./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 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/byte_add_1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3 --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 a92d749021b3b94f4ecd59f60bbcb6b80102c08a ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 20:17:48,925 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 20:17:48,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 20:17:48,960 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 20:17:48,963 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 20:17:48,966 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 20:17:48,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 20:17:48,974 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 20:17:48,976 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 20:17:48,982 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 20:17:48,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 20:17:48,985 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 20:17:48,986 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 20:17:48,988 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 20:17:48,991 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 20:17:48,993 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 20:17:48,995 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 20:17:48,996 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 20:17:49,001 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 20:17:49,008 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 20:17:49,010 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 20:17:49,012 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 20:17:49,015 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 20:17:49,016 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 20:17:49,029 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 20:17:49,030 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 20:17:49,030 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 20:17:49,032 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 20:17:49,033 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 20:17:49,034 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 20:17:49,035 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 20:17:49,036 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 20:17:49,038 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 20:17:49,039 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 20:17:49,040 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 20:17:49,040 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 20:17:49,041 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 20:17:49,042 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 20:17:49,042 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 20:17:49,043 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 20:17:49,044 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 20:17:49,044 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-15 20:17:49,095 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 20:17:49,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 20:17:49,096 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 20:17:49,096 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 20:17:49,098 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 20:17:49,098 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 20:17:49,098 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 20:17:49,099 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-15 20:17:49,099 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-15 20:17:49,099 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-15 20:17:49,100 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-15 20:17:49,100 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-15 20:17:49,101 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-15 20:17:49,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 20:17:49,101 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 20:17:49,101 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-15 20:17:49,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 20:17:49,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 20:17:49,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 20:17:49,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-15 20:17:49,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-15 20:17:49,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-15 20:17:49,103 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 20:17:49,103 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 20:17:49,104 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-15 20:17:49,104 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 20:17:49,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-15 20:17:49,104 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 20:17:49,105 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 20:17:49,105 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 20:17:49,105 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 20:17:49,105 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 20:17:49,107 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-15 20:17:49,107 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_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a92d749021b3b94f4ecd59f60bbcb6b80102c08a [2021-10-15 20:17:49,407 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 20:17:49,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 20:17:49,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 20:17:49,431 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 20:17:49,432 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 20:17:49,433 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/bitvector/byte_add_1-1.i [2021-10-15 20:17:49,511 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/data/750a5cfa4/cc63962087cc47cba31f4ace8810f19c/FLAG647f75bed [2021-10-15 20:17:49,939 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 20:17:49,939 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/sv-benchmarks/c/bitvector/byte_add_1-1.i [2021-10-15 20:17:49,946 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/data/750a5cfa4/cc63962087cc47cba31f4ace8810f19c/FLAG647f75bed [2021-10-15 20:17:49,962 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/data/750a5cfa4/cc63962087cc47cba31f4ace8810f19c [2021-10-15 20:17:49,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 20:17:49,966 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 20:17:49,967 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 20:17:49,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 20:17:49,971 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 20:17:49,972 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:17:49" (1/1) ... [2021-10-15 20:17:49,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@479126c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:17:49, skipping insertion in model container [2021-10-15 20:17:49,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:17:49" (1/1) ... [2021-10-15 20:17:49,980 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 20:17:50,001 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 20:17:50,169 WARN L228 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_2ce356d3-1d67-4ee6-978c-9bffa622bda9/sv-benchmarks/c/bitvector/byte_add_1-1.i[863,876] [2021-10-15 20:17:50,204 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 20:17:50,213 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 20:17:50,226 WARN L228 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_2ce356d3-1d67-4ee6-978c-9bffa622bda9/sv-benchmarks/c/bitvector/byte_add_1-1.i[863,876] [2021-10-15 20:17:50,251 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 20:17:50,264 INFO L208 MainTranslator]: Completed translation [2021-10-15 20:17:50,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:17:50 WrapperNode [2021-10-15 20:17:50,265 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 20:17:50,266 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 20:17:50,267 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 20:17:50,267 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 20:17:50,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:17:50" (1/1) ... [2021-10-15 20:17:50,283 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:17:50" (1/1) ... [2021-10-15 20:17:50,307 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 20:17:50,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 20:17:50,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 20:17:50,308 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 20:17:50,317 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:17:50" (1/1) ... [2021-10-15 20:17:50,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:17:50" (1/1) ... [2021-10-15 20:17:50,320 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:17:50" (1/1) ... [2021-10-15 20:17:50,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:17:50" (1/1) ... [2021-10-15 20:17:50,328 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:17:50" (1/1) ... [2021-10-15 20:17:50,334 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:17:50" (1/1) ... [2021-10-15 20:17:50,336 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:17:50" (1/1) ... [2021-10-15 20:17:50,339 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 20:17:50,340 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 20:17:50,340 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 20:17:50,340 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 20:17:50,342 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:17:50" (1/1) ... [2021-10-15 20:17:50,350 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:17:50,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:17:50,374 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:17:50,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-15 20:17:50,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-15 20:17:50,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 20:17:50,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 20:17:50,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 20:17:50,726 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 20:17:50,726 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-15 20:17:50,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:17:50 BoogieIcfgContainer [2021-10-15 20:17:50,729 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 20:17:50,730 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-15 20:17:50,730 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-15 20:17:50,734 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-15 20:17:50,734 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 20:17:50,735 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.10 08:17:49" (1/3) ... [2021-10-15 20:17:50,736 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d67723d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 08:17:50, skipping insertion in model container [2021-10-15 20:17:50,736 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 20:17:50,736 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:17:50" (2/3) ... [2021-10-15 20:17:50,736 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d67723d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 08:17:50, skipping insertion in model container [2021-10-15 20:17:50,737 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 20:17:50,737 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:17:50" (3/3) ... [2021-10-15 20:17:50,738 INFO L389 chiAutomizerObserver]: Analyzing ICFG byte_add_1-1.i [2021-10-15 20:17:50,797 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-15 20:17:50,797 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-15 20:17:50,797 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-15 20:17:50,797 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-15 20:17:50,798 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-15 20:17:50,798 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-15 20:17:50,798 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-15 20:17:50,798 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-15 20:17:50,832 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) [2021-10-15 20:17:50,868 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 23 [2021-10-15 20:17:50,874 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:17:50,883 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:17:50,890 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-15 20:17:50,890 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:17:50,890 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-15 20:17:50,894 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) [2021-10-15 20:17:50,902 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 23 [2021-10-15 20:17:50,903 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:17:50,903 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:17:50,903 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-15 20:17:50,903 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:17:50,910 INFO L791 eck$LassoCheckResult]: Stem: 22#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 12#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 7#L51true assume !(0 == mp_add_~a3~0 % 256); 15#L51-1true mp_add_~nb~0 := 4; 8#L61true assume !(0 == mp_add_~b3~0 % 256); 18#L61-1true mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 13#L72-2true [2021-10-15 20:17:50,913 INFO L793 eck$LassoCheckResult]: Loop: 13#L72-2true assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 34#L75true assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 36#L75-1true assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 27#L81true assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 14#L87-1true assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 10#L91-1true assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 11#L92-1true assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 20#L93-1true assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 17#L94-1true mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 13#L72-2true [2021-10-15 20:17:50,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:17:50,925 INFO L82 PathProgramCache]: Analyzing trace with hash 889938151, now seen corresponding path program 1 times [2021-10-15 20:17:50,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:17:50,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225879008] [2021-10-15 20:17:50,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:50,936 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:17:51,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:17:51,119 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:17:51,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:17:51,196 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:17:51,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:17:51,199 INFO L82 PathProgramCache]: Analyzing trace with hash 318197182, now seen corresponding path program 1 times [2021-10-15 20:17:51,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:17:51,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552292969] [2021-10-15 20:17:51,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:51,200 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:17:51,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:17:51,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:17:51,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:17:51,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552292969] [2021-10-15 20:17:51,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552292969] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:17:51,279 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:17:51,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 20:17:51,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566833108] [2021-10-15 20:17:51,285 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 20:17:51,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:17:51,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 20:17:51,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 20:17:51,309 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) [2021-10-15 20:17:51,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:17:51,537 INFO L93 Difference]: Finished difference Result 64 states and 94 transitions. [2021-10-15 20:17:51,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 20:17:51,539 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 94 transitions. [2021-10-15 20:17:51,551 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2021-10-15 20:17:51,561 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 56 states and 86 transitions. [2021-10-15 20:17:51,562 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2021-10-15 20:17:51,564 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 56 [2021-10-15 20:17:51,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 86 transitions. [2021-10-15 20:17:51,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:17:51,566 INFO L681 BuchiCegarLoop]: Abstraction has 56 states and 86 transitions. [2021-10-15 20:17:51,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 86 transitions. [2021-10-15 20:17:51,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2021-10-15 20:17:51,619 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) [2021-10-15 20:17:51,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 84 transitions. [2021-10-15 20:17:51,622 INFO L704 BuchiCegarLoop]: Abstraction has 54 states and 84 transitions. [2021-10-15 20:17:51,622 INFO L587 BuchiCegarLoop]: Abstraction has 54 states and 84 transitions. [2021-10-15 20:17:51,622 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-15 20:17:51,622 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 84 transitions. [2021-10-15 20:17:51,626 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-10-15 20:17:51,627 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:17:51,627 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:17:51,630 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:17:51,630 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:17:51,631 INFO L791 eck$LassoCheckResult]: Stem: 134#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 124#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 114#L51 assume !(0 == mp_add_~a3~0 % 256); 115#L51-1 mp_add_~nb~0 := 4; 117#L61 assume !(0 == mp_add_~b3~0 % 256); 118#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 125#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 126#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 146#L75-1 [2021-10-15 20:17:51,631 INFO L793 eck$LassoCheckResult]: Loop: 146#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 140#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 128#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 121#L91-1 assume !(1 == mp_add_~i~0 % 256); 122#L92-1 assume !(2 == mp_add_~i~0 % 256); 123#L93-1 assume !(3 == mp_add_~i~0 % 256); 131#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 132#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 158#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 159#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 151#L76-2 assume !(1 == mp_add_~i~0 % 256); 160#L77-1 assume !(2 == mp_add_~i~0 % 256); 145#L78-1 assume !(3 == mp_add_~i~0 % 256); 146#L75-1 [2021-10-15 20:17:51,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:17:51,632 INFO L82 PathProgramCache]: Analyzing trace with hash 532072804, now seen corresponding path program 1 times [2021-10-15 20:17:51,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:17:51,632 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295939018] [2021-10-15 20:17:51,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:51,633 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:17:51,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:17:51,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:17:51,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:17:51,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295939018] [2021-10-15 20:17:51,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295939018] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:17:51,882 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:17:51,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-15 20:17:51,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948304963] [2021-10-15 20:17:51,882 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-15 20:17:51,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:17:51,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1939143242, now seen corresponding path program 1 times [2021-10-15 20:17:51,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:17:51,885 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003310141] [2021-10-15 20:17:51,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:51,887 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:17:51,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:17:51,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:17:51,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:17:51,967 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003310141] [2021-10-15 20:17:51,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003310141] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:17:51,968 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:17:51,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-15 20:17:51,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795959816] [2021-10-15 20:17:51,968 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 20:17:51,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:17:51,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-15 20:17:51,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-15 20:17:51,970 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) [2021-10-15 20:17:52,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:17:52,334 INFO L93 Difference]: Finished difference Result 149 states and 228 transitions. [2021-10-15 20:17:52,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-15 20:17:52,335 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 149 states and 228 transitions. [2021-10-15 20:17:52,339 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 108 [2021-10-15 20:17:52,342 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 149 states to 149 states and 228 transitions. [2021-10-15 20:17:52,342 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 149 [2021-10-15 20:17:52,343 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 149 [2021-10-15 20:17:52,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 149 states and 228 transitions. [2021-10-15 20:17:52,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:17:52,345 INFO L681 BuchiCegarLoop]: Abstraction has 149 states and 228 transitions. [2021-10-15 20:17:52,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states and 228 transitions. [2021-10-15 20:17:52,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 78. [2021-10-15 20:17:52,352 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) [2021-10-15 20:17:52,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 113 transitions. [2021-10-15 20:17:52,353 INFO L704 BuchiCegarLoop]: Abstraction has 78 states and 113 transitions. [2021-10-15 20:17:52,354 INFO L587 BuchiCegarLoop]: Abstraction has 78 states and 113 transitions. [2021-10-15 20:17:52,354 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-15 20:17:52,354 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states and 113 transitions. [2021-10-15 20:17:52,355 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-10-15 20:17:52,356 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:17:52,356 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:17:52,357 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:17:52,357 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:17:52,357 INFO L791 eck$LassoCheckResult]: Stem: 351#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 341#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 332#L51 assume 0 == mp_add_~a3~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 334#L53 assume !(0 == mp_add_~a2~0 % 256); 368#L51-1 mp_add_~nb~0 := 4; 335#L61 assume !(0 == mp_add_~b3~0 % 256); 336#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 378#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 379#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 400#L75-1 [2021-10-15 20:17:52,357 INFO L793 eck$LassoCheckResult]: Loop: 400#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 366#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 342#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 329#L91-1 assume !(1 == mp_add_~i~0 % 256); 330#L92-1 assume !(2 == mp_add_~i~0 % 256); 331#L93-1 assume !(3 == mp_add_~i~0 % 256); 346#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 347#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 376#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 369#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 352#L76-2 assume !(1 == mp_add_~i~0 % 256); 353#L77-1 assume !(2 == mp_add_~i~0 % 256); 354#L78-1 assume !(3 == mp_add_~i~0 % 256); 400#L75-1 [2021-10-15 20:17:52,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:17:52,358 INFO L82 PathProgramCache]: Analyzing trace with hash -384676570, now seen corresponding path program 1 times [2021-10-15 20:17:52,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:17:52,359 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901539579] [2021-10-15 20:17:52,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:52,359 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:17:52,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:17:52,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:17:52,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:17:52,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901539579] [2021-10-15 20:17:52,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901539579] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:17:52,407 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:17:52,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 20:17:52,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304427308] [2021-10-15 20:17:52,407 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-15 20:17:52,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:17:52,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1939143242, now seen corresponding path program 2 times [2021-10-15 20:17:52,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:17:52,409 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110171255] [2021-10-15 20:17:52,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:52,409 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:17:52,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:17:52,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:17:52,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:17:52,480 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110171255] [2021-10-15 20:17:52,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110171255] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:17:52,480 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:17:52,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-15 20:17:52,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600087096] [2021-10-15 20:17:52,481 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 20:17:52,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:17:52,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 20:17:52,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 20:17:52,482 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) [2021-10-15 20:17:52,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:17:52,492 INFO L93 Difference]: Finished difference Result 66 states and 93 transitions. [2021-10-15 20:17:52,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 20:17:52,493 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 93 transitions. [2021-10-15 20:17:52,494 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-10-15 20:17:52,495 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 66 states and 93 transitions. [2021-10-15 20:17:52,495 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 66 [2021-10-15 20:17:52,496 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 66 [2021-10-15 20:17:52,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 93 transitions. [2021-10-15 20:17:52,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:17:52,497 INFO L681 BuchiCegarLoop]: Abstraction has 66 states and 93 transitions. [2021-10-15 20:17:52,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 93 transitions. [2021-10-15 20:17:52,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2021-10-15 20:17:52,501 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) [2021-10-15 20:17:52,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 93 transitions. [2021-10-15 20:17:52,501 INFO L704 BuchiCegarLoop]: Abstraction has 66 states and 93 transitions. [2021-10-15 20:17:52,501 INFO L587 BuchiCegarLoop]: Abstraction has 66 states and 93 transitions. [2021-10-15 20:17:52,501 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-15 20:17:52,501 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 93 transitions. [2021-10-15 20:17:52,502 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-10-15 20:17:52,502 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:17:52,502 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:17:52,503 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:17:52,503 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:17:52,503 INFO L791 eck$LassoCheckResult]: Stem: 500#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 490#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 481#L51 assume !(0 == mp_add_~a3~0 % 256); 482#L51-1 mp_add_~nb~0 := 4; 483#L61 assume !(0 == mp_add_~b3~0 % 256); 484#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 497#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 545#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 544#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 543#L76-2 assume !(1 == mp_add_~i~0 % 256); 541#L77-1 assume !(2 == mp_add_~i~0 % 256); 538#L78-1 assume !(3 == mp_add_~i~0 % 256); 533#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 531#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 493#L87-1 [2021-10-15 20:17:52,504 INFO L793 eck$LassoCheckResult]: Loop: 493#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 487#L91-1 assume !(1 == mp_add_~i~0 % 256); 488#L92-1 assume !(2 == mp_add_~i~0 % 256); 489#L93-1 assume !(3 == mp_add_~i~0 % 256); 498#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 522#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 523#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 514#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 517#L76-2 assume !(1 == mp_add_~i~0 % 256); 540#L77-1 assume !(2 == mp_add_~i~0 % 256); 537#L78-1 assume !(3 == mp_add_~i~0 % 256); 536#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 532#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 493#L87-1 [2021-10-15 20:17:52,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:17:52,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1874592092, now seen corresponding path program 1 times [2021-10-15 20:17:52,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:17:52,505 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879438375] [2021-10-15 20:17:52,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:52,505 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:17:52,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:17:52,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:17:52,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:17:52,626 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879438375] [2021-10-15 20:17:52,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879438375] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:17:52,627 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:17:52,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-15 20:17:52,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436094489] [2021-10-15 20:17:52,628 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-15 20:17:52,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:17:52,628 INFO L82 PathProgramCache]: Analyzing trace with hash 686981138, now seen corresponding path program 3 times [2021-10-15 20:17:52,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:17:52,629 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533573578] [2021-10-15 20:17:52,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:52,629 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:17:52,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:17:52,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:17:52,679 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:17:52,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533573578] [2021-10-15 20:17:52,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533573578] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:17:52,680 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:17:52,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 20:17:52,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009486952] [2021-10-15 20:17:52,681 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 20:17:52,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:17:52,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-15 20:17:52,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-15 20:17:52,682 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) [2021-10-15 20:17:52,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:17:52,851 INFO L93 Difference]: Finished difference Result 91 states and 134 transitions. [2021-10-15 20:17:52,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-15 20:17:52,852 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 91 states and 134 transitions. [2021-10-15 20:17:52,853 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 64 [2021-10-15 20:17:52,855 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 91 states to 91 states and 134 transitions. [2021-10-15 20:17:52,855 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 91 [2021-10-15 20:17:52,855 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 91 [2021-10-15 20:17:52,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 91 states and 134 transitions. [2021-10-15 20:17:52,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:17:52,856 INFO L681 BuchiCegarLoop]: Abstraction has 91 states and 134 transitions. [2021-10-15 20:17:52,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states and 134 transitions. [2021-10-15 20:17:52,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 83. [2021-10-15 20:17:52,862 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) [2021-10-15 20:17:52,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 120 transitions. [2021-10-15 20:17:52,863 INFO L704 BuchiCegarLoop]: Abstraction has 83 states and 120 transitions. [2021-10-15 20:17:52,863 INFO L587 BuchiCegarLoop]: Abstraction has 83 states and 120 transitions. [2021-10-15 20:17:52,863 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-15 20:17:52,863 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 83 states and 120 transitions. [2021-10-15 20:17:52,864 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 56 [2021-10-15 20:17:52,865 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:17:52,865 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:17:52,866 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:17:52,866 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:17:52,866 INFO L791 eck$LassoCheckResult]: Stem: 667#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 656#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 649#L51 assume !(0 == mp_add_~a3~0 % 256); 650#L51-1 mp_add_~nb~0 := 4; 651#L61 assume !(0 == mp_add_~b3~0 % 256); 652#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 663#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 711#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 710#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 709#L76-2 assume !(1 == mp_add_~i~0 % 256); 708#L77-1 assume !(2 == mp_add_~i~0 % 256); 706#L78-1 assume !(3 == mp_add_~i~0 % 256); 703#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 701#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 697#L87-1 [2021-10-15 20:17:52,866 INFO L793 eck$LassoCheckResult]: Loop: 697#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 696#L91-1 assume !(1 == mp_add_~i~0 % 256); 694#L92-1 assume !(2 == mp_add_~i~0 % 256); 691#L93-1 assume !(3 == mp_add_~i~0 % 256); 692#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 687#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 688#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 677#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 674#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 659#L87-1 assume !(0 == mp_add_~i~0 % 256); 655#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 647#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 648#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 689#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 690#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 695#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 715#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 716#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 676#L82-2 assume !(1 == mp_add_~i~0 % 256); 682#L83-1 assume !(2 == mp_add_~i~0 % 256); 684#L84-1 assume !(3 == mp_add_~i~0 % 256); 719#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 697#L87-1 [2021-10-15 20:17:52,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:17:52,867 INFO L82 PathProgramCache]: Analyzing trace with hash 1874592092, now seen corresponding path program 2 times [2021-10-15 20:17:52,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:17:52,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999314136] [2021-10-15 20:17:52,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:52,868 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:17:52,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:17:52,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:17:52,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:17:52,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999314136] [2021-10-15 20:17:52,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999314136] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:17:52,954 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:17:52,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-15 20:17:52,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553584701] [2021-10-15 20:17:52,955 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-15 20:17:52,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:17:52,955 INFO L82 PathProgramCache]: Analyzing trace with hash -1043280079, now seen corresponding path program 1 times [2021-10-15 20:17:52,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:17:52,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024107020] [2021-10-15 20:17:52,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:52,956 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:17:52,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:17:52,977 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-15 20:17:52,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:17:52,977 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024107020] [2021-10-15 20:17:52,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024107020] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:17:52,977 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:17:52,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 20:17:52,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794873253] [2021-10-15 20:17:52,978 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 20:17:52,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:17:52,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-15 20:17:52,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-15 20:17:52,979 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) [2021-10-15 20:17:53,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:17:53,169 INFO L93 Difference]: Finished difference Result 164 states and 234 transitions. [2021-10-15 20:17:53,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-15 20:17:53,169 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 164 states and 234 transitions. [2021-10-15 20:17:53,171 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 112 [2021-10-15 20:17:53,173 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 164 states to 164 states and 234 transitions. [2021-10-15 20:17:53,174 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 164 [2021-10-15 20:17:53,174 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 164 [2021-10-15 20:17:53,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 164 states and 234 transitions. [2021-10-15 20:17:53,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:17:53,176 INFO L681 BuchiCegarLoop]: Abstraction has 164 states and 234 transitions. [2021-10-15 20:17:53,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states and 234 transitions. [2021-10-15 20:17:53,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 91. [2021-10-15 20:17:53,182 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) [2021-10-15 20:17:53,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 128 transitions. [2021-10-15 20:17:53,191 INFO L704 BuchiCegarLoop]: Abstraction has 91 states and 128 transitions. [2021-10-15 20:17:53,192 INFO L587 BuchiCegarLoop]: Abstraction has 91 states and 128 transitions. [2021-10-15 20:17:53,192 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-15 20:17:53,192 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 91 states and 128 transitions. [2021-10-15 20:17:53,194 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 56 [2021-10-15 20:17:53,194 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:17:53,194 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:17:53,196 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:17:53,196 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:17:53,196 INFO L791 eck$LassoCheckResult]: Stem: 927#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 917#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 908#L51 assume !(0 == mp_add_~a3~0 % 256); 909#L51-1 mp_add_~nb~0 := 4; 910#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 912#L63 assume !(0 == mp_add_~b2~0 % 256); 913#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 970#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 969#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 968#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 967#L76-2 assume !(1 == mp_add_~i~0 % 256); 966#L77-1 assume !(2 == mp_add_~i~0 % 256); 965#L78-1 assume !(3 == mp_add_~i~0 % 256); 963#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 960#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 961#L87-1 [2021-10-15 20:17:53,197 INFO L793 eck$LassoCheckResult]: Loop: 961#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 904#L91-1 assume !(1 == mp_add_~i~0 % 256); 905#L92-1 assume !(2 == mp_add_~i~0 % 256); 955#L93-1 assume !(3 == mp_add_~i~0 % 256); 954#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 950#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 951#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 943#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 934#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 918#L87-1 assume !(0 == mp_add_~i~0 % 256); 919#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 906#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 907#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 924#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 952#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 953#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 982#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 983#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 938#L82-2 assume !(1 == mp_add_~i~0 % 256); 941#L83-1 assume !(2 == mp_add_~i~0 % 256); 991#L84-1 assume !(3 == mp_add_~i~0 % 256); 990#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 961#L87-1 [2021-10-15 20:17:53,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:17:53,197 INFO L82 PathProgramCache]: Analyzing trace with hash -2095675795, now seen corresponding path program 1 times [2021-10-15 20:17:53,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:17:53,198 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211143048] [2021-10-15 20:17:53,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:53,198 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:17:53,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:17:53,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:17:53,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:17:53,334 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211143048] [2021-10-15 20:17:53,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211143048] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:17:53,334 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:17:53,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-15 20:17:53,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498220812] [2021-10-15 20:17:53,335 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-15 20:17:53,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:17:53,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1043280079, now seen corresponding path program 2 times [2021-10-15 20:17:53,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:17:53,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98236161] [2021-10-15 20:17:53,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:53,337 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:17:53,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:17:53,364 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-15 20:17:53,364 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:17:53,364 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98236161] [2021-10-15 20:17:53,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98236161] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:17:53,365 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:17:53,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 20:17:53,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134587464] [2021-10-15 20:17:53,366 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 20:17:53,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:17:53,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-15 20:17:53,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-15 20:17:53,373 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) [2021-10-15 20:17:53,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:17:53,754 INFO L93 Difference]: Finished difference Result 245 states and 348 transitions. [2021-10-15 20:17:53,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-15 20:17:53,755 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 245 states and 348 transitions. [2021-10-15 20:17:53,758 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 168 [2021-10-15 20:17:53,761 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 245 states to 245 states and 348 transitions. [2021-10-15 20:17:53,761 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 245 [2021-10-15 20:17:53,761 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 245 [2021-10-15 20:17:53,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 245 states and 348 transitions. [2021-10-15 20:17:53,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:17:53,763 INFO L681 BuchiCegarLoop]: Abstraction has 245 states and 348 transitions. [2021-10-15 20:17:53,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states and 348 transitions. [2021-10-15 20:17:53,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 91. [2021-10-15 20:17:53,770 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) [2021-10-15 20:17:53,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 128 transitions. [2021-10-15 20:17:53,771 INFO L704 BuchiCegarLoop]: Abstraction has 91 states and 128 transitions. [2021-10-15 20:17:53,771 INFO L587 BuchiCegarLoop]: Abstraction has 91 states and 128 transitions. [2021-10-15 20:17:53,771 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-15 20:17:53,772 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 91 states and 128 transitions. [2021-10-15 20:17:53,773 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 56 [2021-10-15 20:17:53,773 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:17:53,773 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:17:53,774 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:17:53,774 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:17:53,774 INFO L791 eck$LassoCheckResult]: Stem: 1273#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 1264#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 1256#L51 assume !(0 == mp_add_~a3~0 % 256); 1257#L51-1 mp_add_~nb~0 := 4; 1258#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 1260#L63 assume 0 == mp_add_~b2~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 1261#L65 assume 0 == mp_add_~b1~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 1295#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 1319#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 1318#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 1317#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 1316#L76-2 assume !(1 == mp_add_~i~0 % 256); 1315#L77-1 assume !(2 == mp_add_~i~0 % 256); 1314#L78-1 assume !(3 == mp_add_~i~0 % 256); 1312#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 1310#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 1265#L87-1 [2021-10-15 20:17:53,774 INFO L793 eck$LassoCheckResult]: Loop: 1265#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 1253#L91-1 assume !(1 == mp_add_~i~0 % 256); 1254#L92-1 assume !(2 == mp_add_~i~0 % 256); 1255#L93-1 assume !(3 == mp_add_~i~0 % 256); 1270#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 1299#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 1300#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 1334#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 1332#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 1308#L87-1 assume !(0 == mp_add_~i~0 % 256); 1306#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 1304#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 1302#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 1301#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 1297#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 1298#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 1281#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 1330#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 1283#L82-2 assume !(1 == mp_add_~i~0 % 256); 1343#L83-1 assume !(2 == mp_add_~i~0 % 256); 1286#L84-1 assume !(3 == mp_add_~i~0 % 256); 1280#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 1265#L87-1 [2021-10-15 20:17:53,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:17:53,775 INFO L82 PathProgramCache]: Analyzing trace with hash -1829134745, now seen corresponding path program 1 times [2021-10-15 20:17:53,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:17:53,775 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593900960] [2021-10-15 20:17:53,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:53,776 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:17:53,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:17:53,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:17:53,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:17:53,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593900960] [2021-10-15 20:17:53,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593900960] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:17:53,876 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:17:53,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-15 20:17:53,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900214920] [2021-10-15 20:17:53,877 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-15 20:17:53,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:17:53,877 INFO L82 PathProgramCache]: Analyzing trace with hash -1043280079, now seen corresponding path program 3 times [2021-10-15 20:17:53,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:17:53,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112348003] [2021-10-15 20:17:53,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:53,879 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:17:53,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:17:53,904 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-15 20:17:53,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:17:53,905 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112348003] [2021-10-15 20:17:53,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112348003] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:17:53,905 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:17:53,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 20:17:53,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296458696] [2021-10-15 20:17:53,906 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 20:17:53,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:17:53,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-15 20:17:53,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-15 20:17:53,907 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) [2021-10-15 20:17:54,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:17:54,005 INFO L93 Difference]: Finished difference Result 219 states and 318 transitions. [2021-10-15 20:17:54,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-15 20:17:54,006 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 219 states and 318 transitions. [2021-10-15 20:17:54,008 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 177 [2021-10-15 20:17:54,011 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 219 states to 219 states and 318 transitions. [2021-10-15 20:17:54,011 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 219 [2021-10-15 20:17:54,011 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 219 [2021-10-15 20:17:54,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 219 states and 318 transitions. [2021-10-15 20:17:54,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:17:54,012 INFO L681 BuchiCegarLoop]: Abstraction has 219 states and 318 transitions. [2021-10-15 20:17:54,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states and 318 transitions. [2021-10-15 20:17:54,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 149. [2021-10-15 20:17:54,029 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) [2021-10-15 20:17:54,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 224 transitions. [2021-10-15 20:17:54,031 INFO L704 BuchiCegarLoop]: Abstraction has 149 states and 224 transitions. [2021-10-15 20:17:54,031 INFO L587 BuchiCegarLoop]: Abstraction has 149 states and 224 transitions. [2021-10-15 20:17:54,031 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-15 20:17:54,031 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 149 states and 224 transitions. [2021-10-15 20:17:54,032 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 113 [2021-10-15 20:17:54,033 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:17:54,033 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:17:54,034 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:17:54,034 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:17:54,034 INFO L791 eck$LassoCheckResult]: Stem: 1595#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 1587#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 1579#L51 assume !(0 == mp_add_~a3~0 % 256); 1580#L51-1 mp_add_~nb~0 := 4; 1581#L61 assume !(0 == mp_add_~b3~0 % 256); 1582#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 1585#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 1586#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 1625#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 1626#L76-2 assume !(1 == mp_add_~i~0 % 256); 1653#L77-1 assume !(2 == mp_add_~i~0 % 256); 1652#L78-1 assume !(3 == mp_add_~i~0 % 256); 1651#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 1645#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 1648#L82-2 assume !(1 == mp_add_~i~0 % 256); 1646#L83-1 assume !(2 == mp_add_~i~0 % 256); 1642#L84-1 assume !(3 == mp_add_~i~0 % 256); 1643#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 1692#L87-1 [2021-10-15 20:17:54,034 INFO L793 eck$LassoCheckResult]: Loop: 1692#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 1689#L91-1 assume !(1 == mp_add_~i~0 % 256); 1688#L92-1 assume !(2 == mp_add_~i~0 % 256); 1686#L93-1 assume !(3 == mp_add_~i~0 % 256); 1682#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 1633#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 1634#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 1665#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 1660#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 1661#L87-1 assume !(0 == mp_add_~i~0 % 256); 1691#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 1722#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 1721#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 1720#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 1621#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 1610#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 1611#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 1717#L76-2 assume !(1 == mp_add_~i~0 % 256); 1701#L77-1 assume !(2 == mp_add_~i~0 % 256); 1700#L78-1 assume !(3 == mp_add_~i~0 % 256); 1699#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 1694#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 1692#L87-1 [2021-10-15 20:17:54,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:17:54,035 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 1 times [2021-10-15 20:17:54,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:17:54,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484593617] [2021-10-15 20:17:54,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:54,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:17:54,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:17:54,058 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:17:54,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:17:54,086 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:17:54,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:17:54,087 INFO L82 PathProgramCache]: Analyzing trace with hash 857385497, now seen corresponding path program 1 times [2021-10-15 20:17:54,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:17:54,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926650769] [2021-10-15 20:17:54,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:54,088 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:17:54,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:17:54,109 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-15 20:17:54,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:17:54,110 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926650769] [2021-10-15 20:17:54,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926650769] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:17:54,110 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:17:54,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 20:17:54,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880597302] [2021-10-15 20:17:54,113 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 20:17:54,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:17:54,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 20:17:54,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 20:17:54,114 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) [2021-10-15 20:17:54,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:17:54,191 INFO L93 Difference]: Finished difference Result 194 states and 283 transitions. [2021-10-15 20:17:54,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 20:17:54,192 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 194 states and 283 transitions. [2021-10-15 20:17:54,208 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 158 [2021-10-15 20:17:54,211 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 194 states to 194 states and 283 transitions. [2021-10-15 20:17:54,211 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 194 [2021-10-15 20:17:54,212 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 194 [2021-10-15 20:17:54,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 194 states and 283 transitions. [2021-10-15 20:17:54,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:17:54,213 INFO L681 BuchiCegarLoop]: Abstraction has 194 states and 283 transitions. [2021-10-15 20:17:54,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states and 283 transitions. [2021-10-15 20:17:54,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 191. [2021-10-15 20:17:54,223 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) [2021-10-15 20:17:54,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 280 transitions. [2021-10-15 20:17:54,225 INFO L704 BuchiCegarLoop]: Abstraction has 191 states and 280 transitions. [2021-10-15 20:17:54,225 INFO L587 BuchiCegarLoop]: Abstraction has 191 states and 280 transitions. [2021-10-15 20:17:54,225 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-15 20:17:54,225 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 191 states and 280 transitions. [2021-10-15 20:17:54,227 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 155 [2021-10-15 20:17:54,227 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:17:54,227 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:17:54,232 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:17:54,232 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:17:54,235 INFO L791 eck$LassoCheckResult]: Stem: 1946#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 1935#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 1925#L51 assume !(0 == mp_add_~a3~0 % 256); 1926#L51-1 mp_add_~nb~0 := 4; 1927#L61 assume !(0 == mp_add_~b3~0 % 256); 1928#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 1942#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 2010#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 2009#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 2008#L76-2 assume !(1 == mp_add_~i~0 % 256); 2006#L77-1 assume !(2 == mp_add_~i~0 % 256); 2004#L78-1 assume !(3 == mp_add_~i~0 % 256); 2002#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 1996#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 1999#L82-2 assume !(1 == mp_add_~i~0 % 256); 1997#L83-1 assume !(2 == mp_add_~i~0 % 256); 1993#L84-1 assume !(3 == mp_add_~i~0 % 256); 1994#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 2052#L87-1 [2021-10-15 20:17:54,236 INFO L793 eck$LassoCheckResult]: Loop: 2052#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 2050#L91-1 assume !(1 == mp_add_~i~0 % 256); 2049#L92-1 assume !(2 == mp_add_~i~0 % 256); 2048#L93-1 assume !(3 == mp_add_~i~0 % 256); 2047#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 1975#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 1976#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 2024#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 2019#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 1938#L87-1 assume !(0 == mp_add_~i~0 % 256); 1931#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 1932#L92-1 assume !(2 == mp_add_~i~0 % 256); 1934#L93-1 assume !(3 == mp_add_~i~0 % 256); 1943#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 2071#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 2068#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 2069#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 2072#L76-2 assume !(1 == mp_add_~i~0 % 256); 2070#L77-1 assume !(2 == mp_add_~i~0 % 256); 2064#L78-1 assume !(3 == mp_add_~i~0 % 256); 2057#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 2054#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 2052#L87-1 [2021-10-15 20:17:54,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:17:54,237 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 2 times [2021-10-15 20:17:54,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:17:54,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242715853] [2021-10-15 20:17:54,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:54,239 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:17:54,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:17:54,272 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:17:54,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:17:54,323 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:17:54,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:17:54,324 INFO L82 PathProgramCache]: Analyzing trace with hash 1165423065, now seen corresponding path program 1 times [2021-10-15 20:17:54,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:17:54,324 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792026692] [2021-10-15 20:17:54,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:54,324 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:17:54,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:17:54,418 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:17:54,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:17:54,418 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792026692] [2021-10-15 20:17:54,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792026692] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:17:54,418 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:17:54,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-15 20:17:54,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892124556] [2021-10-15 20:17:54,423 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 20:17:54,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:17:54,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-15 20:17:54,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-15 20:17:54,425 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) [2021-10-15 20:17:54,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:17:54,671 INFO L93 Difference]: Finished difference Result 367 states and 532 transitions. [2021-10-15 20:17:54,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-15 20:17:54,671 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 367 states and 532 transitions. [2021-10-15 20:17:54,675 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 311 [2021-10-15 20:17:54,679 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 367 states to 367 states and 532 transitions. [2021-10-15 20:17:54,679 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 367 [2021-10-15 20:17:54,680 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 367 [2021-10-15 20:17:54,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 367 states and 532 transitions. [2021-10-15 20:17:54,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:17:54,681 INFO L681 BuchiCegarLoop]: Abstraction has 367 states and 532 transitions. [2021-10-15 20:17:54,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states and 532 transitions. [2021-10-15 20:17:54,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 288. [2021-10-15 20:17:54,688 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) [2021-10-15 20:17:54,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 419 transitions. [2021-10-15 20:17:54,689 INFO L704 BuchiCegarLoop]: Abstraction has 288 states and 419 transitions. [2021-10-15 20:17:54,690 INFO L587 BuchiCegarLoop]: Abstraction has 288 states and 419 transitions. [2021-10-15 20:17:54,690 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-15 20:17:54,690 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 288 states and 419 transitions. [2021-10-15 20:17:54,692 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 249 [2021-10-15 20:17:54,692 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:17:54,692 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:17:54,693 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:17:54,693 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:17:54,693 INFO L791 eck$LassoCheckResult]: Stem: 2517#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 2504#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 2494#L51 assume !(0 == mp_add_~a3~0 % 256); 2495#L51-1 mp_add_~nb~0 := 4; 2496#L61 assume !(0 == mp_add_~b3~0 % 256); 2497#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 2513#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 2587#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 2586#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 2585#L76-2 assume !(1 == mp_add_~i~0 % 256); 2583#L77-1 assume !(2 == mp_add_~i~0 % 256); 2581#L78-1 assume !(3 == mp_add_~i~0 % 256); 2579#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 2573#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 2576#L82-2 assume !(1 == mp_add_~i~0 % 256); 2574#L83-1 assume !(2 == mp_add_~i~0 % 256); 2570#L84-1 assume !(3 == mp_add_~i~0 % 256); 2571#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 2601#L87-1 [2021-10-15 20:17:54,693 INFO L793 eck$LassoCheckResult]: Loop: 2601#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 2602#L91-1 assume !(1 == mp_add_~i~0 % 256); 2597#L92-1 assume !(2 == mp_add_~i~0 % 256); 2598#L93-1 assume !(3 == mp_add_~i~0 % 256); 2593#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 2594#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 2607#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 2608#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 2531#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 2723#L87-1 assume !(0 == mp_add_~i~0 % 256); 2722#L91-1 assume !(1 == mp_add_~i~0 % 256); 2502#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 2503#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 2515#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 2546#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 2547#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 2604#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 2605#L76-2 assume !(1 == mp_add_~i~0 % 256); 2655#L77-1 assume !(2 == mp_add_~i~0 % 256); 2649#L78-1 assume !(3 == mp_add_~i~0 % 256); 2650#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 2617#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 2601#L87-1 [2021-10-15 20:17:54,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:17:54,694 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 3 times [2021-10-15 20:17:54,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:17:54,694 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619809751] [2021-10-15 20:17:54,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:54,694 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:17:54,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:17:54,727 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:17:54,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:17:54,766 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:17:54,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:17:54,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1115550935, now seen corresponding path program 1 times [2021-10-15 20:17:54,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:17:54,767 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64505197] [2021-10-15 20:17:54,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:54,768 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:17:54,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:17:54,789 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-15 20:17:54,789 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:17:54,789 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64505197] [2021-10-15 20:17:54,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64505197] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:17:54,790 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:17:54,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 20:17:54,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836849642] [2021-10-15 20:17:54,791 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 20:17:54,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:17:54,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 20:17:54,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 20:17:54,792 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) [2021-10-15 20:17:54,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:17:54,877 INFO L93 Difference]: Finished difference Result 340 states and 495 transitions. [2021-10-15 20:17:54,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 20:17:54,878 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 340 states and 495 transitions. [2021-10-15 20:17:54,881 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 301 [2021-10-15 20:17:54,884 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 340 states to 340 states and 495 transitions. [2021-10-15 20:17:54,884 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 340 [2021-10-15 20:17:54,885 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 340 [2021-10-15 20:17:54,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 340 states and 495 transitions. [2021-10-15 20:17:54,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:17:54,886 INFO L681 BuchiCegarLoop]: Abstraction has 340 states and 495 transitions. [2021-10-15 20:17:54,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states and 495 transitions. [2021-10-15 20:17:54,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 334. [2021-10-15 20:17:54,892 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) [2021-10-15 20:17:54,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 489 transitions. [2021-10-15 20:17:54,894 INFO L704 BuchiCegarLoop]: Abstraction has 334 states and 489 transitions. [2021-10-15 20:17:54,894 INFO L587 BuchiCegarLoop]: Abstraction has 334 states and 489 transitions. [2021-10-15 20:17:54,895 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-15 20:17:54,895 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 334 states and 489 transitions. [2021-10-15 20:17:54,897 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 295 [2021-10-15 20:17:54,897 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:17:54,897 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:17:54,898 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:17:54,898 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:17:54,899 INFO L791 eck$LassoCheckResult]: Stem: 3150#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 3139#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 3131#L51 assume !(0 == mp_add_~a3~0 % 256); 3132#L51-1 mp_add_~nb~0 := 4; 3133#L61 assume !(0 == mp_add_~b3~0 % 256); 3134#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 3145#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 3219#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 3218#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 3217#L76-2 assume !(1 == mp_add_~i~0 % 256); 3215#L77-1 assume !(2 == mp_add_~i~0 % 256); 3213#L78-1 assume !(3 == mp_add_~i~0 % 256); 3211#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 3205#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 3208#L82-2 assume !(1 == mp_add_~i~0 % 256); 3206#L83-1 assume !(2 == mp_add_~i~0 % 256); 3202#L84-1 assume !(3 == mp_add_~i~0 % 256); 3203#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 3236#L87-1 [2021-10-15 20:17:54,899 INFO L793 eck$LassoCheckResult]: Loop: 3236#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 3237#L91-1 assume !(1 == mp_add_~i~0 % 256); 3228#L92-1 assume !(2 == mp_add_~i~0 % 256); 3229#L93-1 assume !(3 == mp_add_~i~0 % 256); 3224#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 3225#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 3260#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 3256#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 3257#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 3329#L87-1 assume !(0 == mp_add_~i~0 % 256); 3289#L91-1 assume !(1 == mp_add_~i~0 % 256); 3288#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 3146#L93-1 assume !(3 == mp_add_~i~0 % 256); 3147#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 3191#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 3283#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 3284#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 3319#L76-2 assume !(1 == mp_add_~i~0 % 256); 3448#L77-1 assume !(2 == mp_add_~i~0 % 256); 3447#L78-1 assume !(3 == mp_add_~i~0 % 256); 3446#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 3442#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 3236#L87-1 [2021-10-15 20:17:54,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:17:54,899 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 4 times [2021-10-15 20:17:54,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:17:54,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086692399] [2021-10-15 20:17:54,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:54,900 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:17:54,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:17:54,915 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:17:54,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:17:54,934 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:17:54,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:17:54,935 INFO L82 PathProgramCache]: Analyzing trace with hash 722523925, now seen corresponding path program 1 times [2021-10-15 20:17:54,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:17:54,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614634241] [2021-10-15 20:17:54,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:54,936 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:17:54,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:17:55,100 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:17:55,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:17:55,100 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614634241] [2021-10-15 20:17:55,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614634241] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 20:17:55,101 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120484952] [2021-10-15 20:17:55,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:55,101 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 20:17:55,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:17:55,104 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 20:17:55,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-15 20:17:55,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:17:55,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-15 20:17:55,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:17:55,494 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:17:55,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120484952] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 20:17:55,495 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 20:17:55,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 5 [2021-10-15 20:17:55,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932444662] [2021-10-15 20:17:55,496 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 20:17:55,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:17:55,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-15 20:17:55,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-15 20:17:55,497 INFO L87 Difference]: Start difference. First operand 334 states and 489 transitions. cyclomatic complexity: 158 Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2021-10-15 20:17:55,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:17:55,716 INFO L93 Difference]: Finished difference Result 359 states and 490 transitions. [2021-10-15 20:17:55,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-15 20:17:55,716 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 359 states and 490 transitions. [2021-10-15 20:17:55,720 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 306 [2021-10-15 20:17:55,723 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 359 states to 359 states and 490 transitions. [2021-10-15 20:17:55,723 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 359 [2021-10-15 20:17:55,725 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 359 [2021-10-15 20:17:55,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 359 states and 490 transitions. [2021-10-15 20:17:55,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:17:55,726 INFO L681 BuchiCegarLoop]: Abstraction has 359 states and 490 transitions. [2021-10-15 20:17:55,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states and 490 transitions. [2021-10-15 20:17:55,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 302. [2021-10-15 20:17:55,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 302 states have (on average 1.4172185430463575) internal successors, (428), 301 states have internal predecessors, (428), 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) [2021-10-15 20:17:55,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 428 transitions. [2021-10-15 20:17:55,735 INFO L704 BuchiCegarLoop]: Abstraction has 302 states and 428 transitions. [2021-10-15 20:17:55,735 INFO L587 BuchiCegarLoop]: Abstraction has 302 states and 428 transitions. [2021-10-15 20:17:55,735 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-10-15 20:17:55,735 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 302 states and 428 transitions. [2021-10-15 20:17:55,737 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 257 [2021-10-15 20:17:55,737 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:17:55,737 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:17:55,739 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:17:55,739 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:17:55,739 INFO L791 eck$LassoCheckResult]: Stem: 3916#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 3906#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 3898#L51 assume !(0 == mp_add_~a3~0 % 256); 3899#L51-1 mp_add_~nb~0 := 4; 3900#L61 assume !(0 == mp_add_~b3~0 % 256); 3901#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 3913#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 3984#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 3983#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 3982#L76-2 assume !(1 == mp_add_~i~0 % 256); 3980#L77-1 assume !(2 == mp_add_~i~0 % 256); 3978#L78-1 assume !(3 == mp_add_~i~0 % 256); 3976#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 3970#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 3973#L82-2 assume !(1 == mp_add_~i~0 % 256); 3971#L83-1 assume !(2 == mp_add_~i~0 % 256); 3967#L84-1 assume !(3 == mp_add_~i~0 % 256); 3968#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 4145#L87-1 [2021-10-15 20:17:55,740 INFO L793 eck$LassoCheckResult]: Loop: 4145#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 4069#L91-1 assume !(1 == mp_add_~i~0 % 256); 4131#L92-1 assume !(2 == mp_add_~i~0 % 256); 4113#L93-1 assume !(3 == mp_add_~i~0 % 256); 4110#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 4109#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 3993#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 3994#L76 assume !(0 == mp_add_~i~0 % 256); 4108#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 4106#L77-1 assume !(2 == mp_add_~i~0 % 256); 4103#L78-1 assume !(3 == mp_add_~i~0 % 256); 4097#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 4093#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 4094#L87-1 assume !(0 == mp_add_~i~0 % 256); 4014#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 4006#L92-1 assume !(2 == mp_add_~i~0 % 256); 3997#L93-1 assume !(3 == mp_add_~i~0 % 256); 3996#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 4062#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 4056#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 4049#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 4050#L76-2 assume !(1 == mp_add_~i~0 % 256); 4154#L77-1 assume !(2 == mp_add_~i~0 % 256); 4152#L78-1 assume !(3 == mp_add_~i~0 % 256); 4150#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 4148#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 4145#L87-1 [2021-10-15 20:17:55,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:17:55,741 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 5 times [2021-10-15 20:17:55,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:17:55,741 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677444388] [2021-10-15 20:17:55,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:55,742 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:17:55,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:17:55,767 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:17:55,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:17:55,796 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:17:55,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:17:55,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1570645289, now seen corresponding path program 1 times [2021-10-15 20:17:55,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:17:55,798 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18130758] [2021-10-15 20:17:55,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:55,799 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:17:55,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:17:55,861 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:17:55,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:17:55,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18130758] [2021-10-15 20:17:55,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18130758] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:17:55,862 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:17:55,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-15 20:17:55,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85458753] [2021-10-15 20:17:55,864 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 20:17:55,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:17:55,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-15 20:17:55,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-15 20:17:55,866 INFO L87 Difference]: Start difference. First operand 302 states and 428 transitions. cyclomatic complexity: 129 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) [2021-10-15 20:17:56,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:17:56,051 INFO L93 Difference]: Finished difference Result 457 states and 646 transitions. [2021-10-15 20:17:56,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-15 20:17:56,051 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 457 states and 646 transitions. [2021-10-15 20:17:56,054 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 406 [2021-10-15 20:17:56,058 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 457 states to 457 states and 646 transitions. [2021-10-15 20:17:56,058 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 457 [2021-10-15 20:17:56,059 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 457 [2021-10-15 20:17:56,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 457 states and 646 transitions. [2021-10-15 20:17:56,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:17:56,060 INFO L681 BuchiCegarLoop]: Abstraction has 457 states and 646 transitions. [2021-10-15 20:17:56,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states and 646 transitions. [2021-10-15 20:17:56,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 344. [2021-10-15 20:17:56,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 344 states have (on average 1.447674418604651) internal successors, (498), 343 states have internal predecessors, (498), 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) [2021-10-15 20:17:56,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 498 transitions. [2021-10-15 20:17:56,069 INFO L704 BuchiCegarLoop]: Abstraction has 344 states and 498 transitions. [2021-10-15 20:17:56,069 INFO L587 BuchiCegarLoop]: Abstraction has 344 states and 498 transitions. [2021-10-15 20:17:56,070 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-10-15 20:17:56,070 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 344 states and 498 transitions. [2021-10-15 20:17:56,072 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 308 [2021-10-15 20:17:56,072 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:17:56,072 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:17:56,073 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:17:56,073 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:17:56,073 INFO L791 eck$LassoCheckResult]: Stem: 4687#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 4674#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 4664#L51 assume !(0 == mp_add_~a3~0 % 256); 4665#L51-1 mp_add_~nb~0 := 4; 4666#L61 assume !(0 == mp_add_~b3~0 % 256); 4667#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 4683#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 4747#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 4746#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 4745#L76-2 assume !(1 == mp_add_~i~0 % 256); 4743#L77-1 assume !(2 == mp_add_~i~0 % 256); 4741#L78-1 assume !(3 == mp_add_~i~0 % 256); 4739#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 4733#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 4736#L82-2 assume !(1 == mp_add_~i~0 % 256); 4734#L83-1 assume !(2 == mp_add_~i~0 % 256); 4730#L84-1 assume !(3 == mp_add_~i~0 % 256); 4731#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 4909#L87-1 [2021-10-15 20:17:56,074 INFO L793 eck$LassoCheckResult]: Loop: 4909#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 4787#L91-1 assume !(1 == mp_add_~i~0 % 256); 4672#L92-1 assume !(2 == mp_add_~i~0 % 256); 4673#L93-1 assume !(3 == mp_add_~i~0 % 256); 4681#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 4682#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 4998#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 4701#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 5001#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 4677#L87-1 assume !(0 == mp_add_~i~0 % 256); 4678#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 4775#L92-1 assume !(2 == mp_add_~i~0 % 256); 4776#L93-1 assume !(3 == mp_add_~i~0 % 256); 4959#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 4958#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 4956#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 4954#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 4955#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 4889#L87-1 assume !(0 == mp_add_~i~0 % 256); 4885#L91-1 assume !(1 == mp_add_~i~0 % 256); 4833#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 4832#L93-1 assume !(3 == mp_add_~i~0 % 256); 4829#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 4717#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 4718#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 4822#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 4823#L76-2 assume !(1 == mp_add_~i~0 % 256); 4972#L77-1 assume !(2 == mp_add_~i~0 % 256); 4969#L78-1 assume !(3 == mp_add_~i~0 % 256); 4964#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 4960#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 4909#L87-1 [2021-10-15 20:17:56,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:17:56,074 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 6 times [2021-10-15 20:17:56,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:17:56,074 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123943888] [2021-10-15 20:17:56,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:56,075 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:17:56,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:17:56,088 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:17:56,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:17:56,126 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:17:56,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:17:56,129 INFO L82 PathProgramCache]: Analyzing trace with hash 856847662, now seen corresponding path program 1 times [2021-10-15 20:17:56,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:17:56,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320178828] [2021-10-15 20:17:56,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:56,130 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:17:56,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:17:56,177 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:17:56,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:17:56,178 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320178828] [2021-10-15 20:17:56,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320178828] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:17:56,178 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:17:56,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-15 20:17:56,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113583425] [2021-10-15 20:17:56,179 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 20:17:56,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:17:56,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-15 20:17:56,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-15 20:17:56,180 INFO L87 Difference]: Start difference. First operand 344 states and 498 transitions. cyclomatic complexity: 156 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) [2021-10-15 20:17:56,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:17:56,257 INFO L93 Difference]: Finished difference Result 409 states and 582 transitions. [2021-10-15 20:17:56,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-15 20:17:56,257 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 409 states and 582 transitions. [2021-10-15 20:17:56,261 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 373 [2021-10-15 20:17:56,265 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 409 states to 409 states and 582 transitions. [2021-10-15 20:17:56,265 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 409 [2021-10-15 20:17:56,266 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 409 [2021-10-15 20:17:56,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 409 states and 582 transitions. [2021-10-15 20:17:56,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:17:56,267 INFO L681 BuchiCegarLoop]: Abstraction has 409 states and 582 transitions. [2021-10-15 20:17:56,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states and 582 transitions. [2021-10-15 20:17:56,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 344. [2021-10-15 20:17:56,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 344 states have (on average 1.433139534883721) internal successors, (493), 343 states have internal predecessors, (493), 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) [2021-10-15 20:17:56,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 493 transitions. [2021-10-15 20:17:56,276 INFO L704 BuchiCegarLoop]: Abstraction has 344 states and 493 transitions. [2021-10-15 20:17:56,277 INFO L587 BuchiCegarLoop]: Abstraction has 344 states and 493 transitions. [2021-10-15 20:17:56,277 INFO L425 BuchiCegarLoop]: ======== Iteration 14============ [2021-10-15 20:17:56,277 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 344 states and 493 transitions. [2021-10-15 20:17:56,279 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 308 [2021-10-15 20:17:56,279 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:17:56,280 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:17:56,280 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:17:56,281 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] [2021-10-15 20:17:56,281 INFO L791 eck$LassoCheckResult]: Stem: 5445#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 5435#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 5427#L51 assume !(0 == mp_add_~a3~0 % 256); 5428#L51-1 mp_add_~nb~0 := 4; 5429#L61 assume !(0 == mp_add_~b3~0 % 256); 5430#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 5749#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 5747#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 5746#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 5448#L76-2 assume !(1 == mp_add_~i~0 % 256); 5449#L77-1 assume !(2 == mp_add_~i~0 % 256); 5750#L78-1 assume !(3 == mp_add_~i~0 % 256); 5694#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 5693#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 5692#L82-2 assume !(1 == mp_add_~i~0 % 256); 5691#L83-1 assume !(2 == mp_add_~i~0 % 256); 5689#L84-1 assume !(3 == mp_add_~i~0 % 256); 5687#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 5681#L87-1 [2021-10-15 20:17:56,281 INFO L793 eck$LassoCheckResult]: Loop: 5681#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 5678#L91-1 assume !(1 == mp_add_~i~0 % 256); 5675#L92-1 assume !(2 == mp_add_~i~0 % 256); 5672#L93-1 assume !(3 == mp_add_~i~0 % 256); 5670#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 5669#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 5666#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 5667#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 5454#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 5436#L87-1 assume !(0 == mp_add_~i~0 % 256); 5437#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 5491#L92-1 assume !(2 == mp_add_~i~0 % 256); 5504#L93-1 assume !(3 == mp_add_~i~0 % 256); 5502#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 5481#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 5482#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 5580#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 5554#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 5548#L87-1 assume !(0 == mp_add_~i~0 % 256); 5492#L91-1 assume !(1 == mp_add_~i~0 % 256); 5488#L92-1 assume !(2 == mp_add_~i~0 % 256); 5486#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 5485#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 5479#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 5480#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 5530#L76 assume !(0 == mp_add_~i~0 % 256); 5566#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 5450#L77-1 assume !(2 == mp_add_~i~0 % 256); 5451#L78-1 assume !(3 == mp_add_~i~0 % 256); 5459#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 5466#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 5643#L82-2 assume !(1 == mp_add_~i~0 % 256); 5698#L83-1 assume !(2 == mp_add_~i~0 % 256); 5690#L84-1 assume !(3 == mp_add_~i~0 % 256); 5686#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 5681#L87-1 [2021-10-15 20:17:56,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:17:56,282 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 7 times [2021-10-15 20:17:56,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:17:56,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134088360] [2021-10-15 20:17:56,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:56,283 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:17:56,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:17:56,308 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:17:56,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:17:56,338 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:17:56,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:17:56,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1265935866, now seen corresponding path program 1 times [2021-10-15 20:17:56,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:17:56,339 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397559158] [2021-10-15 20:17:56,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:56,339 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:17:56,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:17:56,368 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-10-15 20:17:56,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:17:56,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397559158] [2021-10-15 20:17:56,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397559158] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:17:56,368 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:17:56,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 20:17:56,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100106804] [2021-10-15 20:17:56,370 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 20:17:56,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:17:56,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 20:17:56,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 20:17:56,371 INFO L87 Difference]: Start difference. First operand 344 states and 493 transitions. cyclomatic complexity: 151 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) [2021-10-15 20:17:56,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:17:56,448 INFO L93 Difference]: Finished difference Result 347 states and 478 transitions. [2021-10-15 20:17:56,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 20:17:56,449 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 347 states and 478 transitions. [2021-10-15 20:17:56,452 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 311 [2021-10-15 20:17:56,455 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 347 states to 347 states and 478 transitions. [2021-10-15 20:17:56,456 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 347 [2021-10-15 20:17:56,456 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 347 [2021-10-15 20:17:56,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 347 states and 478 transitions. [2021-10-15 20:17:56,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:17:56,457 INFO L681 BuchiCegarLoop]: Abstraction has 347 states and 478 transitions. [2021-10-15 20:17:56,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states and 478 transitions. [2021-10-15 20:17:56,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 311. [2021-10-15 20:17:56,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 311 states have (on average 1.369774919614148) internal successors, (426), 310 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) [2021-10-15 20:17:56,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 426 transitions. [2021-10-15 20:17:56,465 INFO L704 BuchiCegarLoop]: Abstraction has 311 states and 426 transitions. [2021-10-15 20:17:56,465 INFO L587 BuchiCegarLoop]: Abstraction has 311 states and 426 transitions. [2021-10-15 20:17:56,465 INFO L425 BuchiCegarLoop]: ======== Iteration 15============ [2021-10-15 20:17:56,465 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 311 states and 426 transitions. [2021-10-15 20:17:56,468 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 275 [2021-10-15 20:17:56,468 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:17:56,468 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:17:56,469 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:17:56,469 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] [2021-10-15 20:17:56,469 INFO L791 eck$LassoCheckResult]: Stem: 6140#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 6130#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 6121#L51 assume !(0 == mp_add_~a3~0 % 256); 6122#L51-1 mp_add_~nb~0 := 4; 6123#L61 assume !(0 == mp_add_~b3~0 % 256); 6124#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 6419#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 6418#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 6417#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 6416#L76-2 assume !(1 == mp_add_~i~0 % 256); 6415#L77-1 assume !(2 == mp_add_~i~0 % 256); 6413#L78-1 assume !(3 == mp_add_~i~0 % 256); 6324#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 6323#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 6321#L82-2 assume !(1 == mp_add_~i~0 % 256); 6319#L83-1 assume !(2 == mp_add_~i~0 % 256); 6317#L84-1 assume !(3 == mp_add_~i~0 % 256); 6315#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 6314#L87-1 [2021-10-15 20:17:56,469 INFO L793 eck$LassoCheckResult]: Loop: 6314#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 6313#L91-1 assume !(1 == mp_add_~i~0 % 256); 6312#L92-1 assume !(2 == mp_add_~i~0 % 256); 6311#L93-1 assume !(3 == mp_add_~i~0 % 256); 6310#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 6309#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 6307#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 6308#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 6163#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 6234#L87-1 assume !(0 == mp_add_~i~0 % 256); 6206#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 6183#L92-1 assume !(2 == mp_add_~i~0 % 256); 6197#L93-1 assume !(3 == mp_add_~i~0 % 256); 6194#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 6189#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 6157#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 6158#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 6147#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 6148#L87-1 assume !(0 == mp_add_~i~0 % 256); 6182#L91-1 assume !(1 == mp_add_~i~0 % 256); 6180#L92-1 assume !(2 == mp_add_~i~0 % 256); 6177#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 6175#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 6171#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 6172#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 6210#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 6278#L76-2 assume !(1 == mp_add_~i~0 % 256); 6244#L77-1 assume !(2 == mp_add_~i~0 % 256); 6245#L78-1 assume !(3 == mp_add_~i~0 % 256); 6240#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 6241#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 6322#L82-2 assume !(1 == mp_add_~i~0 % 256); 6320#L83-1 assume !(2 == mp_add_~i~0 % 256); 6318#L84-1 assume !(3 == mp_add_~i~0 % 256); 6316#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 6314#L87-1 [2021-10-15 20:17:56,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:17:56,470 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 8 times [2021-10-15 20:17:56,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:17:56,471 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557817533] [2021-10-15 20:17:56,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:56,472 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:17:56,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:17:56,499 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:17:56,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:17:56,525 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:17:56,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:17:56,526 INFO L82 PathProgramCache]: Analyzing trace with hash -1955946050, now seen corresponding path program 1 times [2021-10-15 20:17:56,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:17:56,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840610279] [2021-10-15 20:17:56,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:56,527 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:17:56,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:17:56,610 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-15 20:17:56,611 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:17:56,611 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840610279] [2021-10-15 20:17:56,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840610279] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 20:17:56,611 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853027858] [2021-10-15 20:17:56,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:56,612 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 20:17:56,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:17:56,614 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 20:17:56,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-15 20:17:56,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:17:56,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-15 20:17:56,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:17:56,815 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-15 20:17:56,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853027858] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 20:17:56,815 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 20:17:56,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2021-10-15 20:17:56,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895404112] [2021-10-15 20:17:56,816 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 20:17:56,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:17:56,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-15 20:17:56,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-15 20:17:56,818 INFO L87 Difference]: Start difference. First operand 311 states and 426 transitions. cyclomatic complexity: 117 Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 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) [2021-10-15 20:17:57,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:17:57,435 INFO L93 Difference]: Finished difference Result 414 states and 525 transitions. [2021-10-15 20:17:57,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-15 20:17:57,436 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 414 states and 525 transitions. [2021-10-15 20:17:57,440 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 373 [2021-10-15 20:17:57,444 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 414 states to 414 states and 525 transitions. [2021-10-15 20:17:57,444 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 414 [2021-10-15 20:17:57,445 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 414 [2021-10-15 20:17:57,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 414 states and 525 transitions. [2021-10-15 20:17:57,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:17:57,445 INFO L681 BuchiCegarLoop]: Abstraction has 414 states and 525 transitions. [2021-10-15 20:17:57,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states and 525 transitions. [2021-10-15 20:17:57,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 279. [2021-10-15 20:17:57,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 279 states have (on average 1.3082437275985663) internal successors, (365), 278 states have internal predecessors, (365), 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) [2021-10-15 20:17:57,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 365 transitions. [2021-10-15 20:17:57,453 INFO L704 BuchiCegarLoop]: Abstraction has 279 states and 365 transitions. [2021-10-15 20:17:57,454 INFO L587 BuchiCegarLoop]: Abstraction has 279 states and 365 transitions. [2021-10-15 20:17:57,454 INFO L425 BuchiCegarLoop]: ======== Iteration 16============ [2021-10-15 20:17:57,454 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 279 states and 365 transitions. [2021-10-15 20:17:57,456 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 243 [2021-10-15 20:17:57,456 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:17:57,456 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:17:57,457 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:17:57,457 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] [2021-10-15 20:17:57,457 INFO L791 eck$LassoCheckResult]: Stem: 7015#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 7003#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 6994#L51 assume !(0 == mp_add_~a3~0 % 256); 6995#L51-1 mp_add_~nb~0 := 4; 6996#L61 assume !(0 == mp_add_~b3~0 % 256); 6997#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 7011#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 7233#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 7232#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 7231#L76-2 assume !(1 == mp_add_~i~0 % 256); 7229#L77-1 assume !(2 == mp_add_~i~0 % 256); 7227#L78-1 assume !(3 == mp_add_~i~0 % 256); 7225#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 7219#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 7222#L82-2 assume !(1 == mp_add_~i~0 % 256); 7220#L83-1 assume !(2 == mp_add_~i~0 % 256); 7216#L84-1 assume !(3 == mp_add_~i~0 % 256); 7217#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 7244#L87-1 [2021-10-15 20:17:57,457 INFO L793 eck$LassoCheckResult]: Loop: 7244#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 7242#L91-1 assume !(1 == mp_add_~i~0 % 256); 7211#L92-1 assume !(2 == mp_add_~i~0 % 256); 7209#L93-1 assume !(3 == mp_add_~i~0 % 256); 7210#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 7205#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 7206#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 7202#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 7201#L82 assume !(0 == mp_add_~i~0 % 256); 7200#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 7181#L83-1 assume !(2 == mp_add_~i~0 % 256); 7198#L84-1 assume !(3 == mp_add_~i~0 % 256); 7196#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 7195#L87-1 assume !(0 == mp_add_~i~0 % 256); 7194#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 7094#L92-1 assume !(2 == mp_add_~i~0 % 256); 7191#L93-1 assume !(3 == mp_add_~i~0 % 256); 7189#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 7187#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 7185#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 7167#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 7183#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 7158#L87-1 assume !(0 == mp_add_~i~0 % 256); 7000#L91-1 assume !(1 == mp_add_~i~0 % 256); 7001#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 7002#L93-1 assume !(3 == mp_add_~i~0 % 256); 7048#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 7046#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 7047#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 7129#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 7130#L76-2 assume !(1 == mp_add_~i~0 % 256); 7252#L77-1 assume !(2 == mp_add_~i~0 % 256); 7251#L78-1 assume !(3 == mp_add_~i~0 % 256); 7248#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 7249#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 7258#L82-2 assume !(1 == mp_add_~i~0 % 256); 7256#L83-1 assume !(2 == mp_add_~i~0 % 256); 7254#L84-1 assume !(3 == mp_add_~i~0 % 256); 7245#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 7244#L87-1 [2021-10-15 20:17:57,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:17:57,458 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 9 times [2021-10-15 20:17:57,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:17:57,458 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181615983] [2021-10-15 20:17:57,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:57,458 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:17:57,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:17:57,472 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:17:57,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:17:57,488 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:17:57,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:17:57,489 INFO L82 PathProgramCache]: Analyzing trace with hash -593187128, now seen corresponding path program 1 times [2021-10-15 20:17:57,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:17:57,489 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136150470] [2021-10-15 20:17:57,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:57,489 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:17:57,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:17:57,597 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 23 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:17:57,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:17:57,598 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136150470] [2021-10-15 20:17:57,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136150470] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 20:17:57,598 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [129352461] [2021-10-15 20:17:57,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:57,598 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 20:17:57,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:17:57,628 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 20:17:57,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-15 20:17:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:17:57,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-15 20:17:57,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:17:57,901 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-15 20:17:57,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [129352461] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:17:57,902 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-15 20:17:57,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2021-10-15 20:17:57,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011463648] [2021-10-15 20:17:57,902 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 20:17:57,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:17:57,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-15 20:17:57,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-15 20:17:57,904 INFO L87 Difference]: Start difference. First operand 279 states and 365 transitions. cyclomatic complexity: 88 Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 20:17:58,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:17:58,101 INFO L93 Difference]: Finished difference Result 348 states and 433 transitions. [2021-10-15 20:17:58,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-15 20:17:58,102 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 348 states and 433 transitions. [2021-10-15 20:17:58,105 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 312 [2021-10-15 20:17:58,108 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 348 states to 348 states and 433 transitions. [2021-10-15 20:17:58,109 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 348 [2021-10-15 20:17:58,109 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 348 [2021-10-15 20:17:58,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 348 states and 433 transitions. [2021-10-15 20:17:58,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:17:58,110 INFO L681 BuchiCegarLoop]: Abstraction has 348 states and 433 transitions. [2021-10-15 20:17:58,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states and 433 transitions. [2021-10-15 20:17:58,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 292. [2021-10-15 20:17:58,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 292 states have (on average 1.2671232876712328) internal successors, (370), 291 states have internal predecessors, (370), 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) [2021-10-15 20:17:58,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 370 transitions. [2021-10-15 20:17:58,118 INFO L704 BuchiCegarLoop]: Abstraction has 292 states and 370 transitions. [2021-10-15 20:17:58,118 INFO L587 BuchiCegarLoop]: Abstraction has 292 states and 370 transitions. [2021-10-15 20:17:58,118 INFO L425 BuchiCegarLoop]: ======== Iteration 17============ [2021-10-15 20:17:58,118 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 292 states and 370 transitions. [2021-10-15 20:17:58,120 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 256 [2021-10-15 20:17:58,120 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:17:58,120 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:17:58,123 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:17:58,123 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [4, 4, 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] [2021-10-15 20:17:58,123 INFO L791 eck$LassoCheckResult]: Stem: 7768#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 7758#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 7750#L51 assume !(0 == mp_add_~a3~0 % 256); 7751#L51-1 mp_add_~nb~0 := 4; 7752#L61 assume !(0 == mp_add_~b3~0 % 256); 7753#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 8017#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 8015#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 8013#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 8011#L76-2 assume !(1 == mp_add_~i~0 % 256); 8009#L77-1 assume !(2 == mp_add_~i~0 % 256); 8006#L78-1 assume !(3 == mp_add_~i~0 % 256); 7991#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 7990#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 7989#L82-2 assume !(1 == mp_add_~i~0 % 256); 7988#L83-1 assume !(2 == mp_add_~i~0 % 256); 7987#L84-1 assume !(3 == mp_add_~i~0 % 256); 7964#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 7962#L87-1 [2021-10-15 20:17:58,123 INFO L793 eck$LassoCheckResult]: Loop: 7962#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 7960#L91-1 assume !(1 == mp_add_~i~0 % 256); 7959#L92-1 assume !(2 == mp_add_~i~0 % 256); 7957#L93-1 assume !(3 == mp_add_~i~0 % 256); 7955#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 7953#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 7952#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 7927#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 7841#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 7842#L87-1 assume !(0 == mp_add_~i~0 % 256); 7835#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 7815#L92-1 assume !(2 == mp_add_~i~0 % 256); 7827#L93-1 assume !(3 == mp_add_~i~0 % 256); 7828#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 7817#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 7818#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 8030#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 8038#L82 assume !(0 == mp_add_~i~0 % 256); 8037#L82-2 assume !(1 == mp_add_~i~0 % 256); 8036#L83-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b2~0 % 256; 7780#L84-1 assume !(3 == mp_add_~i~0 % 256); 7774#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 7759#L87-1 assume !(0 == mp_add_~i~0 % 256); 7760#L91-1 assume !(1 == mp_add_~i~0 % 256); 7821#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 7811#L93-1 assume !(3 == mp_add_~i~0 % 256); 7819#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 7785#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 7786#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 7918#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 7917#L82 assume !(0 == mp_add_~i~0 % 256); 7916#L82-2 assume !(1 == mp_add_~i~0 % 256); 7915#L83-1 assume !(2 == mp_add_~i~0 % 256); 7914#L84-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b3~0 % 256; 7911#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 7826#L87-1 assume !(0 == mp_add_~i~0 % 256); 7813#L91-1 assume !(1 == mp_add_~i~0 % 256); 7809#L92-1 assume !(2 == mp_add_~i~0 % 256); 7805#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 7803#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 7800#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 7801#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 7908#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 7909#L76-2 assume !(1 == mp_add_~i~0 % 256); 7986#L77-1 assume !(2 == mp_add_~i~0 % 256); 7985#L78-1 assume !(3 == mp_add_~i~0 % 256); 7984#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 7970#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 7981#L82-2 assume !(1 == mp_add_~i~0 % 256); 7979#L83-1 assume !(2 == mp_add_~i~0 % 256); 7968#L84-1 assume !(3 == mp_add_~i~0 % 256); 7966#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 7962#L87-1 [2021-10-15 20:17:58,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:17:58,124 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 10 times [2021-10-15 20:17:58,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:17:58,124 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979724510] [2021-10-15 20:17:58,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:58,124 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:17:58,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:17:58,139 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:17:58,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:17:58,155 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:17:58,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:17:58,156 INFO L82 PathProgramCache]: Analyzing trace with hash 1797868163, now seen corresponding path program 1 times [2021-10-15 20:17:58,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:17:58,157 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499107335] [2021-10-15 20:17:58,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:58,158 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:17:58,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:17:58,228 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-15 20:17:58,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:17:58,228 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499107335] [2021-10-15 20:17:58,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499107335] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:17:58,229 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:17:58,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-15 20:17:58,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342536207] [2021-10-15 20:17:58,229 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 20:17:58,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:17:58,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-15 20:17:58,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-15 20:17:58,230 INFO L87 Difference]: Start difference. First operand 292 states and 370 transitions. cyclomatic complexity: 80 Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2021-10-15 20:17:58,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:17:58,546 INFO L93 Difference]: Finished difference Result 588 states and 723 transitions. [2021-10-15 20:17:58,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-15 20:17:58,547 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 588 states and 723 transitions. [2021-10-15 20:17:58,552 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 461 [2021-10-15 20:17:58,557 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 588 states to 579 states and 712 transitions. [2021-10-15 20:17:58,557 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 579 [2021-10-15 20:17:58,558 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 579 [2021-10-15 20:17:58,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 579 states and 712 transitions. [2021-10-15 20:17:58,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:17:58,559 INFO L681 BuchiCegarLoop]: Abstraction has 579 states and 712 transitions. [2021-10-15 20:17:58,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states and 712 transitions. [2021-10-15 20:17:58,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 466. [2021-10-15 20:17:58,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 466 states have (on average 1.2489270386266094) internal successors, (582), 465 states have internal predecessors, (582), 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) [2021-10-15 20:17:58,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 582 transitions. [2021-10-15 20:17:58,571 INFO L704 BuchiCegarLoop]: Abstraction has 466 states and 582 transitions. [2021-10-15 20:17:58,571 INFO L587 BuchiCegarLoop]: Abstraction has 466 states and 582 transitions. [2021-10-15 20:17:58,571 INFO L425 BuchiCegarLoop]: ======== Iteration 18============ [2021-10-15 20:17:58,571 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 466 states and 582 transitions. [2021-10-15 20:17:58,574 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 392 [2021-10-15 20:17:58,574 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:17:58,574 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:17:58,575 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:17:58,575 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:17:58,576 INFO L791 eck$LassoCheckResult]: Stem: 8666#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 8656#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 8648#L51 assume !(0 == mp_add_~a3~0 % 256); 8649#L51-1 mp_add_~nb~0 := 4; 8650#L61 assume !(0 == mp_add_~b3~0 % 256); 8651#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 9035#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 9033#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 8684#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 8685#L76-2 assume !(1 == mp_add_~i~0 % 256); 9068#L77-1 assume !(2 == mp_add_~i~0 % 256); 9066#L78-1 assume !(3 == mp_add_~i~0 % 256); 9064#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 9022#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 9058#L82-2 assume !(1 == mp_add_~i~0 % 256); 9055#L83-1 assume !(2 == mp_add_~i~0 % 256); 9052#L84-1 assume !(3 == mp_add_~i~0 % 256); 9049#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 9020#L87-1 [2021-10-15 20:17:58,576 INFO L793 eck$LassoCheckResult]: Loop: 9020#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 9017#L91-1 assume !(1 == mp_add_~i~0 % 256); 9014#L92-1 assume !(2 == mp_add_~i~0 % 256); 9010#L93-1 assume !(3 == mp_add_~i~0 % 256); 9006#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 9001#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 8994#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 8984#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 8981#L82 assume !(0 == mp_add_~i~0 % 256); 8979#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 8933#L83-1 assume !(2 == mp_add_~i~0 % 256); 8976#L84-1 assume !(3 == mp_add_~i~0 % 256); 8973#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 8971#L87-1 assume !(0 == mp_add_~i~0 % 256); 8969#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 8889#L92-1 assume !(2 == mp_add_~i~0 % 256); 8964#L93-1 assume !(3 == mp_add_~i~0 % 256); 8961#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 8958#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 8955#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 8916#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 8726#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 8724#L87-1 assume !(0 == mp_add_~i~0 % 256); 8723#L91-1 assume !(1 == mp_add_~i~0 % 256); 8706#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 8704#L93-1 assume !(3 == mp_add_~i~0 % 256); 8702#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 8703#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 8751#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 8752#L76 assume !(0 == mp_add_~i~0 % 256); 8780#L76-2 assume !(1 == mp_add_~i~0 % 256); 8776#L77-1 assume !(2 == mp_add_~i~0 % 256); 8777#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 8748#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 8730#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 8729#L87-1 assume !(0 == mp_add_~i~0 % 256); 8728#L91-1 assume !(1 == mp_add_~i~0 % 256); 8727#L92-1 assume !(2 == mp_add_~i~0 % 256); 8713#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 8714#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 8709#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 8710#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 8874#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 8895#L76-2 assume !(1 == mp_add_~i~0 % 256); 9110#L77-1 assume !(2 == mp_add_~i~0 % 256); 9108#L78-1 assume !(3 == mp_add_~i~0 % 256); 9061#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 9059#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 9056#L82-2 assume !(1 == mp_add_~i~0 % 256); 9053#L83-1 assume !(2 == mp_add_~i~0 % 256); 9050#L84-1 assume !(3 == mp_add_~i~0 % 256); 9025#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 9020#L87-1 [2021-10-15 20:17:58,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:17:58,576 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 11 times [2021-10-15 20:17:58,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:17:58,577 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437817015] [2021-10-15 20:17:58,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:58,577 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:17:58,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:17:58,590 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:17:58,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:17:58,627 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:17:58,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:17:58,627 INFO L82 PathProgramCache]: Analyzing trace with hash 302130057, now seen corresponding path program 1 times [2021-10-15 20:17:58,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:17:58,628 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897328284] [2021-10-15 20:17:58,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:58,628 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:17:58,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:17:58,685 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 50 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-15 20:17:58,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:17:58,685 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897328284] [2021-10-15 20:17:58,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897328284] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 20:17:58,685 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408639697] [2021-10-15 20:17:58,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:58,686 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 20:17:58,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:17:58,692 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 20:17:58,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-15 20:17:58,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:17:58,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-15 20:17:58,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:17:59,033 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 51 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-15 20:17:59,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408639697] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 20:17:59,033 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 20:17:59,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-10-15 20:17:59,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093939145] [2021-10-15 20:17:59,034 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 20:17:59,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:17:59,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-15 20:17:59,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-15 20:17:59,035 INFO L87 Difference]: Start difference. First operand 466 states and 582 transitions. cyclomatic complexity: 119 Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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) [2021-10-15 20:17:59,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:17:59,877 INFO L93 Difference]: Finished difference Result 963 states and 1187 transitions. [2021-10-15 20:17:59,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-15 20:17:59,878 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 963 states and 1187 transitions. [2021-10-15 20:17:59,887 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 804 [2021-10-15 20:17:59,895 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 963 states to 961 states and 1185 transitions. [2021-10-15 20:17:59,896 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 961 [2021-10-15 20:17:59,897 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 961 [2021-10-15 20:17:59,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 961 states and 1185 transitions. [2021-10-15 20:17:59,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:17:59,898 INFO L681 BuchiCegarLoop]: Abstraction has 961 states and 1185 transitions. [2021-10-15 20:17:59,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states and 1185 transitions. [2021-10-15 20:17:59,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 689. [2021-10-15 20:17:59,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 689 states have (on average 1.274310595065312) internal successors, (878), 688 states have internal predecessors, (878), 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) [2021-10-15 20:17:59,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 878 transitions. [2021-10-15 20:17:59,931 INFO L704 BuchiCegarLoop]: Abstraction has 689 states and 878 transitions. [2021-10-15 20:17:59,931 INFO L587 BuchiCegarLoop]: Abstraction has 689 states and 878 transitions. [2021-10-15 20:17:59,931 INFO L425 BuchiCegarLoop]: ======== Iteration 19============ [2021-10-15 20:17:59,931 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 689 states and 878 transitions. [2021-10-15 20:17:59,936 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 615 [2021-10-15 20:17:59,936 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:17:59,936 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:17:59,937 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:17:59,937 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:17:59,937 INFO L791 eck$LassoCheckResult]: Stem: 10290#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 10279#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 10272#L51 assume !(0 == mp_add_~a3~0 % 256); 10273#L51-1 mp_add_~nb~0 := 4; 10274#L61 assume !(0 == mp_add_~b3~0 % 256); 10275#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 10694#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 10695#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 10689#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 10690#L76-2 assume !(1 == mp_add_~i~0 % 256); 10673#L77-1 assume !(2 == mp_add_~i~0 % 256); 10674#L78-1 assume !(3 == mp_add_~i~0 % 256); 10651#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 10650#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 10648#L82-2 assume !(1 == mp_add_~i~0 % 256); 10646#L83-1 assume !(2 == mp_add_~i~0 % 256); 10644#L84-1 assume !(3 == mp_add_~i~0 % 256); 10605#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 10601#L87-1 [2021-10-15 20:17:59,943 INFO L793 eck$LassoCheckResult]: Loop: 10601#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 10597#L91-1 assume !(1 == mp_add_~i~0 % 256); 10594#L92-1 assume !(2 == mp_add_~i~0 % 256); 10591#L93-1 assume !(3 == mp_add_~i~0 % 256); 10588#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 10585#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 10580#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 10576#L76 assume !(0 == mp_add_~i~0 % 256); 10572#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 10541#L77-1 assume !(2 == mp_add_~i~0 % 256); 10567#L78-1 assume !(3 == mp_add_~i~0 % 256); 10563#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 10534#L82 assume !(0 == mp_add_~i~0 % 256); 10532#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 10431#L83-1 assume !(2 == mp_add_~i~0 % 256); 10521#L84-1 assume !(3 == mp_add_~i~0 % 256); 10519#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 10518#L87-1 assume !(0 == mp_add_~i~0 % 256); 10516#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 10515#L92-1 assume !(2 == mp_add_~i~0 % 256); 10514#L93-1 assume !(3 == mp_add_~i~0 % 256); 10512#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 10510#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 10507#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 10505#L76 assume !(0 == mp_add_~i~0 % 256); 10504#L76-2 assume !(1 == mp_add_~i~0 % 256); 10498#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 10424#L78-1 assume !(3 == mp_add_~i~0 % 256); 10425#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 10418#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 10416#L87-1 assume !(0 == mp_add_~i~0 % 256); 10417#L91-1 assume !(1 == mp_add_~i~0 % 256); 10530#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 10410#L93-1 assume !(3 == mp_add_~i~0 % 256); 10526#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 10524#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 10522#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 10523#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 10583#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 10564#L87-1 assume !(0 == mp_add_~i~0 % 256); 10664#L91-1 assume !(1 == mp_add_~i~0 % 256); 10658#L92-1 assume !(2 == mp_add_~i~0 % 256); 10643#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 10490#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 10487#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 10483#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 10477#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 10478#L76-2 assume !(1 == mp_add_~i~0 % 256); 10654#L77-1 assume !(2 == mp_add_~i~0 % 256); 10653#L78-1 assume !(3 == mp_add_~i~0 % 256); 10652#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 10610#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 10649#L82-2 assume !(1 == mp_add_~i~0 % 256); 10647#L83-1 assume !(2 == mp_add_~i~0 % 256); 10645#L84-1 assume !(3 == mp_add_~i~0 % 256); 10641#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 10601#L87-1 [2021-10-15 20:17:59,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:17:59,943 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 12 times [2021-10-15 20:17:59,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:17:59,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621318941] [2021-10-15 20:17:59,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:59,944 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:17:59,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:17:59,959 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:17:59,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:17:59,981 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:17:59,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:17:59,983 INFO L82 PathProgramCache]: Analyzing trace with hash 2112972027, now seen corresponding path program 1 times [2021-10-15 20:17:59,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:17:59,983 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119382504] [2021-10-15 20:17:59,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:17:59,984 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:17:59,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:18:00,093 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 19 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:18:00,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:18:00,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119382504] [2021-10-15 20:18:00,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119382504] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 20:18:00,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2041459033] [2021-10-15 20:18:00,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:18:00,095 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 20:18:00,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:18:00,100 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 20:18:00,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-15 20:18:00,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:18:00,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-15 20:18:00,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:18:00,462 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-10-15 20:18:00,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2041459033] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:18:00,462 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-15 20:18:00,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2021-10-15 20:18:00,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526240132] [2021-10-15 20:18:00,464 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 20:18:00,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:18:00,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-15 20:18:00,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-15 20:18:00,465 INFO L87 Difference]: Start difference. First operand 689 states and 878 transitions. cyclomatic complexity: 194 Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2021-10-15 20:18:00,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:18:00,726 INFO L93 Difference]: Finished difference Result 785 states and 918 transitions. [2021-10-15 20:18:00,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-15 20:18:00,726 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 785 states and 918 transitions. [2021-10-15 20:18:00,734 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 696 [2021-10-15 20:18:00,740 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 785 states to 738 states and 848 transitions. [2021-10-15 20:18:00,740 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 738 [2021-10-15 20:18:00,741 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 738 [2021-10-15 20:18:00,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 738 states and 848 transitions. [2021-10-15 20:18:00,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:18:00,744 INFO L681 BuchiCegarLoop]: Abstraction has 738 states and 848 transitions. [2021-10-15 20:18:00,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states and 848 transitions. [2021-10-15 20:18:00,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 601. [2021-10-15 20:18:00,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 601 states have (on average 1.1763727121464227) internal successors, (707), 600 states have internal predecessors, (707), 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) [2021-10-15 20:18:00,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 707 transitions. [2021-10-15 20:18:00,759 INFO L704 BuchiCegarLoop]: Abstraction has 601 states and 707 transitions. [2021-10-15 20:18:00,759 INFO L587 BuchiCegarLoop]: Abstraction has 601 states and 707 transitions. [2021-10-15 20:18:00,759 INFO L425 BuchiCegarLoop]: ======== Iteration 20============ [2021-10-15 20:18:00,760 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 601 states and 707 transitions. [2021-10-15 20:18:00,763 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 566 [2021-10-15 20:18:00,765 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:18:00,765 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:18:00,766 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:18:00,766 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:18:00,766 INFO L791 eck$LassoCheckResult]: Stem: 11940#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 11932#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 11924#L51 assume !(0 == mp_add_~a3~0 % 256); 11925#L51-1 mp_add_~nb~0 := 4; 11926#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 11928#L63 assume 0 == mp_add_~b2~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 11929#L65 assume 0 == mp_add_~b1~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 11960#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 12261#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 12262#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 12255#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 12256#L76-2 assume !(1 == mp_add_~i~0 % 256); 12250#L77-1 assume !(2 == mp_add_~i~0 % 256); 12251#L78-1 assume !(3 == mp_add_~i~0 % 256); 12292#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 12178#L81 [2021-10-15 20:18:00,766 INFO L793 eck$LassoCheckResult]: Loop: 12178#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 12149#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 12291#L91-1 assume !(1 == mp_add_~i~0 % 256); 12290#L92-1 assume !(2 == mp_add_~i~0 % 256); 12289#L93-1 assume !(3 == mp_add_~i~0 % 256); 12288#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 12287#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 12286#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 12285#L76 assume !(0 == mp_add_~i~0 % 256); 12284#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 12181#L77-1 assume !(2 == mp_add_~i~0 % 256); 12283#L78-1 assume !(3 == mp_add_~i~0 % 256); 12282#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 12114#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 12116#L87-1 assume !(0 == mp_add_~i~0 % 256); 12281#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 12020#L92-1 assume !(2 == mp_add_~i~0 % 256); 12280#L93-1 assume !(3 == mp_add_~i~0 % 256); 12279#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 12278#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 12277#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 12276#L76 assume !(0 == mp_add_~i~0 % 256); 12275#L76-2 assume !(1 == mp_add_~i~0 % 256); 12274#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 12176#L78-1 assume !(3 == mp_add_~i~0 % 256); 12084#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 12273#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 12063#L87-1 assume !(0 == mp_add_~i~0 % 256); 12272#L91-1 assume !(1 == mp_add_~i~0 % 256); 12271#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 12124#L93-1 assume !(3 == mp_add_~i~0 % 256); 12270#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 12269#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 12268#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 12267#L76 assume !(0 == mp_add_~i~0 % 256); 12266#L76-2 assume !(1 == mp_add_~i~0 % 256); 12265#L77-1 assume !(2 == mp_add_~i~0 % 256); 12252#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 12047#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 12246#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 12211#L87-1 assume !(0 == mp_add_~i~0 % 256); 12242#L91-1 assume !(1 == mp_add_~i~0 % 256); 12240#L92-1 assume !(2 == mp_add_~i~0 % 256); 12226#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 12010#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 12011#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 11998#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 11992#L76 assume !(0 == mp_add_~i~0 % 256); 11989#L76-2 assume !(1 == mp_add_~i~0 % 256); 11985#L77-1 assume !(2 == mp_add_~i~0 % 256); 11986#L78-1 assume !(3 == mp_add_~i~0 % 256); 12203#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 12198#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 12192#L87-1 assume !(0 == mp_add_~i~0 % 256); 12142#L91-1 assume !(1 == mp_add_~i~0 % 256); 12140#L92-1 assume !(2 == mp_add_~i~0 % 256); 12121#L93-1 assume !(3 == mp_add_~i~0 % 256); 12099#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 12008#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 12009#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 12184#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 12185#L76-2 assume !(1 == mp_add_~i~0 % 256); 12186#L77-1 assume !(2 == mp_add_~i~0 % 256); 12182#L78-1 assume !(3 == mp_add_~i~0 % 256); 12177#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 12178#L81 [2021-10-15 20:18:00,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:18:00,767 INFO L82 PathProgramCache]: Analyzing trace with hash -890288343, now seen corresponding path program 1 times [2021-10-15 20:18:00,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:18:00,767 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402509193] [2021-10-15 20:18:00,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:18:00,768 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:18:00,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:18:00,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:18:00,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:18:00,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402509193] [2021-10-15 20:18:00,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402509193] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:18:00,876 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:18:00,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-15 20:18:00,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907618227] [2021-10-15 20:18:00,876 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-15 20:18:00,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:18:00,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1197554810, now seen corresponding path program 1 times [2021-10-15 20:18:00,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:18:00,877 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039742209] [2021-10-15 20:18:00,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:18:00,878 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:18:00,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:18:00,991 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 24 proven. 106 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:18:00,992 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:18:00,992 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039742209] [2021-10-15 20:18:00,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039742209] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 20:18:00,992 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104573755] [2021-10-15 20:18:00,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:18:00,993 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 20:18:00,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:18:00,996 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 20:18:01,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-15 20:18:01,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:18:01,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-15 20:18:01,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:18:01,726 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 83 proven. 10 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-10-15 20:18:01,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1104573755] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 20:18:01,726 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 20:18:01,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 10 [2021-10-15 20:18:01,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879793899] [2021-10-15 20:18:01,727 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 20:18:01,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:18:01,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-15 20:18:01,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-15 20:18:01,728 INFO L87 Difference]: Start difference. First operand 601 states and 707 transitions. cyclomatic complexity: 111 Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 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) [2021-10-15 20:18:02,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:18:02,373 INFO L93 Difference]: Finished difference Result 2371 states and 2782 transitions. [2021-10-15 20:18:02,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-15 20:18:02,373 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2371 states and 2782 transitions. [2021-10-15 20:18:02,392 INFO L131 ngComponentsAnalysis]: Automaton has 20 accepting balls. 2264 [2021-10-15 20:18:02,410 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2371 states to 2371 states and 2782 transitions. [2021-10-15 20:18:02,410 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2371 [2021-10-15 20:18:02,413 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2371 [2021-10-15 20:18:02,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2371 states and 2782 transitions. [2021-10-15 20:18:02,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:18:02,417 INFO L681 BuchiCegarLoop]: Abstraction has 2371 states and 2782 transitions. [2021-10-15 20:18:02,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2371 states and 2782 transitions. [2021-10-15 20:18:02,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2371 to 593. [2021-10-15 20:18:02,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 593 states have (on average 1.1770657672849916) internal successors, (698), 592 states have internal predecessors, (698), 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) [2021-10-15 20:18:02,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 698 transitions. [2021-10-15 20:18:02,441 INFO L704 BuchiCegarLoop]: Abstraction has 593 states and 698 transitions. [2021-10-15 20:18:02,441 INFO L587 BuchiCegarLoop]: Abstraction has 593 states and 698 transitions. [2021-10-15 20:18:02,441 INFO L425 BuchiCegarLoop]: ======== Iteration 21============ [2021-10-15 20:18:02,441 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 593 states and 698 transitions. [2021-10-15 20:18:02,445 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 566 [2021-10-15 20:18:02,445 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:18:02,445 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:18:02,446 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:18:02,446 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:18:02,446 INFO L791 eck$LassoCheckResult]: Stem: 15128#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 15119#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 15110#L51 assume !(0 == mp_add_~a3~0 % 256); 15111#L51-1 mp_add_~nb~0 := 4; 15112#L61 assume !(0 == mp_add_~b3~0 % 256); 15113#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 15126#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 15484#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 15483#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 15482#L76-2 assume !(1 == mp_add_~i~0 % 256); 15481#L77-1 assume !(2 == mp_add_~i~0 % 256); 15480#L78-1 assume !(3 == mp_add_~i~0 % 256); 15478#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 15479#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 15699#L82-2 assume !(1 == mp_add_~i~0 % 256); 15698#L83-1 assume !(2 == mp_add_~i~0 % 256); 15697#L84-1 assume !(3 == mp_add_~i~0 % 256); 15696#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 15406#L87-1 [2021-10-15 20:18:02,446 INFO L793 eck$LassoCheckResult]: Loop: 15406#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 15401#L91-1 assume !(1 == mp_add_~i~0 % 256); 15396#L92-1 assume !(2 == mp_add_~i~0 % 256); 15390#L93-1 assume !(3 == mp_add_~i~0 % 256); 15367#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 15365#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 15361#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 15358#L76 assume !(0 == mp_add_~i~0 % 256); 15355#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 15353#L77-1 assume !(2 == mp_add_~i~0 % 256); 15350#L78-1 assume !(3 == mp_add_~i~0 % 256); 15344#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 15340#L82 assume !(0 == mp_add_~i~0 % 256); 15338#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 15336#L83-1 assume !(2 == mp_add_~i~0 % 256); 15334#L84-1 assume !(3 == mp_add_~i~0 % 256); 15331#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 15329#L87-1 assume !(0 == mp_add_~i~0 % 256); 15327#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 15323#L92-1 assume !(2 == mp_add_~i~0 % 256); 15319#L93-1 assume !(3 == mp_add_~i~0 % 256); 15316#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 15313#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 15311#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 15287#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 15275#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 15272#L87-1 assume !(0 == mp_add_~i~0 % 256); 15270#L91-1 assume !(1 == mp_add_~i~0 % 256); 15266#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 15261#L93-1 assume !(3 == mp_add_~i~0 % 256); 15257#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 15253#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 15248#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 15241#L76 assume !(0 == mp_add_~i~0 % 256); 15236#L76-2 assume !(1 == mp_add_~i~0 % 256); 15231#L77-1 assume !(2 == mp_add_~i~0 % 256); 15226#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 15219#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 15217#L82 assume !(0 == mp_add_~i~0 % 256); 15216#L82-2 assume !(1 == mp_add_~i~0 % 256); 15215#L83-1 assume !(2 == mp_add_~i~0 % 256); 15212#L84-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b3~0 % 256; 15213#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 15202#L87-1 assume !(0 == mp_add_~i~0 % 256); 15203#L91-1 assume !(1 == mp_add_~i~0 % 256); 15194#L92-1 assume !(2 == mp_add_~i~0 % 256); 15195#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 15190#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 15191#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 15185#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 15187#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 15439#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 15438#L87-1 assume !(0 == mp_add_~i~0 % 256); 15437#L91-1 assume !(1 == mp_add_~i~0 % 256); 15436#L92-1 assume !(2 == mp_add_~i~0 % 256); 15260#L93-1 assume !(3 == mp_add_~i~0 % 256); 15256#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 15252#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 15246#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 15239#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 15240#L76-2 assume !(1 == mp_add_~i~0 % 256); 15476#L77-1 assume !(2 == mp_add_~i~0 % 256); 15475#L78-1 assume !(3 == mp_add_~i~0 % 256); 15473#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 15474#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 15477#L82-2 assume !(1 == mp_add_~i~0 % 256); 15451#L83-1 assume !(2 == mp_add_~i~0 % 256); 15412#L84-1 assume !(3 == mp_add_~i~0 % 256); 15409#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 15406#L87-1 [2021-10-15 20:18:02,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:18:02,447 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 13 times [2021-10-15 20:18:02,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:18:02,447 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162198742] [2021-10-15 20:18:02,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:18:02,448 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:18:02,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:18:02,462 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:18:02,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:18:02,478 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:18:02,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:18:02,479 INFO L82 PathProgramCache]: Analyzing trace with hash -455989548, now seen corresponding path program 1 times [2021-10-15 20:18:02,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:18:02,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161927373] [2021-10-15 20:18:02,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:18:02,479 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:18:02,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:18:02,564 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-10-15 20:18:02,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:18:02,564 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161927373] [2021-10-15 20:18:02,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161927373] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:18:02,564 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:18:02,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-15 20:18:02,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615477333] [2021-10-15 20:18:02,565 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 20:18:02,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:18:02,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-15 20:18:02,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-15 20:18:02,566 INFO L87 Difference]: Start difference. First operand 593 states and 698 transitions. cyclomatic complexity: 110 Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2021-10-15 20:18:02,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:18:02,998 INFO L93 Difference]: Finished difference Result 836 states and 964 transitions. [2021-10-15 20:18:02,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-15 20:18:02,999 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 836 states and 964 transitions. [2021-10-15 20:18:03,004 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 753 [2021-10-15 20:18:03,010 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 836 states to 819 states and 945 transitions. [2021-10-15 20:18:03,010 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 819 [2021-10-15 20:18:03,012 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 819 [2021-10-15 20:18:03,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 819 states and 945 transitions. [2021-10-15 20:18:03,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:18:03,013 INFO L681 BuchiCegarLoop]: Abstraction has 819 states and 945 transitions. [2021-10-15 20:18:03,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states and 945 transitions. [2021-10-15 20:18:03,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 712. [2021-10-15 20:18:03,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 712 states have (on average 1.1713483146067416) internal successors, (834), 711 states have internal predecessors, (834), 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) [2021-10-15 20:18:03,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 834 transitions. [2021-10-15 20:18:03,029 INFO L704 BuchiCegarLoop]: Abstraction has 712 states and 834 transitions. [2021-10-15 20:18:03,029 INFO L587 BuchiCegarLoop]: Abstraction has 712 states and 834 transitions. [2021-10-15 20:18:03,029 INFO L425 BuchiCegarLoop]: ======== Iteration 22============ [2021-10-15 20:18:03,029 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 712 states and 834 transitions. [2021-10-15 20:18:03,033 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 685 [2021-10-15 20:18:03,033 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:18:03,033 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:18:03,034 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:18:03,034 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:18:03,034 INFO L791 eck$LassoCheckResult]: Stem: 16584#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 16576#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 16568#L51 assume !(0 == mp_add_~a3~0 % 256); 16569#L51-1 mp_add_~nb~0 := 4; 16570#L61 assume !(0 == mp_add_~b3~0 % 256); 16571#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 16581#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 16854#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 16852#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 16853#L76-2 assume !(1 == mp_add_~i~0 % 256); 16848#L77-1 assume !(2 == mp_add_~i~0 % 256); 16849#L78-1 assume !(3 == mp_add_~i~0 % 256); 16842#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 16843#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 16832#L82-2 assume !(1 == mp_add_~i~0 % 256); 16833#L83-1 assume !(2 == mp_add_~i~0 % 256); 16821#L84-1 assume !(3 == mp_add_~i~0 % 256); 16822#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 16799#L87-1 [2021-10-15 20:18:03,035 INFO L793 eck$LassoCheckResult]: Loop: 16799#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 16797#L91-1 assume !(1 == mp_add_~i~0 % 256); 16795#L92-1 assume !(2 == mp_add_~i~0 % 256); 16793#L93-1 assume !(3 == mp_add_~i~0 % 256); 16791#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 16789#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 16785#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 16782#L76 assume !(0 == mp_add_~i~0 % 256); 16779#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 16777#L77-1 assume !(2 == mp_add_~i~0 % 256); 16765#L78-1 assume !(3 == mp_add_~i~0 % 256); 16766#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 16772#L82 assume !(0 == mp_add_~i~0 % 256); 16771#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 16770#L83-1 assume !(2 == mp_add_~i~0 % 256); 16768#L84-1 assume !(3 == mp_add_~i~0 % 256); 16762#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 16759#L87-1 assume !(0 == mp_add_~i~0 % 256); 16756#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 16752#L92-1 assume !(2 == mp_add_~i~0 % 256); 16748#L93-1 assume !(3 == mp_add_~i~0 % 256); 16745#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 16742#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 16738#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 16735#L76 assume !(0 == mp_add_~i~0 % 256); 16731#L76-2 assume !(1 == mp_add_~i~0 % 256); 16727#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 16721#L78-1 assume !(3 == mp_add_~i~0 % 256); 16716#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 16710#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 16708#L87-1 assume !(0 == mp_add_~i~0 % 256); 16706#L91-1 assume !(1 == mp_add_~i~0 % 256); 16694#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 16691#L93-1 assume !(3 == mp_add_~i~0 % 256); 16687#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 16683#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 16676#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 16677#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 16653#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 16644#L87-1 assume !(0 == mp_add_~i~0 % 256); 16894#L91-1 assume !(1 == mp_add_~i~0 % 256); 16891#L92-1 assume !(2 == mp_add_~i~0 % 256); 16889#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 16874#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 16828#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 16829#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 16869#L76 assume !(0 == mp_add_~i~0 % 256); 16872#L76-2 assume !(1 == mp_add_~i~0 % 256); 16871#L77-1 assume !(2 == mp_add_~i~0 % 256); 16870#L78-1 assume !(3 == mp_add_~i~0 % 256); 16868#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 16861#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 16860#L87-1 assume !(0 == mp_add_~i~0 % 256); 16859#L91-1 assume !(1 == mp_add_~i~0 % 256); 16858#L92-1 assume !(2 == mp_add_~i~0 % 256); 16850#L93-1 assume !(3 == mp_add_~i~0 % 256); 16689#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 16685#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 16680#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 16672#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 16673#L76-2 assume !(1 == mp_add_~i~0 % 256); 16851#L77-1 assume !(2 == mp_add_~i~0 % 256); 16846#L78-1 assume !(3 == mp_add_~i~0 % 256); 16847#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 16838#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 16839#L82-2 assume !(1 == mp_add_~i~0 % 256); 16826#L83-1 assume !(2 == mp_add_~i~0 % 256); 16827#L84-1 assume !(3 == mp_add_~i~0 % 256); 16801#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 16799#L87-1 [2021-10-15 20:18:03,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:18:03,035 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 14 times [2021-10-15 20:18:03,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:18:03,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400338373] [2021-10-15 20:18:03,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:18:03,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:18:03,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:18:03,049 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:18:03,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:18:03,063 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:18:03,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:18:03,064 INFO L82 PathProgramCache]: Analyzing trace with hash 733714482, now seen corresponding path program 2 times [2021-10-15 20:18:03,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:18:03,064 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037776810] [2021-10-15 20:18:03,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:18:03,064 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:18:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:18:03,158 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-15 20:18:03,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:18:03,159 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037776810] [2021-10-15 20:18:03,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037776810] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:18:03,159 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:18:03,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-15 20:18:03,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267195635] [2021-10-15 20:18:03,160 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 20:18:03,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:18:03,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-15 20:18:03,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-10-15 20:18:03,161 INFO L87 Difference]: Start difference. First operand 712 states and 834 transitions. cyclomatic complexity: 128 Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 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) [2021-10-15 20:18:03,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:18:03,674 INFO L93 Difference]: Finished difference Result 936 states and 1081 transitions. [2021-10-15 20:18:03,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-15 20:18:03,675 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 936 states and 1081 transitions. [2021-10-15 20:18:03,682 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 842 [2021-10-15 20:18:03,689 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 936 states to 918 states and 1062 transitions. [2021-10-15 20:18:03,689 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 918 [2021-10-15 20:18:03,690 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 918 [2021-10-15 20:18:03,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 918 states and 1062 transitions. [2021-10-15 20:18:03,692 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:18:03,692 INFO L681 BuchiCegarLoop]: Abstraction has 918 states and 1062 transitions. [2021-10-15 20:18:03,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states and 1062 transitions. [2021-10-15 20:18:03,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 829. [2021-10-15 20:18:03,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 829 states have (on average 1.1700844390832328) internal successors, (970), 828 states have internal predecessors, (970), 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) [2021-10-15 20:18:03,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 970 transitions. [2021-10-15 20:18:03,710 INFO L704 BuchiCegarLoop]: Abstraction has 829 states and 970 transitions. [2021-10-15 20:18:03,710 INFO L587 BuchiCegarLoop]: Abstraction has 829 states and 970 transitions. [2021-10-15 20:18:03,710 INFO L425 BuchiCegarLoop]: ======== Iteration 23============ [2021-10-15 20:18:03,710 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 829 states and 970 transitions. [2021-10-15 20:18:03,715 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 802 [2021-10-15 20:18:03,715 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:18:03,715 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:18:03,716 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:18:03,716 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:18:03,716 INFO L791 eck$LassoCheckResult]: Stem: 18266#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 18254#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 18244#L51 assume !(0 == mp_add_~a3~0 % 256); 18245#L51-1 mp_add_~nb~0 := 4; 18246#L61 assume !(0 == mp_add_~b3~0 % 256); 18247#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 18262#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 18593#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 18591#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 18588#L76-2 assume !(1 == mp_add_~i~0 % 256); 18554#L77-1 assume !(2 == mp_add_~i~0 % 256); 18555#L78-1 assume !(3 == mp_add_~i~0 % 256); 18542#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 18543#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 18516#L82-2 assume !(1 == mp_add_~i~0 % 256); 18517#L83-1 assume !(2 == mp_add_~i~0 % 256); 18503#L84-1 assume !(3 == mp_add_~i~0 % 256); 18504#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 18481#L87-1 [2021-10-15 20:18:03,717 INFO L793 eck$LassoCheckResult]: Loop: 18481#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 18479#L91-1 assume !(1 == mp_add_~i~0 % 256); 18477#L92-1 assume !(2 == mp_add_~i~0 % 256); 18475#L93-1 assume !(3 == mp_add_~i~0 % 256); 18473#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 18471#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 18467#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 18464#L76 assume !(0 == mp_add_~i~0 % 256); 18461#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 18459#L77-1 assume !(2 == mp_add_~i~0 % 256); 18455#L78-1 assume !(3 == mp_add_~i~0 % 256); 18448#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 18444#L82 assume !(0 == mp_add_~i~0 % 256); 18440#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 18437#L83-1 assume !(2 == mp_add_~i~0 % 256); 18434#L84-1 assume !(3 == mp_add_~i~0 % 256); 18431#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 18428#L87-1 assume !(0 == mp_add_~i~0 % 256); 18424#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 18421#L92-1 assume !(2 == mp_add_~i~0 % 256); 18417#L93-1 assume !(3 == mp_add_~i~0 % 256); 18414#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 18411#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 18407#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 18405#L76 assume !(0 == mp_add_~i~0 % 256); 18401#L76-2 assume !(1 == mp_add_~i~0 % 256); 18399#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 18396#L78-1 assume !(3 == mp_add_~i~0 % 256); 18392#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 18388#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 18386#L87-1 assume !(0 == mp_add_~i~0 % 256); 18383#L91-1 assume !(1 == mp_add_~i~0 % 256); 18375#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 18372#L93-1 assume !(3 == mp_add_~i~0 % 256); 18368#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 18364#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 18358#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 18353#L76 assume !(0 == mp_add_~i~0 % 256); 18348#L76-2 assume !(1 == mp_add_~i~0 % 256); 18343#L77-1 assume !(2 == mp_add_~i~0 % 256); 18338#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 18334#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 18329#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 18323#L87-1 assume !(0 == mp_add_~i~0 % 256); 18324#L91-1 assume !(1 == mp_add_~i~0 % 256); 18319#L92-1 assume !(2 == mp_add_~i~0 % 256); 18320#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 18315#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 18316#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 18309#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 18310#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 18599#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 18598#L87-1 assume !(0 == mp_add_~i~0 % 256); 18597#L91-1 assume !(1 == mp_add_~i~0 % 256); 18596#L92-1 assume !(2 == mp_add_~i~0 % 256); 18595#L93-1 assume !(3 == mp_add_~i~0 % 256); 18370#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 18366#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 18361#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 18355#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 18356#L76-2 assume !(1 == mp_add_~i~0 % 256); 18558#L77-1 assume !(2 == mp_add_~i~0 % 256); 18549#L78-1 assume !(3 == mp_add_~i~0 % 256); 18550#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 18535#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 18536#L82-2 assume !(1 == mp_add_~i~0 % 256); 18510#L83-1 assume !(2 == mp_add_~i~0 % 256); 18511#L84-1 assume !(3 == mp_add_~i~0 % 256); 18484#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 18481#L87-1 [2021-10-15 20:18:03,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:18:03,717 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 15 times [2021-10-15 20:18:03,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:18:03,717 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729704788] [2021-10-15 20:18:03,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:18:03,718 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:18:03,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:18:03,732 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:18:03,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:18:03,746 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:18:03,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:18:03,747 INFO L82 PathProgramCache]: Analyzing trace with hash -382324270, now seen corresponding path program 1 times [2021-10-15 20:18:03,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:18:03,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523119100] [2021-10-15 20:18:03,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:18:03,748 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:18:03,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:18:03,875 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 25 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:18:03,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:18:03,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523119100] [2021-10-15 20:18:03,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523119100] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 20:18:03,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726598809] [2021-10-15 20:18:03,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:18:03,875 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 20:18:03,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:18:03,877 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 20:18:03,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-15 20:18:04,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:18:04,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-15 20:18:04,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:18:17,345 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 74 proven. 9 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-10-15 20:18:17,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726598809] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 20:18:17,346 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 20:18:17,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2021-10-15 20:18:17,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137976950] [2021-10-15 20:18:17,347 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 20:18:17,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:18:17,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-15 20:18:17,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=70, Unknown=1, NotChecked=0, Total=90 [2021-10-15 20:18:17,348 INFO L87 Difference]: Start difference. First operand 829 states and 970 transitions. cyclomatic complexity: 148 Second operand has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 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) [2021-10-15 20:20:39,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:20:39,700 INFO L93 Difference]: Finished difference Result 1188 states and 1357 transitions. [2021-10-15 20:20:39,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-15 20:20:39,700 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1188 states and 1357 transitions. [2021-10-15 20:20:39,709 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 1147 [2021-10-15 20:20:39,717 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1188 states to 1174 states and 1333 transitions. [2021-10-15 20:20:39,718 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1174 [2021-10-15 20:20:39,719 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1174 [2021-10-15 20:20:39,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1174 states and 1333 transitions. [2021-10-15 20:20:39,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:20:39,721 INFO L681 BuchiCegarLoop]: Abstraction has 1174 states and 1333 transitions. [2021-10-15 20:20:39,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states and 1333 transitions. [2021-10-15 20:20:39,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 1001. [2021-10-15 20:20:39,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 1001 states have (on average 1.1468531468531469) internal successors, (1148), 1000 states have internal predecessors, (1148), 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) [2021-10-15 20:20:39,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1148 transitions. [2021-10-15 20:20:39,744 INFO L704 BuchiCegarLoop]: Abstraction has 1001 states and 1148 transitions. [2021-10-15 20:20:39,745 INFO L587 BuchiCegarLoop]: Abstraction has 1001 states and 1148 transitions. [2021-10-15 20:20:39,745 INFO L425 BuchiCegarLoop]: ======== Iteration 24============ [2021-10-15 20:20:39,745 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1001 states and 1148 transitions. [2021-10-15 20:20:39,750 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 974 [2021-10-15 20:20:39,751 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:20:39,751 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:20:39,752 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:20:39,752 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:20:39,752 INFO L791 eck$LassoCheckResult]: Stem: 20496#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 20487#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 20478#L51 assume !(0 == mp_add_~a3~0 % 256); 20479#L51-1 mp_add_~nb~0 := 4; 20480#L61 assume !(0 == mp_add_~b3~0 % 256); 20481#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 20494#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 20860#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 20857#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 20858#L76-2 assume !(1 == mp_add_~i~0 % 256); 20852#L77-1 assume !(2 == mp_add_~i~0 % 256); 20853#L78-1 assume !(3 == mp_add_~i~0 % 256); 20847#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 20845#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 20843#L82-2 assume !(1 == mp_add_~i~0 % 256); 20842#L83-1 assume !(2 == mp_add_~i~0 % 256); 20840#L84-1 assume !(3 == mp_add_~i~0 % 256); 20828#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 20826#L87-1 [2021-10-15 20:20:39,752 INFO L793 eck$LassoCheckResult]: Loop: 20826#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 20824#L91-1 assume !(1 == mp_add_~i~0 % 256); 20822#L92-1 assume !(2 == mp_add_~i~0 % 256); 20820#L93-1 assume !(3 == mp_add_~i~0 % 256); 20815#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 20816#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 20808#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 20809#L76 assume !(0 == mp_add_~i~0 % 256); 20798#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 20799#L77-1 assume !(2 == mp_add_~i~0 % 256); 20789#L78-1 assume !(3 == mp_add_~i~0 % 256); 20790#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 20814#L82 assume !(0 == mp_add_~i~0 % 256); 20811#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 20807#L83-1 assume !(2 == mp_add_~i~0 % 256); 20800#L84-1 assume !(3 == mp_add_~i~0 % 256); 20795#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 20791#L87-1 assume !(0 == mp_add_~i~0 % 256); 20787#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 20785#L92-1 assume !(2 == mp_add_~i~0 % 256); 20782#L93-1 assume !(3 == mp_add_~i~0 % 256); 20778#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 20776#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 20763#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 20760#L76 assume !(0 == mp_add_~i~0 % 256); 20757#L76-2 assume !(1 == mp_add_~i~0 % 256); 20751#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 20749#L78-1 assume !(3 == mp_add_~i~0 % 256); 20746#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 20744#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 20742#L87-1 assume !(0 == mp_add_~i~0 % 256); 20740#L91-1 assume !(1 == mp_add_~i~0 % 256); 20737#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 20734#L93-1 assume !(3 == mp_add_~i~0 % 256); 20733#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 20731#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 20729#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 20727#L76 assume !(0 == mp_add_~i~0 % 256); 20725#L76-2 assume !(1 == mp_add_~i~0 % 256); 20724#L77-1 assume !(2 == mp_add_~i~0 % 256); 20722#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 20644#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 20640#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 20638#L87-1 assume !(0 == mp_add_~i~0 % 256); 20636#L91-1 assume !(1 == mp_add_~i~0 % 256); 20634#L92-1 assume !(2 == mp_add_~i~0 % 256); 20632#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 20612#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 20608#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 20603#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 20587#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 20584#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 20582#L87-1 assume !(0 == mp_add_~i~0 % 256); 20580#L91-1 assume !(1 == mp_add_~i~0 % 256); 20578#L92-1 assume !(2 == mp_add_~i~0 % 256); 20576#L93-1 assume !(3 == mp_add_~i~0 % 256); 20574#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 20572#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 20569#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 20567#L76 assume !(0 == mp_add_~i~0 % 256); 20565#L76-2 assume !(1 == mp_add_~i~0 % 256); 20563#L77-1 assume !(2 == mp_add_~i~0 % 256); 20561#L78-1 assume !(3 == mp_add_~i~0 % 256); 20559#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 20552#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 20550#L87-1 assume !(0 == mp_add_~i~0 % 256); 20551#L91-1 assume !(1 == mp_add_~i~0 % 256); 20546#L92-1 assume !(2 == mp_add_~i~0 % 256); 20547#L93-1 assume !(3 == mp_add_~i~0 % 256); 20540#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 20541#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 20534#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 20533#L76 assume !(0 == mp_add_~i~0 % 256); 20531#L76-2 assume !(1 == mp_add_~i~0 % 256); 20532#L77-1 assume !(2 == mp_add_~i~0 % 256); 20771#L78-1 assume !(3 == mp_add_~i~0 % 256); 20768#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 20762#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 20759#L87-1 assume !(0 == mp_add_~i~0 % 256); 20756#L91-1 assume !(1 == mp_add_~i~0 % 256); 20755#L92-1 assume !(2 == mp_add_~i~0 % 256); 20754#L93-1 assume !(3 == mp_add_~i~0 % 256); 20542#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 20543#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 20689#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 20683#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 20684#L76-2 assume !(1 == mp_add_~i~0 % 256); 20855#L77-1 assume !(2 == mp_add_~i~0 % 256); 20849#L78-1 assume !(3 == mp_add_~i~0 % 256); 20850#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 20879#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 21474#L82-2 assume !(1 == mp_add_~i~0 % 256); 21473#L83-1 assume !(2 == mp_add_~i~0 % 256); 21472#L84-1 assume !(3 == mp_add_~i~0 % 256); 21471#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 20826#L87-1 [2021-10-15 20:20:39,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:20:39,753 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 16 times [2021-10-15 20:20:39,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:20:39,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111267806] [2021-10-15 20:20:39,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:20:39,754 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:20:39,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:20:39,768 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:20:39,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:20:39,783 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:20:39,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:20:39,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1186296946, now seen corresponding path program 2 times [2021-10-15 20:20:39,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:20:39,784 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358271653] [2021-10-15 20:20:39,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:20:39,784 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:20:39,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:20:40,096 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 192 proven. 9 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-10-15 20:20:40,096 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:20:40,096 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358271653] [2021-10-15 20:20:40,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358271653] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 20:20:40,096 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44743357] [2021-10-15 20:20:40,096 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-15 20:20:40,096 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 20:20:40,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:40,104 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 20:20:40,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-15 20:20:40,320 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-15 20:20:40,320 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-15 20:20:40,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-15 20:20:40,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:20:41,442 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 103 proven. 1 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2021-10-15 20:20:41,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [44743357] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 20:20:41,443 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 20:20:41,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2021-10-15 20:20:41,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138425481] [2021-10-15 20:20:41,443 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 20:20:41,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:20:41,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-15 20:20:41,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-10-15 20:20:41,444 INFO L87 Difference]: Start difference. First operand 1001 states and 1148 transitions. cyclomatic complexity: 154 Second operand has 15 states, 15 states have (on average 5.666666666666667) internal successors, (85), 15 states have internal predecessors, (85), 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) [2021-10-15 20:20:44,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:20:44,215 INFO L93 Difference]: Finished difference Result 755 states and 807 transitions. [2021-10-15 20:20:44,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-15 20:20:44,216 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 755 states and 807 transitions. [2021-10-15 20:20:44,225 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 112 [2021-10-15 20:20:44,232 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 755 states to 744 states and 791 transitions. [2021-10-15 20:20:44,232 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 744 [2021-10-15 20:20:44,233 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 744 [2021-10-15 20:20:44,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 744 states and 791 transitions. [2021-10-15 20:20:44,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:20:44,235 INFO L681 BuchiCegarLoop]: Abstraction has 744 states and 791 transitions. [2021-10-15 20:20:44,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states and 791 transitions. [2021-10-15 20:20:44,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 311. [2021-10-15 20:20:44,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 311 states have (on average 1.1028938906752412) internal successors, (343), 310 states have internal predecessors, (343), 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) [2021-10-15 20:20:44,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 343 transitions. [2021-10-15 20:20:44,244 INFO L704 BuchiCegarLoop]: Abstraction has 311 states and 343 transitions. [2021-10-15 20:20:44,245 INFO L587 BuchiCegarLoop]: Abstraction has 311 states and 343 transitions. [2021-10-15 20:20:44,245 INFO L425 BuchiCegarLoop]: ======== Iteration 25============ [2021-10-15 20:20:44,245 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 311 states and 343 transitions. [2021-10-15 20:20:44,246 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 60 [2021-10-15 20:20:44,246 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:20:44,246 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:20:44,247 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 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] [2021-10-15 20:20:44,247 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:20:44,248 INFO L791 eck$LassoCheckResult]: Stem: 22597#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 22591#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 22585#L51 assume !(0 == mp_add_~a3~0 % 256); 22586#L51-1 mp_add_~nb~0 := 4; 22587#L61 assume !(0 == mp_add_~b3~0 % 256); 22588#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 22596#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 22658#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 22657#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 22656#L76-2 assume !(1 == mp_add_~i~0 % 256); 22655#L77-1 assume !(2 == mp_add_~i~0 % 256); 22654#L78-1 assume !(3 == mp_add_~i~0 % 256); 22653#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 22652#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 22651#L82-2 assume !(1 == mp_add_~i~0 % 256); 22650#L83-1 assume !(2 == mp_add_~i~0 % 256); 22649#L84-1 assume !(3 == mp_add_~i~0 % 256); 22647#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 22648#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 22674#L91-1 assume !(1 == mp_add_~i~0 % 256); 22673#L92-1 assume !(2 == mp_add_~i~0 % 256); 22672#L93-1 assume !(3 == mp_add_~i~0 % 256); 22671#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 22670#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 22668#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 22669#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 22865#L82 assume !(0 == mp_add_~i~0 % 256); 22864#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 22863#L83-1 assume !(2 == mp_add_~i~0 % 256); 22862#L84-1 assume !(3 == mp_add_~i~0 % 256); 22860#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 22859#L87-1 assume !(0 == mp_add_~i~0 % 256); 22858#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 22857#L92-1 assume !(2 == mp_add_~i~0 % 256); 22856#L93-1 assume !(3 == mp_add_~i~0 % 256); 22855#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 22854#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 22853#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 22773#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 22851#L82 assume !(0 == mp_add_~i~0 % 256); 22850#L82-2 assume !(1 == mp_add_~i~0 % 256); 22849#L83-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b2~0 % 256; 22848#L84-1 assume !(3 == mp_add_~i~0 % 256); 22846#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 22845#L87-1 assume !(0 == mp_add_~i~0 % 256); 22844#L91-1 assume !(1 == mp_add_~i~0 % 256); 22843#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 22842#L93-1 assume !(3 == mp_add_~i~0 % 256); 22841#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 22840#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 22839#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 22718#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 22834#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 22831#L87-1 assume !(0 == mp_add_~i~0 % 256); 22830#L91-1 assume !(1 == mp_add_~i~0 % 256); 22829#L92-1 assume !(2 == mp_add_~i~0 % 256); 22828#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 22595#L94-1 [2021-10-15 20:20:44,248 INFO L793 eck$LassoCheckResult]: Loop: 22595#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 22592#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 22593#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 22608#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 22604#L82 assume !(0 == mp_add_~i~0 % 256); 22605#L82-2 assume !(1 == mp_add_~i~0 % 256); 22607#L83-1 assume !(2 == mp_add_~i~0 % 256); 22606#L84-1 assume !(3 == mp_add_~i~0 % 256); 22601#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 22594#L87-1 assume !(0 == mp_add_~i~0 % 256); 22582#L91-1 assume !(1 == mp_add_~i~0 % 256); 22583#L92-1 assume !(2 == mp_add_~i~0 % 256); 22584#L93-1 assume !(3 == mp_add_~i~0 % 256); 22595#L94-1 [2021-10-15 20:20:44,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:20:44,248 INFO L82 PathProgramCache]: Analyzing trace with hash -529922365, now seen corresponding path program 1 times [2021-10-15 20:20:44,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:20:44,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146829021] [2021-10-15 20:20:44,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:20:44,249 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:20:44,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:20:44,413 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 38 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-10-15 20:20:44,414 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:20:44,414 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146829021] [2021-10-15 20:20:44,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146829021] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 20:20:44,414 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377450915] [2021-10-15 20:20:44,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:20:44,414 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 20:20:44,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:44,426 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 20:20:44,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-15 20:20:44,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:20:44,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-15 20:20:44,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:20:45,006 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-10-15 20:20:45,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1377450915] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 20:20:45,006 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 20:20:45,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2021-10-15 20:20:45,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146886925] [2021-10-15 20:20:45,007 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-15 20:20:45,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:20:45,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 1 times [2021-10-15 20:20:45,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:20:45,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483440191] [2021-10-15 20:20:45,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:20:45,008 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:20:45,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:20:45,015 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:20:45,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:20:45,019 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:20:45,320 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 20:20:45,321 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 20:20:45,321 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 20:20:45,321 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 20:20:45,322 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-15 20:20:45,322 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:45,322 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 20:20:45,322 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 20:20:45,322 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration25_Loop [2021-10-15 20:20:45,322 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 20:20:45,323 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 20:20:45,338 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:20:45,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:20:45,722 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 20:20:45,722 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-15 20:20:45,724 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:45,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:45,727 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:45,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-15 20:20:45,729 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 20:20:45,729 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:20:45,749 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-15 20:20:45,749 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_mp_add_~partial_sum~0=0, ULTIMATE.start_mp_add_~carry~0=0} Honda state: {ULTIMATE.start_mp_add_~partial_sum~0=0, ULTIMATE.start_mp_add_~carry~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-15 20:20:45,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-15 20:20:45,774 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:45,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:45,774 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:45,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-15 20:20:45,785 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 20:20:45,785 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:20:45,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-15 20:20:45,908 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:45,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:45,910 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:45,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-15 20:20:45,919 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-15 20:20:45,921 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:20:46,506 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-15 20:20:46,510 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-10-15 20:20:46,510 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 20:20:46,510 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 20:20:46,510 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 20:20:46,510 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 20:20:46,510 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 20:20:46,510 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:46,511 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 20:20:46,511 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 20:20:46,511 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration25_Loop [2021-10-15 20:20:46,511 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 20:20:46,511 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 20:20:46,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:20:46,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:20:46,940 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 20:20:46,945 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 20:20:46,946 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:46,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:46,947 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:46,949 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 [2021-10-15 20:20:46,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-15 20:20:46,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:20:46,960 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:20:46,960 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:20:46,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:20:46,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:20:46,964 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:20:46,964 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:20:46,975 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:20:47,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-15 20:20:47,021 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:47,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:47,023 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:47,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-15 20:20:47,028 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 [2021-10-15 20:20:47,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:20:47,038 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:20:47,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:20:47,039 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:20:47,039 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:20:47,042 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:20:47,042 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:20:47,079 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:20:47,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-15 20:20:47,108 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-15 20:20:47,109 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:47,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:47,109 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:47,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-15 20:20:47,111 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 [2021-10-15 20:20:47,124 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:20:47,124 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:20:47,124 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:20:47,125 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:20:47,125 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-15 20:20:47,128 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-15 20:20:47,128 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:20:47,131 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:20:47,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-15 20:20:47,160 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:47,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:47,161 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:47,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-15 20:20:47,164 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 [2021-10-15 20:20:47,174 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:20:47,174 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:20:47,175 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:20:47,175 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:20:47,175 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-15 20:20:47,187 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-15 20:20:47,188 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:20:47,193 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:20:47,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-15 20:20:47,213 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-15 20:20:47,213 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:47,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:47,214 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:47,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-15 20:20:47,219 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 [2021-10-15 20:20:47,226 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:20:47,226 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:20:47,227 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:20:47,227 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:20:47,227 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:20:47,229 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:20:47,229 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:20:47,233 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:20:47,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-10-15 20:20:47,256 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:47,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:47,257 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:47,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-15 20:20:47,258 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 [2021-10-15 20:20:47,265 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:20:47,265 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:20:47,266 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:20:47,266 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:20:47,266 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:20:47,271 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:20:47,272 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:20:47,299 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:20:47,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-15 20:20:47,336 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-15 20:20:47,336 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:47,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:47,337 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:47,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-15 20:20:47,339 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 [2021-10-15 20:20:47,347 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:20:47,347 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:20:47,347 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:20:47,347 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:20:47,347 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-15 20:20:47,350 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-15 20:20:47,350 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:20:47,353 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:20:47,373 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-10-15 20:20:47,373 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:47,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:47,374 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:47,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-15 20:20:47,375 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 [2021-10-15 20:20:47,383 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:20:47,383 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:20:47,383 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:20:47,383 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:20:47,384 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-15 20:20:47,390 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-15 20:20:47,390 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:20:47,423 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:20:47,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-15 20:20:47,455 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-15 20:20:47,456 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:47,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:47,463 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:47,470 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 [2021-10-15 20:20:47,479 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:20:47,480 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-15 20:20:47,480 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:20:47,480 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:20:47,480 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:20:47,480 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-15 20:20:47,483 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-15 20:20:47,483 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:20:47,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-15 20:20:47,495 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:20:47,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-15 20:20:47,532 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:47,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:47,533 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:47,539 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 [2021-10-15 20:20:47,548 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:20:47,548 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-15 20:20:47,549 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:20:47,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:20:47,549 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:20:47,549 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-15 20:20:47,554 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-15 20:20:47,555 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:20:47,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-15 20:20:47,587 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:20:47,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-15 20:20:47,624 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-15 20:20:47,624 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:47,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:47,625 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:47,631 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 [2021-10-15 20:20:47,641 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:20:47,641 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-15 20:20:47,641 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:20:47,642 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:20:47,642 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:20:47,642 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:20:47,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-15 20:20:47,646 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:20:47,646 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:20:47,663 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:20:47,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-15 20:20:47,700 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:47,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:47,701 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:47,712 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 [2021-10-15 20:20:47,722 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:20:47,722 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-15 20:20:47,722 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:20:47,722 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:20:47,722 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:20:47,722 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:20:47,731 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:20:47,732 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:20:47,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-15 20:20:47,751 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:20:47,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-15 20:20:47,788 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-15 20:20:47,788 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:47,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:47,789 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:47,791 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:20:47,801 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:20:47,801 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-15 20:20:47,801 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:20:47,801 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:20:47,801 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:20:47,801 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-15 20:20:47,808 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-15 20:20:47,808 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:20:47,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-15 20:20:47,827 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:20:47,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-15 20:20:47,863 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:47,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:47,864 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:47,866 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 [2021-10-15 20:20:47,876 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:20:47,876 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-15 20:20:47,876 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:20:47,877 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:20:47,877 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:20:47,877 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-15 20:20:47,887 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-15 20:20:47,887 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:20:47,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-15 20:20:47,911 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:20:47,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-15 20:20:47,949 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-15 20:20:47,949 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:47,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:47,950 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:47,952 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 [2021-10-15 20:20:47,961 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:20:47,961 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-15 20:20:47,961 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:20:47,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:20:47,962 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:20:47,962 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:20:47,965 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:20:47,965 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:20:47,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-15 20:20:47,979 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:20:48,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-15 20:20:48,016 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:48,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:48,017 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:48,019 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 [2021-10-15 20:20:48,028 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:20:48,028 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-15 20:20:48,028 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:20:48,029 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:20:48,029 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:20:48,029 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:20:48,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-15 20:20:48,034 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:20:48,034 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:20:48,051 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:20:48,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-15 20:20:48,089 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-15 20:20:48,089 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:48,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:48,090 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:48,093 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 [2021-10-15 20:20:48,103 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:20:48,103 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-15 20:20:48,103 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:20:48,103 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:20:48,103 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:20:48,104 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-15 20:20:48,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-15 20:20:48,108 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:20:48,108 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:20:48,127 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:20:48,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-15 20:20:48,166 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:48,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:48,167 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:48,169 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 [2021-10-15 20:20:48,179 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:20:48,179 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-15 20:20:48,179 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:20:48,179 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:20:48,179 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:20:48,179 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-15 20:20:48,189 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:20:48,189 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:20:48,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-15 20:20:48,211 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:20:48,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-15 20:20:48,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:20:48,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-15 20:20:48,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-15 20:20:48,248 INFO L87 Difference]: Start difference. First operand 311 states and 343 transitions. cyclomatic complexity: 36 Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 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) [2021-10-15 20:20:48,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:20:48,953 INFO L93 Difference]: Finished difference Result 445 states and 473 transitions. [2021-10-15 20:20:48,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-15 20:20:48,954 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 445 states and 473 transitions. [2021-10-15 20:20:48,957 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 94 [2021-10-15 20:20:48,960 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 445 states to 390 states and 417 transitions. [2021-10-15 20:20:48,960 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 390 [2021-10-15 20:20:48,961 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 390 [2021-10-15 20:20:48,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 390 states and 417 transitions. [2021-10-15 20:20:48,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:20:48,962 INFO L681 BuchiCegarLoop]: Abstraction has 390 states and 417 transitions. [2021-10-15 20:20:48,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states and 417 transitions. [2021-10-15 20:20:48,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 327. [2021-10-15 20:20:48,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 327 states have (on average 1.0825688073394495) internal successors, (354), 326 states have internal predecessors, (354), 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) [2021-10-15 20:20:48,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 354 transitions. [2021-10-15 20:20:48,970 INFO L704 BuchiCegarLoop]: Abstraction has 327 states and 354 transitions. [2021-10-15 20:20:48,970 INFO L587 BuchiCegarLoop]: Abstraction has 327 states and 354 transitions. [2021-10-15 20:20:48,970 INFO L425 BuchiCegarLoop]: ======== Iteration 26============ [2021-10-15 20:20:48,970 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 327 states and 354 transitions. [2021-10-15 20:20:48,972 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 77 [2021-10-15 20:20:48,972 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:20:48,972 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:20:48,973 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 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, 1, 1, 1] [2021-10-15 20:20:48,973 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:20:48,973 INFO L791 eck$LassoCheckResult]: Stem: 23544#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 23535#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 23525#L51 assume !(0 == mp_add_~a3~0 % 256); 23526#L51-1 mp_add_~nb~0 := 4; 23527#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 23529#L63 assume !(0 == mp_add_~b2~0 % 256); 23530#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 23541#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 23624#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 23625#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 23620#L76-2 assume !(1 == mp_add_~i~0 % 256); 23621#L77-1 assume !(2 == mp_add_~i~0 % 256); 23616#L78-1 assume !(3 == mp_add_~i~0 % 256); 23617#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 23612#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 23613#L82-2 assume !(1 == mp_add_~i~0 % 256); 23608#L83-1 assume !(2 == mp_add_~i~0 % 256); 23609#L84-1 assume !(3 == mp_add_~i~0 % 256); 23604#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 23605#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 23851#L91-1 assume !(1 == mp_add_~i~0 % 256); 23850#L92-1 assume !(2 == mp_add_~i~0 % 256); 23849#L93-1 assume !(3 == mp_add_~i~0 % 256); 23848#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 23847#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 23846#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 23845#L76 assume !(0 == mp_add_~i~0 % 256); 23844#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 23843#L77-1 assume !(2 == mp_add_~i~0 % 256); 23842#L78-1 assume !(3 == mp_add_~i~0 % 256); 23840#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 23839#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 23838#L87-1 assume !(0 == mp_add_~i~0 % 256); 23836#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 23835#L92-1 assume !(2 == mp_add_~i~0 % 256); 23834#L93-1 assume !(3 == mp_add_~i~0 % 256); 23832#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 23831#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 23555#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 23556#L76 assume !(0 == mp_add_~i~0 % 256); 23560#L76-2 assume !(1 == mp_add_~i~0 % 256); 23825#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 23824#L78-1 assume !(3 == mp_add_~i~0 % 256); 23822#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 23820#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 23818#L87-1 assume !(0 == mp_add_~i~0 % 256); 23816#L91-1 assume !(1 == mp_add_~i~0 % 256); 23814#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 23812#L93-1 assume !(3 == mp_add_~i~0 % 256); 23810#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 23808#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 23806#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 23804#L76 assume !(0 == mp_add_~i~0 % 256); 23802#L76-2 assume !(1 == mp_add_~i~0 % 256); 23800#L77-1 assume !(2 == mp_add_~i~0 % 256); 23798#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 23796#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 23794#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 23793#L87-1 assume !(0 == mp_add_~i~0 % 256); 23792#L91-1 assume !(1 == mp_add_~i~0 % 256); 23791#L92-1 assume !(2 == mp_add_~i~0 % 256); 23790#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 23540#L94-1 [2021-10-15 20:20:48,973 INFO L793 eck$LassoCheckResult]: Loop: 23540#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 23536#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 23537#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 23828#L76 assume !(0 == mp_add_~i~0 % 256); 23827#L76-2 assume !(1 == mp_add_~i~0 % 256); 23826#L77-1 assume !(2 == mp_add_~i~0 % 256); 23549#L78-1 assume !(3 == mp_add_~i~0 % 256); 23550#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 23559#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 23841#L87-1 assume !(0 == mp_add_~i~0 % 256); 23532#L91-1 assume !(1 == mp_add_~i~0 % 256); 23533#L92-1 assume !(2 == mp_add_~i~0 % 256); 23534#L93-1 assume !(3 == mp_add_~i~0 % 256); 23540#L94-1 [2021-10-15 20:20:48,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:20:48,974 INFO L82 PathProgramCache]: Analyzing trace with hash -267040966, now seen corresponding path program 1 times [2021-10-15 20:20:48,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:20:48,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085052727] [2021-10-15 20:20:48,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:20:48,975 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:20:48,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:20:49,219 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 45 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-10-15 20:20:49,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:20:49,220 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085052727] [2021-10-15 20:20:49,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085052727] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 20:20:49,220 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1926697636] [2021-10-15 20:20:49,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:20:49,220 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 20:20:49,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:49,223 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 20:20:49,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-10-15 20:20:49,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:20:49,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 29 conjunts are in the unsatisfiable core [2021-10-15 20:20:49,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:20:50,301 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 50 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-15 20:20:50,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1926697636] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 20:20:50,302 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 20:20:50,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2021-10-15 20:20:50,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735983509] [2021-10-15 20:20:50,302 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-15 20:20:50,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:20:50,302 INFO L82 PathProgramCache]: Analyzing trace with hash 672830572, now seen corresponding path program 1 times [2021-10-15 20:20:50,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:20:50,303 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266761567] [2021-10-15 20:20:50,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:20:50,303 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:20:50,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:20:50,309 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:20:50,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:20:50,314 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:20:50,567 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 20:20:50,567 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 20:20:50,567 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 20:20:50,567 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 20:20:50,569 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-15 20:20:50,569 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:50,569 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 20:20:50,569 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 20:20:50,569 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration26_Loop [2021-10-15 20:20:50,569 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 20:20:50,569 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 20:20:50,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:20:50,584 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:20:50,996 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 20:20:50,996 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-15 20:20:50,996 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:50,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:51,001 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:51,002 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 20:20:51,002 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:20:51,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-15 20:20:51,018 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-15 20:20:51,018 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_mp_add_~partial_sum~0=0, ULTIMATE.start_mp_add_~carry~0=0} Honda state: {ULTIMATE.start_mp_add_~partial_sum~0=0, ULTIMATE.start_mp_add_~carry~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-15 20:20:51,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-15 20:20:51,046 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:51,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:51,047 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:51,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-15 20:20:51,049 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 20:20:51,049 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:20:51,097 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-10-15 20:20:51,098 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:51,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:51,098 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:51,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-15 20:20:51,100 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-15 20:20:51,100 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:20:53,058 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-15 20:20:53,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-15 20:20:53,062 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 20:20:53,062 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 20:20:53,062 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 20:20:53,062 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 20:20:53,062 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 20:20:53,062 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:53,062 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 20:20:53,062 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 20:20:53,062 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration26_Loop [2021-10-15 20:20:53,062 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 20:20:53,062 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 20:20:53,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:20:53,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:20:53,472 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 20:20:53,472 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 20:20:53,473 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:53,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:53,483 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:53,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-15 20:20:53,485 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 [2021-10-15 20:20:53,493 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:20:53,493 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:20:53,493 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:20:53,493 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:20:53,493 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:20:53,494 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:20:53,494 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:20:53,497 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:20:53,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-15 20:20:53,518 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:53,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:53,518 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:53,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-15 20:20:53,520 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 [2021-10-15 20:20:53,527 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:20:53,528 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:20:53,528 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:20:53,528 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:20:53,528 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:20:53,530 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:20:53,530 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:20:53,533 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:20:53,589 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-10-15 20:20:53,589 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-15 20:20:53,589 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:53,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:53,591 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:53,593 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 [2021-10-15 20:20:53,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-15 20:20:53,600 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:20:53,601 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:20:53,601 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:20:53,601 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:20:53,601 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-15 20:20:53,602 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-15 20:20:53,602 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:20:53,605 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:20:53,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-15 20:20:53,630 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:53,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:53,631 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:53,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-15 20:20:53,632 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 [2021-10-15 20:20:53,639 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:20:53,640 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:20:53,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:20:53,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:20:53,640 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-15 20:20:53,643 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-15 20:20:53,643 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:20:53,647 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:20:53,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-10-15 20:20:53,667 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-15 20:20:53,667 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:53,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:53,668 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:53,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-15 20:20:53,672 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 [2021-10-15 20:20:53,679 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:20:53,679 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:20:53,680 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:20:53,680 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:20:53,680 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:20:53,682 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:20:53,682 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:20:53,707 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:20:53,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-15 20:20:53,741 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:53,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:53,743 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:53,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-15 20:20:53,747 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 [2021-10-15 20:20:53,755 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:20:53,755 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:20:53,755 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:20:53,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:20:53,756 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:20:53,760 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:20:53,760 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:20:53,765 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:20:53,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2021-10-15 20:20:53,787 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-15 20:20:53,787 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:53,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:53,788 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:53,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-15 20:20:53,790 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 [2021-10-15 20:20:53,798 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:20:53,798 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:20:53,798 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:20:53,798 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:20:53,798 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-15 20:20:53,801 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-15 20:20:53,801 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:20:53,823 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:20:53,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-10-15 20:20:53,844 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:53,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:53,845 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:53,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-15 20:20:53,846 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:20:53,860 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:20:53,860 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:20:53,860 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:20:53,860 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:20:53,860 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-15 20:20:53,867 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-15 20:20:53,868 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:20:53,884 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:20:53,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-10-15 20:20:53,904 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-15 20:20:53,905 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:53,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:53,905 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:53,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-15 20:20:53,907 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 [2021-10-15 20:20:53,915 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:20:53,915 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-15 20:20:53,915 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:20:53,915 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:20:53,915 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:20:53,915 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-15 20:20:53,917 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-15 20:20:53,917 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:20:53,921 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:20:53,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-10-15 20:20:53,942 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:53,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:53,942 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:53,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-15 20:20:53,944 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 [2021-10-15 20:20:53,952 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:20:53,952 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-15 20:20:53,952 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:20:53,952 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:20:53,952 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:20:53,952 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-15 20:20:53,955 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-15 20:20:53,955 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:20:53,962 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:20:53,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-10-15 20:20:53,983 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-15 20:20:53,983 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:53,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:53,984 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:53,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-15 20:20:53,988 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 [2021-10-15 20:20:53,995 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:20:53,995 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-15 20:20:53,995 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:20:53,996 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:20:53,996 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:20:53,996 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:20:53,999 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:20:53,999 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:20:54,011 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:20:54,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-10-15 20:20:54,034 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:54,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:54,035 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:54,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-15 20:20:54,036 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 [2021-10-15 20:20:54,044 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:20:54,044 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-15 20:20:54,044 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:20:54,044 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:20:54,044 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:20:54,044 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:20:54,049 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:20:54,049 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:20:54,059 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:20:54,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-10-15 20:20:54,083 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-15 20:20:54,084 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:54,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:54,084 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:54,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-15 20:20:54,086 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 [2021-10-15 20:20:54,093 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:20:54,094 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-15 20:20:54,094 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:20:54,094 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:20:54,094 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:20:54,094 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-15 20:20:54,097 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-15 20:20:54,097 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:20:54,108 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:20:54,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-10-15 20:20:54,132 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:54,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:54,132 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:54,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-15 20:20:54,134 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 [2021-10-15 20:20:54,142 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:20:54,142 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-15 20:20:54,142 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:20:54,142 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:20:54,142 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:20:54,142 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-15 20:20:54,149 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-15 20:20:54,150 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:20:54,172 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:20:54,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-10-15 20:20:54,206 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-15 20:20:54,206 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:54,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:54,212 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:54,216 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 [2021-10-15 20:20:54,225 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:20:54,225 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-15 20:20:54,225 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:20:54,225 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:20:54,226 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:20:54,226 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:20:54,228 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:20:54,228 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:20:54,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-15 20:20:54,243 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:20:54,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-10-15 20:20:54,276 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:54,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:54,280 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:54,282 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 [2021-10-15 20:20:54,291 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:20:54,291 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-15 20:20:54,291 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:20:54,291 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:20:54,291 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:20:54,292 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:20:54,298 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:20:54,298 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:20:54,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-15 20:20:54,311 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:20:54,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-10-15 20:20:54,353 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-15 20:20:54,353 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:54,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:54,354 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:54,356 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 [2021-10-15 20:20:54,366 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:20:54,366 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-15 20:20:54,366 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:20:54,366 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:20:54,366 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:20:54,366 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-15 20:20:54,370 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:20:54,370 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:20:54,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-15 20:20:54,387 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:20:54,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-10-15 20:20:54,419 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:54,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:54,420 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:54,423 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 [2021-10-15 20:20:54,432 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:20:54,433 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-15 20:20:54,433 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:20:54,433 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:20:54,433 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:20:54,433 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-15 20:20:54,442 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:20:54,442 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:20:54,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-15 20:20:54,462 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:20:54,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-10-15 20:20:54,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:20:54,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-15 20:20:54,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-10-15 20:20:54,495 INFO L87 Difference]: Start difference. First operand 327 states and 354 transitions. cyclomatic complexity: 32 Second operand has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 11 states have internal predecessors, (81), 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) [2021-10-15 20:20:56,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:20:56,886 INFO L93 Difference]: Finished difference Result 587 states and 628 transitions. [2021-10-15 20:20:56,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-15 20:20:56,887 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 587 states and 628 transitions. [2021-10-15 20:20:56,889 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 124 [2021-10-15 20:20:56,893 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 587 states to 587 states and 628 transitions. [2021-10-15 20:20:56,893 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 587 [2021-10-15 20:20:56,893 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 587 [2021-10-15 20:20:56,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 587 states and 628 transitions. [2021-10-15 20:20:56,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:20:56,895 INFO L681 BuchiCegarLoop]: Abstraction has 587 states and 628 transitions. [2021-10-15 20:20:56,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states and 628 transitions. [2021-10-15 20:20:56,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 313. [2021-10-15 20:20:56,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 313 states have (on average 1.0766773162939298) internal successors, (337), 312 states have internal predecessors, (337), 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) [2021-10-15 20:20:56,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 337 transitions. [2021-10-15 20:20:56,904 INFO L704 BuchiCegarLoop]: Abstraction has 313 states and 337 transitions. [2021-10-15 20:20:56,904 INFO L587 BuchiCegarLoop]: Abstraction has 313 states and 337 transitions. [2021-10-15 20:20:56,904 INFO L425 BuchiCegarLoop]: ======== Iteration 27============ [2021-10-15 20:20:56,904 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 313 states and 337 transitions. [2021-10-15 20:20:56,905 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 77 [2021-10-15 20:20:56,906 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:20:56,906 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:20:56,906 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] [2021-10-15 20:20:56,906 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:20:56,907 INFO L791 eck$LassoCheckResult]: Stem: 24692#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 24686#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 24677#L51 assume !(0 == mp_add_~a3~0 % 256); 24678#L51-1 mp_add_~nb~0 := 4; 24679#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 24681#L63 assume 0 == mp_add_~b2~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 24683#L65 assume 0 == mp_add_~b1~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 24707#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 24824#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 24823#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 24822#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 24821#L76-2 assume !(1 == mp_add_~i~0 % 256); 24820#L77-1 assume !(2 == mp_add_~i~0 % 256); 24819#L78-1 assume !(3 == mp_add_~i~0 % 256); 24818#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 24817#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 24816#L82-2 assume !(1 == mp_add_~i~0 % 256); 24815#L83-1 assume !(2 == mp_add_~i~0 % 256); 24814#L84-1 assume !(3 == mp_add_~i~0 % 256); 24813#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 24812#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 24811#L91-1 assume !(1 == mp_add_~i~0 % 256); 24810#L92-1 assume !(2 == mp_add_~i~0 % 256); 24809#L93-1 assume !(3 == mp_add_~i~0 % 256); 24808#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 24807#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 24806#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 24805#L76 assume !(0 == mp_add_~i~0 % 256); 24804#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 24803#L77-1 assume !(2 == mp_add_~i~0 % 256); 24802#L78-1 assume !(3 == mp_add_~i~0 % 256); 24801#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 24800#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 24799#L87-1 assume !(0 == mp_add_~i~0 % 256); 24798#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 24797#L92-1 assume !(2 == mp_add_~i~0 % 256); 24796#L93-1 assume !(3 == mp_add_~i~0 % 256); 24795#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 24794#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 24793#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 24792#L76 assume !(0 == mp_add_~i~0 % 256); 24791#L76-2 assume !(1 == mp_add_~i~0 % 256); 24789#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 24790#L78-1 assume !(3 == mp_add_~i~0 % 256); 24839#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 24838#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 24837#L87-1 assume !(0 == mp_add_~i~0 % 256); 24836#L91-1 assume !(1 == mp_add_~i~0 % 256); 24835#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 24834#L93-1 assume !(3 == mp_add_~i~0 % 256); 24833#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 24832#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 24831#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 24830#L76 assume !(0 == mp_add_~i~0 % 256); 24829#L76-2 assume !(1 == mp_add_~i~0 % 256); 24828#L77-1 assume !(2 == mp_add_~i~0 % 256); 24825#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 24826#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 24854#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 24852#L87-1 assume !(0 == mp_add_~i~0 % 256); 24850#L91-1 assume !(1 == mp_add_~i~0 % 256); 24848#L92-1 assume !(2 == mp_add_~i~0 % 256); 24846#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 24845#L94-1 [2021-10-15 20:20:56,907 INFO L793 eck$LassoCheckResult]: Loop: 24845#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 24844#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 24843#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 24842#L76 assume !(0 == mp_add_~i~0 % 256); 24841#L76-2 assume !(1 == mp_add_~i~0 % 256); 24840#L77-1 assume !(2 == mp_add_~i~0 % 256); 24827#L78-1 assume !(3 == mp_add_~i~0 % 256); 24704#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 24705#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 24853#L87-1 assume !(0 == mp_add_~i~0 % 256); 24851#L91-1 assume !(1 == mp_add_~i~0 % 256); 24849#L92-1 assume !(2 == mp_add_~i~0 % 256); 24847#L93-1 assume !(3 == mp_add_~i~0 % 256); 24845#L94-1 [2021-10-15 20:20:56,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:20:56,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1728940926, now seen corresponding path program 1 times [2021-10-15 20:20:56,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:20:56,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4479579] [2021-10-15 20:20:56,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:20:56,908 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:20:56,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:20:56,935 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:20:56,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:20:56,972 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:20:56,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:20:56,973 INFO L82 PathProgramCache]: Analyzing trace with hash 672830572, now seen corresponding path program 2 times [2021-10-15 20:20:56,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:20:56,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561930248] [2021-10-15 20:20:56,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:20:56,974 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:20:56,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:20:56,980 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:20:56,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:20:56,984 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:20:56,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:20:56,984 INFO L82 PathProgramCache]: Analyzing trace with hash 334650383, now seen corresponding path program 2 times [2021-10-15 20:20:56,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:20:56,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244366680] [2021-10-15 20:20:56,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:20:56,985 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:20:57,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:20:57,339 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 40 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:20:57,339 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:20:57,339 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244366680] [2021-10-15 20:20:57,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244366680] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 20:20:57,339 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553611366] [2021-10-15 20:20:57,340 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-15 20:20:57,340 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 20:20:57,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:57,341 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 20:20:57,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2021-10-15 20:20:57,715 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-15 20:20:57,715 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-15 20:20:57,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-15 20:20:57,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:20:58,977 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 24 proven. 16 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-10-15 20:20:58,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553611366] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 20:20:58,977 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 20:20:58,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 13 [2021-10-15 20:20:58,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914458946] [2021-10-15 20:20:59,306 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 20:20:59,307 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 20:20:59,307 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 20:20:59,307 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 20:20:59,307 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-15 20:20:59,307 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:59,307 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 20:20:59,307 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 20:20:59,307 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration27_Loop [2021-10-15 20:20:59,307 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 20:20:59,307 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 20:20:59,308 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:20:59,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:20:59,872 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 20:20:59,872 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-15 20:20:59,872 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:59,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:59,874 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:59,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-15 20:20:59,875 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 20:20:59,876 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:20:59,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2021-10-15 20:20:59,931 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:20:59,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:20:59,933 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:20:59,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-15 20:20:59,935 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-15 20:20:59,935 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:21:00,724 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-15 20:21:00,728 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2021-10-15 20:21:00,728 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 20:21:00,728 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 20:21:00,728 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 20:21:00,728 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 20:21:00,728 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 20:21:00,728 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:00,728 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 20:21:00,728 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 20:21:00,728 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration27_Loop [2021-10-15 20:21:00,728 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 20:21:00,728 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 20:21:00,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:21:00,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:21:01,130 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 20:21:01,131 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 20:21:01,131 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:01,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:01,132 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:01,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-15 20:21:01,133 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 [2021-10-15 20:21:01,141 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:01,142 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:01,142 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:01,142 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:01,142 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:21:01,145 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:21:01,145 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:01,149 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:01,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:01,170 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:01,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:01,170 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:01,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-15 20:21:01,172 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 [2021-10-15 20:21:01,179 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:01,179 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:01,179 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:01,179 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:01,179 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:21:01,180 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:21:01,180 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:01,183 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:01,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:01,203 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-15 20:21:01,204 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:01,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:01,204 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:01,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-10-15 20:21:01,205 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 [2021-10-15 20:21:01,213 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:01,213 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:01,213 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:01,213 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:01,213 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-15 20:21:01,216 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-15 20:21:01,216 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:01,220 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:01,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:01,240 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:01,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:01,241 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:01,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-10-15 20:21:01,245 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 [2021-10-15 20:21:01,252 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:01,252 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:01,252 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:01,252 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:01,252 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-15 20:21:01,254 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-15 20:21:01,254 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:01,256 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:01,276 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2021-10-15 20:21:01,276 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-15 20:21:01,276 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:01,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:01,277 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:01,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-10-15 20:21:01,290 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 [2021-10-15 20:21:01,299 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:01,299 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:01,299 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:01,299 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:01,299 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:21:01,303 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:21:01,303 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:01,308 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:01,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:01,328 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:01,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:01,328 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:01,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-10-15 20:21:01,330 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 [2021-10-15 20:21:01,337 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:01,337 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:01,337 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:01,337 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:01,337 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:21:01,339 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:21:01,339 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:01,342 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:01,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2021-10-15 20:21:01,362 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-15 20:21:01,362 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:01,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:01,363 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:01,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-10-15 20:21:01,364 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 [2021-10-15 20:21:01,372 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:01,372 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:01,372 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:01,372 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:01,372 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-15 20:21:01,377 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-15 20:21:01,377 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:01,383 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:01,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:01,404 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:01,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:01,405 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:01,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-10-15 20:21:01,406 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 [2021-10-15 20:21:01,413 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:01,414 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:01,414 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:01,414 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:01,414 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-15 20:21:01,416 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-15 20:21:01,416 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:01,420 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:01,439 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2021-10-15 20:21:01,440 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-15 20:21:01,440 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:01,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:01,440 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:01,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-10-15 20:21:01,442 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:21:01,449 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:01,449 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-15 20:21:01,449 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:01,449 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:01,449 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:01,449 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-15 20:21:01,453 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-15 20:21:01,453 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:01,487 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:01,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:01,519 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:01,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:01,520 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:01,522 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 [2021-10-15 20:21:01,531 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:01,532 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-15 20:21:01,532 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:01,532 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:01,532 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:01,532 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-15 20:21:01,534 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-15 20:21:01,534 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:01,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-10-15 20:21:01,547 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:01,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2021-10-15 20:21:01,577 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-15 20:21:01,577 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:01,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:01,578 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:01,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-10-15 20:21:01,580 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 [2021-10-15 20:21:01,587 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:01,587 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-15 20:21:01,587 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:01,588 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:01,588 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:01,588 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:21:01,592 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:21:01,592 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:01,602 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:01,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:01,623 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:01,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:01,624 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:01,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-10-15 20:21:01,627 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 [2021-10-15 20:21:01,635 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:01,635 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-15 20:21:01,635 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:01,635 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:01,635 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:01,635 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:21:01,638 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:21:01,638 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:01,675 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:01,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:01,707 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-15 20:21:01,708 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:01,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:01,711 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:01,724 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 [2021-10-15 20:21:01,734 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:01,734 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-15 20:21:01,734 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:01,735 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:01,735 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:01,735 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-15 20:21:01,742 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-15 20:21:01,742 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:01,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-10-15 20:21:01,771 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:01,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:01,804 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:01,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:01,807 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:01,809 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 [2021-10-15 20:21:01,819 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:01,819 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-15 20:21:01,819 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:01,819 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:01,819 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:01,819 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-15 20:21:01,823 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-15 20:21:01,823 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:01,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-10-15 20:21:01,871 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:01,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:01,903 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-15 20:21:01,903 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:01,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:01,919 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:01,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-10-15 20:21:01,976 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 [2021-10-15 20:21:01,995 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:01,996 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-15 20:21:01,996 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:01,996 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:01,996 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:01,996 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:21:02,000 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:21:02,000 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:02,051 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:02,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:02,084 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:02,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:02,085 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:02,088 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 [2021-10-15 20:21:02,097 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:02,098 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-15 20:21:02,098 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:02,098 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:02,098 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:02,098 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:21:02,100 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:21:02,101 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:02,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-10-15 20:21:02,131 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:02,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:02,175 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-15 20:21:02,175 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:02,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:02,183 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:02,193 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 [2021-10-15 20:21:02,202 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:02,202 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-15 20:21:02,203 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:02,203 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:02,203 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:02,203 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-15 20:21:02,210 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:21:02,210 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:02,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2021-10-15 20:21:02,231 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:02,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:02,264 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:02,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:02,265 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:02,267 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 [2021-10-15 20:21:02,276 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:02,277 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-15 20:21:02,277 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:02,277 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:02,277 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:02,277 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-15 20:21:02,281 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:21:02,281 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:02,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-10-15 20:21:02,299 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:02,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:02,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:21:02,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-15 20:21:02,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-10-15 20:21:02,333 INFO L87 Difference]: Start difference. First operand 313 states and 337 transitions. cyclomatic complexity: 29 Second operand has 13 states, 13 states have (on average 8.307692307692308) internal successors, (108), 13 states have internal predecessors, (108), 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) [2021-10-15 20:21:04,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:21:04,077 INFO L93 Difference]: Finished difference Result 282 states and 298 transitions. [2021-10-15 20:21:04,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-15 20:21:04,078 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 282 states and 298 transitions. [2021-10-15 20:21:04,079 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-10-15 20:21:04,080 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 282 states to 177 states and 189 transitions. [2021-10-15 20:21:04,081 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 177 [2021-10-15 20:21:04,081 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 177 [2021-10-15 20:21:04,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 177 states and 189 transitions. [2021-10-15 20:21:04,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:21:04,082 INFO L681 BuchiCegarLoop]: Abstraction has 177 states and 189 transitions. [2021-10-15 20:21:04,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states and 189 transitions. [2021-10-15 20:21:04,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 122. [2021-10-15 20:21:04,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 122 states have (on average 1.0901639344262295) internal successors, (133), 121 states have internal predecessors, (133), 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) [2021-10-15 20:21:04,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 133 transitions. [2021-10-15 20:21:04,085 INFO L704 BuchiCegarLoop]: Abstraction has 122 states and 133 transitions. [2021-10-15 20:21:04,085 INFO L587 BuchiCegarLoop]: Abstraction has 122 states and 133 transitions. [2021-10-15 20:21:04,085 INFO L425 BuchiCegarLoop]: ======== Iteration 28============ [2021-10-15 20:21:04,086 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 122 states and 133 transitions. [2021-10-15 20:21:04,086 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-10-15 20:21:04,086 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:21:04,086 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:21:04,087 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-15 20:21:04,087 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:21:04,087 INFO L791 eck$LassoCheckResult]: Stem: 25545#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 25541#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 25533#L51 assume !(0 == mp_add_~a3~0 % 256); 25534#L51-1 mp_add_~nb~0 := 4; 25535#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 25536#L63 assume !(0 == mp_add_~b2~0 % 256); 25537#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 25544#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 25607#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 25606#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 25603#L76-2 assume !(1 == mp_add_~i~0 % 256); 25600#L77-1 assume !(2 == mp_add_~i~0 % 256); 25599#L78-1 assume !(3 == mp_add_~i~0 % 256); 25598#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 25597#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 25596#L82-2 assume !(1 == mp_add_~i~0 % 256); 25595#L83-1 assume !(2 == mp_add_~i~0 % 256); 25594#L84-1 assume !(3 == mp_add_~i~0 % 256); 25593#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 25592#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 25591#L91-1 assume !(1 == mp_add_~i~0 % 256); 25590#L92-1 assume !(2 == mp_add_~i~0 % 256); 25589#L93-1 assume !(3 == mp_add_~i~0 % 256); 25588#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 25587#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 25586#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 25585#L76 assume !(0 == mp_add_~i~0 % 256); 25584#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 25583#L77-1 assume !(2 == mp_add_~i~0 % 256); 25582#L78-1 assume !(3 == mp_add_~i~0 % 256); 25581#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 25580#L82 assume !(0 == mp_add_~i~0 % 256); 25579#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 25578#L83-1 assume !(2 == mp_add_~i~0 % 256); 25577#L84-1 assume !(3 == mp_add_~i~0 % 256); 25575#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 25576#L87-1 assume !(0 == mp_add_~i~0 % 256); 25630#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 25629#L92-1 assume !(2 == mp_add_~i~0 % 256); 25628#L93-1 assume !(3 == mp_add_~i~0 % 256); 25627#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 25626#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 25625#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 25624#L76 assume !(0 == mp_add_~i~0 % 256); 25623#L76-2 assume !(1 == mp_add_~i~0 % 256); 25622#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 25621#L78-1 assume !(3 == mp_add_~i~0 % 256); 25620#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 25618#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 25619#L87-1 assume !(0 == mp_add_~i~0 % 256); 25614#L91-1 assume !(1 == mp_add_~i~0 % 256); 25615#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 25610#L93-1 assume !(3 == mp_add_~i~0 % 256); 25611#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 25604#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 25605#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 25557#L76 assume !(0 == mp_add_~i~0 % 256); 25546#L76-2 assume !(1 == mp_add_~i~0 % 256); 25547#L77-1 assume !(2 == mp_add_~i~0 % 256); 25548#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 25640#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 25636#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 25637#L87-1 assume !(0 == mp_add_~i~0 % 256); 25651#L91-1 assume !(1 == mp_add_~i~0 % 256); 25650#L92-1 assume !(2 == mp_add_~i~0 % 256); 25631#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 25543#L94-1 [2021-10-15 20:21:04,088 INFO L793 eck$LassoCheckResult]: Loop: 25543#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 25539#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 25540#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 25555#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 25552#L82 assume !(0 == mp_add_~i~0 % 256); 25553#L82-2 assume !(1 == mp_add_~i~0 % 256); 25556#L83-1 assume !(2 == mp_add_~i~0 % 256); 25554#L84-1 assume !(3 == mp_add_~i~0 % 256); 25549#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 25542#L87-1 assume !(0 == mp_add_~i~0 % 256); 25530#L91-1 assume !(1 == mp_add_~i~0 % 256); 25531#L92-1 assume !(2 == mp_add_~i~0 % 256); 25532#L93-1 assume !(3 == mp_add_~i~0 % 256); 25543#L94-1 [2021-10-15 20:21:04,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:21:04,088 INFO L82 PathProgramCache]: Analyzing trace with hash 544159432, now seen corresponding path program 1 times [2021-10-15 20:21:04,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:21:04,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340345090] [2021-10-15 20:21:04,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:21:04,089 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:21:04,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:21:04,472 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 43 proven. 31 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-15 20:21:04,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:21:04,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340345090] [2021-10-15 20:21:04,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340345090] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 20:21:04,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314396020] [2021-10-15 20:21:04,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:21:04,473 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 20:21:04,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:04,474 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 20:21:04,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2021-10-15 20:21:05,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:21:05,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-15 20:21:05,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:21:06,254 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 48 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-10-15 20:21:06,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314396020] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 20:21:06,254 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 20:21:06,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6] total 13 [2021-10-15 20:21:06,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110836379] [2021-10-15 20:21:06,255 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-15 20:21:06,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:21:06,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 2 times [2021-10-15 20:21:06,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:21:06,256 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650068681] [2021-10-15 20:21:06,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:21:06,256 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:21:06,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:21:06,262 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:21:06,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:21:06,267 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:21:06,517 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 20:21:06,517 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 20:21:06,517 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 20:21:06,517 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 20:21:06,517 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-15 20:21:06,517 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:06,518 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 20:21:06,518 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 20:21:06,518 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration28_Loop [2021-10-15 20:21:06,518 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 20:21:06,518 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 20:21:06,519 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:21:06,552 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:21:06,955 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 20:21:06,955 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-15 20:21:06,955 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:06,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:06,956 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:06,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2021-10-15 20:21:06,957 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 20:21:06,958 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:21:07,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:07,023 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:07,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:07,025 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:07,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2021-10-15 20:21:07,027 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-15 20:21:07,027 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:21:08,907 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-15 20:21:08,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:08,911 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 20:21:08,911 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 20:21:08,911 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 20:21:08,911 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 20:21:08,911 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 20:21:08,911 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:08,911 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 20:21:08,911 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 20:21:08,911 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration28_Loop [2021-10-15 20:21:08,911 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 20:21:08,911 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 20:21:08,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:21:08,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:21:09,367 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 20:21:09,368 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 20:21:09,368 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:09,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:09,369 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:09,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2021-10-15 20:21:09,370 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 [2021-10-15 20:21:09,378 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:09,379 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:09,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:09,379 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:09,379 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:21:09,380 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:21:09,380 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:09,382 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:09,402 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Ended with exit code 0 [2021-10-15 20:21:09,402 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:09,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:09,403 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:09,429 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 [2021-10-15 20:21:09,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2021-10-15 20:21:09,438 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:09,438 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:09,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:09,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:09,438 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:21:09,440 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:21:09,440 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:09,443 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:09,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:09,463 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-15 20:21:09,463 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:09,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:09,464 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:09,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2021-10-15 20:21:09,465 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 [2021-10-15 20:21:09,472 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:09,472 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:09,473 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:09,473 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:09,473 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-15 20:21:09,474 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-15 20:21:09,474 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:09,477 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:09,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Ended with exit code 0 [2021-10-15 20:21:09,496 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:09,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:09,497 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:09,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2021-10-15 20:21:09,498 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 [2021-10-15 20:21:09,506 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:09,506 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:09,506 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:09,506 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:09,506 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-15 20:21:09,508 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-15 20:21:09,508 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:09,512 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:09,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Ended with exit code 0 [2021-10-15 20:21:09,532 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-15 20:21:09,532 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:09,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:09,533 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:09,534 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 [2021-10-15 20:21:09,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2021-10-15 20:21:09,542 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:09,542 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:09,542 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:09,542 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:09,542 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:21:09,544 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:21:09,544 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:09,559 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:09,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:09,580 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:09,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:09,581 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:09,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2021-10-15 20:21:09,582 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 [2021-10-15 20:21:09,590 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:09,590 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:09,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:09,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:09,590 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:21:09,594 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:21:09,594 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:09,599 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:09,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:09,619 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-15 20:21:09,619 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:09,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:09,619 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:09,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2021-10-15 20:21:09,621 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 [2021-10-15 20:21:09,628 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:09,628 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:09,629 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:09,629 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:09,629 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-15 20:21:09,631 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-15 20:21:09,631 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:09,652 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:09,672 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Ended with exit code 0 [2021-10-15 20:21:09,672 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:09,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:09,673 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:09,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2021-10-15 20:21:09,689 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 [2021-10-15 20:21:09,697 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:09,697 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:09,697 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:09,697 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:09,697 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-15 20:21:09,702 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-15 20:21:09,702 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:09,719 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:09,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Ended with exit code 0 [2021-10-15 20:21:09,739 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-15 20:21:09,740 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:09,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:09,740 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:09,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2021-10-15 20:21:09,742 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 [2021-10-15 20:21:09,750 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:09,750 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-15 20:21:09,750 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:09,750 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:09,750 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:09,750 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-15 20:21:09,752 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-15 20:21:09,752 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:09,756 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:09,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:09,776 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:09,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:09,777 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:09,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Waiting until timeout for monitored process [2021-10-15 20:21:09,778 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 [2021-10-15 20:21:09,785 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:09,785 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-15 20:21:09,785 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:09,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:09,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:09,786 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-15 20:21:09,789 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-15 20:21:09,789 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:09,803 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:09,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:09,828 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-15 20:21:09,829 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:09,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:09,829 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:09,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process [2021-10-15 20:21:09,831 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 [2021-10-15 20:21:09,839 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:09,839 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-15 20:21:09,839 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:09,840 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:09,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:09,840 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:21:09,842 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:21:09,842 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:09,847 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:09,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Ended with exit code 0 [2021-10-15 20:21:09,867 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:09,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:09,868 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:09,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2021-10-15 20:21:09,869 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 [2021-10-15 20:21:09,877 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:09,877 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-15 20:21:09,877 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:09,877 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:09,877 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:09,877 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:21:09,881 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:21:09,881 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:09,892 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:09,911 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Ended with exit code 0 [2021-10-15 20:21:09,911 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-15 20:21:09,912 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:09,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:09,912 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:09,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2021-10-15 20:21:09,914 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 [2021-10-15 20:21:09,922 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:09,922 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-15 20:21:09,922 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:09,922 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:09,922 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:09,922 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-15 20:21:09,925 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-15 20:21:09,925 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:09,933 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:09,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Ended with exit code 0 [2021-10-15 20:21:09,952 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:09,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:09,953 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:09,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Waiting until timeout for monitored process [2021-10-15 20:21:09,954 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 [2021-10-15 20:21:09,962 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:09,962 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-15 20:21:09,963 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:09,963 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:09,963 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:09,963 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-15 20:21:09,968 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-15 20:21:09,968 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:09,985 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:10,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:10,004 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-15 20:21:10,005 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:10,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:10,006 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:10,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Waiting until timeout for monitored process [2021-10-15 20:21:10,007 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 [2021-10-15 20:21:10,014 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:10,014 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-15 20:21:10,014 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:10,015 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:10,015 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:10,015 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:21:10,016 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:21:10,016 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:10,020 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:10,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:10,041 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:10,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:10,041 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:10,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Waiting until timeout for monitored process [2021-10-15 20:21:10,042 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 [2021-10-15 20:21:10,050 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:10,050 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-15 20:21:10,050 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:10,050 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:10,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:10,050 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:21:10,054 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:21:10,054 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:10,060 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:10,080 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Ended with exit code 0 [2021-10-15 20:21:10,080 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-15 20:21:10,080 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:10,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:10,081 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:10,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Waiting until timeout for monitored process [2021-10-15 20:21:10,082 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 [2021-10-15 20:21:10,090 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:10,090 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-15 20:21:10,090 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:10,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:10,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:10,090 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-15 20:21:10,093 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:21:10,093 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:10,099 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:10,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Ended with exit code 0 [2021-10-15 20:21:10,119 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:10,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:10,120 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:10,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Waiting until timeout for monitored process [2021-10-15 20:21:10,121 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 [2021-10-15 20:21:10,129 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:10,129 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-15 20:21:10,129 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:10,129 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:10,129 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:10,129 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-15 20:21:10,134 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:21:10,134 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:10,144 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:10,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:10,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:21:10,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-15 20:21:10,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-10-15 20:21:10,165 INFO L87 Difference]: Start difference. First operand 122 states and 133 transitions. cyclomatic complexity: 12 Second operand has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 13 states have internal predecessors, (97), 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) [2021-10-15 20:21:11,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:21:11,281 INFO L93 Difference]: Finished difference Result 317 states and 339 transitions. [2021-10-15 20:21:11,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-15 20:21:11,282 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 317 states and 339 transitions. [2021-10-15 20:21:11,282 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 26 [2021-10-15 20:21:11,284 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 317 states to 200 states and 216 transitions. [2021-10-15 20:21:11,284 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 200 [2021-10-15 20:21:11,284 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 200 [2021-10-15 20:21:11,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 200 states and 216 transitions. [2021-10-15 20:21:11,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:21:11,285 INFO L681 BuchiCegarLoop]: Abstraction has 200 states and 216 transitions. [2021-10-15 20:21:11,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states and 216 transitions. [2021-10-15 20:21:11,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 122. [2021-10-15 20:21:11,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 122 states have (on average 1.0819672131147542) internal successors, (132), 121 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) [2021-10-15 20:21:11,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 132 transitions. [2021-10-15 20:21:11,289 INFO L704 BuchiCegarLoop]: Abstraction has 122 states and 132 transitions. [2021-10-15 20:21:11,289 INFO L587 BuchiCegarLoop]: Abstraction has 122 states and 132 transitions. [2021-10-15 20:21:11,289 INFO L425 BuchiCegarLoop]: ======== Iteration 29============ [2021-10-15 20:21:11,289 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 122 states and 132 transitions. [2021-10-15 20:21:11,289 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-10-15 20:21:11,290 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:21:11,290 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:21:11,290 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-15 20:21:11,290 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:21:11,291 INFO L791 eck$LassoCheckResult]: Stem: 26204#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 26198#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 26191#L51 assume !(0 == mp_add_~a3~0 % 256); 26192#L51-1 mp_add_~nb~0 := 4; 26193#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 26194#L63 assume 0 == mp_add_~b2~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 26195#L65 assume 0 == mp_add_~b1~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 26201#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 26202#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 26277#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 26276#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 26275#L76-2 assume !(1 == mp_add_~i~0 % 256); 26274#L77-1 assume !(2 == mp_add_~i~0 % 256); 26273#L78-1 assume !(3 == mp_add_~i~0 % 256); 26272#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 26271#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 26270#L82-2 assume !(1 == mp_add_~i~0 % 256); 26269#L83-1 assume !(2 == mp_add_~i~0 % 256); 26268#L84-1 assume !(3 == mp_add_~i~0 % 256); 26267#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 26266#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 26265#L91-1 assume !(1 == mp_add_~i~0 % 256); 26264#L92-1 assume !(2 == mp_add_~i~0 % 256); 26263#L93-1 assume !(3 == mp_add_~i~0 % 256); 26262#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 26261#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 26260#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 26259#L76 assume !(0 == mp_add_~i~0 % 256); 26258#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 26257#L77-1 assume !(2 == mp_add_~i~0 % 256); 26256#L78-1 assume !(3 == mp_add_~i~0 % 256); 26255#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 26254#L82 assume !(0 == mp_add_~i~0 % 256); 26253#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 26252#L83-1 assume !(2 == mp_add_~i~0 % 256); 26251#L84-1 assume !(3 == mp_add_~i~0 % 256); 26249#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 26250#L87-1 assume !(0 == mp_add_~i~0 % 256); 26245#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 26246#L92-1 assume !(2 == mp_add_~i~0 % 256); 26241#L93-1 assume !(3 == mp_add_~i~0 % 256); 26242#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 26237#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 26238#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 26233#L76 assume !(0 == mp_add_~i~0 % 256); 26234#L76-2 assume !(1 == mp_add_~i~0 % 256); 26229#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 26230#L78-1 assume !(3 == mp_add_~i~0 % 256); 26225#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 26226#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 26285#L87-1 assume !(0 == mp_add_~i~0 % 256); 26309#L91-1 assume !(1 == mp_add_~i~0 % 256); 26308#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 26307#L93-1 assume !(3 == mp_add_~i~0 % 256); 26306#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 26305#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 26304#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 26303#L76 assume !(0 == mp_add_~i~0 % 256); 26302#L76-2 assume !(1 == mp_add_~i~0 % 256); 26301#L77-1 assume !(2 == mp_add_~i~0 % 256); 26300#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 26299#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 26213#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 26199#L87-1 assume !(0 == mp_add_~i~0 % 256); 26190#L91-1 assume !(1 == mp_add_~i~0 % 256); 26188#L92-1 assume !(2 == mp_add_~i~0 % 256); 26189#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 26200#L94-1 [2021-10-15 20:21:11,291 INFO L793 eck$LassoCheckResult]: Loop: 26200#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 26196#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 26197#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 26214#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 26209#L82 assume !(0 == mp_add_~i~0 % 256); 26210#L82-2 assume !(1 == mp_add_~i~0 % 256); 26218#L83-1 assume !(2 == mp_add_~i~0 % 256); 26219#L84-1 assume !(3 == mp_add_~i~0 % 256); 26290#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 26289#L87-1 assume !(0 == mp_add_~i~0 % 256); 26288#L91-1 assume !(1 == mp_add_~i~0 % 256); 26287#L92-1 assume !(2 == mp_add_~i~0 % 256); 26203#L93-1 assume !(3 == mp_add_~i~0 % 256); 26200#L94-1 [2021-10-15 20:21:11,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:21:11,292 INFO L82 PathProgramCache]: Analyzing trace with hash -820936562, now seen corresponding path program 1 times [2021-10-15 20:21:11,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:21:11,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303458899] [2021-10-15 20:21:11,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:21:11,292 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:21:11,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:21:11,538 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 47 proven. 11 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-15 20:21:11,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:21:11,538 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303458899] [2021-10-15 20:21:11,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303458899] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 20:21:11,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803903505] [2021-10-15 20:21:11,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:21:11,539 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 20:21:11,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:11,552 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 20:21:11,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2021-10-15 20:21:12,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:21:12,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-15 20:21:12,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:21:12,896 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 46 proven. 11 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-10-15 20:21:12,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803903505] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 20:21:12,897 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 20:21:12,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2021-10-15 20:21:12,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180563585] [2021-10-15 20:21:12,897 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-15 20:21:12,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:21:12,898 INFO L82 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 3 times [2021-10-15 20:21:12,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:21:12,898 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878435508] [2021-10-15 20:21:12,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:21:12,898 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:21:12,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:21:12,904 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:21:12,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:21:12,908 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:21:13,125 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 20:21:13,125 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 20:21:13,125 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 20:21:13,125 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 20:21:13,125 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-15 20:21:13,125 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:13,125 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 20:21:13,125 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 20:21:13,125 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration29_Loop [2021-10-15 20:21:13,125 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 20:21:13,125 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 20:21:13,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:21:13,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:21:13,542 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 20:21:13,542 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-15 20:21:13,543 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:13,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:13,546 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:13,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Waiting until timeout for monitored process [2021-10-15 20:21:13,547 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 20:21:13,547 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:21:13,615 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Ended with exit code 0 [2021-10-15 20:21:13,616 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:13,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:13,616 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:13,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Waiting until timeout for monitored process [2021-10-15 20:21:13,617 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-15 20:21:13,618 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:21:15,105 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-15 20:21:15,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:15,108 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 20:21:15,109 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 20:21:15,109 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 20:21:15,109 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 20:21:15,109 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 20:21:15,109 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:15,109 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 20:21:15,109 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 20:21:15,109 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration29_Loop [2021-10-15 20:21:15,109 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 20:21:15,109 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 20:21:15,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:21:15,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:21:15,468 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 20:21:15,468 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 20:21:15,469 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:15,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:15,470 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:15,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Waiting until timeout for monitored process [2021-10-15 20:21:15,471 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:21:15,479 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:15,479 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:15,480 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:15,480 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:15,480 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:21:15,482 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:21:15,482 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:15,485 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:15,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:15,505 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:15,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:15,505 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:15,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Waiting until timeout for monitored process [2021-10-15 20:21:15,507 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 [2021-10-15 20:21:15,514 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:15,514 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:15,514 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:15,514 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:15,515 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:21:15,515 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:21:15,515 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:15,517 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:15,537 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Ended with exit code 0 [2021-10-15 20:21:15,538 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-15 20:21:15,538 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:15,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:15,539 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:15,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Waiting until timeout for monitored process [2021-10-15 20:21:15,540 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 [2021-10-15 20:21:15,547 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:15,547 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:15,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:15,547 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:15,547 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-15 20:21:15,550 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-15 20:21:15,550 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:15,554 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:15,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:15,573 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:15,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:15,574 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:15,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Waiting until timeout for monitored process [2021-10-15 20:21:15,576 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 [2021-10-15 20:21:15,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:15,583 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:15,583 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:15,583 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:15,583 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-15 20:21:15,585 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-15 20:21:15,585 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:15,587 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:15,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:15,607 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-15 20:21:15,607 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:15,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:15,608 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:15,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Waiting until timeout for monitored process [2021-10-15 20:21:15,609 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 [2021-10-15 20:21:15,616 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:15,616 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:15,616 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:15,616 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:15,616 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:21:15,620 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:21:15,620 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:15,625 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:15,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:15,644 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:15,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:15,651 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:15,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Waiting until timeout for monitored process [2021-10-15 20:21:15,652 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 [2021-10-15 20:21:15,659 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:15,659 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:15,659 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:15,659 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:15,659 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:21:15,661 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:21:15,661 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:15,664 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:15,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Ended with exit code 0 [2021-10-15 20:21:15,684 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-15 20:21:15,684 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:15,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:15,685 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:15,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Waiting until timeout for monitored process [2021-10-15 20:21:15,686 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 [2021-10-15 20:21:15,693 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:15,693 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:15,694 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:15,694 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:15,694 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-15 20:21:15,698 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-15 20:21:15,698 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:15,714 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:15,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:15,734 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:15,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:15,734 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:15,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Waiting until timeout for monitored process [2021-10-15 20:21:15,735 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 [2021-10-15 20:21:15,743 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:15,743 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:15,743 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:15,743 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:15,743 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-15 20:21:15,745 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-15 20:21:15,746 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:15,770 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:15,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:15,803 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-15 20:21:15,803 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:15,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:15,804 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:15,812 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 [2021-10-15 20:21:15,821 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:15,821 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-15 20:21:15,821 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:15,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:15,821 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:15,821 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-15 20:21:15,825 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-15 20:21:15,825 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:15,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Waiting until timeout for monitored process [2021-10-15 20:21:15,838 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:15,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:15,870 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:15,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:15,871 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:15,873 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 [2021-10-15 20:21:15,882 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:15,882 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-15 20:21:15,882 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:15,883 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:15,883 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:15,883 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-15 20:21:15,885 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-15 20:21:15,885 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:15,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Waiting until timeout for monitored process [2021-10-15 20:21:15,903 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:15,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:15,935 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-15 20:21:15,935 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:15,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:15,939 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:15,941 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 [2021-10-15 20:21:15,950 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:15,951 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-15 20:21:15,951 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:15,951 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:15,951 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:15,951 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:21:15,956 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:21:15,956 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:15,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Waiting until timeout for monitored process [2021-10-15 20:21:15,979 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:15,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:15,999 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:15,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:16,000 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:16,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Waiting until timeout for monitored process [2021-10-15 20:21:16,001 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 [2021-10-15 20:21:16,009 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:16,009 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-15 20:21:16,009 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:16,009 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:16,009 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:16,009 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:21:16,013 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:21:16,013 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:16,024 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:16,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:16,043 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-15 20:21:16,043 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:16,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:16,044 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:16,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Waiting until timeout for monitored process [2021-10-15 20:21:16,045 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 [2021-10-15 20:21:16,053 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:16,054 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-15 20:21:16,054 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:16,054 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:16,054 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:16,054 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-15 20:21:16,060 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-15 20:21:16,061 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:16,078 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:16,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:16,098 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:16,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:16,099 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:16,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Waiting until timeout for monitored process [2021-10-15 20:21:16,100 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 [2021-10-15 20:21:16,107 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:16,107 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-15 20:21:16,107 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:16,108 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:16,108 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:16,108 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-15 20:21:16,110 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-15 20:21:16,111 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:16,119 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:16,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:16,138 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-15 20:21:16,138 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:16,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:16,139 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:16,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Waiting until timeout for monitored process [2021-10-15 20:21:16,140 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 [2021-10-15 20:21:16,148 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:16,148 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-15 20:21:16,148 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:16,148 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:16,148 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:16,148 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:21:16,152 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:21:16,152 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:16,167 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:16,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Ended with exit code 0 [2021-10-15 20:21:16,187 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:16,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:16,187 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:16,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Waiting until timeout for monitored process [2021-10-15 20:21:16,188 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 [2021-10-15 20:21:16,196 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:16,196 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-15 20:21:16,196 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:16,196 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:16,196 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:16,196 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:21:16,198 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:21:16,198 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:16,202 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:16,221 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Ended with exit code 0 [2021-10-15 20:21:16,224 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-15 20:21:16,224 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:16,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:16,225 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:16,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Waiting until timeout for monitored process [2021-10-15 20:21:16,226 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 [2021-10-15 20:21:16,234 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:16,234 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-15 20:21:16,234 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:16,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:16,234 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:16,234 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-15 20:21:16,240 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:21:16,240 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:16,250 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:16,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:16,270 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:16,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:16,271 INFO L229 MonitoredProcess]: Starting monitored process 116 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:16,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Waiting until timeout for monitored process [2021-10-15 20:21:16,272 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 [2021-10-15 20:21:16,279 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:16,279 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-15 20:21:16,279 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:16,280 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:16,280 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:16,280 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-15 20:21:16,282 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:21:16,282 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:16,289 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:16,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:16,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:21:16,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-15 20:21:16,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-10-15 20:21:16,309 INFO L87 Difference]: Start difference. First operand 122 states and 132 transitions. cyclomatic complexity: 11 Second operand has 15 states, 15 states have (on average 6.266666666666667) internal successors, (94), 15 states have internal predecessors, (94), 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) [2021-10-15 20:21:18,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:21:18,117 INFO L93 Difference]: Finished difference Result 157 states and 162 transitions. [2021-10-15 20:21:18,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-15 20:21:18,118 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 157 states and 162 transitions. [2021-10-15 20:21:18,118 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-10-15 20:21:18,119 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 157 states to 120 states and 125 transitions. [2021-10-15 20:21:18,119 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 120 [2021-10-15 20:21:18,119 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 120 [2021-10-15 20:21:18,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 120 states and 125 transitions. [2021-10-15 20:21:18,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:21:18,120 INFO L681 BuchiCegarLoop]: Abstraction has 120 states and 125 transitions. [2021-10-15 20:21:18,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states and 125 transitions. [2021-10-15 20:21:18,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 114. [2021-10-15 20:21:18,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 114 states have (on average 1.043859649122807) internal successors, (119), 113 states have internal predecessors, (119), 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) [2021-10-15 20:21:18,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 119 transitions. [2021-10-15 20:21:18,122 INFO L704 BuchiCegarLoop]: Abstraction has 114 states and 119 transitions. [2021-10-15 20:21:18,122 INFO L587 BuchiCegarLoop]: Abstraction has 114 states and 119 transitions. [2021-10-15 20:21:18,122 INFO L425 BuchiCegarLoop]: ======== Iteration 30============ [2021-10-15 20:21:18,122 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 114 states and 119 transitions. [2021-10-15 20:21:18,123 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-10-15 20:21:18,123 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:21:18,123 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:21:18,124 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-15 20:21:18,124 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:21:18,124 INFO L791 eck$LassoCheckResult]: Stem: 26723#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 26717#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 26710#L51 assume !(0 == mp_add_~a3~0 % 256); 26711#L51-1 mp_add_~nb~0 := 4; 26712#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 26713#L63 assume 0 == mp_add_~b2~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 26714#L65 assume !(0 == mp_add_~b1~0 % 256); 26720#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 26721#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 26765#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 26764#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 26763#L76-2 assume !(1 == mp_add_~i~0 % 256); 26762#L77-1 assume !(2 == mp_add_~i~0 % 256); 26761#L78-1 assume !(3 == mp_add_~i~0 % 256); 26760#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 26731#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 26732#L82-2 assume !(1 == mp_add_~i~0 % 256); 26757#L83-1 assume !(2 == mp_add_~i~0 % 256); 26756#L84-1 assume !(3 == mp_add_~i~0 % 256); 26755#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 26754#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 26753#L91-1 assume !(1 == mp_add_~i~0 % 256); 26752#L92-1 assume !(2 == mp_add_~i~0 % 256); 26751#L93-1 assume !(3 == mp_add_~i~0 % 256); 26750#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 26749#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 26748#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 26747#L76 assume !(0 == mp_add_~i~0 % 256); 26746#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 26745#L77-1 assume !(2 == mp_add_~i~0 % 256); 26744#L78-1 assume !(3 == mp_add_~i~0 % 256); 26743#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 26742#L82 assume !(0 == mp_add_~i~0 % 256); 26741#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 26739#L83-1 assume !(2 == mp_add_~i~0 % 256); 26740#L84-1 assume !(3 == mp_add_~i~0 % 256); 26728#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 26729#L87-1 assume !(0 == mp_add_~i~0 % 256); 26816#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 26815#L92-1 assume !(2 == mp_add_~i~0 % 256); 26814#L93-1 assume !(3 == mp_add_~i~0 % 256); 26719#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 26715#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 26716#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 26735#L76 assume !(0 == mp_add_~i~0 % 256); 26724#L76-2 assume !(1 == mp_add_~i~0 % 256); 26725#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 26809#L78-1 assume !(3 == mp_add_~i~0 % 256); 26808#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 26807#L81 assume mp_add_~partial_sum~0 % 65536 > 255;mp_add_~partial_sum~0 := ~bitwiseAnd(mp_add_~partial_sum~0 % 65536, 255);mp_add_~carry~0 := 1; 26805#L87-1 assume !(0 == mp_add_~i~0 % 256); 26803#L91-1 assume !(1 == mp_add_~i~0 % 256); 26801#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 26799#L93-1 assume !(3 == mp_add_~i~0 % 256); 26797#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 26795#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 26793#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 26791#L76 assume !(0 == mp_add_~i~0 % 256); 26789#L76-2 assume !(1 == mp_add_~i~0 % 256); 26787#L77-1 assume !(2 == mp_add_~i~0 % 256); 26785#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 26783#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 26780#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 26781#L87-1 assume !(0 == mp_add_~i~0 % 256); 26820#L91-1 assume !(1 == mp_add_~i~0 % 256); 26819#L92-1 assume !(2 == mp_add_~i~0 % 256); 26770#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 26771#L94-1 [2021-10-15 20:21:18,125 INFO L793 eck$LassoCheckResult]: Loop: 26771#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 26818#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 26817#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 26758#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 26759#L82 assume !(0 == mp_add_~i~0 % 256); 26736#L82-2 assume !(1 == mp_add_~i~0 % 256); 26737#L83-1 assume !(2 == mp_add_~i~0 % 256); 26733#L84-1 assume !(3 == mp_add_~i~0 % 256); 26734#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 26779#L87-1 assume !(0 == mp_add_~i~0 % 256); 26777#L91-1 assume !(1 == mp_add_~i~0 % 256); 26775#L92-1 assume !(2 == mp_add_~i~0 % 256); 26772#L93-1 assume !(3 == mp_add_~i~0 % 256); 26771#L94-1 [2021-10-15 20:21:18,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:21:18,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1140638096, now seen corresponding path program 1 times [2021-10-15 20:21:18,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:21:18,125 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608117197] [2021-10-15 20:21:18,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:21:18,126 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:21:18,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:21:18,325 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 57 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-15 20:21:18,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:21:18,326 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608117197] [2021-10-15 20:21:18,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608117197] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 20:21:18,326 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087028907] [2021-10-15 20:21:18,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:21:18,326 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 20:21:18,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:18,328 INFO L229 MonitoredProcess]: Starting monitored process 117 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 20:21:18,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Waiting until timeout for monitored process [2021-10-15 20:21:18,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:21:18,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-15 20:21:18,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:21:19,243 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 57 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-15 20:21:19,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2087028907] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 20:21:19,243 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 20:21:19,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-10-15 20:21:19,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106301283] [2021-10-15 20:21:19,244 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-15 20:21:19,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:21:19,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 4 times [2021-10-15 20:21:19,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:21:19,245 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661914086] [2021-10-15 20:21:19,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:21:19,245 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:21:19,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:21:19,252 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:21:19,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:21:19,256 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:21:19,470 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 20:21:19,471 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 20:21:19,471 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 20:21:19,471 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 20:21:19,471 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-15 20:21:19,471 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:19,471 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 20:21:19,471 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 20:21:19,471 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration30_Loop [2021-10-15 20:21:19,471 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 20:21:19,471 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 20:21:19,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:21:19,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:21:19,812 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 20:21:19,812 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-15 20:21:19,812 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:19,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:19,813 INFO L229 MonitoredProcess]: Starting monitored process 118 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:19,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (118)] Waiting until timeout for monitored process [2021-10-15 20:21:19,814 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 20:21:19,814 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:21:19,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (118)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:19,862 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:19,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:19,863 INFO L229 MonitoredProcess]: Starting monitored process 119 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:19,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (119)] Waiting until timeout for monitored process [2021-10-15 20:21:19,864 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-15 20:21:19,864 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:21:21,522 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-15 20:21:21,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (119)] Ended with exit code 0 [2021-10-15 20:21:21,525 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 20:21:21,525 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 20:21:21,525 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 20:21:21,526 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 20:21:21,526 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 20:21:21,526 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:21,526 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 20:21:21,526 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 20:21:21,526 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration30_Loop [2021-10-15 20:21:21,526 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 20:21:21,526 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 20:21:21,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:21:21,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:21:21,876 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 20:21:21,876 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 20:21:21,876 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:21,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:21,880 INFO L229 MonitoredProcess]: Starting monitored process 120 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:21,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (120)] Waiting until timeout for monitored process [2021-10-15 20:21:21,881 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 [2021-10-15 20:21:21,888 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:21,889 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:21,889 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:21,889 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:21,889 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:21:21,891 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:21:21,891 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:21,894 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:21,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (120)] Ended with exit code 0 [2021-10-15 20:21:21,914 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:21,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:21,915 INFO L229 MonitoredProcess]: Starting monitored process 121 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:21,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (121)] Waiting until timeout for monitored process [2021-10-15 20:21:21,916 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 [2021-10-15 20:21:21,923 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:21,923 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:21,923 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:21,923 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:21,923 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:21:21,924 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:21:21,924 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:21,926 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:21,945 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (121)] Ended with exit code 0 [2021-10-15 20:21:21,945 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-15 20:21:21,945 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:21,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:21,946 INFO L229 MonitoredProcess]: Starting monitored process 122 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:21,947 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 [2021-10-15 20:21:21,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (122)] Waiting until timeout for monitored process [2021-10-15 20:21:21,955 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:21,955 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:21,955 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:21,955 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:21,955 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-15 20:21:21,958 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-15 20:21:21,958 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:21,962 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:21,981 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (122)] Ended with exit code 0 [2021-10-15 20:21:21,981 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:21,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:21,982 INFO L229 MonitoredProcess]: Starting monitored process 123 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:21,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (123)] Waiting until timeout for monitored process [2021-10-15 20:21:21,983 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 [2021-10-15 20:21:21,990 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:21,990 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:21,990 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:21,990 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:21,991 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-15 20:21:21,992 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-15 20:21:21,992 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:21,994 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:22,016 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (123)] Ended with exit code 0 [2021-10-15 20:21:22,016 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-15 20:21:22,016 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:22,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:22,017 INFO L229 MonitoredProcess]: Starting monitored process 124 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:22,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (124)] Waiting until timeout for monitored process [2021-10-15 20:21:22,020 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 [2021-10-15 20:21:22,027 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:22,028 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:22,028 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:22,028 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:22,028 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:21:22,031 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:21:22,031 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:22,036 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:22,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (124)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:22,056 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:22,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:22,057 INFO L229 MonitoredProcess]: Starting monitored process 125 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:22,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (125)] Waiting until timeout for monitored process [2021-10-15 20:21:22,058 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 [2021-10-15 20:21:22,065 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:22,065 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:22,065 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:22,066 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:22,066 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:21:22,067 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:21:22,067 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:22,070 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:22,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (125)] Ended with exit code 0 [2021-10-15 20:21:22,090 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-15 20:21:22,090 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:22,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:22,091 INFO L229 MonitoredProcess]: Starting monitored process 126 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:22,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (126)] Waiting until timeout for monitored process [2021-10-15 20:21:22,092 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 [2021-10-15 20:21:22,099 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:22,099 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:22,100 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:22,100 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:22,100 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-15 20:21:22,104 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-15 20:21:22,104 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:22,110 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:22,130 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (126)] Ended with exit code 0 [2021-10-15 20:21:22,130 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:22,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:22,131 INFO L229 MonitoredProcess]: Starting monitored process 127 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:22,133 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 [2021-10-15 20:21:22,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (127)] Waiting until timeout for monitored process [2021-10-15 20:21:22,140 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:22,140 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:22,141 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:22,141 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:22,141 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-15 20:21:22,143 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-15 20:21:22,143 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:22,146 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:22,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (127)] Ended with exit code 0 [2021-10-15 20:21:22,169 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-15 20:21:22,169 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:22,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:22,170 INFO L229 MonitoredProcess]: Starting monitored process 128 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:22,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (128)] Waiting until timeout for monitored process [2021-10-15 20:21:22,173 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 [2021-10-15 20:21:22,180 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:22,180 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-15 20:21:22,180 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:22,180 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:22,181 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:22,181 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-15 20:21:22,183 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-15 20:21:22,183 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:22,190 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:22,210 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (128)] Ended with exit code 0 [2021-10-15 20:21:22,210 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:22,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:22,211 INFO L229 MonitoredProcess]: Starting monitored process 129 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:22,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (129)] Waiting until timeout for monitored process [2021-10-15 20:21:22,212 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 [2021-10-15 20:21:22,219 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:22,219 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-15 20:21:22,219 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:22,219 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:22,220 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:22,220 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-15 20:21:22,221 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-15 20:21:22,221 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:22,225 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:22,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (129)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:22,244 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-15 20:21:22,244 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:22,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:22,245 INFO L229 MonitoredProcess]: Starting monitored process 130 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:22,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (130)] Waiting until timeout for monitored process [2021-10-15 20:21:22,246 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 [2021-10-15 20:21:22,254 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:22,254 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-15 20:21:22,254 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:22,254 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:22,254 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:22,254 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:21:22,258 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:21:22,258 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:22,268 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:22,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (130)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:22,288 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:22,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:22,289 INFO L229 MonitoredProcess]: Starting monitored process 131 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:22,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (131)] Waiting until timeout for monitored process [2021-10-15 20:21:22,290 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 [2021-10-15 20:21:22,298 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:22,298 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-15 20:21:22,298 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:22,298 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:22,298 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:22,298 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:21:22,300 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:21:22,300 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:22,306 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:22,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (131)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:22,326 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-15 20:21:22,326 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:22,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:22,326 INFO L229 MonitoredProcess]: Starting monitored process 132 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:22,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (132)] Waiting until timeout for monitored process [2021-10-15 20:21:22,328 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 [2021-10-15 20:21:22,336 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:22,336 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-15 20:21:22,336 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:22,336 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:22,337 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:22,337 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-15 20:21:22,341 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-15 20:21:22,341 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:22,357 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:22,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (132)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:22,377 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:22,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:22,378 INFO L229 MonitoredProcess]: Starting monitored process 133 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:22,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (133)] Waiting until timeout for monitored process [2021-10-15 20:21:22,380 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 [2021-10-15 20:21:22,388 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:22,388 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-15 20:21:22,388 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:22,388 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:22,388 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:22,388 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-15 20:21:22,391 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-15 20:21:22,391 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:22,399 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:22,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (133)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:22,418 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-15 20:21:22,419 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:22,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:22,419 INFO L229 MonitoredProcess]: Starting monitored process 134 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:22,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (134)] Waiting until timeout for monitored process [2021-10-15 20:21:22,420 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 20:21:22,428 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:22,428 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-15 20:21:22,428 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:22,428 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:22,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:22,428 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:21:22,431 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:21:22,431 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:22,440 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:22,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (134)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:22,460 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:22,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:22,461 INFO L229 MonitoredProcess]: Starting monitored process 135 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:22,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (135)] Waiting until timeout for monitored process [2021-10-15 20:21:22,462 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 [2021-10-15 20:21:22,469 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:22,469 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-15 20:21:22,469 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:22,469 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:22,469 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:22,469 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:21:22,471 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:21:22,471 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:22,475 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:22,494 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (135)] Ended with exit code 0 [2021-10-15 20:21:22,494 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-15 20:21:22,494 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:22,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:22,495 INFO L229 MonitoredProcess]: Starting monitored process 136 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:22,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (136)] Waiting until timeout for monitored process [2021-10-15 20:21:22,497 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 [2021-10-15 20:21:22,504 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:22,504 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-15 20:21:22,505 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:22,505 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:22,505 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:22,505 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-15 20:21:22,510 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:21:22,510 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:22,520 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:22,539 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (136)] Ended with exit code 0 [2021-10-15 20:21:22,539 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:22,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:22,541 INFO L229 MonitoredProcess]: Starting monitored process 137 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:22,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (137)] Waiting until timeout for monitored process [2021-10-15 20:21:22,542 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 [2021-10-15 20:21:22,549 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:22,549 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-15 20:21:22,549 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:22,550 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:22,550 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:22,550 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-15 20:21:22,552 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:21:22,552 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:22,558 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:22,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (137)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:22,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:21:22,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-15 20:21:22,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-10-15 20:21:22,579 INFO L87 Difference]: Start difference. First operand 114 states and 119 transitions. cyclomatic complexity: 6 Second operand has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 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) [2021-10-15 20:21:22,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:21:22,781 INFO L93 Difference]: Finished difference Result 108 states and 110 transitions. [2021-10-15 20:21:22,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-15 20:21:22,781 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 110 transitions. [2021-10-15 20:21:22,782 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-10-15 20:21:22,783 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 108 states and 110 transitions. [2021-10-15 20:21:22,783 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 108 [2021-10-15 20:21:22,783 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 108 [2021-10-15 20:21:22,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 108 states and 110 transitions. [2021-10-15 20:21:22,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:21:22,784 INFO L681 BuchiCegarLoop]: Abstraction has 108 states and 110 transitions. [2021-10-15 20:21:22,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states and 110 transitions. [2021-10-15 20:21:22,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 80. [2021-10-15 20:21:22,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 80 states have (on average 1.025) internal successors, (82), 79 states have internal predecessors, (82), 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) [2021-10-15 20:21:22,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 82 transitions. [2021-10-15 20:21:22,786 INFO L704 BuchiCegarLoop]: Abstraction has 80 states and 82 transitions. [2021-10-15 20:21:22,786 INFO L587 BuchiCegarLoop]: Abstraction has 80 states and 82 transitions. [2021-10-15 20:21:22,787 INFO L425 BuchiCegarLoop]: ======== Iteration 31============ [2021-10-15 20:21:22,787 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states and 82 transitions. [2021-10-15 20:21:22,787 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-10-15 20:21:22,787 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:21:22,787 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:21:22,788 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:21:22,788 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:21:22,788 INFO L791 eck$LassoCheckResult]: Stem: 27159#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(15); 27152#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~ret4, main_~a~0, main_~b~0, main_~r~1;havoc main_~a~0;havoc main_~b~0;havoc main_~r~1;main_~b~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~a~0 := 234770789;mp_add_#in~a, mp_add_#in~b := main_~a~0, main_~b~0;havoc mp_add_#res;havoc mp_add_~a, mp_add_~b, mp_add_~a0~0, mp_add_~a1~0, mp_add_~a2~0, mp_add_~a3~0, mp_add_~b0~0, mp_add_~b1~0, mp_add_~b2~0, mp_add_~b3~0, mp_add_~r0~0, mp_add_~r1~0, mp_add_~r2~0, mp_add_~r3~0, mp_add_~carry~0, mp_add_~partial_sum~0, mp_add_~r~0, mp_add_~i~0, mp_add_~na~0, mp_add_~nb~0;mp_add_~a := mp_add_#in~a;mp_add_~b := mp_add_#in~b;havoc mp_add_~a0~0;havoc mp_add_~a1~0;havoc mp_add_~a2~0;havoc mp_add_~a3~0;havoc mp_add_~b0~0;havoc mp_add_~b1~0;havoc mp_add_~b2~0;havoc mp_add_~b3~0;havoc mp_add_~r0~0;havoc mp_add_~r1~0;havoc mp_add_~r2~0;havoc mp_add_~r3~0;havoc mp_add_~carry~0;havoc mp_add_~partial_sum~0;havoc mp_add_~r~0;havoc mp_add_~i~0;havoc mp_add_~na~0;havoc mp_add_~nb~0;mp_add_~a0~0 := mp_add_~a;mp_add_~a1~0 := mp_add_~a / 256;mp_add_~a2~0 := mp_add_~a / 65536;mp_add_~a3~0 := mp_add_~a / 16777216;mp_add_~b0~0 := mp_add_~b;mp_add_~b1~0 := mp_add_~b / 256;mp_add_~b2~0 := mp_add_~b / 65536;mp_add_~b3~0 := mp_add_~b / 16777216;mp_add_~na~0 := 4; 27147#L51 assume !(0 == mp_add_~a3~0 % 256); 27148#L51-1 mp_add_~nb~0 := 4; 27149#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 27150#L63 assume 0 == mp_add_~b2~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 27151#L65 assume !(0 == mp_add_~b1~0 % 256); 27157#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 27158#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 27183#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 27182#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 27181#L76-2 assume !(1 == mp_add_~i~0 % 256); 27180#L77-1 assume !(2 == mp_add_~i~0 % 256); 27179#L78-1 assume !(3 == mp_add_~i~0 % 256); 27178#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 27177#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 27168#L82-2 assume !(1 == mp_add_~i~0 % 256); 27169#L83-1 assume !(2 == mp_add_~i~0 % 256); 27167#L84-1 assume !(3 == mp_add_~i~0 % 256); 27163#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 27155#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 27144#L91-1 assume !(1 == mp_add_~i~0 % 256); 27145#L92-1 assume !(2 == mp_add_~i~0 % 256); 27146#L93-1 assume !(3 == mp_add_~i~0 % 256); 27156#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 27153#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 27154#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 27170#L76 assume !(0 == mp_add_~i~0 % 256); 27189#L76-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a1~0 % 256; 27187#L77-1 assume !(2 == mp_add_~i~0 % 256); 27184#L78-1 assume !(3 == mp_add_~i~0 % 256); 27185#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 27165#L82 assume !(0 == mp_add_~i~0 % 256); 27166#L82-2 assume 1 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b1~0 % 256; 27172#L83-1 assume !(2 == mp_add_~i~0 % 256); 27173#L84-1 assume !(3 == mp_add_~i~0 % 256); 27223#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 27222#L87-1 assume !(0 == mp_add_~i~0 % 256); 27221#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 27220#L92-1 assume !(2 == mp_add_~i~0 % 256); 27219#L93-1 assume !(3 == mp_add_~i~0 % 256); 27217#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 27215#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 27213#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 27174#L76 assume !(0 == mp_add_~i~0 % 256); 27160#L76-2 assume !(1 == mp_add_~i~0 % 256); 27161#L77-1 assume 2 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a2~0 % 256; 27162#L78-1 assume !(3 == mp_add_~i~0 % 256); 27164#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 27171#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 27218#L87-1 assume !(0 == mp_add_~i~0 % 256); 27216#L91-1 assume !(1 == mp_add_~i~0 % 256); 27214#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 27212#L93-1 assume !(3 == mp_add_~i~0 % 256); 27211#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 27210#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 27209#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 27208#L76 assume !(0 == mp_add_~i~0 % 256); 27207#L76-2 assume !(1 == mp_add_~i~0 % 256); 27205#L77-1 assume !(2 == mp_add_~i~0 % 256); 27203#L78-1 assume 3 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a3~0 % 256; 27201#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 27199#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 27197#L87-1 assume !(0 == mp_add_~i~0 % 256); 27195#L91-1 assume !(1 == mp_add_~i~0 % 256); 27193#L92-1 assume !(2 == mp_add_~i~0 % 256); 27191#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 27190#L94-1 [2021-10-15 20:21:22,789 INFO L793 eck$LassoCheckResult]: Loop: 27190#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 27188#L72-2 assume !!((mp_add_~i~0 % 256 < mp_add_~na~0 % 256 || mp_add_~i~0 % 256 < mp_add_~nb~0 % 256) || 0 != mp_add_~carry~0 % 65536);mp_add_~partial_sum~0 := mp_add_~carry~0;mp_add_~carry~0 := 0; 27186#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 27175#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 27176#L82 assume !(0 == mp_add_~i~0 % 256); 27206#L82-2 assume !(1 == mp_add_~i~0 % 256); 27204#L83-1 assume !(2 == mp_add_~i~0 % 256); 27202#L84-1 assume !(3 == mp_add_~i~0 % 256); 27200#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 27198#L87-1 assume !(0 == mp_add_~i~0 % 256); 27196#L91-1 assume !(1 == mp_add_~i~0 % 256); 27194#L92-1 assume !(2 == mp_add_~i~0 % 256); 27192#L93-1 assume !(3 == mp_add_~i~0 % 256); 27190#L94-1 [2021-10-15 20:21:22,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:21:22,789 INFO L82 PathProgramCache]: Analyzing trace with hash -151906736, now seen corresponding path program 1 times [2021-10-15 20:21:22,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:21:22,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780549863] [2021-10-15 20:21:22,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:21:22,790 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:21:22,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:21:22,827 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:21:22,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:21:22,874 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:21:22,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:21:22,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 5 times [2021-10-15 20:21:22,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:21:22,875 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984288870] [2021-10-15 20:21:22,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:21:22,875 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:21:22,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:21:22,895 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:21:22,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:21:22,899 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:21:22,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:21:22,900 INFO L82 PathProgramCache]: Analyzing trace with hash -611234983, now seen corresponding path program 1 times [2021-10-15 20:21:22,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:21:22,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545148769] [2021-10-15 20:21:22,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:21:22,900 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:21:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:21:23,424 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 83 proven. 12 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-10-15 20:21:23,424 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:21:23,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545148769] [2021-10-15 20:21:23,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545148769] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 20:21:23,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522956810] [2021-10-15 20:21:23,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:21:23,425 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 20:21:23,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:23,426 INFO L229 MonitoredProcess]: Starting monitored process 138 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 20:21:23,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (138)] Waiting until timeout for monitored process [2021-10-15 20:21:23,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:21:23,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-15 20:21:23,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 20:21:24,564 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 91 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-10-15 20:21:24,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [522956810] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 20:21:24,565 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 20:21:24,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 12 [2021-10-15 20:21:24,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709209713] [2021-10-15 20:21:24,776 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 20:21:24,776 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 20:21:24,776 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 20:21:24,776 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 20:21:24,776 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-15 20:21:24,776 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:24,776 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 20:21:24,776 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 20:21:24,777 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration31_Loop [2021-10-15 20:21:24,777 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 20:21:24,777 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 20:21:24,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:21:24,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:21:25,207 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 20:21:25,207 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-15 20:21:25,207 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:25,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:25,209 INFO L229 MonitoredProcess]: Starting monitored process 139 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:25,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (139)] Waiting until timeout for monitored process [2021-10-15 20:21:25,210 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 20:21:25,210 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:21:25,225 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-15 20:21:25,225 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_mp_add_~partial_sum~0=0, ULTIMATE.start_mp_add_~carry~0=0} Honda state: {ULTIMATE.start_mp_add_~partial_sum~0=0, ULTIMATE.start_mp_add_~carry~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-15 20:21:25,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (139)] Ended with exit code 0 [2021-10-15 20:21:25,244 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:25,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:25,245 INFO L229 MonitoredProcess]: Starting monitored process 140 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:25,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (140)] Waiting until timeout for monitored process [2021-10-15 20:21:25,246 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 20:21:25,246 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:21:25,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (140)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:25,308 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:25,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:25,309 INFO L229 MonitoredProcess]: Starting monitored process 141 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:25,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (141)] Waiting until timeout for monitored process [2021-10-15 20:21:25,310 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-15 20:21:25,310 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 20:21:27,416 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-15 20:21:27,420 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (141)] Ended with exit code 0 [2021-10-15 20:21:27,420 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 20:21:27,420 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 20:21:27,420 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 20:21:27,420 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 20:21:27,420 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 20:21:27,420 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:27,420 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 20:21:27,420 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 20:21:27,421 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_1-1.i_Iteration31_Loop [2021-10-15 20:21:27,421 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 20:21:27,421 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 20:21:27,421 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:21:27,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 20:21:27,786 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 20:21:27,786 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 20:21:27,786 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:27,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:27,787 INFO L229 MonitoredProcess]: Starting monitored process 142 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:27,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (142)] Waiting until timeout for monitored process [2021-10-15 20:21:27,789 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 [2021-10-15 20:21:27,796 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:27,796 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:27,796 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:27,796 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:27,796 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:21:27,798 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:21:27,798 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:27,801 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:27,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (142)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:27,821 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:27,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:27,821 INFO L229 MonitoredProcess]: Starting monitored process 143 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:27,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (143)] Waiting until timeout for monitored process [2021-10-15 20:21:27,822 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 [2021-10-15 20:21:27,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:27,829 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:27,830 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:27,830 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:27,830 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 20:21:27,831 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 20:21:27,831 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:27,833 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:27,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (143)] Ended with exit code 0 [2021-10-15 20:21:27,852 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-15 20:21:27,852 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:27,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:27,853 INFO L229 MonitoredProcess]: Starting monitored process 144 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:27,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (144)] Waiting until timeout for monitored process [2021-10-15 20:21:27,854 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 [2021-10-15 20:21:27,861 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:27,861 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:27,862 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:27,862 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:27,862 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-15 20:21:27,864 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-15 20:21:27,864 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:27,868 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:27,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (144)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:27,889 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:27,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:27,890 INFO L229 MonitoredProcess]: Starting monitored process 145 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:27,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (145)] Waiting until timeout for monitored process [2021-10-15 20:21:27,891 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 [2021-10-15 20:21:27,898 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:27,898 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:27,898 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:27,898 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:27,898 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-15 20:21:27,899 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-15 20:21:27,899 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:27,902 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:27,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (145)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:27,923 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-15 20:21:27,923 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:27,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:27,924 INFO L229 MonitoredProcess]: Starting monitored process 146 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:27,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (146)] Waiting until timeout for monitored process [2021-10-15 20:21:27,925 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 [2021-10-15 20:21:27,933 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:27,933 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:27,933 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:27,933 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:27,933 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:21:27,936 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:21:27,936 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:27,941 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:27,961 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (146)] Ended with exit code 0 [2021-10-15 20:21:27,961 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:27,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:27,962 INFO L229 MonitoredProcess]: Starting monitored process 147 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:27,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (147)] Waiting until timeout for monitored process [2021-10-15 20:21:27,963 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 [2021-10-15 20:21:27,971 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:27,971 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:27,971 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:27,971 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:27,971 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:21:27,973 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:21:27,973 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:27,976 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:27,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (147)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:27,996 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-15 20:21:27,996 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:27,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:27,997 INFO L229 MonitoredProcess]: Starting monitored process 148 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:27,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (148)] Waiting until timeout for monitored process [2021-10-15 20:21:27,998 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 [2021-10-15 20:21:28,005 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:28,005 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:28,005 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:28,005 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:28,006 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-15 20:21:28,009 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-15 20:21:28,009 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:28,016 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:28,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (148)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:28,035 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:28,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:28,036 INFO L229 MonitoredProcess]: Starting monitored process 149 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:28,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (149)] Waiting until timeout for monitored process [2021-10-15 20:21:28,037 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 [2021-10-15 20:21:28,044 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 20:21:28,044 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:28,045 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:28,045 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:28,045 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-15 20:21:28,047 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-15 20:21:28,047 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:28,050 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:28,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (149)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:28,070 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-15 20:21:28,070 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:28,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:28,071 INFO L229 MonitoredProcess]: Starting monitored process 150 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:28,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (150)] Waiting until timeout for monitored process [2021-10-15 20:21:28,072 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 [2021-10-15 20:21:28,079 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:28,079 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-15 20:21:28,079 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:28,079 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:28,079 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:28,079 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-15 20:21:28,083 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-15 20:21:28,083 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:28,091 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:28,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (150)] Ended with exit code 0 [2021-10-15 20:21:28,111 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:28,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:28,111 INFO L229 MonitoredProcess]: Starting monitored process 151 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:28,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (151)] Waiting until timeout for monitored process [2021-10-15 20:21:28,113 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 [2021-10-15 20:21:28,120 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:28,120 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-15 20:21:28,120 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:28,120 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:28,120 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:28,120 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-15 20:21:28,121 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-15 20:21:28,121 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:28,125 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:28,145 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (151)] Ended with exit code 0 [2021-10-15 20:21:28,145 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-15 20:21:28,145 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:28,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:28,146 INFO L229 MonitoredProcess]: Starting monitored process 152 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:28,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (152)] Waiting until timeout for monitored process [2021-10-15 20:21:28,147 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 [2021-10-15 20:21:28,155 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:28,155 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-15 20:21:28,155 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:28,155 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:28,155 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:28,155 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:21:28,159 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:21:28,159 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:28,169 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:28,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (152)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:28,188 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:28,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:28,189 INFO L229 MonitoredProcess]: Starting monitored process 153 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:28,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (153)] Waiting until timeout for monitored process [2021-10-15 20:21:28,190 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 [2021-10-15 20:21:28,197 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:28,198 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-15 20:21:28,198 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:28,198 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:28,198 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:28,198 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:21:28,200 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:21:28,200 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:28,205 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:28,224 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (153)] Ended with exit code 0 [2021-10-15 20:21:28,224 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-15 20:21:28,225 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:28,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:28,225 INFO L229 MonitoredProcess]: Starting monitored process 154 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:28,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (154)] Waiting until timeout for monitored process [2021-10-15 20:21:28,226 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 [2021-10-15 20:21:28,234 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:28,234 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-15 20:21:28,234 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:28,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:28,235 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:28,235 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-15 20:21:28,239 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-15 20:21:28,240 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:28,257 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:28,276 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (154)] Ended with exit code 0 [2021-10-15 20:21:28,277 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:28,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:28,277 INFO L229 MonitoredProcess]: Starting monitored process 155 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:28,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (155)] Waiting until timeout for monitored process [2021-10-15 20:21:28,278 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 [2021-10-15 20:21:28,286 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:28,286 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-15 20:21:28,286 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:28,286 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:28,286 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:28,286 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-15 20:21:28,289 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-15 20:21:28,289 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:28,297 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:28,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (155)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:28,316 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-15 20:21:28,316 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:28,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:28,317 INFO L229 MonitoredProcess]: Starting monitored process 156 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:28,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (156)] Waiting until timeout for monitored process [2021-10-15 20:21:28,318 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 [2021-10-15 20:21:28,325 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:28,325 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-15 20:21:28,325 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:28,325 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:28,325 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:28,325 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:21:28,329 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:21:28,329 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:28,338 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:28,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (156)] Ended with exit code 0 [2021-10-15 20:21:28,357 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:28,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:28,358 INFO L229 MonitoredProcess]: Starting monitored process 157 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:28,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (157)] Waiting until timeout for monitored process [2021-10-15 20:21:28,359 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 [2021-10-15 20:21:28,366 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:28,366 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-15 20:21:28,366 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:28,367 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:28,367 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:28,367 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-15 20:21:28,368 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-15 20:21:28,368 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:28,372 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:28,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (157)] Ended with exit code 0 [2021-10-15 20:21:28,391 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-15 20:21:28,391 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:28,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:28,392 INFO L229 MonitoredProcess]: Starting monitored process 158 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:28,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (158)] Waiting until timeout for monitored process [2021-10-15 20:21:28,393 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 [2021-10-15 20:21:28,400 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:28,400 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-15 20:21:28,401 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:28,401 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:28,401 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:28,401 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-15 20:21:28,406 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:21:28,406 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:28,416 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:28,435 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (158)] Ended with exit code 0 [2021-10-15 20:21:28,435 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:21:28,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:21:28,436 INFO L229 MonitoredProcess]: Starting monitored process 159 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:21:28,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (159)] Waiting until timeout for monitored process [2021-10-15 20:21:28,437 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 [2021-10-15 20:21:28,444 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-15 20:21:28,444 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-15 20:21:28,444 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 20:21:28,444 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 20:21:28,444 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 20:21:28,444 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-15 20:21:28,448 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-15 20:21:28,448 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 20:21:28,483 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 20:21:28,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (159)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:28,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:21:28,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-15 20:21:28,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-10-15 20:21:28,509 INFO L87 Difference]: Start difference. First operand 80 states and 82 transitions. cyclomatic complexity: 3 Second operand has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 12 states have internal predecessors, (82), 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) [2021-10-15 20:21:29,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:21:29,412 INFO L93 Difference]: Finished difference Result 71 states and 72 transitions. [2021-10-15 20:21:29,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-15 20:21:29,413 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 72 transitions. [2021-10-15 20:21:29,413 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-15 20:21:29,413 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 0 states and 0 transitions. [2021-10-15 20:21:29,413 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-15 20:21:29,413 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-15 20:21:29,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-15 20:21:29,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:21:29,413 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 20:21:29,413 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 20:21:29,414 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 20:21:29,414 INFO L425 BuchiCegarLoop]: ======== Iteration 32============ [2021-10-15 20:21:29,414 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-15 20:21:29,414 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-15 20:21:29,414 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-15 20:21:29,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.10 08:21:29 BoogieIcfgContainer [2021-10-15 20:21:29,419 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-15 20:21:29,419 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 20:21:29,419 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 20:21:29,419 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 20:21:29,420 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:17:50" (3/4) ... [2021-10-15 20:21:29,423 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-15 20:21:29,423 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 20:21:29,425 INFO L168 Benchmark]: Toolchain (without parser) took 219458.43 ms. Allocated memory was 86.0 MB in the beginning and 283.1 MB in the end (delta: 197.1 MB). Free memory was 47.5 MB in the beginning and 101.8 MB in the end (delta: -54.3 MB). Peak memory consumption was 143.8 MB. Max. memory is 16.1 GB. [2021-10-15 20:21:29,425 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 86.0 MB. Free memory is still 64.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:21:29,426 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.26 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 47.3 MB in the beginning and 79.1 MB in the end (delta: -31.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-15 20:21:29,426 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.49 ms. Allocated memory is still 104.9 MB. Free memory was 79.1 MB in the beginning and 77.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 20:21:29,427 INFO L168 Benchmark]: Boogie Preprocessor took 31.74 ms. Allocated memory is still 104.9 MB. Free memory was 77.2 MB in the beginning and 76.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 20:21:29,427 INFO L168 Benchmark]: RCFGBuilder took 388.74 ms. Allocated memory is still 104.9 MB. Free memory was 75.6 MB in the beginning and 63.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-15 20:21:29,427 INFO L168 Benchmark]: BuchiAutomizer took 218689.30 ms. Allocated memory was 104.9 MB in the beginning and 283.1 MB in the end (delta: 178.3 MB). Free memory was 63.0 MB in the beginning and 102.6 MB in the end (delta: -39.5 MB). Peak memory consumption was 140.1 MB. Max. memory is 16.1 GB. [2021-10-15 20:21:29,428 INFO L168 Benchmark]: Witness Printer took 4.37 ms. Allocated memory is still 283.1 MB. Free memory was 102.6 MB in the beginning and 101.8 MB in the end (delta: 773.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 20:21:29,429 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 86.0 MB. Free memory is still 64.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 298.26 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 47.3 MB in the beginning and 79.1 MB in the end (delta: -31.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.49 ms. Allocated memory is still 104.9 MB. Free memory was 79.1 MB in the beginning and 77.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.74 ms. Allocated memory is still 104.9 MB. Free memory was 77.2 MB in the beginning and 76.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 388.74 ms. Allocated memory is still 104.9 MB. Free memory was 75.6 MB in the beginning and 63.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 218689.30 ms. Allocated memory was 104.9 MB in the beginning and 283.1 MB in the end (delta: 178.3 MB). Free memory was 63.0 MB in the beginning and 102.6 MB in the end (delta: -39.5 MB). Peak memory consumption was 140.1 MB. Max. memory is 16.1 GB. * Witness Printer took 4.37 ms. Allocated memory is still 283.1 MB. Free memory was 102.6 MB in the beginning and 101.8 MB in the end (delta: 773.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 31 terminating modules (31 trivial, 0 deterministic, 0 nondeterministic). 31 modules have a trivial ranking function, the largest among these consists of 15 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 218.6s and 32 iterations. TraceHistogramMax:7. Analysis of lassos took 57.3s. Construction of modules took 149.8s. Büchi inclusion checks took 10.4s. Highest rank in rank-based complementation 0. Minimization of det autom 31. Minimization of nondet autom 0. Automata minimization 359.9ms AutomataMinimizationTime, 30 MinimizatonAttempts, 4534 StatesRemovedByMinimization, 29 NontrivialMinimizations. Non-live state removal took 0.2s Buchi closure took 0.0s. Biggest automaton had 1001 states and ocurred in iteration 23. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1304 SDtfs, 4037 SDslu, 2459 SDs, 0 SdLazy, 8604 SolverSat, 552 SolverUnsat, 9 SolverUnknown, 0 SolverNotchecked, 149829.6ms Time LassoAnalysisResults: nont0 unkn0 SFLI17 SFLT0 conc2 concLT0 SILN0 SILU5 SILI7 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: 38ms VariablesStem: 0 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 11.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-15 20:21:29,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (138)] Ended with exit code 0 [2021-10-15 20:21:29,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:29,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:30,043 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Ended with exit code 0 [2021-10-15 20:21:30,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:30,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:30,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:30,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:31,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-10-15 20:21:31,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:31,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:31,660 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-10-15 20:21:31,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-10-15 20:21:32,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:32,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-15 20:21:32,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce356d3-1d67-4ee6-978c-9bffa622bda9/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...