44,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 04:35:44,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:35:44,985 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-19 04:35:44,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:35:45,344 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:45,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [793314325] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:35:45,345 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 04:35:45,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 15 [2021-11-19 04:35:45,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268368678] [2021-11-19 04:35:45,345 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 04:35:45,346 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-19 04:35:45,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:45,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1806931120, now seen corresponding path program 1 times [2021-11-19 04:35:45,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:45,347 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175766955] [2021-11-19 04:35:45,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:45,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:45,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:45,373 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-19 04:35:45,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:45,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175766955] [2021-11-19 04:35:45,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175766955] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:35:45,374 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:35:45,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 04:35:45,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046545711] [2021-11-19 04:35:45,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:35:45,375 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-19 04:35:45,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:35:45,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:35:45,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:35:45,376 INFO L87 Difference]: Start difference. First operand 612 states and 790 transitions. cyclomatic complexity: 181 Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:45,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:35:45,473 INFO L93 Difference]: Finished difference Result 637 states and 787 transitions. [2021-11-19 04:35:45,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:35:45,474 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 637 states and 787 transitions. [2021-11-19 04:35:45,480 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 529 [2021-11-19 04:35:45,487 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 637 states to 637 states and 787 transitions. [2021-11-19 04:35:45,488 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 637 [2021-11-19 04:35:45,489 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 637 [2021-11-19 04:35:45,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 637 states and 787 transitions. [2021-11-19 04:35:45,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:35:45,490 INFO L681 BuchiCegarLoop]: Abstraction has 637 states and 787 transitions. [2021-11-19 04:35:45,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states and 787 transitions. [2021-11-19 04:35:45,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 567. [2021-11-19 04:35:45,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 567 states have (on average 1.2398589065255732) internal successors, (703), 566 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:45,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 703 transitions. [2021-11-19 04:35:45,508 INFO L704 BuchiCegarLoop]: Abstraction has 567 states and 703 transitions. [2021-11-19 04:35:45,508 INFO L587 BuchiCegarLoop]: Abstraction has 567 states and 703 transitions. [2021-11-19 04:35:45,509 INFO L425 BuchiCegarLoop]: ======== Iteration 20============ [2021-11-19 04:35:45,509 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 567 states and 703 transitions. [2021-11-19 04:35:45,513 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 459 [2021-11-19 04:35:45,513 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:35:45,514 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:35:45,520 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:45,521 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:45,521 INFO L791 eck$LassoCheckResult]: Stem: 13037#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2); 13026#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~ret2#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 234770789;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 13014#L59 assume !(0 == mp_add_~a3~0#1 % 256); 13015#L59-1 mp_add_~nb~0#1 := 4; 13031#L69 assume 0 == mp_add_~b3~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 13021#L71 assume !(0 == mp_add_~b2~0#1 % 256); 13022#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 13052#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 13474#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 13473#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 13472#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 13471#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 13470#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 13469#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 13467#L90 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b0~0#1 % 256; 13465#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 13463#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 13461#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 13458#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 13456#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 13454#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 13452#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 13450#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 13448#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 13445#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 13444#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 13442#L84 assume !(0 == mp_add_~i~0#1 % 256); 13440#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 13439#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 13438#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 13435#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 13429#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 13428#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 13424#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 13423#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 13422#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 13420#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 13419#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 13248#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 13249#L84 [2021-11-19 04:35:45,521 INFO L793 eck$LassoCheckResult]: Loop: 13249#L84 assume !(0 == mp_add_~i~0#1 % 256); 13244#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 13245#L85-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a2~0#1 % 256; 13238#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 13239#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 13336#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 13335#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 13334#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 13333#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 13332#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 13331#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 13330#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 13328#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 13329#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 13475#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 13321#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 13417#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 13105#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 13106#L101-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~r3~0#1 := mp_add_~partial_sum~0#1; 13086#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 13087#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 13409#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 13400#L84 assume !(0 == mp_add_~i~0#1 % 256); 13401#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 13396#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 13395#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 13393#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 13309#L90 assume !(0 == mp_add_~i~0#1 % 256); 13392#L90-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b1~0#1 % 256; 13391#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 13306#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 13307#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 13297#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 13298#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 13285#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 13286#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 13276#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 13277#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 13268#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 13249#L84 [2021-11-19 04:35:45,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:45,522 INFO L85 PathProgramCache]: Analyzing trace with hash 225768271, now seen corresponding path program 2 times [2021-11-19 04:35:45,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:45,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33846215] [2021-11-19 04:35:45,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:45,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:45,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:45,677 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:45,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:45,677 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33846215] [2021-11-19 04:35:45,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33846215] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:35:45,677 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694965767] [2021-11-19 04:35:45,678 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 04:35:45,678 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:35:45,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:45,683 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:35:45,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-19 04:35:45,854 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 04:35:45,854 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 04:35:45,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 04:35:45,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:35:46,550 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-19 04:35:46,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:35:46,949 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:46,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [694965767] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:35:46,950 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 04:35:46,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 15 [2021-11-19 04:35:46,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484161680] [2021-11-19 04:35:46,951 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 04:35:46,951 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-19 04:35:46,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:46,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1135149264, now seen corresponding path program 3 times [2021-11-19 04:35:46,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:46,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656578142] [2021-11-19 04:35:46,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:46,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:46,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:47,142 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 23 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:47,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:47,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656578142] [2021-11-19 04:35:47,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656578142] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:35:47,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356601146] [2021-11-19 04:35:47,143 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 04:35:47,143 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:35:47,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:47,151 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:35:47,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-19 04:35:47,203 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-19 04:35:47,203 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 04:35:47,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 04:35:47,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:35:47,368 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-19 04:35:47,369 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 04:35:47,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356601146] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:35:47,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:35:47,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2021-11-19 04:35:47,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48087013] [2021-11-19 04:35:47,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:35:47,370 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-19 04:35:47,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:35:47,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 04:35:47,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-19 04:35:47,372 INFO L87 Difference]: Start difference. First operand 567 states and 703 transitions. cyclomatic complexity: 139 Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:47,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:35:47,576 INFO L93 Difference]: Finished difference Result 665 states and 808 transitions. [2021-11-19 04:35:47,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 04:35:47,577 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 665 states and 808 transitions. [2021-11-19 04:35:47,586 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 541 [2021-11-19 04:35:47,594 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 665 states to 649 states and 782 transitions. [2021-11-19 04:35:47,594 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 649 [2021-11-19 04:35:47,595 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 649 [2021-11-19 04:35:47,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 649 states and 782 transitions. [2021-11-19 04:35:47,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:35:47,597 INFO L681 BuchiCegarLoop]: Abstraction has 649 states and 782 transitions. [2021-11-19 04:35:47,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states and 782 transitions. [2021-11-19 04:35:47,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 530. [2021-11-19 04:35:47,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 530 states have (on average 1.2264150943396226) internal successors, (650), 529 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:47,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 650 transitions. [2021-11-19 04:35:47,618 INFO L704 BuchiCegarLoop]: Abstraction has 530 states and 650 transitions. [2021-11-19 04:35:47,618 INFO L587 BuchiCegarLoop]: Abstraction has 530 states and 650 transitions. [2021-11-19 04:35:47,618 INFO L425 BuchiCegarLoop]: ======== Iteration 21============ [2021-11-19 04:35:47,619 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 530 states and 650 transitions. [2021-11-19 04:35:47,623 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 422 [2021-11-19 04:35:47,624 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:35:47,624 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:35:47,625 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:47,625 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:47,626 INFO L791 eck$LassoCheckResult]: Stem: 14637#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2); 14626#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~ret2#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 234770789;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 14619#L59 assume !(0 == mp_add_~a3~0#1 % 256); 14620#L59-1 mp_add_~nb~0#1 := 4; 14631#L69 assume 0 == mp_add_~b3~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 14623#L71 assume !(0 == mp_add_~b2~0#1 % 256); 14624#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 14983#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 14982#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 14981#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 14980#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 14979#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 14978#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 14977#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 14976#L90 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b0~0#1 % 256; 14975#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 14974#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 14973#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 14971#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 14970#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 14969#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 14968#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 14967#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 14966#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 14965#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 14964#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 14963#L84 assume !(0 == mp_add_~i~0#1 % 256); 14962#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 14961#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 14960#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 14958#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 14951#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 14952#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 14941#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 14942#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 14929#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 14930#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 14917#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 14918#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 14835#L84 [2021-11-19 04:35:47,626 INFO L793 eck$LassoCheckResult]: Loop: 14835#L84 assume !(0 == mp_add_~i~0#1 % 256); 14836#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 14827#L85-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a2~0#1 % 256; 14828#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 14819#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 14818#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 14812#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 14813#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 14808#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 14809#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 14804#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 14805#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 14800#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 14801#L84 assume !(0 == mp_add_~i~0#1 % 256); 14794#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 14795#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 14789#L86-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a3~0#1 % 256; 14790#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 14700#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 14701#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 14696#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 14697#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 14692#L101-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~r3~0#1 := mp_add_~partial_sum~0#1; 14693#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 14688#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 14689#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 14685#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 14684#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 14763#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 15031#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 14665#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 14664#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 14913#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 14914#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 14783#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 14784#L84 assume !(0 == mp_add_~i~0#1 % 256); 14908#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 14772#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 14943#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 14944#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 14877#L90 assume !(0 == mp_add_~i~0#1 % 256); 14931#L90-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b1~0#1 % 256; 14919#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 14920#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 14869#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 14870#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 14861#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 14862#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 14853#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 14854#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 14845#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 14846#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 14835#L84 [2021-11-19 04:35:47,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:47,627 INFO L85 PathProgramCache]: Analyzing trace with hash 225768271, now seen corresponding path program 3 times [2021-11-19 04:35:47,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:47,628 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792252830] [2021-11-19 04:35:47,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:47,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:47,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:47,775 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:47,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:47,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792252830] [2021-11-19 04:35:47,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792252830] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:35:47,776 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848166979] [2021-11-19 04:35:47,776 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 04:35:47,776 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:35:47,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:47,779 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:35:47,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-19 04:35:47,917 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-19 04:35:47,917 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 04:35:47,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 04:35:47,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:35:48,466 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-19 04:35:48,466 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:35:48,665 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-19 04:35:48,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1848166979] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:35:48,666 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 04:35:48,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 12 [2021-11-19 04:35:48,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131588467] [2021-11-19 04:35:48,667 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 04:35:48,667 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-19 04:35:48,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:48,668 INFO L85 PathProgramCache]: Analyzing trace with hash -152111539, now seen corresponding path program 1 times [2021-11-19 04:35:48,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:48,668 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682170616] [2021-11-19 04:35:48,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:48,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:48,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:48,836 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 30 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:48,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:48,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682170616] [2021-11-19 04:35:48,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682170616] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:35:48,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947645966] [2021-11-19 04:35:48,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:48,838 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:35:48,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:48,841 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:35:48,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-19 04:35:48,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:48,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 04:35:48,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:35:49,288 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 55 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:49,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:35:49,624 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 55 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:49,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947645966] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:35:49,625 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 04:35:49,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 15 [2021-11-19 04:35:49,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325043745] [2021-11-19 04:35:49,626 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 04:35:49,626 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-19 04:35:49,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:35:49,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 04:35:49,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-11-19 04:35:49,628 INFO L87 Difference]: Start difference. First operand 530 states and 650 transitions. cyclomatic complexity: 123 Second operand has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 12 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:51,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:35:51,258 INFO L93 Difference]: Finished difference Result 1481 states and 1776 transitions. [2021-11-19 04:35:51,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-19 04:35:51,259 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1481 states and 1776 transitions. [2021-11-19 04:35:51,307 INFO L131 ngComponentsAnalysis]: Automaton has 10 accepting balls. 1199 [2021-11-19 04:35:51,321 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1481 states to 1449 states and 1738 transitions. [2021-11-19 04:35:51,322 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1449 [2021-11-19 04:35:51,325 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1449 [2021-11-19 04:35:51,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1449 states and 1738 transitions. [2021-11-19 04:35:51,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:35:51,328 INFO L681 BuchiCegarLoop]: Abstraction has 1449 states and 1738 transitions. [2021-11-19 04:35:51,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1449 states and 1738 transitions. [2021-11-19 04:35:51,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1449 to 1261. [2021-11-19 04:35:51,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1261 states, 1261 states have (on average 1.2204599524187154) internal successors, (1539), 1260 states have internal predecessors, (1539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:51,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1261 states to 1261 states and 1539 transitions. [2021-11-19 04:35:51,370 INFO L704 BuchiCegarLoop]: Abstraction has 1261 states and 1539 transitions. [2021-11-19 04:35:51,370 INFO L587 BuchiCegarLoop]: Abstraction has 1261 states and 1539 transitions. [2021-11-19 04:35:51,370 INFO L425 BuchiCegarLoop]: ======== Iteration 22============ [2021-11-19 04:35:51,370 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1261 states and 1539 transitions. [2021-11-19 04:35:51,380 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 1075 [2021-11-19 04:35:51,381 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:35:51,381 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:35:51,383 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:51,383 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:51,383 INFO L791 eck$LassoCheckResult]: Stem: 17240#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2); 17229#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~ret2#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 234770789;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 17222#L59 assume !(0 == mp_add_~a3~0#1 % 256); 17223#L59-1 mp_add_~nb~0#1 := 4; 17234#L69 assume 0 == mp_add_~b3~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 17226#L71 assume 0 == mp_add_~b2~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 17228#L73 assume 0 == mp_add_~b1~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 17255#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 17627#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 17626#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 17625#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 17624#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 17622#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 17620#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 17618#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 17616#L90 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b0~0#1 % 256; 17614#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 17612#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 17610#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 17607#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 17604#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 17601#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 17597#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 17594#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 17593#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 17592#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 17590#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 17588#L84 assume !(0 == mp_add_~i~0#1 % 256); 17586#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 17584#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 17578#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 17576#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 17561#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 17562#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 17552#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 17553#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 17571#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 17570#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 17472#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 17473#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 17402#L84 [2021-11-19 04:35:51,384 INFO L793 eck$LassoCheckResult]: Loop: 17402#L84 assume !(0 == mp_add_~i~0#1 % 256); 17403#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 17396#L85-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a2~0#1 % 256; 17397#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 17382#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 17381#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 17370#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 17371#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 17361#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 17362#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 17353#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 17354#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 17344#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 17345#L84 assume !(0 == mp_add_~i~0#1 % 256); 17330#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 17331#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 17314#L86-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a3~0#1 % 256; 17315#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 17302#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 17303#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 17298#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 17299#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 17294#L101-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~r3~0#1 := mp_add_~partial_sum~0#1; 17295#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 17290#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 17291#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 17283#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 17285#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 17274#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 17275#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 17271#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 17267#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 17268#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 17263#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 17264#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 17633#L84 assume !(0 == mp_add_~i~0#1 % 256); 17634#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 17603#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 17600#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 17595#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 17505#L90 assume !(0 == mp_add_~i~0#1 % 256); 17536#L90-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b1~0#1 % 256; 17581#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 17580#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 17497#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 17498#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 17489#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 17490#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 17481#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 17482#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 17431#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 17432#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 17402#L84 [2021-11-19 04:35:51,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:51,385 INFO L85 PathProgramCache]: Analyzing trace with hash -764527287, now seen corresponding path program 1 times [2021-11-19 04:35:51,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:51,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857987199] [2021-11-19 04:35:51,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:51,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:51,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:51,574 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:51,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:51,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857987199] [2021-11-19 04:35:51,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857987199] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:35:51,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196246332] [2021-11-19 04:35:51,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:51,576 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:35:51,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:51,580 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:35:51,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-19 04:35:51,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:51,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-19 04:35:51,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:35:52,115 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:52,116 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:35:52,310 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:52,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1196246332] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:35:52,310 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 04:35:52,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2021-11-19 04:35:52,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011741515] [2021-11-19 04:35:52,311 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 04:35:52,312 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-19 04:35:52,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:52,312 INFO L85 PathProgramCache]: Analyzing trace with hash -152111539, now seen corresponding path program 2 times [2021-11-19 04:35:52,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:52,313 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656093792] [2021-11-19 04:35:52,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:52,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:52,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:52,430 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 30 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:52,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:52,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656093792] [2021-11-19 04:35:52,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656093792] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:35:52,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580052751] [2021-11-19 04:35:52,431 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 04:35:52,431 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:35:52,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:52,435 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:35:52,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-19 04:35:52,516 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 04:35:52,517 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 04:35:52,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 04:35:52,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:35:52,970 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 55 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:52,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:35:53,278 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 55 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:53,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580052751] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:35:53,279 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 04:35:53,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 15 [2021-11-19 04:35:53,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50306743] [2021-11-19 04:35:53,280 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 04:35:53,281 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-19 04:35:53,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:35:53,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-19 04:35:53,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-11-19 04:35:53,282 INFO L87 Difference]: Start difference. First operand 1261 states and 1539 transitions. cyclomatic complexity: 284 Second operand has 11 states, 11 states have (on average 7.0) internal successors, (77), 11 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:53,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:35:53,773 INFO L93 Difference]: Finished difference Result 1644 states and 1959 transitions. [2021-11-19 04:35:53,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 04:35:53,774 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1644 states and 1959 transitions. [2021-11-19 04:35:53,790 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 1385 [2021-11-19 04:35:53,806 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1644 states to 1644 states and 1959 transitions. [2021-11-19 04:35:53,807 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1644 [2021-11-19 04:35:53,809 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1644 [2021-11-19 04:35:53,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1644 states and 1959 transitions. [2021-11-19 04:35:53,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:35:53,813 INFO L681 BuchiCegarLoop]: Abstraction has 1644 states and 1959 transitions. [2021-11-19 04:35:53,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1644 states and 1959 transitions. [2021-11-19 04:35:53,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1644 to 1246. [2021-11-19 04:35:53,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1246 states, 1246 states have (on average 1.2215088282504012) internal successors, (1522), 1245 states have internal predecessors, (1522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:35:53,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1246 states and 1522 transitions. [2021-11-19 04:35:53,864 INFO L704 BuchiCegarLoop]: Abstraction has 1246 states and 1522 transitions. [2021-11-19 04:35:53,864 INFO L587 BuchiCegarLoop]: Abstraction has 1246 states and 1522 transitions. [2021-11-19 04:35:53,864 INFO L425 BuchiCegarLoop]: ======== Iteration 23============ [2021-11-19 04:35:53,865 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1246 states and 1522 transitions. [2021-11-19 04:35:53,875 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 1072 [2021-11-19 04:35:53,875 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:35:53,875 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:35:53,880 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:53,880 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:35:53,881 INFO L791 eck$LassoCheckResult]: Stem: 20723#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2); 20713#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~ret2#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 234770789;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 20706#L59 assume !(0 == mp_add_~a3~0#1 % 256); 20707#L59-1 mp_add_~nb~0#1 := 4; 20718#L69 assume 0 == mp_add_~b3~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 20710#L71 assume 0 == mp_add_~b2~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 20712#L73 assume 0 == mp_add_~b1~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 20741#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 21071#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 21072#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 21067#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 21068#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 21063#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 21064#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 21059#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 21060#L90 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b0~0#1 % 256; 21055#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 21056#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 21051#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 21052#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 21047#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 21048#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 21043#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 21044#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 21039#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 21040#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 21035#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 21036#L84 assume !(0 == mp_add_~i~0#1 % 256); 21031#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 21032#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 21027#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 21028#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 21212#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 21210#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 21207#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 21182#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 21179#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 21176#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 21173#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 21174#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 20984#L84 [2021-11-19 04:35:53,881 INFO L793 eck$LassoCheckResult]: Loop: 20984#L84 assume !(0 == mp_add_~i~0#1 % 256); 20985#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 20944#L85-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a2~0#1 % 256; 20945#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 20942#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 21159#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 20863#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 21156#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 21152#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 21153#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 21146#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 21147#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 21139#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 21140#L84 assume !(0 == mp_add_~i~0#1 % 256); 21129#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 21130#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 21108#L86-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a3~0#1 % 256; 21109#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 20824#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 20787#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 21096#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 21097#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 21084#L101-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~r3~0#1 := mp_add_~partial_sum~0#1; 21085#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 21080#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 21081#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 21240#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 21215#L90 assume !(0 == mp_add_~i~0#1 % 256); 21248#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 21247#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 20772#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 21214#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 20762#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 20763#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 21211#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 20756#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 21204#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 21195#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 21119#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 21120#L84 assume !(0 == mp_add_~i~0#1 % 256); 21131#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 20815#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 21018#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 21019#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 21208#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 21206#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 21205#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 21183#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 21180#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 21177#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 21014#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 21015#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 20984#L84 [2021-11-19 04:35:53,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:53,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1151172087, now seen corresponding path program 1 times [2021-11-19 04:35:53,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:53,883 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125445515] [2021-11-19 04:35:53,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:53,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:53,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:35:53,914 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:35:53,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:35:53,961 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:35:53,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:35:53,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1060317865, now seen corresponding path program 1 times [2021-11-19 04:35:53,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:35:53,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628970061] [2021-11-19 04:35:53,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:53,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:35:53,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:54,036 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 51 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:35:54,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:35:54,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628970061] [2021-11-19 04:35:54,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628970061] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:35:54,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641108073] [2021-11-19 04:35:54,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:35:54,038 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:35:54,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:35:54,040 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:35:54,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-19 04:35:54,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:35:54,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 04:35:54,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:35:54,567 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 54 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-19 04:35:54,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:37:49,912 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 46 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-19 04:37:49,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [641108073] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:37:49,913 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 04:37:49,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 16 [2021-11-19 04:37:49,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638126782] [2021-11-19 04:37:49,913 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 04:37:49,914 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-19 04:37:49,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:37:49,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-19 04:37:49,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=185, Unknown=9, NotChecked=0, Total=240 [2021-11-19 04:37:49,915 INFO L87 Difference]: Start difference. First operand 1246 states and 1522 transitions. cyclomatic complexity: 282 Second operand has 16 states, 16 states have (on average 7.0) internal successors, (112), 16 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:38:18,595 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (* 256 (div |c_ULTIMATE.start_mp_add_~i~0#1| 256))) (.cse0 (* 256 (div |c_ULTIMATE.start_mp_add_~nb~0#1| 256)))) (and (<= (+ |c_ULTIMATE.start_mp_add_~i~0#1| .cse0 1) (+ |c_ULTIMATE.start_mp_add_~nb~0#1| .cse1)) (<= (+ .cse1 1) |c_ULTIMATE.start_mp_add_~i~0#1|) (<= (div (+ (* (mod |c_ULTIMATE.start_mp_add_~nb~0#1| 256) (- 1)) (- 252)) (- 256)) 1) (<= (+ 2 .cse0) |c_ULTIMATE.start_mp_add_~nb~0#1|) (forall ((|aux_mod_aux_mod_ULTIMATE.start_mp_add_~nb~0#1_41_78| Int) (|aux_div_aux_mod_ULTIMATE.start_mp_add_~nb~0#1_41_78| Int)) (or (<= |aux_div_aux_mod_ULTIMATE.start_mp_add_~nb~0#1_41_78| 1) (<= (+ 508 |aux_mod_aux_mod_ULTIMATE.start_mp_add_~nb~0#1_41_78|) (* 256 |aux_div_aux_mod_ULTIMATE.start_mp_add_~nb~0#1_41_78|)) (<= 256 |aux_mod_aux_mod_ULTIMATE.start_mp_add_~nb~0#1_41_78|) (< (mod |c_ULTIMATE.start_mp_add_~i~0#1| 256) (mod (+ (* |aux_mod_aux_mod_ULTIMATE.start_mp_add_~nb~0#1_41_78| 255) 4) 256)))) (<= (+ (* 256 (div |c_ULTIMATE.start_mp_add_~na~0#1| 256)) 1) |c_ULTIMATE.start_mp_add_~na~0#1|))) is different from false [2021-11-19 04:38:31,481 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (* 256 (div |c_ULTIMATE.start_mp_add_~i~0#1| 256))) (.cse0 (* 256 (div |c_ULTIMATE.start_mp_add_~nb~0#1| 256))) (.cse2 (* (mod |c_ULTIMATE.start_mp_add_~nb~0#1| 256) (- 1)))) (and (<= (+ |c_ULTIMATE.start_mp_add_~i~0#1| .cse0 1) (+ |c_ULTIMATE.start_mp_add_~nb~0#1| .cse1)) (<= (+ .cse1 1) |c_ULTIMATE.start_mp_add_~i~0#1|) (<= (div (+ .cse2 (- 252)) (- 256)) 1) (<= (+ 2 .cse0) |c_ULTIMATE.start_mp_add_~nb~0#1|) (<= (div (+ .cse2 (mod |c_ULTIMATE.start_mp_add_~na~0#1| 256)) (- 256)) 0) (forall ((|aux_mod_aux_mod_ULTIMATE.start_mp_add_~nb~0#1_41_78| Int) (|aux_div_aux_mod_ULTIMATE.start_mp_add_~nb~0#1_41_78| Int)) (or (<= |aux_div_aux_mod_ULTIMATE.start_mp_add_~nb~0#1_41_78| 1) (<= (+ 508 |aux_mod_aux_mod_ULTIMATE.start_mp_add_~nb~0#1_41_78|) (* 256 |aux_div_aux_mod_ULTIMATE.start_mp_add_~nb~0#1_41_78|)) (<= 256 |aux_mod_aux_mod_ULTIMATE.start_mp_add_~nb~0#1_41_78|) (< (mod |c_ULTIMATE.start_mp_add_~i~0#1| 256) (mod (+ (* |aux_mod_aux_mod_ULTIMATE.start_mp_add_~nb~0#1_41_78| 255) 4) 256)))) (<= (+ (* 256 (div |c_ULTIMATE.start_mp_add_~na~0#1| 256)) 1) |c_ULTIMATE.start_mp_add_~na~0#1|))) is different from false [2021-11-19 04:41:58,319 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (* 256 (div |c_ULTIMATE.start_mp_add_~i~0#1| 256))) (.cse0 (* 256 (div |c_ULTIMATE.start_mp_add_~nb~0#1| 256)))) (and (<= (+ |c_ULTIMATE.start_mp_add_~i~0#1| .cse0 1) (+ |c_ULTIMATE.start_mp_add_~nb~0#1| .cse1)) (<= (+ .cse1 1) |c_ULTIMATE.start_mp_add_~i~0#1|) (<= (div (+ (* (mod |c_ULTIMATE.start_mp_add_~nb~0#1| 256) (- 1)) (- 252)) (- 256)) 1) (<= (+ 2 .cse0) |c_ULTIMATE.start_mp_add_~nb~0#1|) (forall ((|aux_mod_aux_mod_ULTIMATE.start_mp_add_~nb~0#1_41_78| Int) (|aux_div_aux_mod_ULTIMATE.start_mp_add_~nb~0#1_41_78| Int)) (or (<= |aux_div_aux_mod_ULTIMATE.start_mp_add_~nb~0#1_41_78| 1) (<= (+ 508 |aux_mod_aux_mod_ULTIMATE.start_mp_add_~nb~0#1_41_78|) (* 256 |aux_div_aux_mod_ULTIMATE.start_mp_add_~nb~0#1_41_78|)) (<= 256 |aux_mod_aux_mod_ULTIMATE.start_mp_add_~nb~0#1_41_78|) (< (mod |c_ULTIMATE.start_mp_add_~i~0#1| 256) (mod (+ (* |aux_mod_aux_mod_ULTIMATE.start_mp_add_~nb~0#1_41_78| 255) 4) 256)))))) is different from false [2021-11-19 04:41:58,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:41:58,652 INFO L93 Difference]: Finished difference Result 5342 states and 6373 transitions. [2021-11-19 04:41:58,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-11-19 04:41:58,653 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5342 states and 6373 transitions. [2021-11-19 04:41:58,692 INFO L131 ngComponentsAnalysis]: Automaton has 21 accepting balls. 4555 [2021-11-19 04:41:58,733 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5342 states to 5211 states and 6225 transitions. [2021-11-19 04:41:58,733 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5211 [2021-11-19 04:41:58,739 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5211 [2021-11-19 04:41:58,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5211 states and 6225 transitions. [2021-11-19 04:41:58,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:41:58,817 INFO L681 BuchiCegarLoop]: Abstraction has 5211 states and 6225 transitions. [2021-11-19 04:41:58,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5211 states and 6225 transitions. [2021-11-19 04:41:58,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5211 to 2527. [2021-11-19 04:41:58,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2527 states, 2527 states have (on average 1.2172536604669568) internal successors, (3076), 2526 states have internal predecessors, (3076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:41:58,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2527 states to 2527 states and 3076 transitions. [2021-11-19 04:41:58,909 INFO L704 BuchiCegarLoop]: Abstraction has 2527 states and 3076 transitions. [2021-11-19 04:41:58,909 INFO L587 BuchiCegarLoop]: Abstraction has 2527 states and 3076 transitions. [2021-11-19 04:41:58,909 INFO L425 BuchiCegarLoop]: ======== Iteration 24============ [2021-11-19 04:41:58,909 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2527 states and 3076 transitions. [2021-11-19 04:41:58,921 INFO L131 ngComponentsAnalysis]: Automaton has 11 accepting balls. 2277 [2021-11-19 04:41:58,921 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:41:58,921 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:41:58,922 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:41:58,922 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2021-11-19 04:41:58,923 INFO L791 eck$LassoCheckResult]: Stem: 27865#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2); 27855#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~ret2#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 234770789;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 27848#L59 assume !(0 == mp_add_~a3~0#1 % 256); 27849#L59-1 mp_add_~nb~0#1 := 4; 27860#L69 assume 0 == mp_add_~b3~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 27852#L71 assume 0 == mp_add_~b2~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 27854#L73 assume 0 == mp_add_~b1~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 27885#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 28781#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 28782#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 28777#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 28778#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 28773#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 28774#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 28769#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 28770#L90 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b0~0#1 % 256; 28765#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 28766#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 28761#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 28762#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 28757#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 28758#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 28753#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 28754#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 28749#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 28750#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 28745#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 28746#L84 assume !(0 == mp_add_~i~0#1 % 256); 28741#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 28742#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 28737#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 28738#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 29976#L89 [2021-11-19 04:41:58,923 INFO L793 eck$LassoCheckResult]: Loop: 29976#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 29977#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 30085#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 30084#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 30083#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 30082#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 30081#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 30080#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 30079#L84 assume !(0 == mp_add_~i~0#1 % 256); 30078#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 30077#L85-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a2~0#1 % 256; 30076#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 30033#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 30032#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 30031#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 30030#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 30029#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 30028#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 30027#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 30026#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 30025#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 30024#L84 assume !(0 == mp_add_~i~0#1 % 256); 30023#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 30022#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 30018#L86-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a3~0#1 % 256; 30017#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 30016#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 30015#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 30014#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 30013#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 30012#L101-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~r3~0#1 := mp_add_~partial_sum~0#1; 30011#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 30010#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 30009#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 30008#L84 assume !(0 == mp_add_~i~0#1 % 256); 30007#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 30006#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 30003#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 30001#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 29999#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 29997#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 29995#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 29993#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 29990#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 29989#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 29988#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 29986#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 29987#L84 assume !(0 == mp_add_~i~0#1 % 256); 29982#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 29981#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 29980#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 29979#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 29976#L89 [2021-11-19 04:41:58,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:41:58,924 INFO L85 PathProgramCache]: Analyzing trace with hash -500622378, now seen corresponding path program 1 times [2021-11-19 04:41:58,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:41:58,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760010978] [2021-11-19 04:41:58,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:41:58,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:41:58,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:41:58,942 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:41:58,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:41:58,966 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:41:58,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:41:58,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1831635379, now seen corresponding path program 1 times [2021-11-19 04:41:58,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:41:58,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089518684] [2021-11-19 04:41:58,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:41:58,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:41:58,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:41:59,123 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 18 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:41:59,123 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:41:59,123 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089518684] [2021-11-19 04:41:59,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089518684] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:41:59,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613913017] [2021-11-19 04:41:59,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:41:59,124 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:41:59,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:41:59,126 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:41:59,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-19 04:41:59,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:41:59,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 04:41:59,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:41:59,423 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 55 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 04:41:59,424 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:41:59,678 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 55 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-19 04:41:59,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1613913017] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:41:59,679 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 04:41:59,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 13 [2021-11-19 04:41:59,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191909053] [2021-11-19 04:41:59,679 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 04:41:59,680 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-19 04:41:59,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:41:59,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-19 04:41:59,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-19 04:41:59,681 INFO L87 Difference]: Start difference. First operand 2527 states and 3076 transitions. cyclomatic complexity: 560 Second operand has 13 states, 13 states have (on average 8.923076923076923) internal successors, (116), 13 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:42:00,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:42:00,984 INFO L93 Difference]: Finished difference Result 1338 states and 1506 transitions. [2021-11-19 04:42:00,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 04:42:00,984 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1338 states and 1506 transitions. [2021-11-19 04:42:00,992 INFO L131 ngComponentsAnalysis]: Automaton has 14 accepting balls. 256 [2021-11-19 04:42:01,001 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1338 states to 1332 states and 1464 transitions. [2021-11-19 04:42:01,002 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1332 [2021-11-19 04:42:01,003 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1332 [2021-11-19 04:42:01,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1332 states and 1464 transitions. [2021-11-19 04:42:01,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:42:01,006 INFO L681 BuchiCegarLoop]: Abstraction has 1332 states and 1464 transitions. [2021-11-19 04:42:01,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1332 states and 1464 transitions. [2021-11-19 04:42:01,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1332 to 420. [2021-11-19 04:42:01,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 420 states have (on average 1.1) internal successors, (462), 419 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:42:01,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 462 transitions. [2021-11-19 04:42:01,024 INFO L704 BuchiCegarLoop]: Abstraction has 420 states and 462 transitions. [2021-11-19 04:42:01,024 INFO L587 BuchiCegarLoop]: Abstraction has 420 states and 462 transitions. [2021-11-19 04:42:01,024 INFO L425 BuchiCegarLoop]: ======== Iteration 25============ [2021-11-19 04:42:01,025 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 420 states and 462 transitions. [2021-11-19 04:42:01,027 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 61 [2021-11-19 04:42:01,027 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:42:01,027 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:42:01,028 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:42:01,028 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:42:01,029 INFO L791 eck$LassoCheckResult]: Stem: 32062#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2); 32054#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~ret2#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 234770789;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 32047#L59 assume !(0 == mp_add_~a3~0#1 % 256); 32048#L59-1 mp_add_~nb~0#1 := 4; 32057#L69 assume 0 == mp_add_~b3~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 32051#L71 assume 0 == mp_add_~b2~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 32053#L73 assume !(0 == mp_add_~b1~0#1 % 256); 32073#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 32244#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 32243#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 32242#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 32241#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 32240#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 32239#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 32238#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 32237#L90 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b0~0#1 % 256; 32236#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 32235#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 32234#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 32233#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 32232#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 32231#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 32230#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 32229#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 32228#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 32227#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 32226#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 32225#L84 assume !(0 == mp_add_~i~0#1 % 256); 32224#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 32223#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 32222#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 32104#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 32105#L90 assume !(0 == mp_add_~i~0#1 % 256); 32100#L90-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b1~0#1 % 256; 32101#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 32096#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 32097#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 32215#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 32214#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 32213#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 32212#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 32211#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 32210#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 32209#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 32208#L84 assume !(0 == mp_add_~i~0#1 % 256); 32207#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 32206#L85-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a2~0#1 % 256; 32205#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 32204#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 32202#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 32201#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 32200#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 32199#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 32197#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 32198#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 32295#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 32291#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 32293#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 32349#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 32342#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 32348#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 32347#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 32345#L101-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~r3~0#1 := mp_add_~partial_sum~0#1; 32344#L102-1 [2021-11-19 04:42:01,029 INFO L793 eck$LassoCheckResult]: Loop: 32344#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 32343#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 32333#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 32332#L84 assume !(0 == mp_add_~i~0#1 % 256); 32331#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 32330#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 32191#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 32192#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 32363#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 32362#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 32361#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 32360#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 32346#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 32344#L102-1 [2021-11-19 04:42:01,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:42:01,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1398985312, now seen corresponding path program 1 times [2021-11-19 04:42:01,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:42:01,030 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331336627] [2021-11-19 04:42:01,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:42:01,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:42:01,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:42:01,427 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:42:01,427 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:42:01,428 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331336627] [2021-11-19 04:42:01,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331336627] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:42:01,428 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261325945] [2021-11-19 04:42:01,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:42:01,429 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:42:01,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:01,430 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:42:01,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-19 04:42:01,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:42:01,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 04:42:01,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:42:02,251 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-11-19 04:42:02,251 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:42:02,645 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-11-19 04:42:02,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261325945] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:42:02,645 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 04:42:02,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 3, 3] total 11 [2021-11-19 04:42:02,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650550476] [2021-11-19 04:42:02,646 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 04:42:02,646 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-19 04:42:02,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:42:02,647 INFO L85 PathProgramCache]: Analyzing trace with hash 672830572, now seen corresponding path program 1 times [2021-11-19 04:42:02,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:42:02,647 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976236312] [2021-11-19 04:42:02,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:42:02,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:42:02,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:42:02,651 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:42:02,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:42:02,656 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:42:03,025 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:42:03,026 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:42:03,027 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:42:03,027 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:42:03,027 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-19 04:42:03,027 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:03,028 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:42:03,029 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:42:03,029 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration25_Loop [2021-11-19 04:42:03,030 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:42:03,030 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:42:03,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:42:03,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:42:03,675 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:42:03,676 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-19 04:42:03,678 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:03,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:03,680 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:03,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-19 04:42:03,682 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:42:03,682 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:42:03,705 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-19 04:42:03,705 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_mp_add_~carry~0#1=0, ULTIMATE.start_mp_add_~partial_sum~0#1=0} Honda state: {ULTIMATE.start_mp_add_~carry~0#1=0, ULTIMATE.start_mp_add_~partial_sum~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-19 04:42:03,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-11-19 04:42:03,734 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:03,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:03,736 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:03,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-11-19 04:42:03,751 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:42:03,751 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:42:03,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:03,816 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:03,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:03,817 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:03,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-11-19 04:42:03,822 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-19 04:42:03,822 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:42:05,245 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-19 04:42:05,249 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2021-11-19 04:42:05,250 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:42:05,250 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:42:05,250 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:42:05,250 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:42:05,250 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-19 04:42:05,250 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:05,250 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:42:05,250 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:42:05,250 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration25_Loop [2021-11-19 04:42:05,250 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:42:05,251 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:42:05,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:42:05,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:42:05,899 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:42:05,904 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-19 04:42:05,905 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:05,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:05,906 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:05,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-11-19 04:42:05,908 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:05,917 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:05,917 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:05,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:05,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:05,918 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:42:05,921 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:42:05,922 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:05,942 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:05,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:05,970 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:05,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:05,973 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:05,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-11-19 04:42:05,979 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:05,988 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:05,988 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:05,988 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:05,988 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:05,989 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:42:06,009 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:42:06,009 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:06,023 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:06,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:06,059 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-11-19 04:42:06,060 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:06,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:06,061 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:06,082 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:06,093 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:06,093 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:06,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:06,094 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:06,094 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-11-19 04:42:06,097 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-11-19 04:42:06,097 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:06,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-11-19 04:42:06,119 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:06,154 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-11-19 04:42:06,154 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:06,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:06,155 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:06,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-11-19 04:42:06,160 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:06,169 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:06,169 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:06,169 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:06,169 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:06,169 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-11-19 04:42:06,183 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-11-19 04:42:06,183 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:06,191 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:06,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:06,214 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-11-19 04:42:06,214 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:06,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:06,215 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:06,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-11-19 04:42:06,221 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:06,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:06,230 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:06,230 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:06,230 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:06,230 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-11-19 04:42:06,234 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-19 04:42:06,234 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:06,238 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:06,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:06,260 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:06,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:06,261 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:06,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-11-19 04:42:06,266 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:06,274 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:06,274 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:06,275 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:06,275 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:06,275 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-11-19 04:42:06,281 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-19 04:42:06,282 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:06,288 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:06,311 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-11-19 04:42:06,311 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-11-19 04:42:06,311 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:06,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:06,314 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:06,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-11-19 04:42:06,317 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:06,325 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:06,325 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:06,326 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:06,326 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:06,326 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-11-19 04:42:06,331 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-11-19 04:42:06,331 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:06,351 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:06,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:06,396 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:06,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:06,412 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:06,424 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:06,435 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:06,435 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:06,436 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:06,436 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:06,436 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-11-19 04:42:06,444 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-11-19 04:42:06,444 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:06,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-11-19 04:42:06,463 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:06,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:06,507 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-11-19 04:42:06,507 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:06,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:06,508 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:06,512 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:06,522 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:06,522 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-11-19 04:42:06,523 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:06,523 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:06,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:06,523 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-11-19 04:42:06,526 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-11-19 04:42:06,526 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:06,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-11-19 04:42:06,538 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:06,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:06,582 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:06,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:06,584 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:06,586 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:06,597 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:06,598 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-11-19 04:42:06,598 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:06,598 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:06,598 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:06,598 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-11-19 04:42:06,605 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-11-19 04:42:06,605 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:06,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-11-19 04:42:06,623 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:06,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:06,665 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-11-19 04:42:06,665 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:06,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:06,677 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:06,690 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:06,700 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:06,700 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-11-19 04:42:06,701 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:06,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:06,701 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:06,701 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-11-19 04:42:06,706 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-19 04:42:06,706 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:06,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-11-19 04:42:06,719 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:06,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:06,755 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:06,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:06,760 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:06,763 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:06,773 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:06,773 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-11-19 04:42:06,773 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:06,774 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:06,774 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:06,774 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-11-19 04:42:06,784 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-19 04:42:06,784 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:06,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-11-19 04:42:06,811 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:06,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:06,853 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-11-19 04:42:06,854 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:06,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:06,855 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:06,858 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:06,870 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:06,870 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-11-19 04:42:06,871 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:06,871 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:06,871 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:06,871 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-11-19 04:42:06,886 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-11-19 04:42:06,886 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:06,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-11-19 04:42:06,915 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:06,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:06,956 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:06,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:06,957 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:06,961 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:06,972 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:06,973 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-11-19 04:42:06,973 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:06,973 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:06,973 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:06,973 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-11-19 04:42:06,984 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-11-19 04:42:06,985 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:06,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-11-19 04:42:07,018 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:07,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:07,064 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-11-19 04:42:07,064 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:07,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:07,066 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:07,070 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:07,084 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:07,084 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-11-19 04:42:07,084 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:07,084 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:07,084 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:07,084 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-11-19 04:42:07,088 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-19 04:42:07,088 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:07,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-11-19 04:42:07,106 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:07,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:07,148 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:07,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:07,152 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:07,155 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:07,166 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:07,166 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-11-19 04:42:07,166 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:07,166 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:07,167 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:07,167 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-11-19 04:42:07,173 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-19 04:42:07,174 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:07,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-11-19 04:42:07,198 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:07,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:07,238 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-11-19 04:42:07,238 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:07,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:07,239 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:07,244 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:07,255 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:07,255 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-11-19 04:42:07,255 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:07,256 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:07,256 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:07,256 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-11-19 04:42:07,261 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:42:07,261 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:07,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-11-19 04:42:07,283 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:07,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:07,326 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:07,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:07,328 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:07,331 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:07,341 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:07,341 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-11-19 04:42:07,341 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:07,341 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:07,341 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:07,342 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-11-19 04:42:07,351 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:42:07,352 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:07,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-11-19 04:42:07,375 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:07,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:07,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:42:07,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 04:42:07,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-11-19 04:42:07,416 INFO L87 Difference]: Start difference. First operand 420 states and 462 transitions. cyclomatic complexity: 46 Second operand has 12 states, 11 states have (on average 12.0) internal successors, (132), 12 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:42:08,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:42:08,740 INFO L93 Difference]: Finished difference Result 489 states and 527 transitions. [2021-11-19 04:42:08,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 04:42:08,743 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 489 states and 527 transitions. [2021-11-19 04:42:08,746 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 73 [2021-11-19 04:42:08,749 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 489 states to 438 states and 472 transitions. [2021-11-19 04:42:08,750 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 438 [2021-11-19 04:42:08,750 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 438 [2021-11-19 04:42:08,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 438 states and 472 transitions. [2021-11-19 04:42:08,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:42:08,752 INFO L681 BuchiCegarLoop]: Abstraction has 438 states and 472 transitions. [2021-11-19 04:42:08,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states and 472 transitions. [2021-11-19 04:42:08,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 411. [2021-11-19 04:42:08,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 411 states have (on average 1.0802919708029197) internal successors, (444), 410 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:42:08,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 444 transitions. [2021-11-19 04:42:08,764 INFO L704 BuchiCegarLoop]: Abstraction has 411 states and 444 transitions. [2021-11-19 04:42:08,764 INFO L587 BuchiCegarLoop]: Abstraction has 411 states and 444 transitions. [2021-11-19 04:42:08,765 INFO L425 BuchiCegarLoop]: ======== Iteration 26============ [2021-11-19 04:42:08,765 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 411 states and 444 transitions. [2021-11-19 04:42:08,767 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 73 [2021-11-19 04:42:08,767 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:42:08,767 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:42:08,768 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:42:08,769 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:42:08,769 INFO L791 eck$LassoCheckResult]: Stem: 33371#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2); 33363#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~ret2#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 234770789;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 33350#L59 assume !(0 == mp_add_~a3~0#1 % 256); 33351#L59-1 mp_add_~nb~0#1 := 4; 33366#L69 assume 0 == mp_add_~b3~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 33358#L71 assume 0 == mp_add_~b2~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 33360#L73 assume 0 == mp_add_~b1~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 33383#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 33610#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 33611#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 33606#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 33607#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 33602#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 33603#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 33598#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 33599#L90 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b0~0#1 % 256; 33594#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 33595#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 33590#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 33591#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 33586#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 33587#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 33582#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 33583#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 33578#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 33579#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 33574#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 33575#L84 assume !(0 == mp_add_~i~0#1 % 256); 33570#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 33571#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 33566#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 33567#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 33728#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 33727#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 33726#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 33725#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 33724#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 33723#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 33722#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 33721#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 33719#L84 assume !(0 == mp_add_~i~0#1 % 256); 33717#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 33714#L85-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a2~0#1 % 256; 33715#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 33736#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 33536#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 33735#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 33757#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 33756#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 33755#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 33754#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 33753#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 33752#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 33751#L84 assume !(0 == mp_add_~i~0#1 % 256); 33750#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 33749#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 33711#L86-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a3~0#1 % 256; 33712#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 33356#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 33357#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 33367#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 33361#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 33362#L101-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~r3~0#1 := mp_add_~partial_sum~0#1; 33376#L102-1 [2021-11-19 04:42:08,769 INFO L793 eck$LassoCheckResult]: Loop: 33376#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 33729#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 33720#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 33718#L84 assume !(0 == mp_add_~i~0#1 % 256); 33716#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 33374#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 33364#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 33365#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 33386#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 33760#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 33759#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 33758#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 33375#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 33376#L102-1 [2021-11-19 04:42:08,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:42:08,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1728940926, now seen corresponding path program 1 times [2021-11-19 04:42:08,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:42:08,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309161389] [2021-11-19 04:42:08,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:42:08,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:42:08,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:42:08,799 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:42:08,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:42:08,836 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:42:08,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:42:08,837 INFO L85 PathProgramCache]: Analyzing trace with hash 672830572, now seen corresponding path program 2 times [2021-11-19 04:42:08,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:42:08,837 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024137879] [2021-11-19 04:42:08,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:42:08,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:42:08,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:42:08,842 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:42:08,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:42:08,847 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:42:08,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:42:08,847 INFO L85 PathProgramCache]: Analyzing trace with hash 334650383, now seen corresponding path program 2 times [2021-11-19 04:42:08,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:42:08,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610891403] [2021-11-19 04:42:08,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:42:08,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:42:08,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:42:09,224 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 40 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:42:09,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:42:09,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610891403] [2021-11-19 04:42:09,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610891403] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:42:09,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [702061167] [2021-11-19 04:42:09,225 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 04:42:09,225 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:42:09,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:09,226 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:42:09,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2021-11-19 04:42:09,297 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-19 04:42:09,297 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 04:42:09,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 04:42:09,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:42:10,556 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 24 proven. 16 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-11-19 04:42:10,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:42:15,079 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 24 proven. 16 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-11-19 04:42:15,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [702061167] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:42:15,080 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 04:42:15,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 14 [2021-11-19 04:42:15,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536395641] [2021-11-19 04:42:15,081 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 04:42:15,381 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:42:15,381 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:42:15,381 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:42:15,381 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:42:15,382 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-19 04:42:15,382 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:15,382 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:42:15,382 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:42:15,382 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration26_Loop [2021-11-19 04:42:15,382 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:42:15,382 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:42:15,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:42:15,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:42:15,850 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:42:15,850 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-19 04:42:15,851 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:15,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:15,855 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:15,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-11-19 04:42:15,857 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:42:15,857 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:42:15,904 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-19 04:42:15,904 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_mp_add_~carry~0#1=0, ULTIMATE.start_mp_add_~partial_sum~0#1=0} Honda state: {ULTIMATE.start_mp_add_~carry~0#1=0, ULTIMATE.start_mp_add_~partial_sum~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-19 04:42:15,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:15,942 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:15,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:15,943 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:15,952 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:42:15,952 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:42:15,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-11-19 04:42:16,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:16,033 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:16,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:16,034 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:16,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-11-19 04:42:16,035 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-19 04:42:16,035 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:42:16,583 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-19 04:42:16,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:16,587 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:42:16,588 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:42:16,588 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:42:16,588 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:42:16,588 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-19 04:42:16,588 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:16,588 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:42:16,588 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:42:16,588 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration26_Loop [2021-11-19 04:42:16,588 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:42:16,588 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:42:16,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:42:16,640 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:42:17,009 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:42:17,010 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-19 04:42:17,010 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:17,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:17,012 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:17,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-11-19 04:42:17,016 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:17,029 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:17,029 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:17,029 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:17,029 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:17,029 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:42:17,034 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:42:17,034 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:17,047 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:17,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:17,077 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:17,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:17,078 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:17,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-11-19 04:42:17,079 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:17,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:17,089 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:17,089 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:17,089 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:17,089 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:42:17,090 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:42:17,090 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:17,095 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:17,118 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2021-11-19 04:42:17,118 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-11-19 04:42:17,118 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:17,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:17,119 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:17,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-11-19 04:42:17,123 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:17,130 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:17,130 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:17,131 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:17,131 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:17,131 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-11-19 04:42:17,134 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-11-19 04:42:17,134 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:17,139 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:17,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:17,161 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:17,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:17,164 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:17,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-11-19 04:42:17,167 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:17,175 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:17,175 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:17,175 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:17,175 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:17,175 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-11-19 04:42:17,177 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-11-19 04:42:17,177 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:17,181 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:17,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:17,208 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-11-19 04:42:17,208 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:17,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:17,209 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:17,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-11-19 04:42:17,210 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:17,218 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:17,219 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:17,219 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:17,219 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:17,219 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-11-19 04:42:17,223 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-19 04:42:17,224 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:17,255 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:17,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2021-11-19 04:42:17,294 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:17,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:17,295 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:17,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-11-19 04:42:17,297 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:17,305 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:17,305 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:17,305 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:17,305 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:17,306 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-11-19 04:42:17,308 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-19 04:42:17,308 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:17,312 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:17,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:17,335 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-11-19 04:42:17,335 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:17,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:17,336 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:17,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-11-19 04:42:17,338 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:17,346 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:17,347 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:17,347 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:17,347 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:17,347 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-11-19 04:42:17,355 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-11-19 04:42:17,355 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:17,362 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:17,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:17,386 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:17,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:17,388 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:17,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-11-19 04:42:17,390 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:17,398 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:17,398 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:17,398 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:17,398 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:17,398 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-11-19 04:42:17,401 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-11-19 04:42:17,401 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:17,414 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:17,435 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2021-11-19 04:42:17,435 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-11-19 04:42:17,435 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:17,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:17,436 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:17,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-11-19 04:42:17,437 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:17,445 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:17,446 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-11-19 04:42:17,446 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:17,446 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:17,446 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:17,446 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-11-19 04:42:17,454 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-11-19 04:42:17,454 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:17,471 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:17,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:17,521 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:17,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:17,523 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:17,531 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:17,541 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:17,541 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-11-19 04:42:17,541 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:17,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:17,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:17,541 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-11-19 04:42:17,544 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-11-19 04:42:17,544 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:17,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-11-19 04:42:17,555 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:17,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:17,585 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-11-19 04:42:17,585 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:17,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:17,586 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:17,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-11-19 04:42:17,589 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:17,597 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:17,597 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-11-19 04:42:17,598 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:17,598 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:17,598 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:17,598 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-11-19 04:42:17,604 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-19 04:42:17,604 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:17,619 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:17,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:17,644 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:17,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:17,646 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:17,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-11-19 04:42:17,653 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:17,661 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:17,661 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-11-19 04:42:17,661 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:17,661 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:17,661 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:17,661 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-11-19 04:42:17,663 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-19 04:42:17,664 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:17,670 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:17,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:17,691 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-11-19 04:42:17,691 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:17,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:17,692 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:17,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-11-19 04:42:17,696 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:17,704 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:17,704 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-11-19 04:42:17,704 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:17,704 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:17,704 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:17,704 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-11-19 04:42:17,712 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-11-19 04:42:17,713 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:17,745 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:17,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:17,790 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:17,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:17,792 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:17,794 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:17,805 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:17,805 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-11-19 04:42:17,805 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:17,805 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:17,805 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:17,805 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-11-19 04:42:17,810 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-11-19 04:42:17,810 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:17,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-11-19 04:42:17,835 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:17,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:17,877 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-11-19 04:42:17,877 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:17,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:17,880 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:17,882 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:17,892 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:17,892 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-11-19 04:42:17,892 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:17,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:17,893 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:17,893 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-11-19 04:42:17,898 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-19 04:42:17,898 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:17,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-11-19 04:42:17,927 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:17,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:17,969 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:17,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:17,971 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:17,976 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:17,986 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:17,986 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-11-19 04:42:17,986 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:17,986 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:17,986 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:17,986 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-11-19 04:42:17,989 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-19 04:42:17,989 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:17,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-11-19 04:42:18,011 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:18,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:18,053 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-11-19 04:42:18,054 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:18,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:18,055 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:18,057 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:18,066 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:18,067 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-11-19 04:42:18,067 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:18,067 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:18,067 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:18,067 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-11-19 04:42:18,075 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:42:18,075 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:18,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-11-19 04:42:18,103 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:18,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:18,138 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:18,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:18,140 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:18,142 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:18,152 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:18,152 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-11-19 04:42:18,152 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:18,152 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:18,153 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:18,153 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-11-19 04:42:18,157 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:42:18,157 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:18,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-11-19 04:42:18,167 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:18,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:18,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:42:18,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-19 04:42:18,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-11-19 04:42:18,202 INFO L87 Difference]: Start difference. First operand 411 states and 444 transitions. cyclomatic complexity: 38 Second operand has 14 states, 14 states have (on average 10.142857142857142) internal successors, (142), 14 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:42:20,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:42:20,673 INFO L93 Difference]: Finished difference Result 390 states and 414 transitions. [2021-11-19 04:42:20,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-19 04:42:20,674 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 390 states and 414 transitions. [2021-11-19 04:42:20,676 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-11-19 04:42:20,678 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 390 states to 262 states and 276 transitions. [2021-11-19 04:42:20,679 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 262 [2021-11-19 04:42:20,679 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 262 [2021-11-19 04:42:20,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 262 states and 276 transitions. [2021-11-19 04:42:20,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:42:20,680 INFO L681 BuchiCegarLoop]: Abstraction has 262 states and 276 transitions. [2021-11-19 04:42:20,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states and 276 transitions. [2021-11-19 04:42:20,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 168. [2021-11-19 04:42:20,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 168 states have (on average 1.0714285714285714) internal successors, (180), 167 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:42:20,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 180 transitions. [2021-11-19 04:42:20,686 INFO L704 BuchiCegarLoop]: Abstraction has 168 states and 180 transitions. [2021-11-19 04:42:20,686 INFO L587 BuchiCegarLoop]: Abstraction has 168 states and 180 transitions. [2021-11-19 04:42:20,686 INFO L425 BuchiCegarLoop]: ======== Iteration 27============ [2021-11-19 04:42:20,686 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 168 states and 180 transitions. [2021-11-19 04:42:20,687 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-11-19 04:42:20,687 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:42:20,687 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:42:20,688 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:42:20,688 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:42:20,689 INFO L791 eck$LassoCheckResult]: Stem: 34656#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2); 34648#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~ret2#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 234770789;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 34642#L59 assume !(0 == mp_add_~a3~0#1 % 256); 34643#L59-1 mp_add_~nb~0#1 := 4; 34651#L69 assume 0 == mp_add_~b3~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 34646#L71 assume 0 == mp_add_~b2~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 34647#L73 assume 0 == mp_add_~b1~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 34665#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 34794#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 34793#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 34792#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 34791#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 34790#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 34789#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 34788#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 34787#L90 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b0~0#1 % 256; 34786#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 34785#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 34784#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 34783#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 34782#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 34781#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 34780#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 34779#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 34778#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 34777#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 34776#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 34775#L84 assume !(0 == mp_add_~i~0#1 % 256); 34774#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 34773#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 34772#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 34771#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 34770#L90 assume !(0 == mp_add_~i~0#1 % 256); 34769#L90-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b1~0#1 % 256; 34768#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 34767#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 34766#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 34765#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 34764#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 34763#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 34762#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 34761#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 34760#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 34759#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 34758#L84 assume !(0 == mp_add_~i~0#1 % 256); 34757#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 34756#L85-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a2~0#1 % 256; 34755#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 34754#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 34753#L90 assume !(0 == mp_add_~i~0#1 % 256); 34752#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 34751#L91-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b2~0#1 % 256; 34750#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 34748#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 34746#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 34747#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 34742#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 34743#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 34738#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 34739#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 34734#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 34735#L84 assume !(0 == mp_add_~i~0#1 % 256); 34730#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 34731#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 34726#L86-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a3~0#1 % 256; 34727#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 34719#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 34802#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 34805#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 34804#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 34803#L101-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~r3~0#1 := mp_add_~partial_sum~0#1; 34660#L102-1 [2021-11-19 04:42:20,689 INFO L793 eck$LassoCheckResult]: Loop: 34660#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 34657#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 34658#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 34663#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 34661#L90 assume !(0 == mp_add_~i~0#1 % 256); 34662#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 34638#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 34639#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 34640#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 34641#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 34652#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 34644#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 34645#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 34660#L102-1 [2021-11-19 04:42:20,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:42:20,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1032141820, now seen corresponding path program 1 times [2021-11-19 04:42:20,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:42:20,690 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762621940] [2021-11-19 04:42:20,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:42:20,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:42:20,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:42:20,899 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 64 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-19 04:42:20,899 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:42:20,899 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762621940] [2021-11-19 04:42:20,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762621940] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:42:20,900 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789586184] [2021-11-19 04:42:20,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:42:20,900 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:42:20,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:20,904 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:42:20,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2021-11-19 04:42:21,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:42:21,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-19 04:42:21,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:42:21,482 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-19 04:42:21,482 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 04:42:21,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789586184] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:42:21,482 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:42:21,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2021-11-19 04:42:21,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282340381] [2021-11-19 04:42:21,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:42:21,483 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-19 04:42:21,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:42:21,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 1 times [2021-11-19 04:42:21,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:42:21,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013929558] [2021-11-19 04:42:21,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:42:21,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:42:21,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:42:21,487 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:42:21,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:42:21,492 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:42:21,816 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:42:21,816 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:42:21,816 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:42:21,816 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:42:21,816 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-19 04:42:21,816 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:21,816 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:42:21,816 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:42:21,816 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration27_Loop [2021-11-19 04:42:21,816 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:42:21,817 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:42:21,817 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:42:21,835 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:42:22,264 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:42:22,264 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-19 04:42:22,265 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:22,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:22,266 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:22,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-11-19 04:42:22,268 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:42:22,268 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:42:22,286 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-19 04:42:22,286 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_mp_add_~carry~0#1=0, ULTIMATE.start_mp_add_~partial_sum~0#1=0} Honda state: {ULTIMATE.start_mp_add_~carry~0#1=0, ULTIMATE.start_mp_add_~partial_sum~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-19 04:42:22,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:22,311 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:22,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:22,312 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:22,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-11-19 04:42:22,315 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:42:22,315 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:42:22,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2021-11-19 04:42:22,391 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:22,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:22,392 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:22,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-11-19 04:42:22,393 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-19 04:42:22,393 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:42:22,873 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-19 04:42:22,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:22,877 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:42:22,877 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:42:22,878 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:42:22,878 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:42:22,878 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-19 04:42:22,878 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:22,878 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:42:22,878 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:42:22,878 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration27_Loop [2021-11-19 04:42:22,878 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:42:22,878 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:42:22,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:42:22,916 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:42:23,356 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:42:23,356 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-19 04:42:23,357 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:23,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:23,358 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:23,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-11-19 04:42:23,359 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:23,368 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:23,369 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:23,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:23,369 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:23,369 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:42:23,371 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:42:23,371 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:23,375 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:23,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:23,400 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:23,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:23,401 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:23,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-11-19 04:42:23,402 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:23,411 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:23,411 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:23,411 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:23,411 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:23,411 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:42:23,412 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:42:23,412 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:23,414 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:23,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2021-11-19 04:42:23,437 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-11-19 04:42:23,437 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:23,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:23,438 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:23,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-11-19 04:42:23,441 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:23,449 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:23,449 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:23,449 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:23,449 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:23,449 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-11-19 04:42:23,452 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-11-19 04:42:23,452 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:23,456 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:23,476 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2021-11-19 04:42:23,476 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:23,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:23,477 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:23,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-11-19 04:42:23,478 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:23,488 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:23,488 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:23,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:23,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:23,489 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-11-19 04:42:23,490 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-11-19 04:42:23,491 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:23,507 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:23,541 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2021-11-19 04:42:23,541 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-11-19 04:42:23,541 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:23,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:23,542 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:23,552 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:23,562 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:23,562 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:23,562 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:23,562 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:23,562 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-11-19 04:42:23,566 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-19 04:42:23,567 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:23,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-11-19 04:42:23,583 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:23,614 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2021-11-19 04:42:23,614 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:23,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:23,615 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:23,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-11-19 04:42:23,617 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:23,624 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:23,624 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:23,624 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:23,624 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:23,625 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-11-19 04:42:23,626 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-19 04:42:23,626 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:23,630 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:23,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:23,650 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-11-19 04:42:23,651 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:23,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:23,651 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:23,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-11-19 04:42:23,654 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:23,662 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:23,662 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:23,662 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:23,662 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:23,662 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-11-19 04:42:23,667 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-11-19 04:42:23,667 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:23,674 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:23,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:23,696 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:23,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:23,697 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:23,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2021-11-19 04:42:23,699 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:23,707 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:23,707 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:23,707 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:23,707 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:23,707 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-11-19 04:42:23,710 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-11-19 04:42:23,710 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:23,714 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:23,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Ended with exit code 0 [2021-11-19 04:42:23,734 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-11-19 04:42:23,734 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:23,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:23,735 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:23,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-11-19 04:42:23,737 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:23,744 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:23,744 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-11-19 04:42:23,744 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:23,744 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:23,744 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:23,745 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-11-19 04:42:23,748 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-11-19 04:42:23,748 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:23,772 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:23,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:23,810 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:23,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:23,816 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:23,823 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:23,834 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:23,834 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-11-19 04:42:23,834 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:23,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:23,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:23,835 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-11-19 04:42:23,837 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-11-19 04:42:23,837 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:23,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2021-11-19 04:42:23,855 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:23,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:23,892 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-11-19 04:42:23,893 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:23,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:23,894 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:23,896 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:23,906 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:23,906 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-11-19 04:42:23,907 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:23,907 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:23,907 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:23,907 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-11-19 04:42:23,913 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-19 04:42:23,913 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:23,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2021-11-19 04:42:23,935 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:23,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:23,972 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:23,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:23,973 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:23,975 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:23,987 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:23,987 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-11-19 04:42:23,987 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:23,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:23,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:23,987 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-11-19 04:42:23,991 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-19 04:42:23,991 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:23,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2021-11-19 04:42:24,015 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:24,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:24,050 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-11-19 04:42:24,050 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:24,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:24,051 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:24,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2021-11-19 04:42:24,056 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:24,065 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:24,066 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-11-19 04:42:24,066 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:24,066 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:24,066 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:24,066 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-11-19 04:42:24,073 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-11-19 04:42:24,074 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:24,099 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:24,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:24,132 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:24,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:24,136 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:24,140 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:24,150 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:24,150 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-11-19 04:42:24,150 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:24,151 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:24,151 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:24,151 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-11-19 04:42:24,155 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-11-19 04:42:24,155 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:24,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2021-11-19 04:42:24,171 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:24,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:24,205 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-11-19 04:42:24,205 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:24,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:24,206 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:24,208 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:24,219 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:24,219 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-11-19 04:42:24,219 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:24,219 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:24,219 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:24,219 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-11-19 04:42:24,224 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-19 04:42:24,225 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:24,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2021-11-19 04:42:24,251 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:24,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:24,287 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:24,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:24,289 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:24,292 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:24,303 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:24,303 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-11-19 04:42:24,304 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:24,304 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:24,304 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:24,304 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-11-19 04:42:24,307 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-19 04:42:24,307 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:24,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2021-11-19 04:42:24,324 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:24,354 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Ended with exit code 0 [2021-11-19 04:42:24,354 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-11-19 04:42:24,354 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:24,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:24,355 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:24,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2021-11-19 04:42:24,357 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:24,366 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:24,366 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-11-19 04:42:24,366 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:24,366 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:24,366 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:24,367 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-11-19 04:42:24,373 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:42:24,374 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:24,387 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:24,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Ended with exit code 0 [2021-11-19 04:42:24,408 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:24,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:24,409 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:24,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2021-11-19 04:42:24,411 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:24,418 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:24,419 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-11-19 04:42:24,419 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:24,419 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:24,419 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:24,419 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-11-19 04:42:24,422 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:42:24,423 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:24,440 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:24,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Ended with exit code 0 [2021-11-19 04:42:24,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:42:24,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 04:42:24,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-19 04:42:24,463 INFO L87 Difference]: Start difference. First operand 168 states and 180 transitions. cyclomatic complexity: 13 Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:42:24,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:42:24,624 INFO L93 Difference]: Finished difference Result 223 states and 237 transitions. [2021-11-19 04:42:24,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 04:42:24,625 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 223 states and 237 transitions. [2021-11-19 04:42:24,628 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 26 [2021-11-19 04:42:24,632 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 223 states to 198 states and 211 transitions. [2021-11-19 04:42:24,632 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 198 [2021-11-19 04:42:24,633 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 198 [2021-11-19 04:42:24,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 198 states and 211 transitions. [2021-11-19 04:42:24,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:42:24,635 INFO L681 BuchiCegarLoop]: Abstraction has 198 states and 211 transitions. [2021-11-19 04:42:24,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states and 211 transitions. [2021-11-19 04:42:24,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 168. [2021-11-19 04:42:24,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 168 states have (on average 1.0654761904761905) internal successors, (179), 167 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:42:24,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 179 transitions. [2021-11-19 04:42:24,642 INFO L704 BuchiCegarLoop]: Abstraction has 168 states and 179 transitions. [2021-11-19 04:42:24,642 INFO L587 BuchiCegarLoop]: Abstraction has 168 states and 179 transitions. [2021-11-19 04:42:24,642 INFO L425 BuchiCegarLoop]: ======== Iteration 28============ [2021-11-19 04:42:24,642 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 168 states and 179 transitions. [2021-11-19 04:42:24,643 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-11-19 04:42:24,643 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:42:24,643 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:42:24,644 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:42:24,644 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:42:24,645 INFO L791 eck$LassoCheckResult]: Stem: 35273#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2); 35265#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~ret2#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 234770789;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 35254#L59 assume !(0 == mp_add_~a3~0#1 % 256); 35255#L59-1 mp_add_~nb~0#1 := 4; 35268#L69 assume 0 == mp_add_~b3~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 35261#L71 assume 0 == mp_add_~b2~0#1 % 256;mp_add_~nb~0#1 := mp_add_~nb~0#1 % 256 - 1; 35262#L73 assume !(0 == mp_add_~b1~0#1 % 256); 35284#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 35285#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 35327#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 35326#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 35325#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 35324#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 35323#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 35322#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 35321#L90 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b0~0#1 % 256; 35320#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 35319#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 35318#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 35317#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 35316#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 35315#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 35314#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 35313#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 35312#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 35311#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 35310#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 35309#L84 assume !(0 == mp_add_~i~0#1 % 256); 35308#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 35307#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 35306#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 35305#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 35304#L90 assume !(0 == mp_add_~i~0#1 % 256); 35303#L90-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b1~0#1 % 256; 35302#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 35301#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 35300#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 35299#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 35298#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 35297#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 35296#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 35295#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 35294#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 35293#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 35292#L84 assume !(0 == mp_add_~i~0#1 % 256); 35291#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 35289#L85-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a2~0#1 % 256; 35290#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 35341#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 35340#L90 assume !(0 == mp_add_~i~0#1 % 256); 35339#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 35338#L91-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b2~0#1 % 256; 35336#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 35337#L89 assume mp_add_~partial_sum~0#1 % 65536 > 255;mp_add_~partial_sum~0#1 := ~bitwiseAnd(mp_add_~partial_sum~0#1 % 65536, 255);mp_add_~carry~0#1 := 1; 35366#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 35365#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 35364#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 35363#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 35362#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 35361#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 35360#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 35359#L84 assume !(0 == mp_add_~i~0#1 % 256); 35358#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 35357#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 35356#L86-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a3~0#1 % 256; 35355#L83-1 assume !(mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256); 35258#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 35260#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 35354#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 35353#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 35352#L101-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~r3~0#1 := mp_add_~partial_sum~0#1; 35277#L102-1 [2021-11-19 04:42:24,645 INFO L793 eck$LassoCheckResult]: Loop: 35277#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 35351#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 35282#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 35283#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 35348#L90 assume !(0 == mp_add_~i~0#1 % 256); 35350#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 35349#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 35346#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 35345#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 35344#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 35269#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 35263#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 35264#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 35277#L102-1 [2021-11-19 04:42:24,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:42:24,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1576645638, now seen corresponding path program 1 times [2021-11-19 04:42:24,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:42:24,646 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368034355] [2021-11-19 04:42:24,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:42:24,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:42:24,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:42:24,856 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 64 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-19 04:42:24,856 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:42:24,856 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368034355] [2021-11-19 04:42:24,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368034355] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:42:24,856 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345663320] [2021-11-19 04:42:24,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:42:24,857 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:42:24,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:24,860 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:42:24,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2021-11-19 04:42:25,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:42:25,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 04:42:25,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:42:25,524 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-19 04:42:25,524 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 04:42:25,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1345663320] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:42:25,524 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:42:25,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2021-11-19 04:42:25,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135363390] [2021-11-19 04:42:25,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:42:25,525 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-19 04:42:25,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:42:25,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 2 times [2021-11-19 04:42:25,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:42:25,525 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220118269] [2021-11-19 04:42:25,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:42:25,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:42:25,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:42:25,528 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:42:25,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:42:25,532 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:42:25,871 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:42:25,871 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:42:25,871 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:42:25,871 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:42:25,871 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-19 04:42:25,871 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:25,871 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:42:25,871 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:42:25,871 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration28_Loop [2021-11-19 04:42:25,871 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:42:25,871 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:42:25,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:42:25,924 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:42:26,296 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:42:26,296 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-19 04:42:26,296 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:26,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:26,298 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:26,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2021-11-19 04:42:26,299 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:42:26,299 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:42:26,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Ended with exit code 0 [2021-11-19 04:42:26,380 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:26,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:26,381 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:26,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2021-11-19 04:42:26,384 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-19 04:42:26,384 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:42:28,009 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-19 04:42:28,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Ended with exit code 0 [2021-11-19 04:42:28,013 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:42:28,013 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:42:28,014 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:42:28,014 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:42:28,014 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-19 04:42:28,014 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:28,014 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:42:28,014 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:42:28,014 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration28_Loop [2021-11-19 04:42:28,014 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:42:28,014 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:42:28,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:42:28,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:42:28,554 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:42:28,554 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-19 04:42:28,554 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:28,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:28,555 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:28,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Waiting until timeout for monitored process [2021-11-19 04:42:28,556 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:28,564 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:28,565 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:28,565 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:28,565 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:28,565 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:42:28,567 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:42:28,567 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:28,570 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:28,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:28,592 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:28,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:28,592 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:28,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process [2021-11-19 04:42:28,594 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:28,602 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:28,602 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:28,602 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:28,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:28,603 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:42:28,604 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:42:28,604 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:28,607 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:28,628 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Ended with exit code 0 [2021-11-19 04:42:28,628 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-11-19 04:42:28,628 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:28,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:28,629 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:28,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2021-11-19 04:42:28,630 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:28,638 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:28,638 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:28,638 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:28,638 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:28,638 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-11-19 04:42:28,641 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-11-19 04:42:28,641 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:28,645 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:28,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Ended with exit code 0 [2021-11-19 04:42:28,665 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:28,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:28,666 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:28,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2021-11-19 04:42:28,684 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:28,691 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:28,691 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:28,691 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:28,691 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:28,691 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-11-19 04:42:28,697 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-11-19 04:42:28,697 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:28,700 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:28,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:28,721 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-11-19 04:42:28,721 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:28,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:28,722 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:28,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Waiting until timeout for monitored process [2021-11-19 04:42:28,723 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:28,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:28,731 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:28,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:28,732 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:28,732 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-11-19 04:42:28,735 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-19 04:42:28,735 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:28,741 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:28,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:28,763 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:28,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:28,764 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:28,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Waiting until timeout for monitored process [2021-11-19 04:42:28,765 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:28,772 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:28,773 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:28,773 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:28,773 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:28,773 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-11-19 04:42:28,775 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-19 04:42:28,775 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:28,778 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:28,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Ended with exit code 0 [2021-11-19 04:42:28,798 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-11-19 04:42:28,799 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:28,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:28,799 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:28,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Waiting until timeout for monitored process [2021-11-19 04:42:28,801 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:28,815 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:28,816 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:28,816 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:28,816 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:28,816 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-11-19 04:42:28,826 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-11-19 04:42:28,826 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:28,843 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:28,864 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Ended with exit code 0 [2021-11-19 04:42:28,864 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:28,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:28,865 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:28,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Waiting until timeout for monitored process [2021-11-19 04:42:28,866 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:28,874 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:28,874 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:28,874 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:28,874 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:28,874 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-11-19 04:42:28,877 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-11-19 04:42:28,877 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:28,898 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:28,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:28,930 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-11-19 04:42:28,931 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:28,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:28,936 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:28,940 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:28,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Waiting until timeout for monitored process [2021-11-19 04:42:28,949 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:28,949 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-11-19 04:42:28,949 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:28,950 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:28,950 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:28,950 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-11-19 04:42:28,953 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-11-19 04:42:28,953 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:28,961 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:28,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Ended with exit code 0 [2021-11-19 04:42:28,982 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:28,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:28,983 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:28,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Waiting until timeout for monitored process [2021-11-19 04:42:28,984 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:28,991 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:28,991 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-11-19 04:42:28,992 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:28,992 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:28,992 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:28,992 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-11-19 04:42:28,993 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-11-19 04:42:28,993 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:28,997 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:29,019 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Ended with exit code 0 [2021-11-19 04:42:29,019 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-11-19 04:42:29,019 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:29,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:29,020 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:29,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Waiting until timeout for monitored process [2021-11-19 04:42:29,022 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:29,031 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:29,031 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-11-19 04:42:29,031 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:29,031 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:29,031 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:29,031 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-11-19 04:42:29,036 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-19 04:42:29,036 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:29,050 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:29,073 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Ended with exit code 0 [2021-11-19 04:42:29,074 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:29,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:29,074 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:29,076 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:29,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Waiting until timeout for monitored process [2021-11-19 04:42:29,084 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:29,084 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-11-19 04:42:29,084 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:29,084 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:29,084 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:29,084 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-11-19 04:42:29,087 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-19 04:42:29,087 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:29,093 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:29,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Ended with exit code 0 [2021-11-19 04:42:29,113 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-11-19 04:42:29,113 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:29,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:29,114 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:29,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Waiting until timeout for monitored process [2021-11-19 04:42:29,115 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:29,123 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:29,123 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-11-19 04:42:29,124 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:29,124 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:29,124 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:29,124 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-11-19 04:42:29,129 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-11-19 04:42:29,129 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:29,145 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:29,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Ended with exit code 0 [2021-11-19 04:42:29,166 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:29,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:29,166 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:29,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Waiting until timeout for monitored process [2021-11-19 04:42:29,168 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:29,175 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:29,176 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-11-19 04:42:29,176 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:29,176 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:29,176 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:29,176 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-11-19 04:42:29,183 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-11-19 04:42:29,183 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:29,191 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:29,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:29,212 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-11-19 04:42:29,212 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:29,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:29,212 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:29,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Waiting until timeout for monitored process [2021-11-19 04:42:29,214 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:29,222 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:29,222 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-11-19 04:42:29,222 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:29,222 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:29,222 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:29,222 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-11-19 04:42:29,225 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-19 04:42:29,226 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:29,236 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:29,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Ended with exit code 0 [2021-11-19 04:42:29,257 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:29,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:29,258 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:29,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Waiting until timeout for monitored process [2021-11-19 04:42:29,259 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:29,267 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:29,267 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-11-19 04:42:29,267 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:29,267 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:29,267 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:29,267 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-11-19 04:42:29,269 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-19 04:42:29,269 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:29,273 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:29,293 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Ended with exit code 0 [2021-11-19 04:42:29,293 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-11-19 04:42:29,293 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:29,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:29,294 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:29,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Waiting until timeout for monitored process [2021-11-19 04:42:29,296 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:29,303 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:29,303 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-11-19 04:42:29,303 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:29,304 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:29,304 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:29,304 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-11-19 04:42:29,309 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:42:29,309 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:29,319 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:29,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:29,341 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:29,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:29,342 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:29,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Waiting until timeout for monitored process [2021-11-19 04:42:29,343 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:29,351 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:29,351 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-11-19 04:42:29,351 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:29,352 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:29,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:29,352 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-11-19 04:42:29,355 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:42:29,355 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:29,362 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:29,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Ended with exit code 0 [2021-11-19 04:42:29,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:42:29,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 04:42:29,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-11-19 04:42:29,383 INFO L87 Difference]: Start difference. First operand 168 states and 179 transitions. cyclomatic complexity: 12 Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:42:29,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:42:29,493 INFO L93 Difference]: Finished difference Result 138 states and 145 transitions. [2021-11-19 04:42:29,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 04:42:29,494 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 138 states and 145 transitions. [2021-11-19 04:42:29,495 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-11-19 04:42:29,496 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 138 states to 94 states and 99 transitions. [2021-11-19 04:42:29,496 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 94 [2021-11-19 04:42:29,496 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 94 [2021-11-19 04:42:29,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 94 states and 99 transitions. [2021-11-19 04:42:29,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:42:29,497 INFO L681 BuchiCegarLoop]: Abstraction has 94 states and 99 transitions. [2021-11-19 04:42:29,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states and 99 transitions. [2021-11-19 04:42:29,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2021-11-19 04:42:29,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 94 states have (on average 1.053191489361702) internal successors, (99), 93 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:42:29,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 99 transitions. [2021-11-19 04:42:29,500 INFO L704 BuchiCegarLoop]: Abstraction has 94 states and 99 transitions. [2021-11-19 04:42:29,500 INFO L587 BuchiCegarLoop]: Abstraction has 94 states and 99 transitions. [2021-11-19 04:42:29,500 INFO L425 BuchiCegarLoop]: ======== Iteration 29============ [2021-11-19 04:42:29,500 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 94 states and 99 transitions. [2021-11-19 04:42:29,501 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-11-19 04:42:29,501 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:42:29,501 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:42:29,502 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:42:29,502 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:42:29,502 INFO L791 eck$LassoCheckResult]: Stem: 35786#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2); 35787#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~ret2#1, main_~a~0#1, main_~b~0#1, main_~r~1#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~r~1#1;main_~b~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 234770789;assume { :begin_inline_mp_add } true;mp_add_#in~a#1, mp_add_#in~b#1 := main_~a~0#1, main_~b~0#1;havoc mp_add_#res#1;havoc mp_add_~a#1, mp_add_~b#1, mp_add_~a0~0#1, mp_add_~a1~0#1, mp_add_~a2~0#1, mp_add_~a3~0#1, mp_add_~b0~0#1, mp_add_~b1~0#1, mp_add_~b2~0#1, mp_add_~b3~0#1, mp_add_~r0~0#1, mp_add_~r1~0#1, mp_add_~r2~0#1, mp_add_~r3~0#1, mp_add_~carry~0#1, mp_add_~partial_sum~0#1, mp_add_~r~0#1, mp_add_~i~0#1, mp_add_~na~0#1, mp_add_~nb~0#1;mp_add_~a#1 := mp_add_#in~a#1;mp_add_~b#1 := mp_add_#in~b#1;havoc mp_add_~a0~0#1;havoc mp_add_~a1~0#1;havoc mp_add_~a2~0#1;havoc mp_add_~a3~0#1;havoc mp_add_~b0~0#1;havoc mp_add_~b1~0#1;havoc mp_add_~b2~0#1;havoc mp_add_~b3~0#1;havoc mp_add_~r0~0#1;havoc mp_add_~r1~0#1;havoc mp_add_~r2~0#1;havoc mp_add_~r3~0#1;havoc mp_add_~carry~0#1;havoc mp_add_~partial_sum~0#1;havoc mp_add_~r~0#1;havoc mp_add_~i~0#1;havoc mp_add_~na~0#1;havoc mp_add_~nb~0#1;mp_add_~a0~0#1 := mp_add_~a#1;mp_add_~a1~0#1 := mp_add_~a#1 / 256;mp_add_~a2~0#1 := mp_add_~a#1 / 65536;mp_add_~a3~0#1 := mp_add_~a#1 / 16777216;mp_add_~b0~0#1 := mp_add_~b#1;mp_add_~b1~0#1 := mp_add_~b#1 / 256;mp_add_~b2~0#1 := mp_add_~b#1 / 65536;mp_add_~b3~0#1 := mp_add_~b#1 / 16777216;mp_add_~na~0#1 := 4; 35799#L59 assume !(0 == mp_add_~a3~0#1 % 256); 35800#L59-1 mp_add_~nb~0#1 := 4; 35814#L69 assume !(0 == mp_add_~b3~0#1 % 256); 35812#L69-1 mp_add_~carry~0#1 := 0;mp_add_~i~0#1 := 0; 35813#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 35821#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 35819#L84 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a0~0#1 % 256; 35820#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 35839#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 35838#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 35837#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 35836#L90 assume 0 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b0~0#1 % 256; 35835#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 35834#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 35833#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 35832#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 35831#L95-1 assume 0 == mp_add_~i~0#1 % 256;mp_add_~r0~0#1 := mp_add_~partial_sum~0#1; 35830#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 35829#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 35828#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 35827#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 35826#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 35825#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 35824#L84 assume !(0 == mp_add_~i~0#1 % 256); 35822#L84-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a1~0#1 % 256; 35823#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 35866#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 35864#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 35862#L90 assume !(0 == mp_add_~i~0#1 % 256); 35860#L90-2 assume 1 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b1~0#1 % 256; 35858#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 35856#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 35854#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 35852#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 35850#L99-1 assume 1 == mp_add_~i~0#1 % 256;mp_add_~r1~0#1 := mp_add_~partial_sum~0#1; 35848#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 35844#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 35845#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 35840#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 35841#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 35784#L84 assume !(0 == mp_add_~i~0#1 % 256); 35785#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 35867#L85-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a2~0#1 % 256; 35865#L86-1 assume !(3 == mp_add_~i~0#1 % 256); 35863#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 35861#L90 assume !(0 == mp_add_~i~0#1 % 256); 35859#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 35857#L91-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b2~0#1 % 256; 35855#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 35853#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 35851#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 35849#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 35846#L100-1 assume 2 == mp_add_~i~0#1 % 256;mp_add_~r2~0#1 := mp_add_~partial_sum~0#1; 35847#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 35842#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 35843#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 35817#L83 assume mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256; 35818#L84 assume !(0 == mp_add_~i~0#1 % 256); 35811#L84-2 assume !(1 == mp_add_~i~0#1 % 256); 35790#L85-1 assume !(2 == mp_add_~i~0#1 % 256); 35791#L86-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~a3~0#1 % 256; 35810#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 35871#L90 assume !(0 == mp_add_~i~0#1 % 256); 35869#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 35792#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 35793#L92-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~partial_sum~0#1 := mp_add_~partial_sum~0#1 % 65536 + mp_add_~b3~0#1 % 256; 35796#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 35798#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 35877#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 35876#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 35875#L101-1 assume 3 == mp_add_~i~0#1 % 256;mp_add_~r3~0#1 := mp_add_~partial_sum~0#1; 35802#L102-1 [2021-11-19 04:42:29,503 INFO L793 eck$LassoCheckResult]: Loop: 35802#L102-1 mp_add_~i~0#1 := 1 + mp_add_~i~0#1 % 256; 35874#L80-2 assume !!((mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256 || mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256) || 0 != mp_add_~carry~0#1 % 65536);mp_add_~partial_sum~0#1 := mp_add_~carry~0#1;mp_add_~carry~0#1 := 0; 35808#L83 assume !(mp_add_~i~0#1 % 256 < mp_add_~na~0#1 % 256); 35809#L83-1 assume mp_add_~i~0#1 % 256 < mp_add_~nb~0#1 % 256; 35804#L90 assume !(0 == mp_add_~i~0#1 % 256); 35805#L90-2 assume !(1 == mp_add_~i~0#1 % 256); 35816#L91-1 assume !(2 == mp_add_~i~0#1 % 256); 35794#L92-1 assume !(3 == mp_add_~i~0#1 % 256); 35795#L89 assume !(mp_add_~partial_sum~0#1 % 65536 > 255); 35873#L95-1 assume !(0 == mp_add_~i~0#1 % 256); 35872#L99-1 assume !(1 == mp_add_~i~0#1 % 256); 35870#L100-1 assume !(2 == mp_add_~i~0#1 % 256); 35801#L101-1 assume !(3 == mp_add_~i~0#1 % 256); 35802#L102-1 [2021-11-19 04:42:29,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:42:29,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1777905539, now seen corresponding path program 1 times [2021-11-19 04:42:29,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:42:29,504 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909640257] [2021-11-19 04:42:29,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:42:29,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:42:29,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:42:29,537 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:42:29,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:42:29,584 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:42:29,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:42:29,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 3 times [2021-11-19 04:42:29,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:42:29,585 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175688851] [2021-11-19 04:42:29,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:42:29,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:42:29,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:42:29,589 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:42:29,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:42:29,593 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:42:29,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:42:29,594 INFO L85 PathProgramCache]: Analyzing trace with hash 440844876, now seen corresponding path program 1 times [2021-11-19 04:42:29,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:42:29,594 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448025307] [2021-11-19 04:42:29,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:42:29,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:42:29,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:42:30,052 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 36 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:42:30,052 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:42:30,052 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448025307] [2021-11-19 04:42:30,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448025307] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:42:30,052 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352667566] [2021-11-19 04:42:30,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:42:30,053 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:42:30,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:30,056 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:42:30,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Waiting until timeout for monitored process [2021-11-19 04:42:30,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:42:30,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 04:42:30,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:42:31,416 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 92 proven. 1 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2021-11-19 04:42:31,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:42:32,226 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 36 proven. 57 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2021-11-19 04:42:32,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [352667566] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:42:32,227 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 04:42:32,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 6] total 18 [2021-11-19 04:42:32,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621529009] [2021-11-19 04:42:32,227 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 04:42:32,457 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:42:32,457 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:42:32,457 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:42:32,457 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:42:32,457 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-19 04:42:32,458 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:32,458 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:42:32,458 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:42:32,458 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration29_Loop [2021-11-19 04:42:32,458 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:42:32,458 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:42:32,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:42:32,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:42:32,921 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:42:32,921 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-19 04:42:32,921 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:32,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:32,924 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:32,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Waiting until timeout for monitored process [2021-11-19 04:42:32,926 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:42:32,926 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:42:32,945 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-19 04:42:32,945 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_mp_add_~carry~0#1=0, ULTIMATE.start_mp_add_~partial_sum~0#1=0} Honda state: {ULTIMATE.start_mp_add_~carry~0#1=0, ULTIMATE.start_mp_add_~partial_sum~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-19 04:42:32,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:32,969 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:32,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:32,970 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:32,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Waiting until timeout for monitored process [2021-11-19 04:42:32,971 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:42:32,971 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:42:33,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:33,022 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:33,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:33,023 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:33,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Waiting until timeout for monitored process [2021-11-19 04:42:33,024 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-19 04:42:33,024 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:42:34,222 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-19 04:42:34,227 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Ended with exit code 0 [2021-11-19 04:42:34,228 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:42:34,228 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:42:34,228 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:42:34,228 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:42:34,228 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-19 04:42:34,228 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:34,228 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:42:34,228 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:42:34,228 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration29_Loop [2021-11-19 04:42:34,228 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:42:34,228 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:42:34,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:42:34,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:42:34,710 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:42:34,710 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-19 04:42:34,711 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:34,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:34,712 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:34,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Waiting until timeout for monitored process [2021-11-19 04:42:34,713 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:34,722 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:34,722 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:34,722 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:34,722 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:34,722 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:42:34,723 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:42:34,724 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:34,726 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:34,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:34,750 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:34,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:34,751 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:34,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Waiting until timeout for monitored process [2021-11-19 04:42:34,752 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:34,760 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:34,761 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:34,761 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:34,761 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:34,761 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:42:34,763 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:42:34,763 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:34,767 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:34,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:34,790 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-11-19 04:42:34,790 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:34,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:34,791 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:34,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Waiting until timeout for monitored process [2021-11-19 04:42:34,793 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:34,801 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:34,801 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:34,801 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:34,802 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:34,802 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-11-19 04:42:34,803 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-11-19 04:42:34,803 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:34,806 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:34,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:34,827 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:34,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:34,828 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:34,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Waiting until timeout for monitored process [2021-11-19 04:42:34,829 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:34,836 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:34,837 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:34,837 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:34,837 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:34,837 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-11-19 04:42:34,843 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-11-19 04:42:34,843 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:34,866 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:34,888 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Ended with exit code 0 [2021-11-19 04:42:34,888 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-11-19 04:42:34,888 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:34,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:34,889 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:34,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Waiting until timeout for monitored process [2021-11-19 04:42:34,890 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:34,898 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:34,898 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:34,898 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:34,898 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:34,898 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-11-19 04:42:34,900 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-19 04:42:34,900 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:34,904 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:34,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Ended with exit code 0 [2021-11-19 04:42:34,927 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:34,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:34,928 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:34,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Waiting until timeout for monitored process [2021-11-19 04:42:34,929 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:34,937 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:34,937 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:34,938 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:34,938 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:34,938 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-11-19 04:42:34,941 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-19 04:42:34,941 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:34,948 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:34,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:34,970 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-11-19 04:42:34,970 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:34,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:34,971 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:34,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Waiting until timeout for monitored process [2021-11-19 04:42:34,973 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:34,981 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:34,982 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:34,982 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:34,982 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:34,982 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-11-19 04:42:34,984 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-11-19 04:42:34,984 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:34,988 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:35,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:35,009 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:35,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:35,010 INFO L229 MonitoredProcess]: Starting monitored process 116 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:35,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Waiting until timeout for monitored process [2021-11-19 04:42:35,011 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:35,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:42:35,020 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:35,020 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:35,020 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:35,020 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-11-19 04:42:35,026 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-11-19 04:42:35,026 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:35,033 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:35,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Ended with exit code 0 [2021-11-19 04:42:35,055 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-11-19 04:42:35,055 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:35,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:35,056 INFO L229 MonitoredProcess]: Starting monitored process 117 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:35,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (117)] Waiting until timeout for monitored process [2021-11-19 04:42:35,058 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:35,066 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:35,066 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-11-19 04:42:35,066 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:35,066 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:35,066 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:35,066 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-11-19 04:42:35,068 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-11-19 04:42:35,068 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:35,072 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:35,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (117)] Ended with exit code 0 [2021-11-19 04:42:35,094 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:35,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:35,095 INFO L229 MonitoredProcess]: Starting monitored process 118 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:35,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (118)] Waiting until timeout for monitored process [2021-11-19 04:42:35,096 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:35,104 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:35,104 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-11-19 04:42:35,104 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:35,104 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:35,104 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:35,104 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-11-19 04:42:35,107 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-11-19 04:42:35,107 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:35,114 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:35,134 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (118)] Ended with exit code 0 [2021-11-19 04:42:35,134 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-11-19 04:42:35,134 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:35,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:35,135 INFO L229 MonitoredProcess]: Starting monitored process 119 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:35,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (119)] Waiting until timeout for monitored process [2021-11-19 04:42:35,136 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:35,144 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:35,144 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-11-19 04:42:35,144 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:35,144 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:35,144 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:35,144 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-11-19 04:42:35,146 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-19 04:42:35,146 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:35,152 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:35,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (119)] Ended with exit code 0 [2021-11-19 04:42:35,172 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:35,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:35,173 INFO L229 MonitoredProcess]: Starting monitored process 120 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:35,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (120)] Waiting until timeout for monitored process [2021-11-19 04:42:35,174 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:35,182 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:35,182 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-11-19 04:42:35,182 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:35,182 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:35,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:35,182 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-11-19 04:42:35,187 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-19 04:42:35,187 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:35,221 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:35,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (120)] Ended with exit code 0 [2021-11-19 04:42:35,244 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-11-19 04:42:35,244 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:35,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:35,245 INFO L229 MonitoredProcess]: Starting monitored process 121 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:35,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (121)] Waiting until timeout for monitored process [2021-11-19 04:42:35,247 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:35,255 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:35,255 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-11-19 04:42:35,255 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:35,256 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:35,256 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:35,256 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-11-19 04:42:35,259 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-11-19 04:42:35,259 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:35,271 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:35,293 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (121)] Ended with exit code 0 [2021-11-19 04:42:35,293 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:35,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:35,294 INFO L229 MonitoredProcess]: Starting monitored process 122 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:35,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (122)] Waiting until timeout for monitored process [2021-11-19 04:42:35,295 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:35,304 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:35,304 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-11-19 04:42:35,304 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:35,304 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:35,304 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:35,304 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-11-19 04:42:35,311 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-11-19 04:42:35,312 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:35,330 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:35,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (122)] Ended with exit code 0 [2021-11-19 04:42:35,351 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-11-19 04:42:35,351 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:35,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:35,352 INFO L229 MonitoredProcess]: Starting monitored process 123 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:35,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (123)] Waiting until timeout for monitored process [2021-11-19 04:42:35,353 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:35,360 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:35,360 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-11-19 04:42:35,360 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:35,361 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:35,361 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:35,361 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-11-19 04:42:35,363 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-19 04:42:35,363 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:35,367 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:35,386 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (123)] Ended with exit code 0 [2021-11-19 04:42:35,386 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:35,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:35,387 INFO L229 MonitoredProcess]: Starting monitored process 124 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:35,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (124)] Waiting until timeout for monitored process [2021-11-19 04:42:35,389 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:35,396 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:35,396 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-11-19 04:42:35,396 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:35,396 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:35,396 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:35,396 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-11-19 04:42:35,400 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-19 04:42:35,400 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:35,406 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:35,427 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (124)] Ended with exit code 0 [2021-11-19 04:42:35,427 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-11-19 04:42:35,427 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:35,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:35,428 INFO L229 MonitoredProcess]: Starting monitored process 125 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:35,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (125)] Waiting until timeout for monitored process [2021-11-19 04:42:35,430 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:35,437 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:35,438 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-11-19 04:42:35,438 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:35,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:35,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:35,438 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-11-19 04:42:35,440 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:42:35,441 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:35,447 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:35,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (125)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:35,467 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:42:35,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:42:35,468 INFO L229 MonitoredProcess]: Starting monitored process 126 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:42:35,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (126)] Waiting until timeout for monitored process [2021-11-19 04:42:35,470 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:42:35,477 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-11-19 04:42:35,477 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-11-19 04:42:35,477 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:42:35,478 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:42:35,478 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:42:35,478 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-11-19 04:42:35,483 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:42:35,483 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:42:35,507 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:42:35,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (126)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:35,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:42:35,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-19 04:42:35,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2021-11-19 04:42:35,547 INFO L87 Difference]: Start difference. First operand 94 states and 99 transitions. cyclomatic complexity: 6 Second operand has 18 states, 18 states have (on average 9.944444444444445) internal successors, (179), 18 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:42:38,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:42:38,294 INFO L93 Difference]: Finished difference Result 94 states and 96 transitions. [2021-11-19 04:42:38,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-19 04:42:38,296 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 94 states and 96 transitions. [2021-11-19 04:42:38,296 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-19 04:42:38,296 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 94 states to 0 states and 0 transitions. [2021-11-19 04:42:38,296 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-19 04:42:38,296 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-19 04:42:38,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-19 04:42:38,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:42:38,297 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 04:42:38,297 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 04:42:38,297 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 04:42:38,297 INFO L425 BuchiCegarLoop]: ======== Iteration 30============ [2021-11-19 04:42:38,297 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-19 04:42:38,297 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-19 04:42:38,297 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-19 04:42:38,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 04:42:38 BoogieIcfgContainer [2021-11-19 04:42:38,304 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-19 04:42:38,304 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 04:42:38,304 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 04:42:38,304 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 04:42:38,305 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:35:28" (3/4) ... [2021-11-19 04:42:38,307 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 04:42:38,308 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 04:42:38,308 INFO L158 Benchmark]: Toolchain (without parser) took 430802.15ms. Allocated memory was 121.6MB in the beginning and 268.4MB in the end (delta: 146.8MB). Free memory was 85.8MB in the beginning and 207.0MB in the end (delta: -121.2MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2021-11-19 04:42:38,309 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 86.0MB. Free memory was 56.5MB in the beginning and 56.5MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:42:38,309 INFO L158 Benchmark]: CACSL2BoogieTranslator took 443.95ms. Allocated memory is still 121.6MB. Free memory was 85.8MB in the beginning and 95.9MB in the end (delta: -10.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-19 04:42:38,309 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.81ms. Allocated memory is still 121.6MB. Free memory was 95.9MB in the beginning and 94.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 04:42:38,310 INFO L158 Benchmark]: Boogie Preprocessor took 36.42ms. Allocated memory is still 121.6MB. Free memory was 94.2MB in the beginning and 92.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 04:42:38,310 INFO L158 Benchmark]: RCFGBuilder took 583.31ms. Allocated memory is still 121.6MB. Free memory was 92.6MB in the beginning and 80.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-19 04:42:38,310 INFO L158 Benchmark]: BuchiAutomizer took 429664.36ms. Allocated memory was 121.6MB in the beginning and 268.4MB in the end (delta: 146.8MB). Free memory was 79.6MB in the beginning and 207.0MB in the end (delta: -127.4MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. [2021-11-19 04:42:38,311 INFO L158 Benchmark]: Witness Printer took 3.40ms. Allocated memory is still 268.4MB. Free memory is still 207.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:42:38,313 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 86.0MB. Free memory was 56.5MB in the beginning and 56.5MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 443.95ms. Allocated memory is still 121.6MB. Free memory was 85.8MB in the beginning and 95.9MB in the end (delta: -10.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.81ms. Allocated memory is still 121.6MB. Free memory was 95.9MB in the beginning and 94.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.42ms. Allocated memory is still 121.6MB. Free memory was 94.2MB in the beginning and 92.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 583.31ms. Allocated memory is still 121.6MB. Free memory was 92.6MB in the beginning and 80.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 429664.36ms. Allocated memory was 121.6MB in the beginning and 268.4MB in the end (delta: 146.8MB). Free memory was 79.6MB in the beginning and 207.0MB in the end (delta: -127.4MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. * Witness Printer took 3.40ms. Allocated memory is still 268.4MB. Free memory is still 207.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 29 terminating modules (29 trivial, 0 deterministic, 0 nondeterministic). 29 modules have a trivial ranking function, the largest among these consists of 18 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 429.5s and 30 iterations. TraceHistogramMax:4. Analysis of lassos took 161.6s. Construction of modules took 15.2s. Büchi inclusion checks took 251.0s. Highest rank in rank-based complementation 0. Minimization of det autom 29. Minimization of nondet autom 0. Automata minimization 0.6s AutomataMinimizationTime, 28 MinimizatonAttempts, 6497 StatesRemovedByMinimization, 26 NontrivialMinimizations. Non-live state removal took 0.4s Buchi closure took 0.0s. Biggest automaton had 2527 states and ocurred in iteration 23. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4611 SdHoareTripleChecker+Valid, 17.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4611 mSDsluCounter, 3746 SdHoareTripleChecker+Invalid, 15.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 183 IncrementalHoareTripleChecker+Unchecked, 2408 mSDsCounter, 607 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7504 IncrementalHoareTripleChecker+Invalid, 8294 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 607 mSolverCounterUnsat, 1338 mSDtfsCounter, 7504 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI11 SFLT0 conc2 concLT0 SILN0 SILU3 SILI13 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital58 mio100 ax100 hnf100 lsp81 ukn100 mio100 lsp100 div393 bol100 ite100 ukn100 eq146 hnf47 smp69 dnf100 smp100 tf102 neg98 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 3 Time: 44ms VariablesStem: 0 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 5.8s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-19 04:42:38,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:38,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:38,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:38,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:39,173 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2021-11-19 04:42:39,371 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2021-11-19 04:42:39,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2021-11-19 04:42:39,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2021-11-19 04:42:39,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-11-19 04:42:40,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:40,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-11-19 04:42:40,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:40,753 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-11-19 04:42:40,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-11-19 04:42:41,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-11-19 04:42:41,371 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-11-19 04:42:41,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:41,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:41,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:42,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:42,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-19 04:42:42,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4049aca6-ed80-4050-b368-349e554ab0f0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE