./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/byte_add_2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/byte_add_2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt --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 0ce8ca4e0deac77c67f93865fe9306c44a834585 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:15:11,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:15:11,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:15:11,177 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:15:11,178 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:15:11,182 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:15:11,193 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:15:11,198 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:15:11,200 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:15:11,208 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:15:11,209 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:15:11,211 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:15:11,211 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:15:11,214 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:15:11,216 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:15:11,218 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:15:11,220 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:15:11,221 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:15:11,226 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:15:11,235 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:15:11,237 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:15:11,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:15:11,242 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:15:11,243 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:15:11,252 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:15:11,252 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:15:11,253 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:15:11,255 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:15:11,255 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:15:11,256 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:15:11,257 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:15:11,258 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:15:11,260 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:15:11,261 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:15:11,263 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:15:11,264 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:15:11,264 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:15:11,264 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:15:11,265 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:15:11,266 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:15:11,267 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:15:11,268 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 00:15:11,316 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:15:11,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:15:11,317 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:15:11,317 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:15:11,318 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:15:11,318 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:15:11,319 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:15:11,319 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:15:11,319 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:15:11,319 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:15:11,320 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:15:11,320 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:15:11,321 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:15:11,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:15:11,321 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:15:11,321 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:15:11,322 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:15:11,322 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:15:11,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:15:11,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:15:11,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:15:11,323 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:15:11,323 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:15:11,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:15:11,323 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:15:11,324 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:15:11,326 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:15:11,326 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:15:11,326 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:15:11,327 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:15:11,327 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:15:11,327 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:15:11,328 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:15:11,328 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_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ce8ca4e0deac77c67f93865fe9306c44a834585 [2021-10-13 00:15:11,597 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:15:11,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:15:11,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:15:11,620 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:15:11,621 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:15:11,622 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/bitvector/byte_add_2-2.i [2021-10-13 00:15:11,695 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/data/527af9294/6436e60e95504d35b2f42cd59d9defaf/FLAGe1adedd64 [2021-10-13 00:15:12,130 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:15:12,131 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/sv-benchmarks/c/bitvector/byte_add_2-2.i [2021-10-13 00:15:12,138 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/data/527af9294/6436e60e95504d35b2f42cd59d9defaf/FLAGe1adedd64 [2021-10-13 00:15:12,510 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/data/527af9294/6436e60e95504d35b2f42cd59d9defaf [2021-10-13 00:15:12,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:15:12,514 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:15:12,515 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:15:12,516 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:15:12,519 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:15:12,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:15:12" (1/1) ... [2021-10-13 00:15:12,521 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dcd0da4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:12, skipping insertion in model container [2021-10-13 00:15:12,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:15:12" (1/1) ... [2021-10-13 00:15:12,528 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:15:12,553 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:15:12,728 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_6b0bb99e-5bff-4ee7-a470-fd19cead8404/sv-benchmarks/c/bitvector/byte_add_2-2.i[863,876] [2021-10-13 00:15:12,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:15:12,768 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:15:12,779 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_6b0bb99e-5bff-4ee7-a470-fd19cead8404/sv-benchmarks/c/bitvector/byte_add_2-2.i[863,876] [2021-10-13 00:15:12,799 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:15:12,812 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:15:12,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:12 WrapperNode [2021-10-13 00:15:12,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:15:12,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:15:12,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:15:12,814 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:15:12,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:12" (1/1) ... [2021-10-13 00:15:12,829 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:12" (1/1) ... [2021-10-13 00:15:12,852 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:15:12,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:15:12,853 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:15:12,853 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:15:12,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:12" (1/1) ... [2021-10-13 00:15:12,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:12" (1/1) ... [2021-10-13 00:15:12,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:12" (1/1) ... [2021-10-13 00:15:12,863 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:12" (1/1) ... [2021-10-13 00:15:12,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:12" (1/1) ... [2021-10-13 00:15:12,874 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:12" (1/1) ... [2021-10-13 00:15:12,875 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:12" (1/1) ... [2021-10-13 00:15:12,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:15:12,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:15:12,879 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:15:12,879 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:15:12,880 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:12" (1/1) ... [2021-10-13 00:15:12,887 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:12,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:12,910 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:12,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:15:12,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:15:12,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:15:12,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:15:12,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:15:13,275 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:15:13,284 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-13 00:15:13,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:15:13 BoogieIcfgContainer [2021-10-13 00:15:13,286 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:15:13,287 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:15:13,287 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:15:13,300 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:15:13,301 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:15:13,301 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:15:12" (1/3) ... [2021-10-13 00:15:13,303 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ac4b2d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:15:13, skipping insertion in model container [2021-10-13 00:15:13,303 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:15:13,303 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:12" (2/3) ... [2021-10-13 00:15:13,303 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ac4b2d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:15:13, skipping insertion in model container [2021-10-13 00:15:13,304 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:15:13,304 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:15:13" (3/3) ... [2021-10-13 00:15:13,305 INFO L389 chiAutomizerObserver]: Analyzing ICFG byte_add_2-2.i [2021-10-13 00:15:13,377 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:15:13,377 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:15:13,377 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:15:13,377 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:15:13,378 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:15:13,378 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:15:13,378 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:15:13,378 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:15:13,401 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) [2021-10-13 00:15:13,418 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 23 [2021-10-13 00:15:13,419 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:15:13,419 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:15:13,426 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:15:13,426 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:13,426 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:15:13,426 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) [2021-10-13 00:15:13,430 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 23 [2021-10-13 00:15:13,430 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:15:13,430 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:15:13,431 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:15:13,431 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:13,436 INFO L791 eck$LassoCheckResult]: Stem: 21#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); 11#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_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~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; 6#L51true assume !(0 == mp_add_~a3~0 % 256); 14#L51-1true mp_add_~nb~0 := 4; 7#L61true assume !(0 == mp_add_~b3~0 % 256); 17#L61-1true mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 12#L72-2true [2021-10-13 00:15:13,437 INFO L793 eck$LassoCheckResult]: Loop: 12#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; 13#L87-1true assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 9#L91-1true assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 10#L92-1true assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 19#L93-1true assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 16#L94-1true mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 12#L72-2true [2021-10-13 00:15:13,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:13,443 INFO L82 PathProgramCache]: Analyzing trace with hash 889938151, now seen corresponding path program 1 times [2021-10-13 00:15:13,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:13,452 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751900763] [2021-10-13 00:15:13,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:13,453 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:13,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:13,570 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:15:13,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:13,660 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:15:13,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:13,663 INFO L82 PathProgramCache]: Analyzing trace with hash 318197182, now seen corresponding path program 1 times [2021-10-13 00:15:13,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:13,663 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281571850] [2021-10-13 00:15:13,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:13,664 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:13,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:13,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:13,740 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:15:13,740 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281571850] [2021-10-13 00:15:13,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281571850] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:13,741 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:13,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:15:13,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975610071] [2021-10-13 00:15:13,746 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:15:13,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:15:13,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:15:13,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:15:13,763 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) [2021-10-13 00:15:13,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:13,907 INFO L93 Difference]: Finished difference Result 64 states and 94 transitions. [2021-10-13 00:15:13,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:15:13,909 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 94 transitions. [2021-10-13 00:15:13,912 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2021-10-13 00:15:13,917 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 56 states and 86 transitions. [2021-10-13 00:15:13,918 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2021-10-13 00:15:13,919 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 56 [2021-10-13 00:15:13,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 86 transitions. [2021-10-13 00:15:13,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:15:13,920 INFO L681 BuchiCegarLoop]: Abstraction has 56 states and 86 transitions. [2021-10-13 00:15:13,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 86 transitions. [2021-10-13 00:15:13,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2021-10-13 00:15:13,953 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) [2021-10-13 00:15:13,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 84 transitions. [2021-10-13 00:15:13,956 INFO L704 BuchiCegarLoop]: Abstraction has 54 states and 84 transitions. [2021-10-13 00:15:13,956 INFO L587 BuchiCegarLoop]: Abstraction has 54 states and 84 transitions. [2021-10-13 00:15:13,956 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:15:13,956 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 84 transitions. [2021-10-13 00:15:13,969 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-10-13 00:15:13,970 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:15:13,970 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:15:13,970 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:13,971 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:13,971 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_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~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 [2021-10-13 00:15:13,971 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 [2021-10-13 00:15:13,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:13,972 INFO L82 PathProgramCache]: Analyzing trace with hash 532072804, now seen corresponding path program 1 times [2021-10-13 00:15:13,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:13,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979543456] [2021-10-13 00:15:13,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:13,973 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:14,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:14,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:14,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:15:14,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979543456] [2021-10-13 00:15:14,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979543456] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:14,224 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:14,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:15:14,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173864261] [2021-10-13 00:15:14,225 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:15:14,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:14,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1939143242, now seen corresponding path program 1 times [2021-10-13 00:15:14,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:14,226 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57873173] [2021-10-13 00:15:14,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:14,226 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:14,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:14,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:14,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:15:14,294 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57873173] [2021-10-13 00:15:14,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57873173] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:14,295 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:14,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:15:14,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218953077] [2021-10-13 00:15:14,295 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:15:14,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:15:14,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:15:14,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:15:14,297 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) [2021-10-13 00:15:14,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:14,620 INFO L93 Difference]: Finished difference Result 149 states and 228 transitions. [2021-10-13 00:15:14,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:15:14,621 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 149 states and 228 transitions. [2021-10-13 00:15:14,626 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 108 [2021-10-13 00:15:14,628 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 149 states to 149 states and 228 transitions. [2021-10-13 00:15:14,628 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 149 [2021-10-13 00:15:14,629 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 149 [2021-10-13 00:15:14,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 149 states and 228 transitions. [2021-10-13 00:15:14,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:15:14,631 INFO L681 BuchiCegarLoop]: Abstraction has 149 states and 228 transitions. [2021-10-13 00:15:14,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states and 228 transitions. [2021-10-13 00:15:14,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 78. [2021-10-13 00:15:14,639 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) [2021-10-13 00:15:14,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 113 transitions. [2021-10-13 00:15:14,641 INFO L704 BuchiCegarLoop]: Abstraction has 78 states and 113 transitions. [2021-10-13 00:15:14,641 INFO L587 BuchiCegarLoop]: Abstraction has 78 states and 113 transitions. [2021-10-13 00:15:14,641 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 00:15:14,641 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states and 113 transitions. [2021-10-13 00:15:14,643 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-10-13 00:15:14,643 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:15:14,643 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:15:14,644 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:14,644 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:14,645 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_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~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 [2021-10-13 00:15:14,645 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 [2021-10-13 00:15:14,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:14,646 INFO L82 PathProgramCache]: Analyzing trace with hash -384676570, now seen corresponding path program 1 times [2021-10-13 00:15:14,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:14,646 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559520591] [2021-10-13 00:15:14,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:14,647 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:14,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:14,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:14,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:15:14,852 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559520591] [2021-10-13 00:15:14,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559520591] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:14,852 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:14,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:15:14,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052304489] [2021-10-13 00:15:14,854 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:15:14,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:14,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1939143242, now seen corresponding path program 2 times [2021-10-13 00:15:14,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:14,855 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959017014] [2021-10-13 00:15:14,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:14,855 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:14,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:14,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:14,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:15:14,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959017014] [2021-10-13 00:15:14,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959017014] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:14,967 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:14,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:15:14,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239882127] [2021-10-13 00:15:14,968 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:15:14,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:15:14,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:15:14,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:15:14,973 INFO L87 Difference]: Start difference. First operand 78 states and 113 transitions. cyclomatic complexity: 37 Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 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) [2021-10-13 00:15:15,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:15,417 INFO L93 Difference]: Finished difference Result 226 states and 344 transitions. [2021-10-13 00:15:15,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 00:15:15,417 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 226 states and 344 transitions. [2021-10-13 00:15:15,422 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 161 [2021-10-13 00:15:15,425 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 226 states to 226 states and 344 transitions. [2021-10-13 00:15:15,425 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 226 [2021-10-13 00:15:15,426 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 226 [2021-10-13 00:15:15,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 226 states and 344 transitions. [2021-10-13 00:15:15,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:15:15,428 INFO L681 BuchiCegarLoop]: Abstraction has 226 states and 344 transitions. [2021-10-13 00:15:15,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states and 344 transitions. [2021-10-13 00:15:15,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 78. [2021-10-13 00:15:15,444 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) [2021-10-13 00:15:15,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 113 transitions. [2021-10-13 00:15:15,448 INFO L704 BuchiCegarLoop]: Abstraction has 78 states and 113 transitions. [2021-10-13 00:15:15,448 INFO L587 BuchiCegarLoop]: Abstraction has 78 states and 113 transitions. [2021-10-13 00:15:15,448 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-13 00:15:15,448 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states and 113 transitions. [2021-10-13 00:15:15,449 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-10-13 00:15:15,450 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:15:15,450 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:15:15,451 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:15,451 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:15,452 INFO L791 eck$LassoCheckResult]: Stem: 669#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); 662#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_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~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; 653#L51 assume 0 == mp_add_~a3~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 655#L53 assume 0 == mp_add_~a2~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 684#L55 assume !(0 == mp_add_~a1~0 % 256); 685#L51-1 mp_add_~nb~0 := 4; 702#L61 assume !(0 == mp_add_~b3~0 % 256); 699#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 697#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; 698#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 717#L75-1 [2021-10-13 00:15:15,452 INFO L793 eck$LassoCheckResult]: Loop: 717#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 715#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; 709#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 708#L91-1 assume !(1 == mp_add_~i~0 % 256); 707#L92-1 assume !(2 == mp_add_~i~0 % 256); 705#L93-1 assume !(3 == mp_add_~i~0 % 256); 703#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 694#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; 686#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 672#L76-2 assume !(1 == mp_add_~i~0 % 256); 673#L77-1 assume !(2 == mp_add_~i~0 % 256); 726#L78-1 assume !(3 == mp_add_~i~0 % 256); 717#L75-1 [2021-10-13 00:15:15,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:15,454 INFO L82 PathProgramCache]: Analyzing trace with hash -2089936051, now seen corresponding path program 1 times [2021-10-13 00:15:15,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:15,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223801854] [2021-10-13 00:15:15,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:15,456 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:15,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:15,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:15,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:15:15,676 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223801854] [2021-10-13 00:15:15,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223801854] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:15,676 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:15,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-13 00:15:15,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203854544] [2021-10-13 00:15:15,677 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:15:15,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:15,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1939143242, now seen corresponding path program 3 times [2021-10-13 00:15:15,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:15,678 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22068216] [2021-10-13 00:15:15,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:15,678 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:15,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:15,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:15,724 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:15:15,724 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22068216] [2021-10-13 00:15:15,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22068216] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:15,725 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:15,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:15:15,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312612780] [2021-10-13 00:15:15,725 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:15:15,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:15:15,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 00:15:15,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:15:15,727 INFO L87 Difference]: Start difference. First operand 78 states and 113 transitions. cyclomatic complexity: 37 Second operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 8 states have internal predecessors, (10), 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) [2021-10-13 00:15:16,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:16,608 INFO L93 Difference]: Finished difference Result 318 states and 453 transitions. [2021-10-13 00:15:16,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-13 00:15:16,609 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 318 states and 453 transitions. [2021-10-13 00:15:16,613 INFO L131 ngComponentsAnalysis]: Automaton has 10 accepting balls. 195 [2021-10-13 00:15:16,617 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 318 states to 318 states and 453 transitions. [2021-10-13 00:15:16,617 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 318 [2021-10-13 00:15:16,618 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 318 [2021-10-13 00:15:16,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 318 states and 453 transitions. [2021-10-13 00:15:16,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:15:16,620 INFO L681 BuchiCegarLoop]: Abstraction has 318 states and 453 transitions. [2021-10-13 00:15:16,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states and 453 transitions. [2021-10-13 00:15:16,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 85. [2021-10-13 00:15:16,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 85 states have (on average 1.4470588235294117) internal successors, (123), 84 states have internal predecessors, (123), 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) [2021-10-13 00:15:16,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 123 transitions. [2021-10-13 00:15:16,636 INFO L704 BuchiCegarLoop]: Abstraction has 85 states and 123 transitions. [2021-10-13 00:15:16,637 INFO L587 BuchiCegarLoop]: Abstraction has 85 states and 123 transitions. [2021-10-13 00:15:16,637 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-13 00:15:16,637 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 85 states and 123 transitions. [2021-10-13 00:15:16,638 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-10-13 00:15:16,638 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:15:16,638 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:15:16,639 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:16,640 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:16,640 INFO L791 eck$LassoCheckResult]: Stem: 1098#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); 1087#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_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~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; 1080#L51 assume 0 == mp_add_~a3~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 1082#L53 assume 0 == mp_add_~a2~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 1111#L55 assume 0 == mp_add_~a1~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 1112#L51-1 mp_add_~nb~0 := 4; 1129#L61 assume !(0 == mp_add_~b3~0 % 256); 1126#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 1124#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; 1125#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 1107#L75-1 [2021-10-13 00:15:16,640 INFO L793 eck$LassoCheckResult]: Loop: 1107#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 1104#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; 1090#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 1077#L91-1 assume !(1 == mp_add_~i~0 % 256); 1078#L92-1 assume !(2 == mp_add_~i~0 % 256); 1079#L93-1 assume !(3 == mp_add_~i~0 % 256); 1096#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 1121#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; 1122#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 1116#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 1103#L76-2 assume !(1 == mp_add_~i~0 % 256); 1099#L77-1 assume !(2 == mp_add_~i~0 % 256); 1100#L78-1 assume !(3 == mp_add_~i~0 % 256); 1107#L75-1 [2021-10-13 00:15:16,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:16,642 INFO L82 PathProgramCache]: Analyzing trace with hash -2147194353, now seen corresponding path program 1 times [2021-10-13 00:15:16,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:16,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868648147] [2021-10-13 00:15:16,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:16,643 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:16,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:16,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:16,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:15:16,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868648147] [2021-10-13 00:15:16,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868648147] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:16,758 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:16,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-13 00:15:16,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612796878] [2021-10-13 00:15:16,759 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:15:16,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:16,759 INFO L82 PathProgramCache]: Analyzing trace with hash 1939143242, now seen corresponding path program 4 times [2021-10-13 00:15:16,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:16,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035393584] [2021-10-13 00:15:16,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:16,760 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:16,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:16,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:16,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:15:16,807 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035393584] [2021-10-13 00:15:16,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035393584] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:16,807 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:16,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:15:16,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068450852] [2021-10-13 00:15:16,808 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:15:16,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:15:16,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 00:15:16,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:15:16,810 INFO L87 Difference]: Start difference. First operand 85 states and 123 transitions. cyclomatic complexity: 40 Second operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 8 states have internal predecessors, (10), 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) [2021-10-13 00:15:17,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:17,861 INFO L93 Difference]: Finished difference Result 293 states and 422 transitions. [2021-10-13 00:15:17,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-13 00:15:17,862 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 293 states and 422 transitions. [2021-10-13 00:15:17,865 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 194 [2021-10-13 00:15:17,868 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 293 states to 293 states and 422 transitions. [2021-10-13 00:15:17,868 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 293 [2021-10-13 00:15:17,869 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 293 [2021-10-13 00:15:17,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 293 states and 422 transitions. [2021-10-13 00:15:17,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:15:17,870 INFO L681 BuchiCegarLoop]: Abstraction has 293 states and 422 transitions. [2021-10-13 00:15:17,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states and 422 transitions. [2021-10-13 00:15:17,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 246. [2021-10-13 00:15:17,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 246 states have (on average 1.4593495934959348) internal successors, (359), 245 states have internal predecessors, (359), 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) [2021-10-13 00:15:17,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 359 transitions. [2021-10-13 00:15:17,885 INFO L704 BuchiCegarLoop]: Abstraction has 246 states and 359 transitions. [2021-10-13 00:15:17,885 INFO L587 BuchiCegarLoop]: Abstraction has 246 states and 359 transitions. [2021-10-13 00:15:17,886 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-13 00:15:17,886 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 246 states and 359 transitions. [2021-10-13 00:15:17,888 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 162 [2021-10-13 00:15:17,888 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:15:17,888 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:15:17,889 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:17,889 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:17,889 INFO L791 eck$LassoCheckResult]: Stem: 1505#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); 1494#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_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~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; 1484#L51 assume 0 == mp_add_~a3~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 1486#L53 assume 0 == mp_add_~a2~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 1520#L55 assume 0 == mp_add_~a1~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 1521#L51-1 mp_add_~nb~0 := 4; 1487#L61 assume !(0 == mp_add_~b3~0 % 256); 1488#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 1495#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; 1496#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 1523#L76 [2021-10-13 00:15:17,889 INFO L793 eck$LassoCheckResult]: Loop: 1523#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 1506#L76-2 assume !(1 == mp_add_~i~0 % 256); 1507#L77-1 assume !(2 == mp_add_~i~0 % 256); 1508#L78-1 assume !(3 == mp_add_~i~0 % 256); 1513#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 1512#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; 1497#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 1491#L91-1 assume !(1 == mp_add_~i~0 % 256); 1492#L92-1 assume !(2 == mp_add_~i~0 % 256); 1493#L93-1 assume !(3 == mp_add_~i~0 % 256); 1503#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 1526#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; 1527#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 1523#L76 [2021-10-13 00:15:17,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:17,890 INFO L82 PathProgramCache]: Analyzing trace with hash -2147194379, now seen corresponding path program 1 times [2021-10-13 00:15:17,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:17,890 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790957407] [2021-10-13 00:15:17,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:17,891 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:17,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:17,906 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:15:17,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:17,926 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:15:17,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:17,926 INFO L82 PathProgramCache]: Analyzing trace with hash -135428754, now seen corresponding path program 5 times [2021-10-13 00:15:17,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:17,927 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026231569] [2021-10-13 00:15:17,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:17,927 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:17,934 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:15:17,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:17,942 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:15:17,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:17,943 INFO L82 PathProgramCache]: Analyzing trace with hash -578820102, now seen corresponding path program 1 times [2021-10-13 00:15:17,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:17,943 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781623038] [2021-10-13 00:15:17,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:17,944 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:17,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:18,006 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:18,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:15:18,007 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781623038] [2021-10-13 00:15:18,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781623038] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:18,007 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:18,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:15:18,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697600422] [2021-10-13 00:15:18,111 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:15:18,111 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:15:18,112 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:15:18,112 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:15:18,112 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:15:18,112 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:18,112 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:15:18,112 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:15:18,113 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_2-2.i_Iteration6_Loop [2021-10-13 00:15:18,113 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:15:18,113 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:15:18,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:15:18,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:15:18,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:15:18,141 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:15:18,373 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:15:18,373 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:15:18,376 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:18,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:18,380 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:18,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-13 00:15:18,395 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:15:18,395 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:15:18,406 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:15:18,406 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_mp_add_~r0~0=0} Honda state: {ULTIMATE.start_mp_add_~r0~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:15:18,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:18,430 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:18,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:18,431 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:18,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-13 00:15:18,441 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:15:18,441 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:15:18,449 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:15:18,450 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_mp_add_~carry~0=0} Honda state: {ULTIMATE.start_mp_add_~carry~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:15:18,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:18,471 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:18,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:18,472 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:18,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-13 00:15:18,476 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:15:18,476 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:15:18,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:18,558 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:18,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:18,569 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:18,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-13 00:15:18,629 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:15:18,629 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:15:19,141 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:15:19,144 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-10-13 00:15:19,145 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:15:19,145 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:15:19,145 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:15:19,145 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:15:19,145 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:15:19,145 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:19,145 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:15:19,145 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:15:19,145 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_2-2.i_Iteration6_Loop [2021-10-13 00:15:19,145 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:15:19,145 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:15:19,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:15:19,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:15:19,156 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:15:19,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:15:19,415 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:15:19,420 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:15:19,422 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:19,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:19,425 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:19,431 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 [2021-10-13 00:15:19,440 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:19,440 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:19,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:19,441 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:19,441 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:15:19,445 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:15:19,445 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:19,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-13 00:15:19,461 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:19,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:19,492 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:19,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:19,497 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:19,502 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 [2021-10-13 00:15:19,511 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:19,511 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:19,511 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:19,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:19,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:15:19,513 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:15:19,513 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:19,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-13 00:15:19,526 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:19,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:19,564 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:19,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:19,565 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:19,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-13 00:15:19,572 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 [2021-10-13 00:15:19,581 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:19,581 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:19,581 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:19,581 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:19,581 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:15:19,586 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:15:19,586 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:19,596 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:19,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-10-13 00:15:19,619 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:19,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:19,620 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:19,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-13 00:15:19,622 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 [2021-10-13 00:15:19,628 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:19,629 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:19,629 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:19,629 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:19,629 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:15:19,632 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:15:19,632 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:19,636 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:19,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:19,657 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-13 00:15:19,657 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:19,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:19,658 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:19,659 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 [2021-10-13 00:15:19,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-13 00:15:19,667 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:19,667 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:19,667 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:19,667 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:19,667 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:15:19,668 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:15:19,668 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:19,700 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:19,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:19,736 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:19,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:19,737 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:19,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-13 00:15:19,752 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:15:19,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:19,761 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:19,761 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:19,761 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:19,761 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:15:19,762 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:15:19,762 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:19,776 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:19,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:19,811 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:19,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:19,812 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:19,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-13 00:15:19,820 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 [2021-10-13 00:15:19,828 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:19,829 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:19,829 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:19,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:19,829 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:15:19,834 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:15:19,834 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:19,846 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:19,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:19,883 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:19,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:19,884 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:19,889 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 [2021-10-13 00:15:19,898 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:19,898 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:19,899 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:19,899 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:19,899 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:15:19,913 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:15:19,913 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:19,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-13 00:15:19,936 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:19,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:19,971 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-13 00:15:19,972 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:19,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:19,973 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:19,978 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 [2021-10-13 00:15:19,987 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:19,987 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:19,988 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:19,988 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:19,988 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:15:19,989 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:15:19,989 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:19,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-13 00:15:20,000 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:20,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:20,036 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:20,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:20,037 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:20,043 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 [2021-10-13 00:15:20,052 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:20,052 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:20,052 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:20,052 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:20,052 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:15:20,053 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:15:20,054 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:20,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-13 00:15:20,064 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:20,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:20,100 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:20,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:20,101 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:20,107 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 [2021-10-13 00:15:20,117 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:20,117 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:20,117 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:20,117 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:20,117 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:15:20,122 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:15:20,122 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:20,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-13 00:15:20,136 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:20,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:20,175 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:20,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:20,176 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:20,184 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 [2021-10-13 00:15:20,193 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:20,193 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:20,193 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:20,193 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:20,194 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:15:20,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-13 00:15:20,200 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:15:20,200 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:20,216 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:20,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:20,251 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-13 00:15:20,251 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:20,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:20,253 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:20,259 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:15:20,268 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:20,268 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:20,268 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:20,268 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:20,268 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:15:20,270 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:15:20,270 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:20,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-13 00:15:20,280 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:20,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:20,311 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:20,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:20,312 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:20,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-13 00:15:20,314 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 [2021-10-13 00:15:20,322 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:20,322 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:20,322 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:20,322 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:20,322 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:15:20,323 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:15:20,323 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:20,333 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:20,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:20,361 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:20,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:20,362 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:20,376 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 [2021-10-13 00:15:20,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-13 00:15:20,384 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:20,384 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:20,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:20,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:20,384 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:15:20,390 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:15:20,390 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:20,405 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:20,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:20,440 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:20,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:20,441 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:20,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-13 00:15:20,446 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 [2021-10-13 00:15:20,453 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:20,453 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:20,454 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:20,454 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:20,454 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:15:20,462 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:15:20,462 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:20,476 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:20,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:20,496 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-13 00:15:20,496 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:20,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:20,498 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:20,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-13 00:15:20,499 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 [2021-10-13 00:15:20,506 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:20,506 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:15:20,506 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:20,506 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:20,506 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:20,506 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:15:20,507 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:15:20,507 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:20,509 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:20,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-10-13 00:15:20,528 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:20,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:20,529 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:20,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-13 00:15:20,530 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 [2021-10-13 00:15:20,537 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:20,537 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:15:20,537 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:20,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:20,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:20,537 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:15:20,538 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:15:20,538 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:20,564 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:20,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:20,592 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:20,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:20,593 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:20,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-13 00:15:20,594 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:15:20,602 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:20,602 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:15:20,602 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:20,602 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:20,602 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:20,602 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:15:20,607 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:15:20,607 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:20,619 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:20,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:20,652 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:20,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:20,657 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:20,661 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 [2021-10-13 00:15:20,670 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:20,670 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:15:20,670 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:20,670 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:20,671 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:20,671 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:15:20,677 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:15:20,677 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:20,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-13 00:15:20,692 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:20,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:20,724 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-13 00:15:20,725 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:20,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:20,729 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:20,731 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 [2021-10-13 00:15:20,740 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:20,740 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-13 00:15:20,740 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:20,740 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:20,741 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:20,741 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:15:20,743 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:15:20,743 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:20,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-13 00:15:20,764 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:20,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:20,797 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:20,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:20,801 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:20,803 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 [2021-10-13 00:15:20,812 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:20,812 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-13 00:15:20,812 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:20,812 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:20,812 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:20,812 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:15:20,819 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:15:20,820 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:20,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-13 00:15:20,832 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:20,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:20,868 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:20,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:20,873 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:20,878 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 [2021-10-13 00:15:20,888 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:20,888 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-13 00:15:20,888 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:20,888 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:20,889 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:20,889 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:15:20,895 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:15:20,895 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:20,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-13 00:15:20,912 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:20,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:20,932 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:20,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:20,933 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:20,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-13 00:15:20,935 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 [2021-10-13 00:15:20,944 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:20,944 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-13 00:15:20,944 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:20,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:20,945 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:20,945 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:15:20,950 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:15:20,950 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:20,980 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:21,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:21,015 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-13 00:15:21,016 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:21,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:21,017 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:21,025 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 [2021-10-13 00:15:21,035 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:21,035 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:15:21,035 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:21,035 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:21,035 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:21,035 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:15:21,037 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:15:21,037 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:21,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-13 00:15:21,052 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:21,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:21,087 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:21,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:21,088 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:21,090 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 [2021-10-13 00:15:21,099 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:21,100 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:15:21,100 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:21,100 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:21,100 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:21,100 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:15:21,102 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:15:21,103 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:21,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-13 00:15:21,116 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:21,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:21,140 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:21,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:21,140 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:21,142 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:15:21,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-13 00:15:21,150 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:21,150 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:15:21,150 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:21,150 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:21,150 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:21,150 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:15:21,159 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:15:21,159 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:21,177 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:21,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:21,199 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:21,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:21,199 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:21,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-13 00:15:21,201 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 [2021-10-13 00:15:21,212 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:21,212 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:15:21,212 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:21,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:21,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:21,212 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:15:21,225 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:15:21,225 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:21,252 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:21,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:21,287 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-13 00:15:21,287 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:21,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:21,288 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:21,293 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 [2021-10-13 00:15:21,302 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:21,302 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:15:21,303 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:21,303 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:21,303 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:21,303 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:15:21,304 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:15:21,304 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:21,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-13 00:15:21,320 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:21,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:21,356 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:21,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:21,361 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:21,363 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 [2021-10-13 00:15:21,372 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:21,372 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:15:21,372 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:21,372 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:21,372 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:21,373 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:15:21,374 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:15:21,374 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:21,400 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:21,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-13 00:15:21,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:21,432 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:21,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:21,433 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:21,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-13 00:15:21,435 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 [2021-10-13 00:15:21,442 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:21,442 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:15:21,442 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:21,442 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:21,442 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:21,442 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:15:21,447 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:15:21,447 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:21,476 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:21,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:21,499 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:21,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:21,500 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:21,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-13 00:15:21,501 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 [2021-10-13 00:15:21,508 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:21,508 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:15:21,509 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:21,509 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:21,509 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:21,509 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:15:21,512 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:15:21,512 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:21,518 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:21,536 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-10-13 00:15:21,536 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-13 00:15:21,536 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:21,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:21,537 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:21,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-13 00:15:21,538 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 [2021-10-13 00:15:21,545 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:21,545 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:15:21,546 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:21,546 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:21,546 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:21,546 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-13 00:15:21,556 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:15:21,556 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:21,568 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:21,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:21,597 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:21,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:21,598 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:21,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-13 00:15:21,600 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 [2021-10-13 00:15:21,608 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:21,609 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:15:21,609 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:21,609 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:21,609 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:21,609 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-13 00:15:21,611 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:15:21,611 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:21,626 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:21,645 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-10-13 00:15:21,645 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:21,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:21,646 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:21,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-13 00:15:21,648 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 [2021-10-13 00:15:21,655 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:21,655 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:15:21,656 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:21,656 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:21,656 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:21,656 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-13 00:15:21,661 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:15:21,661 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:21,681 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:21,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:21,703 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:21,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:21,703 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:21,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-13 00:15:21,705 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 [2021-10-13 00:15:21,720 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:21,721 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:15:21,721 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:21,721 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:21,721 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:21,721 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-13 00:15:21,727 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:15:21,727 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:21,736 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:21,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:21,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:15:21,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:15:21,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:15:21,755 INFO L87 Difference]: Start difference. First operand 246 states and 359 transitions. cyclomatic complexity: 120 Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 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) [2021-10-13 00:15:21,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:21,890 INFO L93 Difference]: Finished difference Result 485 states and 689 transitions. [2021-10-13 00:15:21,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:15:21,890 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 485 states and 689 transitions. [2021-10-13 00:15:21,894 INFO L131 ngComponentsAnalysis]: Automaton has 14 accepting balls. 337 [2021-10-13 00:15:21,898 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 485 states to 485 states and 689 transitions. [2021-10-13 00:15:21,899 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 485 [2021-10-13 00:15:21,899 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 485 [2021-10-13 00:15:21,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 485 states and 689 transitions. [2021-10-13 00:15:21,900 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:15:21,900 INFO L681 BuchiCegarLoop]: Abstraction has 485 states and 689 transitions. [2021-10-13 00:15:21,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states and 689 transitions. [2021-10-13 00:15:21,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 443. [2021-10-13 00:15:21,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 443 states have (on average 1.4311512415349887) internal successors, (634), 442 states have internal predecessors, (634), 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) [2021-10-13 00:15:21,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 634 transitions. [2021-10-13 00:15:21,919 INFO L704 BuchiCegarLoop]: Abstraction has 443 states and 634 transitions. [2021-10-13 00:15:21,919 INFO L587 BuchiCegarLoop]: Abstraction has 443 states and 634 transitions. [2021-10-13 00:15:21,920 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-13 00:15:21,920 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 443 states and 634 transitions. [2021-10-13 00:15:21,923 INFO L131 ngComponentsAnalysis]: Automaton has 11 accepting balls. 296 [2021-10-13 00:15:21,923 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:15:21,923 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:15:21,924 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:21,924 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:21,924 INFO L791 eck$LassoCheckResult]: Stem: 2250#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); 2236#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_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~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; 2227#L51 assume 0 == mp_add_~a3~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 2229#L53 assume 0 == mp_add_~a2~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 2267#L55 assume 0 == mp_add_~a1~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 2242#L51-1 mp_add_~nb~0 := 4; 2243#L61 assume !(0 == mp_add_~b3~0 % 256); 2544#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 2237#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; 2238#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 2270#L76 [2021-10-13 00:15:21,924 INFO L793 eck$LassoCheckResult]: Loop: 2270#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 2272#L76-2 assume !(1 == mp_add_~i~0 % 256); 2624#L77-1 assume !(2 == mp_add_~i~0 % 256); 2623#L78-1 assume !(3 == mp_add_~i~0 % 256); 2622#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 2615#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 2614#L82-2 assume !(1 == mp_add_~i~0 % 256); 2610#L83-1 assume !(2 == mp_add_~i~0 % 256); 2609#L84-1 assume !(3 == mp_add_~i~0 % 256); 2608#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; 2607#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 2605#L91-1 assume !(1 == mp_add_~i~0 % 256); 2606#L92-1 assume !(2 == mp_add_~i~0 % 256); 2578#L93-1 assume !(3 == mp_add_~i~0 % 256); 2577#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 2418#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; 2419#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 2270#L76 [2021-10-13 00:15:21,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:21,925 INFO L82 PathProgramCache]: Analyzing trace with hash -2147194379, now seen corresponding path program 2 times [2021-10-13 00:15:21,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:21,925 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167200105] [2021-10-13 00:15:21,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:21,925 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:21,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:21,939 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:15:21,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:21,956 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:15:21,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:21,957 INFO L82 PathProgramCache]: Analyzing trace with hash 113218786, now seen corresponding path program 1 times [2021-10-13 00:15:21,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:21,957 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432367052] [2021-10-13 00:15:21,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:21,957 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:21,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:21,964 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:15:21,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:21,971 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:15:21,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:21,972 INFO L82 PathProgramCache]: Analyzing trace with hash 1074123118, now seen corresponding path program 1 times [2021-10-13 00:15:21,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:21,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341672426] [2021-10-13 00:15:21,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:21,973 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:21,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:22,104 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:22,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:15:22,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341672426] [2021-10-13 00:15:22,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341672426] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:15:22,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16908800] [2021-10-13 00:15:22,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:22,105 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:15:22,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:22,106 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:15:22,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2021-10-13 00:15:22,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:22,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-13 00:15:22,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:15:24,390 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:24,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16908800] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:24,391 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:15:24,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2021-10-13 00:15:24,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401809051] [2021-10-13 00:15:24,532 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:15:24,532 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:15:24,532 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:15:24,532 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:15:24,532 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:15:24,532 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:24,532 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:15:24,532 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:15:24,532 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_2-2.i_Iteration7_Loop [2021-10-13 00:15:24,532 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:15:24,532 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:15:24,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:15:24,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:15:24,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:15:24,549 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:15:24,810 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:15:24,810 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:15:24,810 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:24,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:24,811 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:24,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-13 00:15:24,813 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:15:24,813 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:15:24,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:24,858 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:24,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:24,859 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:24,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-13 00:15:24,867 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:15:24,867 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:15:26,115 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:15:26,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:26,118 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:15:26,119 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:15:26,119 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:15:26,119 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:15:26,119 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:15:26,119 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:26,119 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:15:26,119 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:15:26,119 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_2-2.i_Iteration7_Loop [2021-10-13 00:15:26,119 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:15:26,119 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:15:26,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:15:26,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:15:26,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:15:26,141 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:15:26,438 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:15:26,438 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:15:26,438 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:26,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:26,441 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:26,445 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 [2021-10-13 00:15:26,454 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:26,454 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:26,455 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:26,455 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:26,455 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:15:26,457 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:15:26,457 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:26,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-13 00:15:26,472 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:26,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2021-10-13 00:15:26,496 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:26,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:26,497 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:26,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-13 00:15:26,500 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 [2021-10-13 00:15:26,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:26,507 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:26,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:26,507 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:26,507 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:15:26,509 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:15:26,510 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:26,513 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:26,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:26,532 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:26,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:26,532 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:26,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-13 00:15:26,534 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 [2021-10-13 00:15:26,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:26,541 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:26,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:26,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:26,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:15:26,541 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:15:26,541 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:26,542 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:26,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-10-13 00:15:26,561 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:26,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:26,562 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:26,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-13 00:15:26,564 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 [2021-10-13 00:15:26,571 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:26,571 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:26,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:26,571 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:26,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:15:26,571 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:15:26,571 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:26,572 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:26,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:26,591 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-13 00:15:26,592 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:26,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:26,592 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:26,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-13 00:15:26,593 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 [2021-10-13 00:15:26,601 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:26,601 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:26,601 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:26,601 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:26,601 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:15:26,604 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:15:26,604 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:26,628 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:26,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:26,661 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:26,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:26,673 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:26,677 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 [2021-10-13 00:15:26,686 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:26,686 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:26,687 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:26,687 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:26,687 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:15:26,691 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:15:26,691 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:26,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-13 00:15:26,704 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:26,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:26,737 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:26,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:26,738 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:26,740 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 [2021-10-13 00:15:26,749 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:26,749 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:26,750 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:26,750 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:26,750 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:15:26,750 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:15:26,750 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:26,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-13 00:15:26,772 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:26,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:26,804 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:26,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:26,807 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:26,809 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 [2021-10-13 00:15:26,818 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:26,818 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:26,818 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:26,818 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:26,818 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:15:26,819 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:15:26,819 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:26,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-13 00:15:26,828 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:26,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:26,860 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-13 00:15:26,861 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:26,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:26,862 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:26,864 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 [2021-10-13 00:15:26,873 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:26,873 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:26,874 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:26,874 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:26,874 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:15:26,878 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:15:26,878 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:26,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-13 00:15:26,892 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:26,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:26,924 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:26,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:26,925 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:26,927 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 [2021-10-13 00:15:26,938 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:26,938 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:26,938 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:26,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:26,939 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:15:26,944 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:15:26,944 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:26,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-10-13 00:15:26,958 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:26,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:26,991 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:26,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:26,992 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:26,994 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 [2021-10-13 00:15:27,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:27,003 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:27,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:27,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:27,003 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:15:27,004 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:15:27,004 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:27,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-13 00:15:27,016 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:27,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:27,049 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:27,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:27,050 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:27,053 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 [2021-10-13 00:15:27,062 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:27,062 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:27,062 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:27,062 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:27,062 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:15:27,063 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:15:27,063 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:27,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-13 00:15:27,072 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:27,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:27,105 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-13 00:15:27,105 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:27,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:27,106 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:27,116 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 [2021-10-13 00:15:27,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-13 00:15:27,123 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:27,124 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:27,124 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:27,124 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:27,124 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:15:27,131 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:15:27,132 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:27,138 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:27,160 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2021-10-13 00:15:27,160 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:27,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:27,161 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:27,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-13 00:15:27,162 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 [2021-10-13 00:15:27,169 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:27,169 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:27,170 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:27,170 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:27,170 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:15:27,177 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:15:27,177 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:27,200 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:27,221 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2021-10-13 00:15:27,221 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:27,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:27,222 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:27,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-10-13 00:15:27,223 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 [2021-10-13 00:15:27,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:27,230 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:27,231 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:27,231 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:27,231 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:15:27,232 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:15:27,232 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:27,264 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:27,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:27,296 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:27,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:27,297 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:27,305 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 [2021-10-13 00:15:27,314 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:27,314 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:27,314 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:27,314 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:27,314 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:15:27,315 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:15:27,316 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:27,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-10-13 00:15:27,336 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:27,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:27,368 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-13 00:15:27,368 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:27,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:27,369 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:27,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-10-13 00:15:27,373 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 [2021-10-13 00:15:27,380 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:27,380 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:15:27,381 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:27,381 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:27,381 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:27,381 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:15:27,384 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:15:27,385 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:27,416 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:27,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:27,449 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:27,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:27,450 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:27,457 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 [2021-10-13 00:15:27,466 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:27,466 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:15:27,466 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:27,466 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:27,466 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:27,467 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:15:27,471 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:15:27,471 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:27,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-10-13 00:15:27,488 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:27,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:27,521 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:27,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:27,525 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:27,529 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 [2021-10-13 00:15:27,538 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:27,538 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:15:27,538 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:27,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:27,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:27,538 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:15:27,539 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:15:27,539 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:27,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-10-13 00:15:27,560 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:27,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:27,592 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:27,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:27,593 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:27,598 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 [2021-10-13 00:15:27,608 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:27,608 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:15:27,608 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:27,608 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:27,608 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:27,608 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:15:27,610 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:15:27,610 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:27,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-10-13 00:15:27,620 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:27,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:27,652 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-13 00:15:27,652 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:27,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:27,653 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:27,654 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:15:27,664 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:27,664 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-13 00:15:27,664 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:27,664 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:27,664 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:27,664 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:15:27,670 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:15:27,670 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:27,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-10-13 00:15:27,689 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:27,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:27,720 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:27,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:27,721 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:27,723 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:15:27,732 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:27,732 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-13 00:15:27,732 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:27,732 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:27,732 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:27,733 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:15:27,739 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:15:27,740 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:27,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-10-13 00:15:27,760 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:27,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:27,792 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:27,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:27,793 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:27,795 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 [2021-10-13 00:15:27,804 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:27,804 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-13 00:15:27,804 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:27,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:27,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:27,804 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:15:27,806 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:15:27,806 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:27,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-10-13 00:15:27,816 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:27,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:27,851 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:27,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:27,852 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:27,854 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 [2021-10-13 00:15:27,864 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:27,864 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-13 00:15:27,864 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:27,864 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:27,864 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:27,864 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:15:27,865 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:15:27,865 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:27,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-10-13 00:15:27,870 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:27,889 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2021-10-13 00:15:27,889 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-13 00:15:27,889 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:27,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:27,890 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:27,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-10-13 00:15:27,891 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 [2021-10-13 00:15:27,899 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:27,899 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:15:27,899 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:27,899 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:27,899 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:27,900 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:15:27,906 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:15:27,906 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:27,930 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:27,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2021-10-13 00:15:27,960 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:27,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:27,960 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:27,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-10-13 00:15:27,962 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 [2021-10-13 00:15:27,969 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:27,969 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:15:27,970 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:27,970 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:27,970 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:27,970 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:15:27,979 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:15:27,979 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:27,995 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:28,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:28,015 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:28,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:28,015 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:28,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-10-13 00:15:28,017 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 [2021-10-13 00:15:28,024 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:28,024 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:15:28,024 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:28,024 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:28,025 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:28,025 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:15:28,026 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:15:28,026 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:28,029 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:28,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:28,049 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:28,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:28,050 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:28,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-10-13 00:15:28,051 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 [2021-10-13 00:15:28,059 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:28,059 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:15:28,059 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:28,059 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:28,059 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:28,059 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:15:28,060 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:15:28,060 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:28,064 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:28,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:28,083 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-13 00:15:28,083 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:28,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:28,084 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:28,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2021-10-13 00:15:28,085 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 [2021-10-13 00:15:28,092 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:28,092 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:15:28,092 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:28,092 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:28,092 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:28,092 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:15:28,096 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:15:28,096 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:28,103 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:28,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Ended with exit code 0 [2021-10-13 00:15:28,122 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:28,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:28,123 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:28,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-10-13 00:15:28,124 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 [2021-10-13 00:15:28,131 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:28,131 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:15:28,131 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:28,131 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:28,131 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:28,131 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:15:28,137 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:15:28,137 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:28,152 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:28,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Ended with exit code 0 [2021-10-13 00:15:28,172 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:28,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:28,173 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:28,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2021-10-13 00:15:28,174 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:15:28,181 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:28,181 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:15:28,181 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:28,181 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:28,181 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:28,181 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:15:28,182 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:15:28,182 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:28,184 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:28,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Ended with exit code 0 [2021-10-13 00:15:28,208 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:28,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:28,209 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:28,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2021-10-13 00:15:28,210 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:15:28,218 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:28,218 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:15:28,218 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:28,218 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:28,218 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:28,218 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:15:28,219 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:15:28,219 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:28,221 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:28,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Ended with exit code 0 [2021-10-13 00:15:28,240 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-13 00:15:28,240 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:28,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:28,241 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:28,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2021-10-13 00:15:28,242 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 [2021-10-13 00:15:28,250 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:28,250 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:15:28,250 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:28,250 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:28,250 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:28,250 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-13 00:15:28,255 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:15:28,255 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:28,280 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:28,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:28,313 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:28,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:28,314 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:28,321 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 [2021-10-13 00:15:28,331 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:28,331 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:15:28,331 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:28,331 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:28,331 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:28,331 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-13 00:15:28,340 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:15:28,340 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:28,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2021-10-13 00:15:28,360 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:28,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:28,394 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:28,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:28,395 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:28,397 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 [2021-10-13 00:15:28,406 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:28,407 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:15:28,407 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:28,407 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:28,407 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:28,407 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-13 00:15:28,408 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:15:28,408 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:28,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2021-10-13 00:15:28,420 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:28,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:28,453 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:28,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:28,457 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:28,460 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 [2021-10-13 00:15:28,470 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:28,470 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:15:28,470 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:28,470 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:28,470 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:28,470 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-13 00:15:28,472 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:15:28,472 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:28,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2021-10-13 00:15:28,484 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:28,510 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Ended with exit code 0 [2021-10-13 00:15:28,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:15:28,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 00:15:28,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-10-13 00:15:28,511 INFO L87 Difference]: Start difference. First operand 443 states and 634 transitions. cyclomatic complexity: 202 Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 8 states have internal predecessors, (27), 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) [2021-10-13 00:15:31,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:31,585 INFO L93 Difference]: Finished difference Result 487 states and 688 transitions. [2021-10-13 00:15:31,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 00:15:31,586 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 487 states and 688 transitions. [2021-10-13 00:15:31,590 INFO L131 ngComponentsAnalysis]: Automaton has 12 accepting balls. 340 [2021-10-13 00:15:31,594 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 487 states to 487 states and 688 transitions. [2021-10-13 00:15:31,594 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 487 [2021-10-13 00:15:31,595 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 487 [2021-10-13 00:15:31,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 487 states and 688 transitions. [2021-10-13 00:15:31,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:15:31,596 INFO L681 BuchiCegarLoop]: Abstraction has 487 states and 688 transitions. [2021-10-13 00:15:31,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states and 688 transitions. [2021-10-13 00:15:31,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 484. [2021-10-13 00:15:31,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 484 states have (on average 1.415289256198347) internal successors, (685), 483 states have internal predecessors, (685), 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) [2021-10-13 00:15:31,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 685 transitions. [2021-10-13 00:15:31,609 INFO L704 BuchiCegarLoop]: Abstraction has 484 states and 685 transitions. [2021-10-13 00:15:31,610 INFO L587 BuchiCegarLoop]: Abstraction has 484 states and 685 transitions. [2021-10-13 00:15:31,610 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-13 00:15:31,610 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 484 states and 685 transitions. [2021-10-13 00:15:31,613 INFO L131 ngComponentsAnalysis]: Automaton has 12 accepting balls. 337 [2021-10-13 00:15:31,613 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:15:31,613 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:15:31,614 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:31,614 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:31,615 INFO L791 eck$LassoCheckResult]: Stem: 3275#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); 3265#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_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~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; 3255#L51 assume 0 == mp_add_~a3~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 3257#L53 assume 0 == mp_add_~a2~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 3288#L55 assume 0 == mp_add_~a1~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 3269#L51-1 mp_add_~nb~0 := 4; 3258#L61 assume !(0 == mp_add_~b3~0 % 256); 3259#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 3263#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; 3264#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 3710#L76 [2021-10-13 00:15:31,615 INFO L793 eck$LassoCheckResult]: Loop: 3710#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 3709#L76-2 assume !(1 == mp_add_~i~0 % 256); 3708#L77-1 assume !(2 == mp_add_~i~0 % 256); 3707#L78-1 assume !(3 == mp_add_~i~0 % 256); 3294#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 3295#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 3731#L82-2 assume !(1 == mp_add_~i~0 % 256); 3729#L83-1 assume !(2 == mp_add_~i~0 % 256); 3728#L84-1 assume !(3 == mp_add_~i~0 % 256); 3727#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; 3726#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 3721#L91-1 assume !(1 == mp_add_~i~0 % 256); 3725#L92-1 assume !(2 == mp_add_~i~0 % 256); 3724#L93-1 assume !(3 == mp_add_~i~0 % 256); 3723#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 3722#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; 3720#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 3718#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 3717#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; 3716#L87-1 assume !(0 == mp_add_~i~0 % 256); 3715#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 3251#L92-1 assume !(2 == mp_add_~i~0 % 256); 3252#L93-1 assume !(3 == mp_add_~i~0 % 256); 3272#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 3575#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; 3576#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 3710#L76 [2021-10-13 00:15:31,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:31,615 INFO L82 PathProgramCache]: Analyzing trace with hash -2147194379, now seen corresponding path program 3 times [2021-10-13 00:15:31,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:31,616 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130432855] [2021-10-13 00:15:31,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:31,616 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:31,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:31,630 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:15:31,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:31,646 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:15:31,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:31,646 INFO L82 PathProgramCache]: Analyzing trace with hash -1270981275, now seen corresponding path program 1 times [2021-10-13 00:15:31,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:31,647 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849599744] [2021-10-13 00:15:31,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:31,647 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:31,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:31,689 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:31,689 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:15:31,689 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849599744] [2021-10-13 00:15:31,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849599744] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:31,690 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:31,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:15:31,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847055017] [2021-10-13 00:15:31,690 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:15:31,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:15:31,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:15:31,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:15:31,691 INFO L87 Difference]: Start difference. First operand 484 states and 685 transitions. cyclomatic complexity: 213 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) [2021-10-13 00:15:31,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:31,758 INFO L93 Difference]: Finished difference Result 839 states and 1233 transitions. [2021-10-13 00:15:31,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:15:31,759 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 839 states and 1233 transitions. [2021-10-13 00:15:31,766 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 692 [2021-10-13 00:15:31,774 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 839 states to 839 states and 1233 transitions. [2021-10-13 00:15:31,774 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 839 [2021-10-13 00:15:31,775 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 839 [2021-10-13 00:15:31,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 839 states and 1233 transitions. [2021-10-13 00:15:31,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:15:31,777 INFO L681 BuchiCegarLoop]: Abstraction has 839 states and 1233 transitions. [2021-10-13 00:15:31,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states and 1233 transitions. [2021-10-13 00:15:31,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 696. [2021-10-13 00:15:31,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 696 states have (on average 1.4669540229885059) internal successors, (1021), 695 states have internal predecessors, (1021), 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) [2021-10-13 00:15:31,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 1021 transitions. [2021-10-13 00:15:31,797 INFO L704 BuchiCegarLoop]: Abstraction has 696 states and 1021 transitions. [2021-10-13 00:15:31,797 INFO L587 BuchiCegarLoop]: Abstraction has 696 states and 1021 transitions. [2021-10-13 00:15:31,797 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-13 00:15:31,797 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 696 states and 1021 transitions. [2021-10-13 00:15:31,801 INFO L131 ngComponentsAnalysis]: Automaton has 12 accepting balls. 549 [2021-10-13 00:15:31,802 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:15:31,802 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:15:31,803 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:31,803 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:31,803 INFO L791 eck$LassoCheckResult]: Stem: 4606#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); 4595#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_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~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; 4585#L51 assume 0 == mp_add_~a3~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 4587#L53 assume 0 == mp_add_~a2~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 4623#L55 assume 0 == mp_add_~a1~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 4599#L51-1 mp_add_~nb~0 := 4; 4600#L61 assume !(0 == mp_add_~b3~0 % 256); 5127#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 5154#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; 5153#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 5050#L76 [2021-10-13 00:15:31,803 INFO L793 eck$LassoCheckResult]: Loop: 5050#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 5152#L76-2 assume !(1 == mp_add_~i~0 % 256); 5151#L77-1 assume !(2 == mp_add_~i~0 % 256); 5150#L78-1 assume !(3 == mp_add_~i~0 % 256); 5149#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 5148#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 5136#L82-2 assume !(1 == mp_add_~i~0 % 256); 5147#L83-1 assume !(2 == mp_add_~i~0 % 256); 5108#L84-1 assume !(3 == mp_add_~i~0 % 256); 5109#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; 5146#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 5083#L91-1 assume !(1 == mp_add_~i~0 % 256); 5144#L92-1 assume !(2 == mp_add_~i~0 % 256); 5143#L93-1 assume !(3 == mp_add_~i~0 % 256); 5106#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 5107#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; 5027#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 5028#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 5142#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 5011#L87-1 assume !(0 == mp_add_~i~0 % 256); 4875#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 4870#L92-1 assume !(2 == mp_add_~i~0 % 256); 4866#L93-1 assume !(3 == mp_add_~i~0 % 256); 4865#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 5123#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; 5049#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 5050#L76 [2021-10-13 00:15:31,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:31,804 INFO L82 PathProgramCache]: Analyzing trace with hash -2147194379, now seen corresponding path program 4 times [2021-10-13 00:15:31,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:31,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808699834] [2021-10-13 00:15:31,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:31,805 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:31,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:31,817 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:15:31,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:31,831 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:15:31,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:31,832 INFO L82 PathProgramCache]: Analyzing trace with hash -2080327901, now seen corresponding path program 1 times [2021-10-13 00:15:31,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:31,832 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447479223] [2021-10-13 00:15:31,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:31,833 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:31,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:31,893 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:31,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:15:31,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447479223] [2021-10-13 00:15:31,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447479223] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:31,894 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:31,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:15:31,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572088091] [2021-10-13 00:15:31,894 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:15:31,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:15:31,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:15:31,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:15:31,895 INFO L87 Difference]: Start difference. First operand 696 states and 1021 transitions. cyclomatic complexity: 337 Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 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) [2021-10-13 00:15:32,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:32,153 INFO L93 Difference]: Finished difference Result 1446 states and 2057 transitions. [2021-10-13 00:15:32,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:15:32,153 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1446 states and 2057 transitions. [2021-10-13 00:15:32,165 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 1229 [2021-10-13 00:15:32,177 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1446 states to 1446 states and 2057 transitions. [2021-10-13 00:15:32,177 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1446 [2021-10-13 00:15:32,179 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1446 [2021-10-13 00:15:32,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1446 states and 2057 transitions. [2021-10-13 00:15:32,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:15:32,182 INFO L681 BuchiCegarLoop]: Abstraction has 1446 states and 2057 transitions. [2021-10-13 00:15:32,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1446 states and 2057 transitions. [2021-10-13 00:15:32,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1446 to 1120. [2021-10-13 00:15:32,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1120 states, 1120 states have (on average 1.4526785714285715) internal successors, (1627), 1119 states have internal predecessors, (1627), 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) [2021-10-13 00:15:32,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 1627 transitions. [2021-10-13 00:15:32,214 INFO L704 BuchiCegarLoop]: Abstraction has 1120 states and 1627 transitions. [2021-10-13 00:15:32,214 INFO L587 BuchiCegarLoop]: Abstraction has 1120 states and 1627 transitions. [2021-10-13 00:15:32,214 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-13 00:15:32,214 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1120 states and 1627 transitions. [2021-10-13 00:15:32,221 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 955 [2021-10-13 00:15:32,221 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:15:32,222 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:15:32,226 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:32,226 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:32,227 INFO L791 eck$LassoCheckResult]: Stem: 6761#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); 6749#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_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~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; 6738#L51 assume 0 == mp_add_~a3~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 6740#L53 assume 0 == mp_add_~a2~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 6779#L55 assume 0 == mp_add_~a1~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 6780#L51-1 mp_add_~nb~0 := 4; 6741#L61 assume !(0 == mp_add_~b3~0 % 256); 6742#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 6758#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; 7685#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 6951#L76 [2021-10-13 00:15:32,228 INFO L793 eck$LassoCheckResult]: Loop: 6951#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 7684#L76-2 assume !(1 == mp_add_~i~0 % 256); 7683#L77-1 assume !(2 == mp_add_~i~0 % 256); 7682#L78-1 assume !(3 == mp_add_~i~0 % 256); 7681#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 7680#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 7001#L82-2 assume !(1 == mp_add_~i~0 % 256); 7679#L83-1 assume !(2 == mp_add_~i~0 % 256); 7678#L84-1 assume !(3 == mp_add_~i~0 % 256); 7264#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; 7265#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 7626#L91-1 assume !(1 == mp_add_~i~0 % 256); 7692#L92-1 assume !(2 == mp_add_~i~0 % 256); 7691#L93-1 assume !(3 == mp_add_~i~0 % 256); 7690#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 6747#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; 6748#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 6782#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 7693#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 7672#L87-1 assume !(0 == mp_add_~i~0 % 256); 7630#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 7603#L92-1 assume !(2 == mp_add_~i~0 % 256); 7622#L93-1 assume !(3 == mp_add_~i~0 % 256); 7619#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 6863#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; 6864#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 6934#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 6933#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 6921#L87-1 assume !(0 == mp_add_~i~0 % 256); 6922#L91-1 assume !(1 == mp_add_~i~0 % 256); 7601#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 7600#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 6873#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 6874#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; 7023#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 6951#L76 [2021-10-13 00:15:32,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:32,229 INFO L82 PathProgramCache]: Analyzing trace with hash -2147194379, now seen corresponding path program 5 times [2021-10-13 00:15:32,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:32,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979722909] [2021-10-13 00:15:32,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:32,230 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:32,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:32,256 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:15:32,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:32,278 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:15:32,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:32,279 INFO L82 PathProgramCache]: Analyzing trace with hash 718808960, now seen corresponding path program 1 times [2021-10-13 00:15:32,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:32,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2942924] [2021-10-13 00:15:32,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:32,280 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:32,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:32,323 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-10-13 00:15:32,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:15:32,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2942924] [2021-10-13 00:15:32,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2942924] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:32,323 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:32,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:15:32,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284186120] [2021-10-13 00:15:32,324 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:15:32,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:15:32,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:15:32,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:15:32,325 INFO L87 Difference]: Start difference. First operand 1120 states and 1627 transitions. cyclomatic complexity: 523 Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 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) [2021-10-13 00:15:32,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:32,417 INFO L93 Difference]: Finished difference Result 1329 states and 1948 transitions. [2021-10-13 00:15:32,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:15:32,418 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1329 states and 1948 transitions. [2021-10-13 00:15:32,428 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 1162 [2021-10-13 00:15:32,440 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1329 states to 1329 states and 1948 transitions. [2021-10-13 00:15:32,440 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1329 [2021-10-13 00:15:32,442 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1329 [2021-10-13 00:15:32,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1329 states and 1948 transitions. [2021-10-13 00:15:32,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:15:32,445 INFO L681 BuchiCegarLoop]: Abstraction has 1329 states and 1948 transitions. [2021-10-13 00:15:32,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1329 states and 1948 transitions. [2021-10-13 00:15:32,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1329 to 1203. [2021-10-13 00:15:32,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1203 states, 1203 states have (on average 1.4738154613466334) internal successors, (1773), 1202 states have internal predecessors, (1773), 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) [2021-10-13 00:15:32,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1203 states to 1203 states and 1773 transitions. [2021-10-13 00:15:32,510 INFO L704 BuchiCegarLoop]: Abstraction has 1203 states and 1773 transitions. [2021-10-13 00:15:32,510 INFO L587 BuchiCegarLoop]: Abstraction has 1203 states and 1773 transitions. [2021-10-13 00:15:32,510 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-13 00:15:32,511 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1203 states and 1773 transitions. [2021-10-13 00:15:32,518 INFO L131 ngComponentsAnalysis]: Automaton has 14 accepting balls. 1041 [2021-10-13 00:15:32,518 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:15:32,518 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:15:32,519 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:32,520 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] [2021-10-13 00:15:32,520 INFO L791 eck$LassoCheckResult]: Stem: 9216#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); 9204#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_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~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; 9193#L51 assume 0 == mp_add_~a3~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 9195#L53 assume 0 == mp_add_~a2~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 9233#L55 assume 0 == mp_add_~a1~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 9234#L51-1 mp_add_~nb~0 := 4; 9382#L61 assume !(0 == mp_add_~b3~0 % 256); 9383#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 9476#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; 9475#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 9429#L76 [2021-10-13 00:15:32,520 INFO L793 eck$LassoCheckResult]: Loop: 9429#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 9470#L76-2 assume !(1 == mp_add_~i~0 % 256); 9469#L77-1 assume !(2 == mp_add_~i~0 % 256); 9468#L78-1 assume !(3 == mp_add_~i~0 % 256); 9467#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 9372#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 9373#L82-2 assume !(1 == mp_add_~i~0 % 256); 9365#L83-1 assume !(2 == mp_add_~i~0 % 256); 9366#L84-1 assume !(3 == mp_add_~i~0 % 256); 9342#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 9344#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 9272#L91-1 assume !(1 == mp_add_~i~0 % 256); 9273#L92-1 assume !(2 == mp_add_~i~0 % 256); 9264#L93-1 assume !(3 == mp_add_~i~0 % 256); 9265#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 9256#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; 9257#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 9495#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 9492#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 9493#L87-1 assume !(0 == mp_add_~i~0 % 256); 9306#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 9307#L92-1 assume !(2 == mp_add_~i~0 % 256); 9302#L93-1 assume !(3 == mp_add_~i~0 % 256); 9303#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 9297#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; 9298#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 9426#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 9487#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; 9483#L87-1 assume !(0 == mp_add_~i~0 % 256); 9481#L91-1 assume !(1 == mp_add_~i~0 % 256); 9479#L92-1 assume !(2 == mp_add_~i~0 % 256); 9477#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 9447#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 9446#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; 9428#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 9429#L76 [2021-10-13 00:15:32,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:32,521 INFO L82 PathProgramCache]: Analyzing trace with hash -2147194379, now seen corresponding path program 6 times [2021-10-13 00:15:32,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:32,521 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728168481] [2021-10-13 00:15:32,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:32,521 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:32,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:32,538 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:15:32,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:32,569 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:15:32,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:32,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1592042242, now seen corresponding path program 1 times [2021-10-13 00:15:32,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:32,575 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968359993] [2021-10-13 00:15:32,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:32,576 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:32,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:32,653 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:32,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:15:32,653 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968359993] [2021-10-13 00:15:32,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968359993] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:15:32,654 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632176139] [2021-10-13 00:15:32,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:32,654 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:15:32,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:32,655 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:15:32,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2021-10-13 00:15:32,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:32,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 00:15:32,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:15:32,868 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-13 00:15:32,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632176139] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:15:32,868 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:15:32,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2021-10-13 00:15:32,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355573567] [2021-10-13 00:15:32,869 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:15:32,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:15:32,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 00:15:32,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:15:32,870 INFO L87 Difference]: Start difference. First operand 1203 states and 1773 transitions. cyclomatic complexity: 584 Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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) [2021-10-13 00:15:33,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:33,530 INFO L93 Difference]: Finished difference Result 2157 states and 2828 transitions. [2021-10-13 00:15:33,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-13 00:15:33,531 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2157 states and 2828 transitions. [2021-10-13 00:15:33,547 INFO L131 ngComponentsAnalysis]: Automaton has 11 accepting balls. 1930 [2021-10-13 00:15:33,563 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2157 states to 2145 states and 2816 transitions. [2021-10-13 00:15:33,563 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2145 [2021-10-13 00:15:33,566 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2145 [2021-10-13 00:15:33,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2145 states and 2816 transitions. [2021-10-13 00:15:33,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:15:33,570 INFO L681 BuchiCegarLoop]: Abstraction has 2145 states and 2816 transitions. [2021-10-13 00:15:33,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2145 states and 2816 transitions. [2021-10-13 00:15:33,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2145 to 1376. [2021-10-13 00:15:33,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1376 states, 1376 states have (on average 1.3844476744186047) internal successors, (1905), 1375 states have internal predecessors, (1905), 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) [2021-10-13 00:15:33,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 1905 transitions. [2021-10-13 00:15:33,614 INFO L704 BuchiCegarLoop]: Abstraction has 1376 states and 1905 transitions. [2021-10-13 00:15:33,614 INFO L587 BuchiCegarLoop]: Abstraction has 1376 states and 1905 transitions. [2021-10-13 00:15:33,614 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-10-13 00:15:33,615 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1376 states and 1905 transitions. [2021-10-13 00:15:33,622 INFO L131 ngComponentsAnalysis]: Automaton has 10 accepting balls. 1221 [2021-10-13 00:15:33,623 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:15:33,623 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:15:33,624 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:33,624 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] [2021-10-13 00:15:33,624 INFO L791 eck$LassoCheckResult]: Stem: 12724#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); 12712#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_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~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; 12701#L51 assume 0 == mp_add_~a3~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 12703#L53 assume 0 == mp_add_~a2~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 12741#L55 assume 0 == mp_add_~a1~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 12742#L51-1 mp_add_~nb~0 := 4; 12850#L61 assume !(0 == mp_add_~b3~0 % 256); 12851#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 12963#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; 12961#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 12925#L76 [2021-10-13 00:15:33,624 INFO L793 eck$LassoCheckResult]: Loop: 12925#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 12960#L76-2 assume !(1 == mp_add_~i~0 % 256); 12955#L77-1 assume !(2 == mp_add_~i~0 % 256); 12952#L78-1 assume !(3 == mp_add_~i~0 % 256); 12948#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 12933#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 12932#L82-2 assume !(1 == mp_add_~i~0 % 256); 12931#L83-1 assume !(2 == mp_add_~i~0 % 256); 12833#L84-1 assume !(3 == mp_add_~i~0 % 256); 12830#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 12832#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 12903#L91-1 assume !(1 == mp_add_~i~0 % 256); 12916#L92-1 assume !(2 == mp_add_~i~0 % 256); 12914#L93-1 assume !(3 == mp_add_~i~0 % 256); 12912#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 12774#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; 12775#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 12980#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 12979#L82 assume !(0 == mp_add_~i~0 % 256); 12978#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; 12943#L83-1 assume !(2 == mp_add_~i~0 % 256); 12977#L84-1 assume !(3 == mp_add_~i~0 % 256); 12975#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; 12974#L87-1 assume !(0 == mp_add_~i~0 % 256); 12973#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 12938#L92-1 assume !(2 == mp_add_~i~0 % 256); 12972#L93-1 assume !(3 == mp_add_~i~0 % 256); 12971#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 12970#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; 12968#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 12969#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 12998#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 12957#L87-1 assume !(0 == mp_add_~i~0 % 256); 12997#L91-1 assume !(1 == mp_add_~i~0 % 256); 12995#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 12823#L93-1 assume !(3 == mp_add_~i~0 % 256); 12844#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 12777#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; 12778#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 12925#L76 [2021-10-13 00:15:33,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:33,627 INFO L82 PathProgramCache]: Analyzing trace with hash -2147194379, now seen corresponding path program 7 times [2021-10-13 00:15:33,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:33,628 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601042626] [2021-10-13 00:15:33,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:33,628 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:33,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:33,645 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:15:33,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:33,672 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:15:33,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:33,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1525293494, now seen corresponding path program 1 times [2021-10-13 00:15:33,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:33,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434264654] [2021-10-13 00:15:33,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:33,674 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:33,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:33,771 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 23 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:33,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:15:33,771 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434264654] [2021-10-13 00:15:33,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434264654] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:15:33,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316919237] [2021-10-13 00:15:33,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:33,772 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:15:33,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:33,778 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:15:33,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2021-10-13 00:15:33,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:33,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 00:15:33,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:15:34,127 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-13 00:15:34,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1316919237] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:15:34,128 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:15:34,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 8 [2021-10-13 00:15:34,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033393805] [2021-10-13 00:15:34,129 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:15:34,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:15:34,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-13 00:15:34,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-10-13 00:15:34,130 INFO L87 Difference]: Start difference. First operand 1376 states and 1905 transitions. cyclomatic complexity: 539 Second operand has 9 states, 8 states have (on average 6.125) internal successors, (49), 9 states have internal predecessors, (49), 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) [2021-10-13 00:15:34,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:34,890 INFO L93 Difference]: Finished difference Result 3553 states and 4783 transitions. [2021-10-13 00:15:34,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 00:15:34,890 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3553 states and 4783 transitions. [2021-10-13 00:15:34,914 INFO L131 ngComponentsAnalysis]: Automaton has 18 accepting balls. 3279 [2021-10-13 00:15:34,942 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3553 states to 3553 states and 4783 transitions. [2021-10-13 00:15:34,942 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3553 [2021-10-13 00:15:34,947 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3553 [2021-10-13 00:15:34,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3553 states and 4783 transitions. [2021-10-13 00:15:34,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:15:34,953 INFO L681 BuchiCegarLoop]: Abstraction has 3553 states and 4783 transitions. [2021-10-13 00:15:34,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3553 states and 4783 transitions. [2021-10-13 00:15:35,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3553 to 2065. [2021-10-13 00:15:35,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2065 states, 2065 states have (on average 1.4004842615012107) internal successors, (2892), 2064 states have internal predecessors, (2892), 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) [2021-10-13 00:15:35,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2065 states to 2065 states and 2892 transitions. [2021-10-13 00:15:35,020 INFO L704 BuchiCegarLoop]: Abstraction has 2065 states and 2892 transitions. [2021-10-13 00:15:35,020 INFO L587 BuchiCegarLoop]: Abstraction has 2065 states and 2892 transitions. [2021-10-13 00:15:35,020 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-10-13 00:15:35,020 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2065 states and 2892 transitions. [2021-10-13 00:15:35,031 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 1904 [2021-10-13 00:15:35,032 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:15:35,032 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:15:35,033 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:35,033 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:35,033 INFO L791 eck$LassoCheckResult]: Stem: 17800#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); 17789#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_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~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; 17779#L51 assume 0 == mp_add_~a3~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 17781#L53 assume 0 == mp_add_~a2~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 17819#L55 assume 0 == mp_add_~a1~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 17820#L51-1 mp_add_~nb~0 := 4; 18168#L61 assume !(0 == mp_add_~b3~0 % 256); 18169#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 18211#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; 18210#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 18037#L76 [2021-10-13 00:15:35,033 INFO L793 eck$LassoCheckResult]: Loop: 18037#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 18209#L76-2 assume !(1 == mp_add_~i~0 % 256); 18208#L77-1 assume !(2 == mp_add_~i~0 % 256); 18207#L78-1 assume !(3 == mp_add_~i~0 % 256); 18206#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 18205#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 18046#L82-2 assume !(1 == mp_add_~i~0 % 256); 18201#L83-1 assume !(2 == mp_add_~i~0 % 256); 18200#L84-1 assume !(3 == mp_add_~i~0 % 256); 18149#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 18147#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 17935#L91-1 assume !(1 == mp_add_~i~0 % 256); 18143#L92-1 assume !(2 == mp_add_~i~0 % 256); 18020#L93-1 assume !(3 == mp_add_~i~0 % 256); 18021#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 17849#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; 17850#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 18121#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 17995#L82 assume !(0 == mp_add_~i~0 % 256); 18113#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; 18090#L83-1 assume !(2 == mp_add_~i~0 % 256); 17992#L84-1 assume !(3 == mp_add_~i~0 % 256); 17993#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; 18105#L87-1 assume !(0 == mp_add_~i~0 % 256); 18106#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 18014#L92-1 assume !(2 == mp_add_~i~0 % 256); 18015#L93-1 assume !(3 == mp_add_~i~0 % 256); 18006#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 18007#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; 18002#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 18003#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 17990#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 17991#L87-1 assume !(0 == mp_add_~i~0 % 256); 17982#L91-1 assume !(1 == mp_add_~i~0 % 256); 17983#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 17885#L93-1 assume !(3 == mp_add_~i~0 % 256); 17886#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 17867#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; 17868#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 18118#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 17922#L82 assume !(0 == mp_add_~i~0 % 256); 18111#L82-2 assume !(1 == mp_add_~i~0 % 256); 18112#L83-1 assume !(2 == mp_add_~i~0 % 256); 18194#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; 18026#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; 18100#L87-1 assume !(0 == mp_add_~i~0 % 256); 18101#L91-1 assume !(1 == mp_add_~i~0 % 256); 18094#L92-1 assume !(2 == mp_add_~i~0 % 256); 18095#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 18178#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 18177#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; 18176#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 18028#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 18030#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 17934#L87-1 assume !(0 == mp_add_~i~0 % 256); 17936#L91-1 assume !(1 == mp_add_~i~0 % 256); 17917#L92-1 assume !(2 == mp_add_~i~0 % 256); 17918#L93-1 assume !(3 == mp_add_~i~0 % 256); 18163#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 18162#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; 18056#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 18037#L76 [2021-10-13 00:15:35,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:35,034 INFO L82 PathProgramCache]: Analyzing trace with hash -2147194379, now seen corresponding path program 8 times [2021-10-13 00:15:35,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:35,034 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181495604] [2021-10-13 00:15:35,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:35,034 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:35,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:35,044 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:15:35,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:35,056 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:15:35,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:35,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1554435722, now seen corresponding path program 1 times [2021-10-13 00:15:35,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:35,057 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765625192] [2021-10-13 00:15:35,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:35,058 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:35,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:35,139 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-10-13 00:15:35,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:15:35,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765625192] [2021-10-13 00:15:35,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765625192] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:35,140 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:35,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-13 00:15:35,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21658098] [2021-10-13 00:15:35,140 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:15:35,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:15:35,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 00:15:35,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:15:35,141 INFO L87 Difference]: Start difference. First operand 2065 states and 2892 transitions. cyclomatic complexity: 843 Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2021-10-13 00:15:35,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:35,631 INFO L93 Difference]: Finished difference Result 4206 states and 5612 transitions. [2021-10-13 00:15:35,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 00:15:35,632 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4206 states and 5612 transitions. [2021-10-13 00:15:35,657 INFO L131 ngComponentsAnalysis]: Automaton has 29 accepting balls. 3312 [2021-10-13 00:15:35,688 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4206 states to 4124 states and 5525 transitions. [2021-10-13 00:15:35,688 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4124 [2021-10-13 00:15:35,693 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4124 [2021-10-13 00:15:35,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4124 states and 5525 transitions. [2021-10-13 00:15:35,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:15:35,700 INFO L681 BuchiCegarLoop]: Abstraction has 4124 states and 5525 transitions. [2021-10-13 00:15:35,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4124 states and 5525 transitions. [2021-10-13 00:15:35,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4124 to 3304. [2021-10-13 00:15:35,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3304 states, 3304 states have (on average 1.3928571428571428) internal successors, (4602), 3303 states have internal predecessors, (4602), 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) [2021-10-13 00:15:35,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3304 states to 3304 states and 4602 transitions. [2021-10-13 00:15:35,789 INFO L704 BuchiCegarLoop]: Abstraction has 3304 states and 4602 transitions. [2021-10-13 00:15:35,789 INFO L587 BuchiCegarLoop]: Abstraction has 3304 states and 4602 transitions. [2021-10-13 00:15:35,789 INFO L425 BuchiCegarLoop]: ======== Iteration 14============ [2021-10-13 00:15:35,790 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3304 states and 4602 transitions. [2021-10-13 00:15:35,802 INFO L131 ngComponentsAnalysis]: Automaton has 26 accepting balls. 2971 [2021-10-13 00:15:35,802 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:15:35,802 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:15:35,803 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:35,803 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:35,803 INFO L791 eck$LassoCheckResult]: Stem: 24095#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); 24083#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_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~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; 24072#L51 assume 0 == mp_add_~a3~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 24074#L53 assume 0 == mp_add_~a2~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 24112#L55 assume 0 == mp_add_~a1~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 24113#L51-1 mp_add_~nb~0 := 4; 24426#L61 assume !(0 == mp_add_~b3~0 % 256); 24427#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 24511#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; 24510#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 24324#L76 [2021-10-13 00:15:35,804 INFO L793 eck$LassoCheckResult]: Loop: 24324#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 24509#L76-2 assume !(1 == mp_add_~i~0 % 256); 24508#L77-1 assume !(2 == mp_add_~i~0 % 256); 24507#L78-1 assume !(3 == mp_add_~i~0 % 256); 24506#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 24505#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 24310#L82-2 assume !(1 == mp_add_~i~0 % 256); 24504#L83-1 assume !(2 == mp_add_~i~0 % 256); 24409#L84-1 assume !(3 == mp_add_~i~0 % 256); 24410#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; 24524#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 24285#L91-1 assume !(1 == mp_add_~i~0 % 256); 24522#L92-1 assume !(2 == mp_add_~i~0 % 256); 24520#L93-1 assume !(3 == mp_add_~i~0 % 256); 24518#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 24515#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; 24513#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 24514#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 24392#L82 assume !(0 == mp_add_~i~0 % 256); 24389#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; 24387#L83-1 assume !(2 == mp_add_~i~0 % 256); 24384#L84-1 assume !(3 == mp_add_~i~0 % 256); 24380#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; 24381#L87-1 assume !(0 == mp_add_~i~0 % 256); 24272#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 24273#L92-1 assume !(2 == mp_add_~i~0 % 256); 24268#L93-1 assume !(3 == mp_add_~i~0 % 256); 24269#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 24264#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; 24265#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 24259#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 24260#L82 assume !(0 == mp_add_~i~0 % 256); 24399#L82-2 assume !(1 == mp_add_~i~0 % 256); 24261#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; 24257#L84-1 assume !(3 == mp_add_~i~0 % 256); 24258#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; 24300#L87-1 assume !(0 == mp_add_~i~0 % 256); 24396#L91-1 assume !(1 == mp_add_~i~0 % 256); 24283#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 24282#L93-1 assume !(3 == mp_add_~i~0 % 256); 24281#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 24280#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; 24279#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 24276#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 24277#L82 assume !(0 == mp_add_~i~0 % 256); 24290#L82-2 assume !(1 == mp_add_~i~0 % 256); 24289#L83-1 assume !(2 == mp_add_~i~0 % 256); 24274#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; 24275#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; 24350#L87-1 assume !(0 == mp_add_~i~0 % 256); 24345#L91-1 assume !(1 == mp_add_~i~0 % 256); 24340#L92-1 assume !(2 == mp_add_~i~0 % 256); 24332#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 24329#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 24326#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; 24322#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 24316#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 24317#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 24307#L87-1 assume !(0 == mp_add_~i~0 % 256); 24308#L91-1 assume !(1 == mp_add_~i~0 % 256); 24297#L92-1 assume !(2 == mp_add_~i~0 % 256); 24240#L93-1 assume !(3 == mp_add_~i~0 % 256); 24422#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 24420#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; 24390#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 24324#L76 [2021-10-13 00:15:35,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:35,804 INFO L82 PathProgramCache]: Analyzing trace with hash -2147194379, now seen corresponding path program 9 times [2021-10-13 00:15:35,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:35,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205392410] [2021-10-13 00:15:35,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:35,805 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:35,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:35,819 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:15:35,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:35,850 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:15:35,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:35,852 INFO L82 PathProgramCache]: Analyzing trace with hash -426721682, now seen corresponding path program 1 times [2021-10-13 00:15:35,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:35,852 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594220091] [2021-10-13 00:15:35,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:35,853 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:35,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:36,054 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 8 proven. 106 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:36,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:15:36,054 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594220091] [2021-10-13 00:15:36,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594220091] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:15:36,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514282984] [2021-10-13 00:15:36,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:36,055 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:15:36,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:36,057 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:15:36,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2021-10-13 00:15:36,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:36,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 00:15:36,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:15:36,782 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 83 proven. 14 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-10-13 00:15:36,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514282984] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:15:36,783 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:15:36,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6] total 15 [2021-10-13 00:15:36,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903708998] [2021-10-13 00:15:36,783 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:15:36,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:15:36,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-13 00:15:36,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2021-10-13 00:15:36,784 INFO L87 Difference]: Start difference. First operand 3304 states and 4602 transitions. cyclomatic complexity: 1324 Second operand has 16 states, 15 states have (on average 7.933333333333334) internal successors, (119), 16 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) [2021-10-13 00:15:39,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:39,422 INFO L93 Difference]: Finished difference Result 7612 states and 9710 transitions. [2021-10-13 00:15:39,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-10-13 00:15:39,423 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7612 states and 9710 transitions. [2021-10-13 00:15:39,455 INFO L131 ngComponentsAnalysis]: Automaton has 22 accepting balls. 5804 [2021-10-13 00:15:39,505 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7612 states to 6767 states and 8354 transitions. [2021-10-13 00:15:39,506 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6767 [2021-10-13 00:15:39,512 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6767 [2021-10-13 00:15:39,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6767 states and 8354 transitions. [2021-10-13 00:15:39,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:15:39,523 INFO L681 BuchiCegarLoop]: Abstraction has 6767 states and 8354 transitions. [2021-10-13 00:15:39,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6767 states and 8354 transitions. [2021-10-13 00:15:39,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6767 to 2240. [2021-10-13 00:15:39,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2240 states, 2240 states have (on average 1.3852678571428572) internal successors, (3103), 2239 states have internal predecessors, (3103), 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) [2021-10-13 00:15:39,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2240 states to 2240 states and 3103 transitions. [2021-10-13 00:15:39,622 INFO L704 BuchiCegarLoop]: Abstraction has 2240 states and 3103 transitions. [2021-10-13 00:15:39,622 INFO L587 BuchiCegarLoop]: Abstraction has 2240 states and 3103 transitions. [2021-10-13 00:15:39,622 INFO L425 BuchiCegarLoop]: ======== Iteration 15============ [2021-10-13 00:15:39,622 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2240 states and 3103 transitions. [2021-10-13 00:15:39,629 INFO L131 ngComponentsAnalysis]: Automaton has 11 accepting balls. 2064 [2021-10-13 00:15:39,629 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:15:39,630 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:15:39,630 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:39,631 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:39,631 INFO L791 eck$LassoCheckResult]: Stem: 35272#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); 35266#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_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~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; 35257#L51 assume 0 == mp_add_~a3~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 35259#L53 assume 0 == mp_add_~a2~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 35281#L55 assume 0 == mp_add_~a1~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 35282#L51-1 mp_add_~nb~0 := 4; 36875#L61 assume !(0 == mp_add_~b3~0 % 256); 35270#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 35271#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; 36125#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 35314#L76 [2021-10-13 00:15:39,631 INFO L793 eck$LassoCheckResult]: Loop: 35314#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 35273#L76-2 assume !(1 == mp_add_~i~0 % 256); 35274#L77-1 assume !(2 == mp_add_~i~0 % 256); 35275#L78-1 assume !(3 == mp_add_~i~0 % 256); 35279#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 35277#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 35278#L82-2 assume !(1 == mp_add_~i~0 % 256); 35284#L83-1 assume !(2 == mp_add_~i~0 % 256); 37488#L84-1 assume !(3 == mp_add_~i~0 % 256); 37487#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; 37482#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 35661#L91-1 assume !(1 == mp_add_~i~0 % 256); 37481#L92-1 assume !(2 == mp_add_~i~0 % 256); 37480#L93-1 assume !(3 == mp_add_~i~0 % 256); 37479#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 37478#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; 37441#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 37440#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 37439#L82 assume !(0 == mp_add_~i~0 % 256); 37437#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; 35287#L83-1 assume !(2 == mp_add_~i~0 % 256); 35280#L84-1 assume !(3 == mp_add_~i~0 % 256); 35276#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; 35267#L87-1 assume !(0 == mp_add_~i~0 % 256); 35256#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 35254#L92-1 assume !(2 == mp_add_~i~0 % 256); 35255#L93-1 assume !(3 == mp_add_~i~0 % 256); 35269#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 35264#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; 35265#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 35283#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 37436#L82 assume !(0 == mp_add_~i~0 % 256); 37435#L82-2 assume !(1 == mp_add_~i~0 % 256); 37400#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; 37262#L84-1 assume !(3 == mp_add_~i~0 % 256); 37386#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; 37385#L87-1 assume !(0 == mp_add_~i~0 % 256); 37384#L91-1 assume !(1 == mp_add_~i~0 % 256); 37213#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 37212#L93-1 assume !(3 == mp_add_~i~0 % 256); 37211#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 37210#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; 37209#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 37208#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 37206#L82 assume !(0 == mp_add_~i~0 % 256); 37205#L82-2 assume !(1 == mp_add_~i~0 % 256); 37203#L83-1 assume !(2 == mp_add_~i~0 % 256); 37171#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; 37169#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; 37168#L87-1 assume !(0 == mp_add_~i~0 % 256); 37167#L91-1 assume !(1 == mp_add_~i~0 % 256); 37166#L92-1 assume !(2 == mp_add_~i~0 % 256); 37165#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 37164#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 37163#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; 37161#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 37158#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 37156#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 37128#L87-1 assume !(0 == mp_add_~i~0 % 256); 37155#L91-1 assume !(1 == mp_add_~i~0 % 256); 37147#L92-1 assume !(2 == mp_add_~i~0 % 256); 37148#L93-1 assume !(3 == mp_add_~i~0 % 256); 37276#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 37275#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; 37274#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 37273#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 37272#L82 assume !(0 == mp_add_~i~0 % 256); 37271#L82-2 assume !(1 == mp_add_~i~0 % 256); 37270#L83-1 assume !(2 == mp_add_~i~0 % 256); 37269#L84-1 assume !(3 == mp_add_~i~0 % 256); 37195#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; 37196#L87-1 assume !(0 == mp_add_~i~0 % 256); 37191#L91-1 assume !(1 == mp_add_~i~0 % 256); 37192#L92-1 assume !(2 == mp_add_~i~0 % 256); 37187#L93-1 assume !(3 == mp_add_~i~0 % 256); 37188#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 37183#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; 37184#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 37315#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 37317#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 37070#L87-1 assume !(0 == mp_add_~i~0 % 256); 37071#L91-1 assume !(1 == mp_add_~i~0 % 256); 37279#L92-1 assume !(2 == mp_add_~i~0 % 256); 37102#L93-1 assume !(3 == mp_add_~i~0 % 256); 37093#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 37094#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; 37086#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 35314#L76 [2021-10-13 00:15:39,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:39,632 INFO L82 PathProgramCache]: Analyzing trace with hash -2147194379, now seen corresponding path program 10 times [2021-10-13 00:15:39,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:39,632 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528546626] [2021-10-13 00:15:39,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:39,632 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:39,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:39,645 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:15:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:39,663 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:15:39,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:39,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1754230746, now seen corresponding path program 2 times [2021-10-13 00:15:39,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:39,664 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250713473] [2021-10-13 00:15:39,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:39,664 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:39,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:39,839 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 158 proven. 9 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2021-10-13 00:15:39,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:15:39,840 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250713473] [2021-10-13 00:15:39,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250713473] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:15:39,840 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574973181] [2021-10-13 00:15:39,840 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:15:39,840 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:15:39,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:39,846 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:15:39,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2021-10-13 00:15:40,030 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 00:15:40,030 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:15:40,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 00:15:40,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:15:40,264 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 144 proven. 3 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2021-10-13 00:15:40,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574973181] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:15:40,264 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:15:40,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4] total 11 [2021-10-13 00:15:40,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111879018] [2021-10-13 00:15:40,265 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:15:40,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:15:40,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-13 00:15:40,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-10-13 00:15:40,266 INFO L87 Difference]: Start difference. First operand 2240 states and 3103 transitions. cyclomatic complexity: 874 Second operand has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 11 states have internal predecessors, (76), 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) [2021-10-13 00:15:41,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:41,710 INFO L93 Difference]: Finished difference Result 5472 states and 6798 transitions. [2021-10-13 00:15:41,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-10-13 00:15:41,711 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5472 states and 6798 transitions. [2021-10-13 00:15:41,733 INFO L131 ngComponentsAnalysis]: Automaton has 11 accepting balls. 4405 [2021-10-13 00:15:41,760 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5472 states to 4656 states and 5773 transitions. [2021-10-13 00:15:41,760 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4656 [2021-10-13 00:15:41,765 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4656 [2021-10-13 00:15:41,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4656 states and 5773 transitions. [2021-10-13 00:15:41,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:15:41,805 INFO L681 BuchiCegarLoop]: Abstraction has 4656 states and 5773 transitions. [2021-10-13 00:15:41,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4656 states and 5773 transitions. [2021-10-13 00:15:41,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4656 to 1902. [2021-10-13 00:15:41,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1902 states, 1902 states have (on average 1.2860147213459516) internal successors, (2446), 1901 states have internal predecessors, (2446), 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) [2021-10-13 00:15:41,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2446 transitions. [2021-10-13 00:15:41,864 INFO L704 BuchiCegarLoop]: Abstraction has 1902 states and 2446 transitions. [2021-10-13 00:15:41,865 INFO L587 BuchiCegarLoop]: Abstraction has 1902 states and 2446 transitions. [2021-10-13 00:15:41,865 INFO L425 BuchiCegarLoop]: ======== Iteration 16============ [2021-10-13 00:15:41,865 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1902 states and 2446 transitions. [2021-10-13 00:15:41,872 INFO L131 ngComponentsAnalysis]: Automaton has 11 accepting balls. 1774 [2021-10-13 00:15:41,873 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:15:41,873 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:15:41,874 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:41,874 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:41,874 INFO L791 eck$LassoCheckResult]: Stem: 43362#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); 43353#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_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~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; 43343#L51 assume 0 == mp_add_~a3~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 43345#L53 assume 0 == mp_add_~a2~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 43375#L55 assume 0 == mp_add_~a1~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 43376#L51-1 mp_add_~nb~0 := 4; 43838#L61 assume !(0 == mp_add_~b3~0 % 256); 43835#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 43834#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; 43833#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 43442#L76 [2021-10-13 00:15:41,874 INFO L793 eck$LassoCheckResult]: Loop: 43442#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 43832#L76-2 assume !(1 == mp_add_~i~0 % 256); 43831#L77-1 assume !(2 == mp_add_~i~0 % 256); 43822#L78-1 assume !(3 == mp_add_~i~0 % 256); 43821#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 43799#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 43585#L82-2 assume !(1 == mp_add_~i~0 % 256); 43798#L83-1 assume !(2 == mp_add_~i~0 % 256); 43797#L84-1 assume !(3 == mp_add_~i~0 % 256); 43794#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; 43791#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 43424#L91-1 assume !(1 == mp_add_~i~0 % 256); 43645#L92-1 assume !(2 == mp_add_~i~0 % 256); 43644#L93-1 assume !(3 == mp_add_~i~0 % 256); 43642#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 43643#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; 43380#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 43381#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 43820#L82 assume !(0 == mp_add_~i~0 % 256); 43815#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; 43435#L83-1 assume !(2 == mp_add_~i~0 % 256); 43814#L84-1 assume !(3 == mp_add_~i~0 % 256); 43813#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; 43812#L87-1 assume !(0 == mp_add_~i~0 % 256); 43626#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 43535#L92-1 assume !(2 == mp_add_~i~0 % 256); 43625#L93-1 assume !(3 == mp_add_~i~0 % 256); 43624#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 43623#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; 43622#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 43621#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 43620#L82 assume !(0 == mp_add_~i~0 % 256); 43619#L82-2 assume !(1 == mp_add_~i~0 % 256); 43618#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; 43432#L84-1 assume !(3 == mp_add_~i~0 % 256); 43617#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; 43615#L87-1 assume !(0 == mp_add_~i~0 % 256); 43613#L91-1 assume !(1 == mp_add_~i~0 % 256); 43612#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 43419#L93-1 assume !(3 == mp_add_~i~0 % 256); 43611#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 43511#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; 43512#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 43507#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 43508#L82 assume !(0 == mp_add_~i~0 % 256); 43503#L82-2 assume !(1 == mp_add_~i~0 % 256); 43504#L83-1 assume !(2 == mp_add_~i~0 % 256); 43610#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; 43429#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; 43495#L87-1 assume !(0 == mp_add_~i~0 % 256); 43540#L91-1 assume !(1 == mp_add_~i~0 % 256); 43541#L92-1 assume !(2 == mp_add_~i~0 % 256); 43609#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 43587#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 43608#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; 43607#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 43606#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 43605#L82 assume !(0 == mp_add_~i~0 % 256); 43604#L82-2 assume !(1 == mp_add_~i~0 % 256); 43603#L83-1 assume !(2 == mp_add_~i~0 % 256); 43602#L84-1 assume !(3 == mp_add_~i~0 % 256); 43601#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 43600#L87-1 assume !(0 == mp_add_~i~0 % 256); 43599#L91-1 assume !(1 == mp_add_~i~0 % 256); 43598#L92-1 assume !(2 == mp_add_~i~0 % 256); 43597#L93-1 assume !(3 == mp_add_~i~0 % 256); 43596#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 43473#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; 43474#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 43469#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 43470#L82 assume !(0 == mp_add_~i~0 % 256); 43465#L82-2 assume !(1 == mp_add_~i~0 % 256); 43466#L83-1 assume !(2 == mp_add_~i~0 % 256); 43461#L84-1 assume !(3 == mp_add_~i~0 % 256); 43462#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 43457#L87-1 assume !(0 == mp_add_~i~0 % 256); 43458#L91-1 assume !(1 == mp_add_~i~0 % 256); 43453#L92-1 assume !(2 == mp_add_~i~0 % 256); 43454#L93-1 assume !(3 == mp_add_~i~0 % 256); 43449#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 43450#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; 43443#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 43444#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 43437#L82 assume !(0 == mp_add_~i~0 % 256); 43438#L82-2 assume !(1 == mp_add_~i~0 % 256); 43431#L83-1 assume !(2 == mp_add_~i~0 % 256); 43433#L84-1 assume !(3 == mp_add_~i~0 % 256); 43426#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 43427#L87-1 assume !(0 == mp_add_~i~0 % 256); 43588#L91-1 assume !(1 == mp_add_~i~0 % 256); 43418#L92-1 assume !(2 == mp_add_~i~0 % 256); 43420#L93-1 assume !(3 == mp_add_~i~0 % 256); 43413#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 43414#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; 43441#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 43442#L76 [2021-10-13 00:15:41,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:41,875 INFO L82 PathProgramCache]: Analyzing trace with hash -2147194379, now seen corresponding path program 11 times [2021-10-13 00:15:41,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:41,876 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781656523] [2021-10-13 00:15:41,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:41,876 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:41,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:41,889 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:15:41,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:41,901 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:15:41,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:41,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1095335616, now seen corresponding path program 1 times [2021-10-13 00:15:41,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:41,902 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634057974] [2021-10-13 00:15:41,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:41,902 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:41,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:42,085 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 93 proven. 180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:42,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:15:42,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634057974] [2021-10-13 00:15:42,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634057974] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:15:42,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804547937] [2021-10-13 00:15:42,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:42,086 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:15:42,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:42,090 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:15:42,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2021-10-13 00:15:42,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:42,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 00:15:42,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:15:43,457 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 143 proven. 12 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-10-13 00:15:43,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804547937] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:15:43,458 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:15:43,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-10-13 00:15:43,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250758741] [2021-10-13 00:15:43,459 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:15:43,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:15:43,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-13 00:15:43,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2021-10-13 00:15:43,460 INFO L87 Difference]: Start difference. First operand 1902 states and 2446 transitions. cyclomatic complexity: 555 Second operand has 17 states, 16 states have (on average 8.0625) internal successors, (129), 17 states have internal predecessors, (129), 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) [2021-10-13 00:15:45,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:45,658 INFO L93 Difference]: Finished difference Result 2014 states and 2551 transitions. [2021-10-13 00:15:45,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-13 00:15:45,658 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2014 states and 2551 transitions. [2021-10-13 00:15:45,664 INFO L131 ngComponentsAnalysis]: Automaton has 11 accepting balls. 1703 [2021-10-13 00:15:45,672 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2014 states to 2014 states and 2551 transitions. [2021-10-13 00:15:45,672 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2014 [2021-10-13 00:15:45,675 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2014 [2021-10-13 00:15:45,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2014 states and 2551 transitions. [2021-10-13 00:15:45,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:15:45,678 INFO L681 BuchiCegarLoop]: Abstraction has 2014 states and 2551 transitions. [2021-10-13 00:15:45,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2014 states and 2551 transitions. [2021-10-13 00:15:45,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2014 to 1865. [2021-10-13 00:15:45,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1865 states, 1865 states have (on average 1.2857908847184987) internal successors, (2398), 1864 states have internal predecessors, (2398), 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) [2021-10-13 00:15:45,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1865 states to 1865 states and 2398 transitions. [2021-10-13 00:15:45,730 INFO L704 BuchiCegarLoop]: Abstraction has 1865 states and 2398 transitions. [2021-10-13 00:15:45,730 INFO L587 BuchiCegarLoop]: Abstraction has 1865 states and 2398 transitions. [2021-10-13 00:15:45,730 INFO L425 BuchiCegarLoop]: ======== Iteration 17============ [2021-10-13 00:15:45,731 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1865 states and 2398 transitions. [2021-10-13 00:15:45,737 INFO L131 ngComponentsAnalysis]: Automaton has 11 accepting balls. 1684 [2021-10-13 00:15:45,737 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:15:45,737 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:15:45,738 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:45,738 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:45,738 INFO L791 eck$LassoCheckResult]: Stem: 47620#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); 47611#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_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~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; 47600#L51 assume !(0 == mp_add_~a3~0 % 256); 47601#L51-1 mp_add_~nb~0 := 4; 47603#L61 assume 0 == mp_add_~b3~0 % 256;mp_add_~nb~0 := mp_add_~nb~0 % 256 - 1; 47605#L63 assume !(0 == mp_add_~b2~0 % 256); 47606#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 48821#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; 48822#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 48818#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 48816#L76-2 assume !(1 == mp_add_~i~0 % 256); 48817#L77-1 assume !(2 == mp_add_~i~0 % 256); 49024#L78-1 assume !(3 == mp_add_~i~0 % 256); 49025#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 48836#L81 [2021-10-13 00:15:45,739 INFO L793 eck$LassoCheckResult]: Loop: 48836#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; 47678#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 47679#L91-1 assume !(1 == mp_add_~i~0 % 256); 47671#L92-1 assume !(2 == mp_add_~i~0 % 256); 47672#L93-1 assume !(3 == mp_add_~i~0 % 256); 47667#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 47668#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; 49309#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 49310#L76 assume !(0 == mp_add_~i~0 % 256); 49303#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; 49304#L77-1 assume !(2 == mp_add_~i~0 % 256); 49297#L78-1 assume !(3 == mp_add_~i~0 % 256); 49298#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 48285#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; 48756#L87-1 assume !(0 == mp_add_~i~0 % 256); 47656#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 47657#L92-1 assume !(2 == mp_add_~i~0 % 256); 47652#L93-1 assume !(3 == mp_add_~i~0 % 256); 47653#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 47648#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; 47649#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 48572#L76 assume !(0 == mp_add_~i~0 % 256); 48573#L76-2 assume !(1 == mp_add_~i~0 % 256); 47637#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; 47638#L78-1 assume !(3 == mp_add_~i~0 % 256); 49381#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 48221#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; 49378#L87-1 assume !(0 == mp_add_~i~0 % 256); 49377#L91-1 assume !(1 == mp_add_~i~0 % 256); 49376#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 49375#L93-1 assume !(3 == mp_add_~i~0 % 256); 49374#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 49325#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; 49326#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 47636#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 49321#L76-2 assume !(1 == mp_add_~i~0 % 256); 49367#L77-1 assume !(2 == mp_add_~i~0 % 256); 49366#L78-1 assume !(3 == mp_add_~i~0 % 256); 49365#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 48836#L81 [2021-10-13 00:15:45,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:45,739 INFO L82 PathProgramCache]: Analyzing trace with hash -483244445, now seen corresponding path program 1 times [2021-10-13 00:15:45,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:45,740 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738011796] [2021-10-13 00:15:45,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:45,740 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:45,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:45,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:45,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:15:45,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738011796] [2021-10-13 00:15:45,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738011796] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:45,780 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:45,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:15:45,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579622275] [2021-10-13 00:15:45,781 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:15:45,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:45,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1898923092, now seen corresponding path program 1 times [2021-10-13 00:15:45,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:45,781 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125116384] [2021-10-13 00:15:45,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:45,782 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:45,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:45,831 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-13 00:15:45,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:15:45,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125116384] [2021-10-13 00:15:45,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125116384] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:45,832 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:45,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:15:45,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220425404] [2021-10-13 00:15:45,833 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:15:45,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:15:45,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:15:45,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:15:45,834 INFO L87 Difference]: Start difference. First operand 1865 states and 2398 transitions. cyclomatic complexity: 544 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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) [2021-10-13 00:15:45,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:45,839 INFO L93 Difference]: Finished difference Result 1086 states and 1374 transitions. [2021-10-13 00:15:45,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:15:45,840 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1086 states and 1374 transitions. [2021-10-13 00:15:45,844 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 953 [2021-10-13 00:15:45,855 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1086 states to 1086 states and 1374 transitions. [2021-10-13 00:15:45,855 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1086 [2021-10-13 00:15:45,856 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1086 [2021-10-13 00:15:45,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1086 states and 1374 transitions. [2021-10-13 00:15:45,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:15:45,857 INFO L681 BuchiCegarLoop]: Abstraction has 1086 states and 1374 transitions. [2021-10-13 00:15:45,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1086 states and 1374 transitions. [2021-10-13 00:15:45,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1086 to 1086. [2021-10-13 00:15:45,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1086 states, 1086 states have (on average 1.2651933701657458) internal successors, (1374), 1085 states have internal predecessors, (1374), 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) [2021-10-13 00:15:45,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1374 transitions. [2021-10-13 00:15:45,874 INFO L704 BuchiCegarLoop]: Abstraction has 1086 states and 1374 transitions. [2021-10-13 00:15:45,874 INFO L587 BuchiCegarLoop]: Abstraction has 1086 states and 1374 transitions. [2021-10-13 00:15:45,874 INFO L425 BuchiCegarLoop]: ======== Iteration 18============ [2021-10-13 00:15:45,874 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1086 states and 1374 transitions. [2021-10-13 00:15:45,877 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 953 [2021-10-13 00:15:45,877 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:15:45,877 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:15:45,878 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:45,878 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:45,878 INFO L791 eck$LassoCheckResult]: Stem: 50578#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); 50568#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_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~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; 50559#L51 assume !(0 == mp_add_~a3~0 % 256); 50560#L51-1 mp_add_~nb~0 := 4; 51447#L61 assume !(0 == mp_add_~b3~0 % 256); 51446#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 51445#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; 51444#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 51443#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 51442#L76-2 assume !(1 == mp_add_~i~0 % 256); 51440#L77-1 assume !(2 == mp_add_~i~0 % 256); 51438#L78-1 assume !(3 == mp_add_~i~0 % 256); 51436#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 51434#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 51433#L82-2 assume !(1 == mp_add_~i~0 % 256); 51431#L83-1 assume !(2 == mp_add_~i~0 % 256); 51429#L84-1 assume !(3 == mp_add_~i~0 % 256); 51426#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; 51427#L87-1 [2021-10-13 00:15:45,879 INFO L793 eck$LassoCheckResult]: Loop: 51427#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 51156#L91-1 assume !(1 == mp_add_~i~0 % 256); 51514#L92-1 assume !(2 == mp_add_~i~0 % 256); 51513#L93-1 assume !(3 == mp_add_~i~0 % 256); 51414#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 51410#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; 51411#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 51369#L76 assume !(0 == mp_add_~i~0 % 256); 51366#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; 51125#L77-1 assume !(2 == mp_add_~i~0 % 256); 51364#L78-1 assume !(3 == mp_add_~i~0 % 256); 51362#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 51360#L82 assume !(0 == mp_add_~i~0 % 256); 51348#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; 51346#L83-1 assume !(2 == mp_add_~i~0 % 256); 51343#L84-1 assume !(3 == mp_add_~i~0 % 256); 51342#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; 51341#L87-1 assume !(0 == mp_add_~i~0 % 256); 50960#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 50958#L92-1 assume !(2 == mp_add_~i~0 % 256); 50955#L93-1 assume !(3 == mp_add_~i~0 % 256); 50956#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 51166#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; 50945#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 50946#L76 assume !(0 == mp_add_~i~0 % 256); 51378#L76-2 assume !(1 == mp_add_~i~0 % 256); 51376#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; 51096#L78-1 assume !(3 == mp_add_~i~0 % 256); 51374#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 51373#L82 assume !(0 == mp_add_~i~0 % 256); 51371#L82-2 assume !(1 == mp_add_~i~0 % 256); 51326#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; 51324#L84-1 assume !(3 == mp_add_~i~0 % 256); 51321#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 51319#L87-1 assume !(0 == mp_add_~i~0 % 256); 51152#L91-1 assume !(1 == mp_add_~i~0 % 256); 51147#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 51143#L93-1 assume !(3 == mp_add_~i~0 % 256); 51138#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 51135#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; 51132#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 50922#L76 assume !(0 == mp_add_~i~0 % 256); 51124#L76-2 assume !(1 == mp_add_~i~0 % 256); 51095#L77-1 assume !(2 == mp_add_~i~0 % 256); 51037#L78-1 assume !(3 == mp_add_~i~0 % 256); 51038#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 51045#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 51359#L82-2 assume !(1 == mp_add_~i~0 % 256); 51517#L83-1 assume !(2 == mp_add_~i~0 % 256); 51516#L84-1 assume !(3 == mp_add_~i~0 % 256); 51515#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; 51427#L87-1 [2021-10-13 00:15:45,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:45,879 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 1 times [2021-10-13 00:15:45,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:45,879 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584614776] [2021-10-13 00:15:45,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:45,881 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:45,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:45,902 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:15:45,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:45,923 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:15:45,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:45,924 INFO L82 PathProgramCache]: Analyzing trace with hash -1734479178, now seen corresponding path program 1 times [2021-10-13 00:15:45,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:45,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60185836] [2021-10-13 00:15:45,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:45,925 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:45,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:45,952 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-10-13 00:15:45,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:15:45,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60185836] [2021-10-13 00:15:45,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60185836] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:45,953 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:45,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:15:45,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264825709] [2021-10-13 00:15:45,954 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:15:45,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:15:45,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:15:45,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:15:45,955 INFO L87 Difference]: Start difference. First operand 1086 states and 1374 transitions. cyclomatic complexity: 295 Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2021-10-13 00:15:46,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:46,014 INFO L93 Difference]: Finished difference Result 1064 states and 1328 transitions. [2021-10-13 00:15:46,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:15:46,014 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1064 states and 1328 transitions. [2021-10-13 00:15:46,019 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 931 [2021-10-13 00:15:46,023 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1064 states to 1064 states and 1328 transitions. [2021-10-13 00:15:46,023 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1064 [2021-10-13 00:15:46,024 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1064 [2021-10-13 00:15:46,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1064 states and 1328 transitions. [2021-10-13 00:15:46,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:15:46,027 INFO L681 BuchiCegarLoop]: Abstraction has 1064 states and 1328 transitions. [2021-10-13 00:15:46,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states and 1328 transitions. [2021-10-13 00:15:46,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 1062. [2021-10-13 00:15:46,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 1062 states have (on average 1.2485875706214689) internal successors, (1326), 1061 states have internal predecessors, (1326), 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) [2021-10-13 00:15:46,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1326 transitions. [2021-10-13 00:15:46,044 INFO L704 BuchiCegarLoop]: Abstraction has 1062 states and 1326 transitions. [2021-10-13 00:15:46,044 INFO L587 BuchiCegarLoop]: Abstraction has 1062 states and 1326 transitions. [2021-10-13 00:15:46,044 INFO L425 BuchiCegarLoop]: ======== Iteration 19============ [2021-10-13 00:15:46,044 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1062 states and 1326 transitions. [2021-10-13 00:15:46,047 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 929 [2021-10-13 00:15:46,048 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:15:46,048 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:15:46,049 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:46,049 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:46,049 INFO L791 eck$LassoCheckResult]: Stem: 52732#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); 52723#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_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~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; 52715#L51 assume !(0 == mp_add_~a3~0 % 256); 52716#L51-1 mp_add_~nb~0 := 4; 52727#L61 assume !(0 == mp_add_~b3~0 % 256); 52729#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 52730#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; 53645#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 53643#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 53641#L76-2 assume !(1 == mp_add_~i~0 % 256); 53642#L77-1 assume !(2 == mp_add_~i~0 % 256); 53709#L78-1 assume !(3 == mp_add_~i~0 % 256); 53628#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 53622#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 53623#L82-2 assume !(1 == mp_add_~i~0 % 256); 53705#L83-1 assume !(2 == mp_add_~i~0 % 256); 53703#L84-1 assume !(3 == mp_add_~i~0 % 256); 53701#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; 53596#L87-1 [2021-10-13 00:15:46,049 INFO L793 eck$LassoCheckResult]: Loop: 53596#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 53597#L91-1 assume !(1 == mp_add_~i~0 % 256); 53695#L92-1 assume !(2 == mp_add_~i~0 % 256); 53693#L93-1 assume !(3 == mp_add_~i~0 % 256); 53575#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 52795#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; 52796#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 53567#L76 assume !(0 == mp_add_~i~0 % 256); 53566#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; 53278#L77-1 assume !(2 == mp_add_~i~0 % 256); 53565#L78-1 assume !(3 == mp_add_~i~0 % 256); 53563#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 53564#L82 assume !(0 == mp_add_~i~0 % 256); 53492#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; 53489#L83-1 assume !(2 == mp_add_~i~0 % 256); 53485#L84-1 assume !(3 == mp_add_~i~0 % 256); 53480#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; 53477#L87-1 assume !(0 == mp_add_~i~0 % 256); 53113#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 53114#L92-1 assume !(2 == mp_add_~i~0 % 256); 53322#L93-1 assume !(3 == mp_add_~i~0 % 256); 53320#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 53101#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; 53102#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 53309#L76 assume !(0 == mp_add_~i~0 % 256); 53303#L76-2 assume !(1 == mp_add_~i~0 % 256); 53275#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; 53207#L78-1 assume !(3 == mp_add_~i~0 % 256); 53270#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 53268#L82 assume !(0 == mp_add_~i~0 % 256); 53266#L82-2 assume !(1 == mp_add_~i~0 % 256); 53265#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; 53260#L84-1 assume !(3 == mp_add_~i~0 % 256); 53256#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; 53254#L87-1 assume !(0 == mp_add_~i~0 % 256); 53250#L91-1 assume !(1 == mp_add_~i~0 % 256); 53203#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 53204#L93-1 assume !(3 == mp_add_~i~0 % 256); 53175#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 53176#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; 53165#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 53166#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 53283#L76-2 assume !(1 == mp_add_~i~0 % 256); 53638#L77-1 assume !(2 == mp_add_~i~0 % 256); 53633#L78-1 assume !(3 == mp_add_~i~0 % 256); 53634#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 53707#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 53617#L82-2 assume !(1 == mp_add_~i~0 % 256); 53612#L83-1 assume !(2 == mp_add_~i~0 % 256); 53607#L84-1 assume !(3 == mp_add_~i~0 % 256); 53602#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; 53596#L87-1 [2021-10-13 00:15:46,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:46,050 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 2 times [2021-10-13 00:15:46,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:46,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045562871] [2021-10-13 00:15:46,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:46,050 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:46,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:46,069 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:15:46,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:46,090 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:15:46,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:46,091 INFO L82 PathProgramCache]: Analyzing trace with hash 652692538, now seen corresponding path program 1 times [2021-10-13 00:15:46,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:46,091 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447188385] [2021-10-13 00:15:46,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:46,091 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:46,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:46,154 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-13 00:15:46,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:15:46,155 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447188385] [2021-10-13 00:15:46,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447188385] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:46,155 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:46,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:15:46,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997769706] [2021-10-13 00:15:46,156 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:15:46,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:15:46,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:15:46,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:15:46,157 INFO L87 Difference]: Start difference. First operand 1062 states and 1326 transitions. cyclomatic complexity: 271 Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2021-10-13 00:15:46,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:46,293 INFO L93 Difference]: Finished difference Result 1510 states and 1866 transitions. [2021-10-13 00:15:46,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:15:46,293 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1510 states and 1866 transitions. [2021-10-13 00:15:46,300 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 1351 [2021-10-13 00:15:46,305 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1510 states to 1510 states and 1866 transitions. [2021-10-13 00:15:46,305 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1510 [2021-10-13 00:15:46,306 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1510 [2021-10-13 00:15:46,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1510 states and 1866 transitions. [2021-10-13 00:15:46,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:15:46,307 INFO L681 BuchiCegarLoop]: Abstraction has 1510 states and 1866 transitions. [2021-10-13 00:15:46,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1510 states and 1866 transitions. [2021-10-13 00:15:46,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1510 to 1094. [2021-10-13 00:15:46,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1094 states, 1094 states have (on average 1.2440585009140768) internal successors, (1361), 1093 states have internal predecessors, (1361), 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) [2021-10-13 00:15:46,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1361 transitions. [2021-10-13 00:15:46,325 INFO L704 BuchiCegarLoop]: Abstraction has 1094 states and 1361 transitions. [2021-10-13 00:15:46,325 INFO L587 BuchiCegarLoop]: Abstraction has 1094 states and 1361 transitions. [2021-10-13 00:15:46,326 INFO L425 BuchiCegarLoop]: ======== Iteration 20============ [2021-10-13 00:15:46,326 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1094 states and 1361 transitions. [2021-10-13 00:15:46,329 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 961 [2021-10-13 00:15:46,329 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:15:46,329 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:15:46,330 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:46,330 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:46,331 INFO L791 eck$LassoCheckResult]: Stem: 55314#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); 55305#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_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~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; 55299#L51 assume !(0 == mp_add_~a3~0 % 256); 55300#L51-1 mp_add_~nb~0 := 4; 55309#L61 assume !(0 == mp_add_~b3~0 % 256); 55312#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 55313#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; 55831#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 55832#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 55890#L76-2 assume !(1 == mp_add_~i~0 % 256); 55891#L77-1 assume !(2 == mp_add_~i~0 % 256); 55882#L78-1 assume !(3 == mp_add_~i~0 % 256); 55883#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 55874#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 55875#L82-2 assume !(1 == mp_add_~i~0 % 256); 55866#L83-1 assume !(2 == mp_add_~i~0 % 256); 55867#L84-1 assume !(3 == mp_add_~i~0 % 256); 55855#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; 55856#L87-1 [2021-10-13 00:15:46,331 INFO L793 eck$LassoCheckResult]: Loop: 55856#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 55851#L91-1 assume !(1 == mp_add_~i~0 % 256); 55852#L92-1 assume !(2 == mp_add_~i~0 % 256); 55848#L93-1 assume !(3 == mp_add_~i~0 % 256); 55847#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 55843#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; 55844#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 56118#L76 assume !(0 == mp_add_~i~0 % 256); 56117#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; 55931#L77-1 assume !(2 == mp_add_~i~0 % 256); 56114#L78-1 assume !(3 == mp_add_~i~0 % 256); 56110#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 56108#L82 assume !(0 == mp_add_~i~0 % 256); 56107#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; 56052#L83-1 assume !(2 == mp_add_~i~0 % 256); 56106#L84-1 assume !(3 == mp_add_~i~0 % 256); 56104#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; 56102#L87-1 assume !(0 == mp_add_~i~0 % 256); 55987#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 55986#L92-1 assume !(2 == mp_add_~i~0 % 256); 55985#L93-1 assume !(3 == mp_add_~i~0 % 256); 55984#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 55625#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; 55626#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 55983#L76 assume !(0 == mp_add_~i~0 % 256); 56129#L76-2 assume !(1 == mp_add_~i~0 % 256); 56128#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; 55928#L78-1 assume !(3 == mp_add_~i~0 % 256); 56115#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 56112#L82 assume !(0 == mp_add_~i~0 % 256); 56109#L82-2 assume !(1 == mp_add_~i~0 % 256); 56030#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; 56026#L84-1 assume !(3 == mp_add_~i~0 % 256); 56022#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; 56023#L87-1 assume !(0 == mp_add_~i~0 % 256); 56050#L91-1 assume !(1 == mp_add_~i~0 % 256); 56046#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 56002#L93-1 assume !(3 == mp_add_~i~0 % 256); 55997#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 55995#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; 55993#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 55909#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 55846#L82 assume !(0 == mp_add_~i~0 % 256); 55599#L82-2 assume !(1 == mp_add_~i~0 % 256); 55593#L83-1 assume !(2 == mp_add_~i~0 % 256); 55595#L84-1 assume !(3 == mp_add_~i~0 % 256); 55972#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 55969#L87-1 assume !(0 == mp_add_~i~0 % 256); 55966#L91-1 assume !(1 == mp_add_~i~0 % 256); 55963#L92-1 assume !(2 == mp_add_~i~0 % 256); 55950#L93-1 assume !(3 == mp_add_~i~0 % 256); 55940#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 55939#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; 55935#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 55936#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 55892#L76-2 assume !(1 == mp_add_~i~0 % 256); 55893#L77-1 assume !(2 == mp_add_~i~0 % 256); 55884#L78-1 assume !(3 == mp_add_~i~0 % 256); 55885#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 55876#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 55877#L82-2 assume !(1 == mp_add_~i~0 % 256); 55868#L83-1 assume !(2 == mp_add_~i~0 % 256); 55869#L84-1 assume !(3 == mp_add_~i~0 % 256); 55858#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; 55856#L87-1 [2021-10-13 00:15:46,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:46,331 INFO L82 PathProgramCache]: Analyzing trace with hash 389365736, now seen corresponding path program 3 times [2021-10-13 00:15:46,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:46,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988476791] [2021-10-13 00:15:46,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:46,332 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:46,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:46,377 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:15:46,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:46,397 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:15:46,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:46,398 INFO L82 PathProgramCache]: Analyzing trace with hash 527933431, now seen corresponding path program 1 times [2021-10-13 00:15:46,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:46,398 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558504585] [2021-10-13 00:15:46,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:46,399 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:46,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:46,480 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-10-13 00:15:46,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:15:46,480 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558504585] [2021-10-13 00:15:46,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558504585] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:46,480 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:46,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:15:46,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313499223] [2021-10-13 00:15:46,481 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:15:46,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:15:46,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:15:46,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:15:46,482 INFO L87 Difference]: Start difference. First operand 1094 states and 1361 transitions. cyclomatic complexity: 274 Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2021-10-13 00:15:46,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:46,590 INFO L93 Difference]: Finished difference Result 1270 states and 1564 transitions. [2021-10-13 00:15:46,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:15:46,591 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1270 states and 1564 transitions. [2021-10-13 00:15:46,595 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 1109 [2021-10-13 00:15:46,599 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1270 states to 1269 states and 1563 transitions. [2021-10-13 00:15:46,599 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1269 [2021-10-13 00:15:46,600 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1269 [2021-10-13 00:15:46,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1269 states and 1563 transitions. [2021-10-13 00:15:46,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:15:46,601 INFO L681 BuchiCegarLoop]: Abstraction has 1269 states and 1563 transitions. [2021-10-13 00:15:46,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states and 1563 transitions. [2021-10-13 00:15:46,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 1054. [2021-10-13 00:15:46,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1054 states, 1054 states have (on average 1.2324478178368121) internal successors, (1299), 1053 states have internal predecessors, (1299), 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) [2021-10-13 00:15:46,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1299 transitions. [2021-10-13 00:15:46,618 INFO L704 BuchiCegarLoop]: Abstraction has 1054 states and 1299 transitions. [2021-10-13 00:15:46,618 INFO L587 BuchiCegarLoop]: Abstraction has 1054 states and 1299 transitions. [2021-10-13 00:15:46,618 INFO L425 BuchiCegarLoop]: ======== Iteration 21============ [2021-10-13 00:15:46,619 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1054 states and 1299 transitions. [2021-10-13 00:15:46,622 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 894 [2021-10-13 00:15:46,622 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:15:46,622 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:15:46,623 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:46,623 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:46,623 INFO L791 eck$LassoCheckResult]: Stem: 57689#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); 57681#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_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~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; 57674#L51 assume !(0 == mp_add_~a3~0 % 256); 57675#L51-1 mp_add_~nb~0 := 4; 57947#L61 assume !(0 == mp_add_~b3~0 % 256); 57946#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 57945#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; 57944#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 57943#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 57941#L76-2 assume !(1 == mp_add_~i~0 % 256); 57942#L77-1 assume !(2 == mp_add_~i~0 % 256); 57937#L78-1 assume !(3 == mp_add_~i~0 % 256); 57938#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 57933#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 57934#L82-2 assume !(1 == mp_add_~i~0 % 256); 57929#L83-1 assume !(2 == mp_add_~i~0 % 256); 57930#L84-1 assume !(3 == mp_add_~i~0 % 256); 57925#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; 57924#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 57922#L91-1 assume !(1 == mp_add_~i~0 % 256); 57923#L92-1 assume !(2 == mp_add_~i~0 % 256); 58688#L93-1 assume !(3 == mp_add_~i~0 % 256); 58686#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 57916#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; 57917#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 57912#L76 assume !(0 == mp_add_~i~0 % 256); 57913#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; 57967#L77-1 [2021-10-13 00:15:46,624 INFO L793 eck$LassoCheckResult]: Loop: 57967#L77-1 assume !(2 == mp_add_~i~0 % 256); 58024#L78-1 assume !(3 == mp_add_~i~0 % 256); 58023#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 58022#L82 assume !(0 == mp_add_~i~0 % 256); 58021#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; 57957#L83-1 assume !(2 == mp_add_~i~0 % 256); 58020#L84-1 assume !(3 == mp_add_~i~0 % 256); 58018#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; 58019#L87-1 assume !(0 == mp_add_~i~0 % 256); 58016#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 58015#L92-1 assume !(2 == mp_add_~i~0 % 256); 58014#L93-1 assume !(3 == mp_add_~i~0 % 256); 57850#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 57851#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; 57843#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 57844#L76 assume !(0 == mp_add_~i~0 % 256); 57834#L76-2 assume !(1 == mp_add_~i~0 % 256); 57835#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; 57964#L78-1 assume !(3 == mp_add_~i~0 % 256); 58008#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 58005#L82 assume !(0 == mp_add_~i~0 % 256); 57995#L82-2 assume !(1 == mp_add_~i~0 % 256); 57993#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; 57955#L84-1 assume !(3 == mp_add_~i~0 % 256); 57983#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 57984#L87-1 assume !(0 == mp_add_~i~0 % 256); 58059#L91-1 assume !(1 == mp_add_~i~0 % 256); 58057#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 58054#L93-1 assume !(3 == mp_add_~i~0 % 256); 58033#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 58032#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; 57971#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 57969#L76 assume !(0 == mp_add_~i~0 % 256); 58004#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; 57967#L77-1 [2021-10-13 00:15:46,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:46,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1546560413, now seen corresponding path program 1 times [2021-10-13 00:15:46,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:46,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193047332] [2021-10-13 00:15:46,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:46,625 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:46,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:46,641 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:15:46,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:46,659 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:15:46,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:46,660 INFO L82 PathProgramCache]: Analyzing trace with hash 686997403, now seen corresponding path program 1 times [2021-10-13 00:15:46,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:46,660 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549106946] [2021-10-13 00:15:46,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:46,661 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:46,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:46,706 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:46,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:15:46,706 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549106946] [2021-10-13 00:15:46,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549106946] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:15:46,706 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993529499] [2021-10-13 00:15:46,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:46,707 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:15:46,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:46,712 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:15:46,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2021-10-13 00:15:46,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:46,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 00:15:46,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:15:47,089 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 00:15:47,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993529499] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:47,089 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:15:47,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-13 00:15:47,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266823946] [2021-10-13 00:15:47,090 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:15:47,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:15:47,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:15:47,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:15:47,091 INFO L87 Difference]: Start difference. First operand 1054 states and 1299 transitions. cyclomatic complexity: 252 Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2021-10-13 00:15:47,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:47,230 INFO L93 Difference]: Finished difference Result 1047 states and 1254 transitions. [2021-10-13 00:15:47,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:15:47,230 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1047 states and 1254 transitions. [2021-10-13 00:15:47,234 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 831 [2021-10-13 00:15:47,237 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1047 states to 988 states and 1188 transitions. [2021-10-13 00:15:47,237 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 988 [2021-10-13 00:15:47,238 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 988 [2021-10-13 00:15:47,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 988 states and 1188 transitions. [2021-10-13 00:15:47,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:15:47,239 INFO L681 BuchiCegarLoop]: Abstraction has 988 states and 1188 transitions. [2021-10-13 00:15:47,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states and 1188 transitions. [2021-10-13 00:15:47,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 862. [2021-10-13 00:15:47,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 862 states, 862 states have (on average 1.2157772621809744) internal successors, (1048), 861 states have internal predecessors, (1048), 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) [2021-10-13 00:15:47,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 862 states to 862 states and 1048 transitions. [2021-10-13 00:15:47,253 INFO L704 BuchiCegarLoop]: Abstraction has 862 states and 1048 transitions. [2021-10-13 00:15:47,253 INFO L587 BuchiCegarLoop]: Abstraction has 862 states and 1048 transitions. [2021-10-13 00:15:47,253 INFO L425 BuchiCegarLoop]: ======== Iteration 22============ [2021-10-13 00:15:47,253 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 862 states and 1048 transitions. [2021-10-13 00:15:47,256 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 706 [2021-10-13 00:15:47,256 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:15:47,256 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:15:47,257 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:47,257 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:47,257 INFO L791 eck$LassoCheckResult]: Stem: 59899#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); 59891#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_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~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; 59884#L51 assume !(0 == mp_add_~a3~0 % 256); 59885#L51-1 mp_add_~nb~0 := 4; 60159#L61 assume !(0 == mp_add_~b3~0 % 256); 60158#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 60157#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; 60156#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 60153#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 60151#L76-2 assume !(1 == mp_add_~i~0 % 256); 60152#L77-1 assume !(2 == mp_add_~i~0 % 256); 60147#L78-1 assume !(3 == mp_add_~i~0 % 256); 60148#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 60143#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 60144#L82-2 assume !(1 == mp_add_~i~0 % 256); 60139#L83-1 assume !(2 == mp_add_~i~0 % 256); 60140#L84-1 assume !(3 == mp_add_~i~0 % 256); 60135#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; 60136#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 60635#L91-1 assume !(1 == mp_add_~i~0 % 256); 60131#L92-1 assume !(2 == mp_add_~i~0 % 256); 60130#L93-1 assume !(3 == mp_add_~i~0 % 256); 60129#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 60033#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; 60034#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 59968#L76 assume !(0 == mp_add_~i~0 % 256); 60448#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; 60200#L77-1 [2021-10-13 00:15:47,258 INFO L793 eck$LassoCheckResult]: Loop: 60200#L77-1 assume !(2 == mp_add_~i~0 % 256); 59952#L78-1 assume !(3 == mp_add_~i~0 % 256); 59953#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 60447#L82 assume !(0 == mp_add_~i~0 % 256); 60031#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; 60032#L83-1 assume !(2 == mp_add_~i~0 % 256); 60445#L84-1 assume !(3 == mp_add_~i~0 % 256); 59944#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; 59945#L87-1 assume !(0 == mp_add_~i~0 % 256); 60444#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 59932#L92-1 assume !(2 == mp_add_~i~0 % 256); 59933#L93-1 assume !(3 == mp_add_~i~0 % 256); 60443#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 60442#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; 59926#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 59924#L76 assume !(0 == mp_add_~i~0 % 256); 59925#L76-2 assume !(1 == mp_add_~i~0 % 256); 60440#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; 60197#L78-1 assume !(3 == mp_add_~i~0 % 256); 60433#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 60439#L82 assume !(0 == mp_add_~i~0 % 256); 60437#L82-2 assume !(1 == mp_add_~i~0 % 256); 60435#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; 60188#L84-1 assume !(3 == mp_add_~i~0 % 256); 60434#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; 60393#L87-1 assume !(0 == mp_add_~i~0 % 256); 60391#L91-1 assume !(1 == mp_add_~i~0 % 256); 60389#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 60274#L93-1 assume !(3 == mp_add_~i~0 % 256); 60386#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 60384#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; 60381#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 60380#L76 assume !(0 == mp_add_~i~0 % 256); 60379#L76-2 assume !(1 == mp_add_~i~0 % 256); 60378#L77-1 assume !(2 == mp_add_~i~0 % 256); 60377#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; 60194#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 60220#L82 assume !(0 == mp_add_~i~0 % 256); 60456#L82-2 assume !(1 == mp_add_~i~0 % 256); 60283#L83-1 assume !(2 == mp_add_~i~0 % 256); 60218#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; 60184#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; 60216#L87-1 assume !(0 == mp_add_~i~0 % 256); 60215#L91-1 assume !(1 == mp_add_~i~0 % 256); 60214#L92-1 assume !(2 == mp_add_~i~0 % 256); 60211#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 60208#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 60207#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; 60205#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 60203#L76 assume !(0 == mp_add_~i~0 % 256); 60225#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; 60200#L77-1 [2021-10-13 00:15:47,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:47,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1546560413, now seen corresponding path program 2 times [2021-10-13 00:15:47,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:47,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520509246] [2021-10-13 00:15:47,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:47,259 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:47,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:47,305 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:15:47,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:47,326 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:15:47,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:47,327 INFO L82 PathProgramCache]: Analyzing trace with hash 1708178002, now seen corresponding path program 1 times [2021-10-13 00:15:47,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:47,328 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316271307] [2021-10-13 00:15:47,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:47,328 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:47,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:47,392 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-13 00:15:47,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:15:47,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316271307] [2021-10-13 00:15:47,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316271307] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:47,393 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:47,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:15:47,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684090104] [2021-10-13 00:15:47,394 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:15:47,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:15:47,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:15:47,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:15:47,395 INFO L87 Difference]: Start difference. First operand 862 states and 1048 transitions. cyclomatic complexity: 192 Second operand has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 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) [2021-10-13 00:15:47,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:47,558 INFO L93 Difference]: Finished difference Result 1054 states and 1261 transitions. [2021-10-13 00:15:47,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:15:47,559 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1054 states and 1261 transitions. [2021-10-13 00:15:47,564 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 875 [2021-10-13 00:15:47,568 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1054 states to 1052 states and 1259 transitions. [2021-10-13 00:15:47,568 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1052 [2021-10-13 00:15:47,569 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1052 [2021-10-13 00:15:47,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1052 states and 1259 transitions. [2021-10-13 00:15:47,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:15:47,570 INFO L681 BuchiCegarLoop]: Abstraction has 1052 states and 1259 transitions. [2021-10-13 00:15:47,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states and 1259 transitions. [2021-10-13 00:15:47,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 890. [2021-10-13 00:15:47,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 890 states, 890 states have (on average 1.20561797752809) internal successors, (1073), 889 states have internal predecessors, (1073), 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) [2021-10-13 00:15:47,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 890 states to 890 states and 1073 transitions. [2021-10-13 00:15:47,587 INFO L704 BuchiCegarLoop]: Abstraction has 890 states and 1073 transitions. [2021-10-13 00:15:47,587 INFO L587 BuchiCegarLoop]: Abstraction has 890 states and 1073 transitions. [2021-10-13 00:15:47,587 INFO L425 BuchiCegarLoop]: ======== Iteration 23============ [2021-10-13 00:15:47,588 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 890 states and 1073 transitions. [2021-10-13 00:15:47,593 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 734 [2021-10-13 00:15:47,594 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:15:47,594 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:15:47,595 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:47,595 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:47,595 INFO L791 eck$LassoCheckResult]: Stem: 61825#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); 61818#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_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~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; 61811#L51 assume !(0 == mp_add_~a3~0 % 256); 61812#L51-1 mp_add_~nb~0 := 4; 62197#L61 assume !(0 == mp_add_~b3~0 % 256); 62196#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 62195#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; 62194#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 62193#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 62192#L76-2 assume !(1 == mp_add_~i~0 % 256); 62191#L77-1 assume !(2 == mp_add_~i~0 % 256); 62190#L78-1 assume !(3 == mp_add_~i~0 % 256); 62189#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 62188#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 62187#L82-2 assume !(1 == mp_add_~i~0 % 256); 62186#L83-1 assume !(2 == mp_add_~i~0 % 256); 62185#L84-1 assume !(3 == mp_add_~i~0 % 256); 62183#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; 62184#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 62585#L91-1 assume !(1 == mp_add_~i~0 % 256); 62179#L92-1 assume !(2 == mp_add_~i~0 % 256); 62178#L93-1 assume !(3 == mp_add_~i~0 % 256); 62177#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 62175#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; 62176#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 62070#L76 assume !(0 == mp_add_~i~0 % 256); 62066#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; 62020#L77-1 [2021-10-13 00:15:47,595 INFO L793 eck$LassoCheckResult]: Loop: 62020#L77-1 assume !(2 == mp_add_~i~0 % 256); 62053#L78-1 assume !(3 == mp_add_~i~0 % 256); 62054#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 62159#L82 assume !(0 == mp_add_~i~0 % 256); 62158#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; 62011#L83-1 assume !(2 == mp_add_~i~0 % 256); 62052#L84-1 assume !(3 == mp_add_~i~0 % 256); 62043#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; 62044#L87-1 assume !(0 == mp_add_~i~0 % 256); 61999#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 62000#L92-1 assume !(2 == mp_add_~i~0 % 256); 61995#L93-1 assume !(3 == mp_add_~i~0 % 256); 61996#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 61991#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; 61992#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 61987#L76 assume !(0 == mp_add_~i~0 % 256); 61988#L76-2 assume !(1 == mp_add_~i~0 % 256); 61984#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; 61980#L78-1 assume !(3 == mp_add_~i~0 % 256); 61981#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 62123#L82 assume !(0 == mp_add_~i~0 % 256); 62122#L82-2 assume !(1 == mp_add_~i~0 % 256); 62120#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; 62009#L84-1 assume !(3 == mp_add_~i~0 % 256); 62116#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; 61982#L87-1 assume !(0 == mp_add_~i~0 % 256); 61983#L91-1 assume !(1 == mp_add_~i~0 % 256); 61958#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 61957#L93-1 assume !(3 == mp_add_~i~0 % 256); 61949#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 61945#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; 61941#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 61938#L76 assume !(0 == mp_add_~i~0 % 256); 61935#L76-2 assume !(1 == mp_add_~i~0 % 256); 61930#L77-1 assume !(2 == mp_add_~i~0 % 256); 61931#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; 62035#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 62095#L82 assume !(0 == mp_add_~i~0 % 256); 62100#L82-2 assume !(1 == mp_add_~i~0 % 256); 62096#L83-1 assume !(2 == mp_add_~i~0 % 256); 62094#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; 61886#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; 61884#L87-1 assume !(0 == mp_add_~i~0 % 256); 61885#L91-1 assume !(1 == mp_add_~i~0 % 256); 61880#L92-1 assume !(2 == mp_add_~i~0 % 256); 61881#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 61872#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 61873#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; 61867#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 61869#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 62209#L82 assume !(0 == mp_add_~i~0 % 256); 62206#L82-2 assume !(1 == mp_add_~i~0 % 256); 62204#L83-1 assume !(2 == mp_add_~i~0 % 256); 62202#L84-1 assume !(3 == mp_add_~i~0 % 256); 62200#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 62201#L87-1 assume !(0 == mp_add_~i~0 % 256); 62102#L91-1 assume !(1 == mp_add_~i~0 % 256); 62097#L92-1 assume !(2 == mp_add_~i~0 % 256); 62099#L93-1 assume !(3 == mp_add_~i~0 % 256); 62025#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 62024#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; 62022#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 62021#L76 assume !(0 == mp_add_~i~0 % 256); 62019#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; 62020#L77-1 [2021-10-13 00:15:47,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:47,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1546560413, now seen corresponding path program 3 times [2021-10-13 00:15:47,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:47,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095712341] [2021-10-13 00:15:47,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:47,597 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:47,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:47,620 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:15:47,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:47,647 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:15:47,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:47,648 INFO L82 PathProgramCache]: Analyzing trace with hash -30286805, now seen corresponding path program 1 times [2021-10-13 00:15:47,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:47,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556236298] [2021-10-13 00:15:47,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:47,649 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:47,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:47,704 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 56 proven. 13 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-13 00:15:47,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:15:47,705 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556236298] [2021-10-13 00:15:47,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556236298] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:15:47,705 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712123634] [2021-10-13 00:15:47,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:47,705 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:15:47,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:47,710 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:15:47,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2021-10-13 00:15:47,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:47,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 00:15:47,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:15:48,301 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 60 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-13 00:15:48,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [712123634] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:15:48,302 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:15:48,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6] total 9 [2021-10-13 00:15:48,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286141024] [2021-10-13 00:15:48,303 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:15:48,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:15:48,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 00:15:48,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-10-13 00:15:48,304 INFO L87 Difference]: Start difference. First operand 890 states and 1073 transitions. cyclomatic complexity: 189 Second operand has 10 states, 9 states have (on average 9.333333333333334) internal successors, (84), 10 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) [2021-10-13 00:15:49,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:49,187 INFO L93 Difference]: Finished difference Result 1068 states and 1230 transitions. [2021-10-13 00:15:49,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-13 00:15:49,188 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1068 states and 1230 transitions. [2021-10-13 00:15:49,190 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 701 [2021-10-13 00:15:49,193 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1068 states to 1034 states and 1196 transitions. [2021-10-13 00:15:49,193 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1034 [2021-10-13 00:15:49,194 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1034 [2021-10-13 00:15:49,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1034 states and 1196 transitions. [2021-10-13 00:15:49,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:15:49,195 INFO L681 BuchiCegarLoop]: Abstraction has 1034 states and 1196 transitions. [2021-10-13 00:15:49,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states and 1196 transitions. [2021-10-13 00:15:49,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 746. [2021-10-13 00:15:49,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 746 states have (on average 1.17828418230563) internal successors, (879), 745 states have internal predecessors, (879), 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) [2021-10-13 00:15:49,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 879 transitions. [2021-10-13 00:15:49,207 INFO L704 BuchiCegarLoop]: Abstraction has 746 states and 879 transitions. [2021-10-13 00:15:49,207 INFO L587 BuchiCegarLoop]: Abstraction has 746 states and 879 transitions. [2021-10-13 00:15:49,207 INFO L425 BuchiCegarLoop]: ======== Iteration 24============ [2021-10-13 00:15:49,207 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 746 states and 879 transitions. [2021-10-13 00:15:49,210 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 540 [2021-10-13 00:15:49,210 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:15:49,210 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:15:49,211 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:49,211 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:49,211 INFO L791 eck$LassoCheckResult]: Stem: 64056#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); 64049#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_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~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; 64042#L51 assume 0 == mp_add_~a3~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 64044#L53 assume !(0 == mp_add_~a2~0 % 256); 64078#L51-1 mp_add_~nb~0 := 4; 64328#L61 assume !(0 == mp_add_~b3~0 % 256); 64327#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 64326#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; 64325#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 64324#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 64323#L76-2 assume !(1 == mp_add_~i~0 % 256); 64322#L77-1 assume !(2 == mp_add_~i~0 % 256); 64321#L78-1 assume !(3 == mp_add_~i~0 % 256); 64320#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 64319#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 64318#L82-2 assume !(1 == mp_add_~i~0 % 256); 64317#L83-1 assume !(2 == mp_add_~i~0 % 256); 64316#L84-1 assume !(3 == mp_add_~i~0 % 256); 64314#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; 64315#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 64524#L91-1 assume !(1 == mp_add_~i~0 % 256); 64310#L92-1 assume !(2 == mp_add_~i~0 % 256); 64309#L93-1 assume !(3 == mp_add_~i~0 % 256); 64308#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 64306#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; 64307#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 64304#L76 assume !(0 == mp_add_~i~0 % 256); 64303#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; 64090#L77-1 [2021-10-13 00:15:49,211 INFO L793 eck$LassoCheckResult]: Loop: 64090#L77-1 assume !(2 == mp_add_~i~0 % 256); 64302#L78-1 assume !(3 == mp_add_~i~0 % 256); 64301#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 64300#L82 assume !(0 == mp_add_~i~0 % 256); 64299#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; 64270#L83-1 assume !(2 == mp_add_~i~0 % 256); 64298#L84-1 assume !(3 == mp_add_~i~0 % 256); 64297#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; 64296#L87-1 assume !(0 == mp_add_~i~0 % 256); 64295#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 64263#L92-1 assume !(2 == mp_add_~i~0 % 256); 64294#L93-1 assume !(3 == mp_add_~i~0 % 256); 64293#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 64292#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; 64290#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 64291#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 64380#L82 assume !(0 == mp_add_~i~0 % 256); 64378#L82-2 assume !(1 == mp_add_~i~0 % 256); 64377#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; 64217#L84-1 assume !(3 == mp_add_~i~0 % 256); 64374#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; 64373#L87-1 assume !(0 == mp_add_~i~0 % 256); 64372#L91-1 assume !(1 == mp_add_~i~0 % 256); 64371#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 64331#L93-1 assume !(3 == mp_add_~i~0 % 256); 64366#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 64365#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; 64364#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 64363#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 64362#L82 assume !(0 == mp_add_~i~0 % 256); 64360#L82-2 assume !(1 == mp_add_~i~0 % 256); 64359#L83-1 assume !(2 == mp_add_~i~0 % 256); 64358#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; 64357#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; 64356#L87-1 assume !(0 == mp_add_~i~0 % 256); 64355#L91-1 assume !(1 == mp_add_~i~0 % 256); 64354#L92-1 assume !(2 == mp_add_~i~0 % 256); 64353#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 64342#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 64352#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; 64351#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 64350#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 64349#L82 assume !(0 == mp_add_~i~0 % 256); 64348#L82-2 assume !(1 == mp_add_~i~0 % 256); 64347#L83-1 assume !(2 == mp_add_~i~0 % 256); 64346#L84-1 assume !(3 == mp_add_~i~0 % 256); 64345#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 64344#L87-1 assume !(0 == mp_add_~i~0 % 256); 64343#L91-1 assume !(1 == mp_add_~i~0 % 256); 64201#L92-1 assume !(2 == mp_add_~i~0 % 256); 64202#L93-1 assume !(3 == mp_add_~i~0 % 256); 64165#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 64166#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; 64161#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 64162#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 64341#L82 assume !(0 == mp_add_~i~0 % 256); 64340#L82-2 assume !(1 == mp_add_~i~0 % 256); 64339#L83-1 assume !(2 == mp_add_~i~0 % 256); 64146#L84-1 assume !(3 == mp_add_~i~0 % 256); 64148#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 64142#L87-1 assume !(0 == mp_add_~i~0 % 256); 64143#L91-1 assume !(1 == mp_add_~i~0 % 256); 64104#L92-1 assume !(2 == mp_add_~i~0 % 256); 64106#L93-1 assume !(3 == mp_add_~i~0 % 256); 64096#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 64095#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; 64093#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 64092#L76 assume !(0 == mp_add_~i~0 % 256); 64089#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; 64090#L77-1 [2021-10-13 00:15:49,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:49,212 INFO L82 PathProgramCache]: Analyzing trace with hash -2142587749, now seen corresponding path program 1 times [2021-10-13 00:15:49,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:49,212 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789595993] [2021-10-13 00:15:49,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:49,212 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:49,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:49,234 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:15:49,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:49,259 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:15:49,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:49,260 INFO L82 PathProgramCache]: Analyzing trace with hash 2056653998, now seen corresponding path program 1 times [2021-10-13 00:15:49,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:49,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091806709] [2021-10-13 00:15:49,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:49,261 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:49,356 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-10-13 00:15:49,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:15:49,357 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091806709] [2021-10-13 00:15:49,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091806709] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:49,357 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:49,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:15:49,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617347256] [2021-10-13 00:15:49,358 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:15:49,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:15:49,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:15:49,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:15:49,358 INFO L87 Difference]: Start difference. First operand 746 states and 879 transitions. cyclomatic complexity: 141 Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:15:49,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:49,484 INFO L93 Difference]: Finished difference Result 750 states and 871 transitions. [2021-10-13 00:15:49,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:15:49,484 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 750 states and 871 transitions. [2021-10-13 00:15:49,487 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 500 [2021-10-13 00:15:49,490 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 750 states to 750 states and 871 transitions. [2021-10-13 00:15:49,490 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 750 [2021-10-13 00:15:49,491 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 750 [2021-10-13 00:15:49,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 750 states and 871 transitions. [2021-10-13 00:15:49,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:15:49,492 INFO L681 BuchiCegarLoop]: Abstraction has 750 states and 871 transitions. [2021-10-13 00:15:49,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states and 871 transitions. [2021-10-13 00:15:49,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 732. [2021-10-13 00:15:49,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 732 states have (on average 1.1625683060109289) internal successors, (851), 731 states have internal predecessors, (851), 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) [2021-10-13 00:15:49,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 851 transitions. [2021-10-13 00:15:49,503 INFO L704 BuchiCegarLoop]: Abstraction has 732 states and 851 transitions. [2021-10-13 00:15:49,503 INFO L587 BuchiCegarLoop]: Abstraction has 732 states and 851 transitions. [2021-10-13 00:15:49,503 INFO L425 BuchiCegarLoop]: ======== Iteration 25============ [2021-10-13 00:15:49,504 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 732 states and 851 transitions. [2021-10-13 00:15:49,505 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 485 [2021-10-13 00:15:49,505 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:15:49,506 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:15:49,506 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:49,506 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:49,507 INFO L791 eck$LassoCheckResult]: Stem: 65562#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); 65552#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_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~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; 65545#L51 assume !(0 == mp_add_~a3~0 % 256); 65546#L51-1 mp_add_~nb~0 := 4; 65772#L61 assume !(0 == mp_add_~b3~0 % 256); 65771#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 65770#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; 65769#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 65768#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 65767#L76-2 assume !(1 == mp_add_~i~0 % 256); 65766#L77-1 assume !(2 == mp_add_~i~0 % 256); 65765#L78-1 assume !(3 == mp_add_~i~0 % 256); 65764#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 65763#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 65762#L82-2 assume !(1 == mp_add_~i~0 % 256); 65761#L83-1 assume !(2 == mp_add_~i~0 % 256); 65760#L84-1 assume !(3 == mp_add_~i~0 % 256); 65606#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 65605#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 65604#L91-1 assume !(1 == mp_add_~i~0 % 256); 65603#L92-1 assume !(2 == mp_add_~i~0 % 256); 65601#L93-1 assume !(3 == mp_add_~i~0 % 256); 65602#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 65597#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; 65598#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 65594#L76 assume !(0 == mp_add_~i~0 % 256); 65592#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; 65593#L77-1 assume !(2 == mp_add_~i~0 % 256); 66046#L78-1 assume !(3 == mp_add_~i~0 % 256); 66044#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 66045#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 66252#L87-1 assume !(0 == mp_add_~i~0 % 256); 66251#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 66250#L92-1 assume !(2 == mp_add_~i~0 % 256); 66249#L93-1 assume !(3 == mp_add_~i~0 % 256); 66248#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 66247#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; 66246#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 66244#L76 assume !(0 == mp_add_~i~0 % 256); 66242#L76-2 assume !(1 == mp_add_~i~0 % 256); 66237#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; 66238#L78-1 [2021-10-13 00:15:49,507 INFO L793 eck$LassoCheckResult]: Loop: 66238#L78-1 assume !(3 == mp_add_~i~0 % 256); 66270#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 66050#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; 66267#L87-1 assume !(0 == mp_add_~i~0 % 256); 65543#L91-1 assume !(1 == mp_add_~i~0 % 256); 65544#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 65560#L93-1 assume !(3 == mp_add_~i~0 % 256); 65561#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 66253#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; 66254#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 65584#L76 assume !(0 == mp_add_~i~0 % 256); 65585#L76-2 assume !(1 == mp_add_~i~0 % 256); 65565#L77-1 assume !(2 == mp_add_~i~0 % 256); 65566#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; 66265#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 65567#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 65568#L87-1 assume !(0 == mp_add_~i~0 % 256); 66274#L91-1 assume !(1 == mp_add_~i~0 % 256); 66273#L92-1 assume !(2 == mp_add_~i~0 % 256); 66272#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 66259#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 66271#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; 66245#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 66243#L76 assume !(0 == mp_add_~i~0 % 256); 66241#L76-2 assume !(1 == mp_add_~i~0 % 256); 66239#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; 66238#L78-1 [2021-10-13 00:15:49,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:49,507 INFO L82 PathProgramCache]: Analyzing trace with hash -480796897, now seen corresponding path program 1 times [2021-10-13 00:15:49,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:49,508 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967148183] [2021-10-13 00:15:49,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:49,508 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:49,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:49,642 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 16 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:49,642 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:15:49,642 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967148183] [2021-10-13 00:15:49,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967148183] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:15:49,642 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034516718] [2021-10-13 00:15:49,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:49,643 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:15:49,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:49,648 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:15:49,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2021-10-13 00:15:49,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:49,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 00:15:49,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:15:50,230 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 00:15:50,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034516718] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:15:50,231 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:15:50,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 9 [2021-10-13 00:15:50,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95196031] [2021-10-13 00:15:50,232 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:15:50,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:50,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1681982875, now seen corresponding path program 1 times [2021-10-13 00:15:50,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:50,233 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019445933] [2021-10-13 00:15:50,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:50,233 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:50,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:50,293 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:50,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:15:50,293 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019445933] [2021-10-13 00:15:50,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019445933] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:15:50,294 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408794405] [2021-10-13 00:15:50,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:50,294 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:15:50,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:50,296 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:15:50,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2021-10-13 00:15:50,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:50,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 00:15:50,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:15:50,724 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 00:15:50,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408794405] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:50,724 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:15:50,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-10-13 00:15:50,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720042592] [2021-10-13 00:15:50,725 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:15:50,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:15:50,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:15:50,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:15:50,726 INFO L87 Difference]: Start difference. First operand 732 states and 851 transitions. cyclomatic complexity: 127 Second operand has 4 states, 3 states have (on average 8.666666666666666) 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) [2021-10-13 00:15:50,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:50,864 INFO L93 Difference]: Finished difference Result 794 states and 890 transitions. [2021-10-13 00:15:50,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:15:50,865 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 794 states and 890 transitions. [2021-10-13 00:15:50,867 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 511 [2021-10-13 00:15:50,868 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 794 states to 790 states and 886 transitions. [2021-10-13 00:15:50,868 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 790 [2021-10-13 00:15:50,868 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 790 [2021-10-13 00:15:50,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 790 states and 886 transitions. [2021-10-13 00:15:50,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:15:50,869 INFO L681 BuchiCegarLoop]: Abstraction has 790 states and 886 transitions. [2021-10-13 00:15:50,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states and 886 transitions. [2021-10-13 00:15:50,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 700. [2021-10-13 00:15:50,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 700 states have (on average 1.1328571428571428) internal successors, (793), 699 states have internal predecessors, (793), 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) [2021-10-13 00:15:50,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 793 transitions. [2021-10-13 00:15:50,879 INFO L704 BuchiCegarLoop]: Abstraction has 700 states and 793 transitions. [2021-10-13 00:15:50,879 INFO L587 BuchiCegarLoop]: Abstraction has 700 states and 793 transitions. [2021-10-13 00:15:50,879 INFO L425 BuchiCegarLoop]: ======== Iteration 26============ [2021-10-13 00:15:50,880 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 700 states and 793 transitions. [2021-10-13 00:15:50,882 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 457 [2021-10-13 00:15:50,882 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:15:50,882 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:15:50,889 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:50,889 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-10-13 00:15:50,889 INFO L791 eck$LassoCheckResult]: Stem: 67301#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); 67290#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_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~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; 67282#L51 assume !(0 == mp_add_~a3~0 % 256); 67283#L51-1 mp_add_~nb~0 := 4; 67549#L61 assume !(0 == mp_add_~b3~0 % 256); 67548#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 67547#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; 67546#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 67545#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 67544#L76-2 assume !(1 == mp_add_~i~0 % 256); 67543#L77-1 assume !(2 == mp_add_~i~0 % 256); 67542#L78-1 assume !(3 == mp_add_~i~0 % 256); 67541#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 67540#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 67539#L82-2 assume !(1 == mp_add_~i~0 % 256); 67538#L83-1 assume !(2 == mp_add_~i~0 % 256); 67537#L84-1 assume !(3 == mp_add_~i~0 % 256); 67346#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 67344#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 67345#L91-1 assume !(1 == mp_add_~i~0 % 256); 67340#L92-1 assume !(2 == mp_add_~i~0 % 256); 67341#L93-1 assume !(3 == mp_add_~i~0 % 256); 67336#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 67337#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; 67332#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 67333#L76 assume !(0 == mp_add_~i~0 % 256); 67328#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; 67329#L77-1 assume !(2 == mp_add_~i~0 % 256); 67760#L78-1 assume !(3 == mp_add_~i~0 % 256); 67758#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 67759#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 67944#L87-1 assume !(0 == mp_add_~i~0 % 256); 67943#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 67942#L92-1 assume !(2 == mp_add_~i~0 % 256); 67941#L93-1 assume !(3 == mp_add_~i~0 % 256); 67939#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 67937#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; 67935#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 67933#L76 assume !(0 == mp_add_~i~0 % 256); 67931#L76-2 assume !(1 == mp_add_~i~0 % 256); 67927#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; 67928#L78-1 [2021-10-13 00:15:50,890 INFO L793 eck$LassoCheckResult]: Loop: 67928#L78-1 assume !(3 == mp_add_~i~0 % 256); 67977#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 67728#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; 67976#L87-1 assume !(0 == mp_add_~i~0 % 256); 67975#L91-1 assume !(1 == mp_add_~i~0 % 256); 67974#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 67772#L93-1 assume !(3 == mp_add_~i~0 % 256); 67963#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 67964#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; 67326#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 67327#L76 assume !(0 == mp_add_~i~0 % 256); 67302#L76-2 assume !(1 == mp_add_~i~0 % 256); 67303#L77-1 assume !(2 == mp_add_~i~0 % 256); 67973#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; 67967#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 67971#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; 67970#L87-1 assume !(0 == mp_add_~i~0 % 256); 67969#L91-1 assume !(1 == mp_add_~i~0 % 256); 67968#L92-1 assume !(2 == mp_add_~i~0 % 256); 67966#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 67296#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 67297#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; 67962#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 67960#L76 assume !(0 == mp_add_~i~0 % 256); 67959#L76-2 assume !(1 == mp_add_~i~0 % 256); 67958#L77-1 assume !(2 == mp_add_~i~0 % 256); 67956#L78-1 assume !(3 == mp_add_~i~0 % 256); 67957#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 67952#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 67953#L87-1 assume !(0 == mp_add_~i~0 % 256); 67948#L91-1 assume !(1 == mp_add_~i~0 % 256); 67949#L92-1 assume !(2 == mp_add_~i~0 % 256); 67945#L93-1 assume !(3 == mp_add_~i~0 % 256); 67940#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 67938#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; 67936#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 67934#L76 assume !(0 == mp_add_~i~0 % 256); 67932#L76-2 assume !(1 == mp_add_~i~0 % 256); 67929#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; 67928#L78-1 [2021-10-13 00:15:50,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:50,890 INFO L82 PathProgramCache]: Analyzing trace with hash -480796897, now seen corresponding path program 2 times [2021-10-13 00:15:50,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:50,890 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802091334] [2021-10-13 00:15:50,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:50,891 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:50,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:51,018 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 16 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:51,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:15:51,019 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802091334] [2021-10-13 00:15:51,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802091334] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:15:51,019 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1788524603] [2021-10-13 00:15:51,019 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:15:51,020 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:15:51,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:51,022 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:15:51,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2021-10-13 00:15:51,332 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 00:15:51,332 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:15:51,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 00:15:51,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:15:51,604 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 00:15:51,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1788524603] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:15:51,604 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:15:51,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 9 [2021-10-13 00:15:51,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207226500] [2021-10-13 00:15:51,605 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:15:51,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:51,605 INFO L82 PathProgramCache]: Analyzing trace with hash 511778416, now seen corresponding path program 2 times [2021-10-13 00:15:51,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:51,606 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473180233] [2021-10-13 00:15:51,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:51,606 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:51,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:51,665 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 12 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:51,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:15:51,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473180233] [2021-10-13 00:15:51,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473180233] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:15:51,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013965442] [2021-10-13 00:15:51,666 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:15:51,666 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:15:51,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:51,668 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:15:51,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Waiting until timeout for monitored process [2021-10-13 00:15:51,984 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-13 00:15:51,984 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:15:51,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 00:15:51,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:15:52,301 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-13 00:15:52,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013965442] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:52,301 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:15:52,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2021-10-13 00:15:52,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257805237] [2021-10-13 00:15:52,302 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:15:52,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:15:52,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 00:15:52,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-10-13 00:15:52,303 INFO L87 Difference]: Start difference. First operand 700 states and 793 transitions. cyclomatic complexity: 101 Second operand has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 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) [2021-10-13 00:15:52,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:52,737 INFO L93 Difference]: Finished difference Result 658 states and 701 transitions. [2021-10-13 00:15:52,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 00:15:52,738 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 658 states and 701 transitions. [2021-10-13 00:15:52,741 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 137 [2021-10-13 00:15:52,743 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 658 states to 650 states and 693 transitions. [2021-10-13 00:15:52,743 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 650 [2021-10-13 00:15:52,743 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 650 [2021-10-13 00:15:52,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 650 states and 693 transitions. [2021-10-13 00:15:52,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:15:52,744 INFO L681 BuchiCegarLoop]: Abstraction has 650 states and 693 transitions. [2021-10-13 00:15:52,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states and 693 transitions. [2021-10-13 00:15:52,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 411. [2021-10-13 00:15:52,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 411 states have (on average 1.0827250608272505) internal successors, (445), 410 states have internal predecessors, (445), 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) [2021-10-13 00:15:52,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 445 transitions. [2021-10-13 00:15:52,752 INFO L704 BuchiCegarLoop]: Abstraction has 411 states and 445 transitions. [2021-10-13 00:15:52,752 INFO L587 BuchiCegarLoop]: Abstraction has 411 states and 445 transitions. [2021-10-13 00:15:52,752 INFO L425 BuchiCegarLoop]: ======== Iteration 27============ [2021-10-13 00:15:52,752 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 411 states and 445 transitions. [2021-10-13 00:15:52,753 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 44 [2021-10-13 00:15:52,754 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:15:52,754 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:15:52,754 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] [2021-10-13 00:15:52,754 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:52,755 INFO L791 eck$LassoCheckResult]: Stem: 68915#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); 68908#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_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~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; 68901#L51 assume !(0 == mp_add_~a3~0 % 256); 68902#L51-1 mp_add_~nb~0 := 4; 68982#L61 assume !(0 == mp_add_~b3~0 % 256); 68981#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 68980#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; 68979#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 68978#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 68977#L76-2 assume !(1 == mp_add_~i~0 % 256); 68976#L77-1 assume !(2 == mp_add_~i~0 % 256); 68975#L78-1 assume !(3 == mp_add_~i~0 % 256); 68974#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 68973#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 68972#L82-2 assume !(1 == mp_add_~i~0 % 256); 68971#L83-1 assume !(2 == mp_add_~i~0 % 256); 68970#L84-1 assume !(3 == mp_add_~i~0 % 256); 68969#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 68968#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 68967#L91-1 assume !(1 == mp_add_~i~0 % 256); 68966#L92-1 assume !(2 == mp_add_~i~0 % 256); 68965#L93-1 assume !(3 == mp_add_~i~0 % 256); 68964#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 68963#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; 68962#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 68961#L76 assume !(0 == mp_add_~i~0 % 256); 68960#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; 68959#L77-1 assume !(2 == mp_add_~i~0 % 256); 68958#L78-1 assume !(3 == mp_add_~i~0 % 256); 68956#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 68952#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 68953#L87-1 assume !(0 == mp_add_~i~0 % 256); 68948#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 68949#L92-1 assume !(2 == mp_add_~i~0 % 256); 68944#L93-1 assume !(3 == mp_add_~i~0 % 256); 68945#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 68940#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; 68941#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 68936#L76 assume !(0 == mp_add_~i~0 % 256); 68937#L76-2 assume !(1 == mp_add_~i~0 % 256); 68932#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; 68933#L78-1 assume !(3 == mp_add_~i~0 % 256); 69239#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 69187#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 69238#L87-1 assume !(0 == mp_add_~i~0 % 256); 69237#L91-1 assume !(1 == mp_add_~i~0 % 256); 69236#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 69235#L93-1 assume !(3 == mp_add_~i~0 % 256); 69234#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 69233#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; 69232#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 69231#L76 assume !(0 == mp_add_~i~0 % 256); 69230#L76-2 assume !(1 == mp_add_~i~0 % 256); 69229#L77-1 assume !(2 == mp_add_~i~0 % 256); 69226#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; 69227#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 69254#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 69307#L87-1 assume !(0 == mp_add_~i~0 % 256); 69259#L91-1 assume !(1 == mp_add_~i~0 % 256); 69260#L92-1 assume !(2 == mp_add_~i~0 % 256); 69256#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 68912#L94-1 [2021-10-13 00:15:52,755 INFO L793 eck$LassoCheckResult]: Loop: 68912#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 68906#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; 68907#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 68930#L76 assume !(0 == mp_add_~i~0 % 256); 68916#L76-2 assume !(1 == mp_add_~i~0 % 256); 68917#L77-1 assume !(2 == mp_add_~i~0 % 256); 68918#L78-1 assume !(3 == mp_add_~i~0 % 256); 68922#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 69263#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 69262#L87-1 assume !(0 == mp_add_~i~0 % 256); 69255#L91-1 assume !(1 == mp_add_~i~0 % 256); 68897#L92-1 assume !(2 == mp_add_~i~0 % 256); 68898#L93-1 assume !(3 == mp_add_~i~0 % 256); 68912#L94-1 [2021-10-13 00:15:52,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:52,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1762667543, now seen corresponding path program 1 times [2021-10-13 00:15:52,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:52,756 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355991077] [2021-10-13 00:15:52,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:52,756 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:52,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:52,866 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 45 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-10-13 00:15:52,867 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:15:52,867 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355991077] [2021-10-13 00:15:52,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355991077] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:15:52,867 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022043664] [2021-10-13 00:15:52,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:52,867 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:15:52,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:52,873 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:15:52,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Waiting until timeout for monitored process [2021-10-13 00:15:53,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:53,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 00:15:53,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:15:53,553 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 45 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-10-13 00:15:53,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022043664] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:15:53,554 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:15:53,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 8 [2021-10-13 00:15:53,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39124384] [2021-10-13 00:15:53,554 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:15:53,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:53,555 INFO L82 PathProgramCache]: Analyzing trace with hash 672830572, now seen corresponding path program 1 times [2021-10-13 00:15:53,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:53,555 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62971323] [2021-10-13 00:15:53,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:53,555 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:53,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:53,562 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:15:53,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:53,565 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:15:53,668 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:15:53,668 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:15:53,668 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:15:53,668 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:15:53,668 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:15:53,668 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:53,669 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:15:53,669 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:15:53,669 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_2-2.i_Iteration27_Loop [2021-10-13 00:15:53,669 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:15:53,669 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:15:53,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:15:53,676 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:15:53,904 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:15:53,905 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:15:53,905 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:53,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:53,912 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:53,914 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:15:53,914 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:15:53,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Waiting until timeout for monitored process [2021-10-13 00:15:53,941 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:15:53,941 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: [] [2021-10-13 00:15:53,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:53,974 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:53,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:53,975 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:53,976 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:15:53,977 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:15:54,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Waiting until timeout for monitored process [2021-10-13 00:15:54,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:54,079 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:54,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:54,080 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:54,082 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:15:54,082 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:15:54,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Waiting until timeout for monitored process [2021-10-13 00:15:54,922 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:15:54,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:54,926 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:15:54,926 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:15:54,926 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:15:54,926 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:15:54,926 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:15:54,926 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:54,926 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:15:54,926 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:15:54,926 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_2-2.i_Iteration27_Loop [2021-10-13 00:15:54,926 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:15:54,926 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:15:54,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:15:54,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:15:55,145 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:15:55,146 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:15:55,146 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:55,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:55,147 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:55,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Waiting until timeout for monitored process [2021-10-13 00:15:55,148 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 [2021-10-13 00:15:55,154 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:55,155 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:55,155 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:55,155 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:55,155 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:15:55,156 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:15:55,156 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:55,169 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:55,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:55,189 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:55,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:55,190 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:55,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Waiting until timeout for monitored process [2021-10-13 00:15:55,191 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 [2021-10-13 00:15:55,198 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:55,198 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:55,198 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:55,198 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:55,198 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:15:55,200 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:15:55,200 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:55,203 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:55,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:55,222 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-13 00:15:55,222 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:55,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:55,223 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:55,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Waiting until timeout for monitored process [2021-10-13 00:15:55,224 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 [2021-10-13 00:15:55,231 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:55,231 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:55,231 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:55,231 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:55,231 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:15:55,232 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:15:55,232 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:55,235 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:55,253 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Ended with exit code 0 [2021-10-13 00:15:55,253 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:55,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:55,254 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:55,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Waiting until timeout for monitored process [2021-10-13 00:15:55,255 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 [2021-10-13 00:15:55,262 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:55,262 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:55,262 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:55,262 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:55,263 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:15:55,265 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:15:55,265 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:55,269 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:55,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:55,288 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-13 00:15:55,288 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:55,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:55,289 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:55,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Waiting until timeout for monitored process [2021-10-13 00:15:55,290 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 [2021-10-13 00:15:55,297 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:55,297 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:55,297 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:55,297 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:55,297 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:15:55,299 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:15:55,299 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:55,302 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:55,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:55,321 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:55,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:55,322 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:55,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Waiting until timeout for monitored process [2021-10-13 00:15:55,323 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 [2021-10-13 00:15:55,330 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:55,330 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:55,330 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:55,330 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:55,330 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:15:55,333 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:15:55,333 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:55,338 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:55,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:55,357 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-13 00:15:55,357 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:55,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:55,358 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:55,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Waiting until timeout for monitored process [2021-10-13 00:15:55,359 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 [2021-10-13 00:15:55,366 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:55,366 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:55,366 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:55,366 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:55,366 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:15:55,368 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:15:55,368 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:55,372 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:55,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:55,390 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:55,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:55,391 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:55,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Waiting until timeout for monitored process [2021-10-13 00:15:55,392 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 [2021-10-13 00:15:55,400 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:55,400 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:55,400 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:55,400 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:55,400 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:15:55,404 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:15:55,404 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:55,410 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:55,428 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Ended with exit code 0 [2021-10-13 00:15:55,428 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-13 00:15:55,428 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:55,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:55,429 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:55,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Waiting until timeout for monitored process [2021-10-13 00:15:55,431 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 [2021-10-13 00:15:55,438 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:55,439 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:15:55,439 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:55,439 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:55,439 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:55,439 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:15:55,442 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:15:55,442 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:55,446 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:55,464 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Ended with exit code 0 [2021-10-13 00:15:55,464 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:55,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:55,465 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:55,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Waiting until timeout for monitored process [2021-10-13 00:15:55,467 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 [2021-10-13 00:15:55,474 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:55,474 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:15:55,474 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:55,474 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:55,474 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:55,474 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:15:55,477 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:15:55,477 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:55,483 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:55,502 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Ended with exit code 0 [2021-10-13 00:15:55,502 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-13 00:15:55,502 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:55,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:55,503 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:55,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Waiting until timeout for monitored process [2021-10-13 00:15:55,505 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 [2021-10-13 00:15:55,512 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:55,512 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-13 00:15:55,513 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:55,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:55,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:55,513 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:15:55,515 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:15:55,515 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:55,521 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:55,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:55,540 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:55,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:55,541 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:55,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Waiting until timeout for monitored process [2021-10-13 00:15:55,542 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 [2021-10-13 00:15:55,549 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:55,550 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-13 00:15:55,550 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:55,550 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:55,550 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:55,550 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:15:55,554 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:15:55,554 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:55,563 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:55,582 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Ended with exit code 0 [2021-10-13 00:15:55,582 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-13 00:15:55,582 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:55,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:55,583 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:55,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Waiting until timeout for monitored process [2021-10-13 00:15:55,584 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 [2021-10-13 00:15:55,592 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:55,592 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:15:55,592 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:55,592 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:55,592 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:55,592 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:15:55,594 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:15:55,595 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:55,602 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:55,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Ended with exit code 0 [2021-10-13 00:15:55,621 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:55,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:55,622 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:55,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Waiting until timeout for monitored process [2021-10-13 00:15:55,623 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 [2021-10-13 00:15:55,630 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:55,631 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:15:55,631 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:55,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:55,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:55,631 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:15:55,636 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:15:55,636 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:55,651 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:55,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:55,670 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-13 00:15:55,670 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:55,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:55,671 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:55,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Waiting until timeout for monitored process [2021-10-13 00:15:55,672 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 [2021-10-13 00:15:55,679 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:55,679 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:15:55,679 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:55,680 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:55,680 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:55,680 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:15:55,681 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:15:55,681 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:55,685 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:55,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Ended with exit code 0 [2021-10-13 00:15:55,704 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:55,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:55,705 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:55,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Waiting until timeout for monitored process [2021-10-13 00:15:55,706 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 [2021-10-13 00:15:55,713 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:55,713 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:15:55,713 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:55,714 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:55,714 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:55,714 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:15:55,725 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:15:55,725 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:55,731 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:55,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:55,751 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-13 00:15:55,751 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:55,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:55,751 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:55,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Waiting until timeout for monitored process [2021-10-13 00:15:55,752 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:15:55,760 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:55,760 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:15:55,760 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:55,760 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:55,760 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:55,760 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-13 00:15:55,763 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:15:55,763 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:55,769 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:55,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Ended with exit code 0 [2021-10-13 00:15:55,788 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:55,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:55,789 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:55,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Waiting until timeout for monitored process [2021-10-13 00:15:55,790 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 [2021-10-13 00:15:55,798 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:55,798 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:15:55,798 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:55,798 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:55,798 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:55,798 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-13 00:15:55,803 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:15:55,804 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:55,814 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:55,832 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Ended with exit code 0 [2021-10-13 00:15:55,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:15:55,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 00:15:55,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:15:55,833 INFO L87 Difference]: Start difference. First operand 411 states and 445 transitions. cyclomatic complexity: 37 Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 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) [2021-10-13 00:15:55,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:55,928 INFO L93 Difference]: Finished difference Result 398 states and 430 transitions. [2021-10-13 00:15:55,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:15:55,928 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 398 states and 430 transitions. [2021-10-13 00:15:55,929 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 44 [2021-10-13 00:15:55,930 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 398 states to 398 states and 430 transitions. [2021-10-13 00:15:55,930 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 398 [2021-10-13 00:15:55,930 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 398 [2021-10-13 00:15:55,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 398 states and 430 transitions. [2021-10-13 00:15:55,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:15:55,931 INFO L681 BuchiCegarLoop]: Abstraction has 398 states and 430 transitions. [2021-10-13 00:15:55,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states and 430 transitions. [2021-10-13 00:15:55,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2021-10-13 00:15:55,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 398 states have (on average 1.0804020100502512) internal successors, (430), 397 states have internal predecessors, (430), 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) [2021-10-13 00:15:55,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 430 transitions. [2021-10-13 00:15:55,936 INFO L704 BuchiCegarLoop]: Abstraction has 398 states and 430 transitions. [2021-10-13 00:15:55,936 INFO L587 BuchiCegarLoop]: Abstraction has 398 states and 430 transitions. [2021-10-13 00:15:55,936 INFO L425 BuchiCegarLoop]: ======== Iteration 28============ [2021-10-13 00:15:55,936 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 398 states and 430 transitions. [2021-10-13 00:15:55,937 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 44 [2021-10-13 00:15:55,937 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:15:55,937 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:15:55,938 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] [2021-10-13 00:15:55,938 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:55,938 INFO L791 eck$LassoCheckResult]: Stem: 69918#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); 69909#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_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~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; 69902#L51 assume 0 == mp_add_~a3~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 69904#L53 assume !(0 == mp_add_~a2~0 % 256); 69938#L51-1 mp_add_~nb~0 := 4; 70050#L61 assume !(0 == mp_add_~b3~0 % 256); 70049#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 70048#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; 70047#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 70046#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 70045#L76-2 assume !(1 == mp_add_~i~0 % 256); 70044#L77-1 assume !(2 == mp_add_~i~0 % 256); 70043#L78-1 assume !(3 == mp_add_~i~0 % 256); 70042#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 70041#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 70040#L82-2 assume !(1 == mp_add_~i~0 % 256); 70039#L83-1 assume !(2 == mp_add_~i~0 % 256); 70038#L84-1 assume !(3 == mp_add_~i~0 % 256); 70036#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; 70037#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 70070#L91-1 assume !(1 == mp_add_~i~0 % 256); 70069#L92-1 assume !(2 == mp_add_~i~0 % 256); 70022#L93-1 assume !(3 == mp_add_~i~0 % 256); 70023#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 70014#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; 70015#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 70059#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 70060#L82 assume !(0 == mp_add_~i~0 % 256); 70055#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; 70056#L83-1 assume !(2 == mp_add_~i~0 % 256); 70051#L84-1 assume !(3 == mp_add_~i~0 % 256); 70052#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 70031#L87-1 assume !(0 == mp_add_~i~0 % 256); 70032#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 70024#L92-1 assume !(2 == mp_add_~i~0 % 256); 70025#L93-1 assume !(3 == mp_add_~i~0 % 256); 70016#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 70017#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; 69947#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 69948#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 69942#L82 assume !(0 == mp_add_~i~0 % 256); 69943#L82-2 assume !(1 == mp_add_~i~0 % 256); 69939#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; 69927#L84-1 assume !(3 == mp_add_~i~0 % 256); 69922#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 69910#L87-1 assume !(0 == mp_add_~i~0 % 256); 69899#L91-1 assume !(1 == mp_add_~i~0 % 256); 69900#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 69901#L93-1 assume !(3 == mp_add_~i~0 % 256); 69917#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 69907#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; 69908#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 70112#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 70113#L82 assume !(0 == mp_add_~i~0 % 256); 69930#L82-2 assume !(1 == mp_add_~i~0 % 256); 69931#L83-1 assume !(2 == mp_add_~i~0 % 256); 70291#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; 70290#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 70289#L87-1 assume !(0 == mp_add_~i~0 % 256); 70288#L91-1 assume !(1 == mp_add_~i~0 % 256); 70287#L92-1 assume !(2 == mp_add_~i~0 % 256); 70286#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 69913#L94-1 [2021-10-13 00:15:55,938 INFO L793 eck$LassoCheckResult]: Loop: 69913#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 69914#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; 69932#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 69933#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 69923#L82 assume !(0 == mp_add_~i~0 % 256); 69924#L82-2 assume !(1 == mp_add_~i~0 % 256); 69935#L83-1 assume !(2 == mp_add_~i~0 % 256); 69936#L84-1 assume !(3 == mp_add_~i~0 % 256); 70296#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 70295#L87-1 assume !(0 == mp_add_~i~0 % 256); 70294#L91-1 assume !(1 == mp_add_~i~0 % 256); 70293#L92-1 assume !(2 == mp_add_~i~0 % 256); 70292#L93-1 assume !(3 == mp_add_~i~0 % 256); 69913#L94-1 [2021-10-13 00:15:55,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:55,939 INFO L82 PathProgramCache]: Analyzing trace with hash 866077905, now seen corresponding path program 1 times [2021-10-13 00:15:55,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:55,939 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130488910] [2021-10-13 00:15:55,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:55,939 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:55,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:56,040 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 43 proven. 5 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-10-13 00:15:56,041 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:15:56,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130488910] [2021-10-13 00:15:56,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130488910] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:15:56,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773745391] [2021-10-13 00:15:56,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:56,041 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:15:56,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:56,045 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:15:56,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (114)] Waiting until timeout for monitored process [2021-10-13 00:15:56,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:56,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 00:15:56,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:15:56,979 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 43 proven. 3 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-10-13 00:15:56,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [773745391] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:15:56,979 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:15:56,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 9 [2021-10-13 00:15:56,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663310023] [2021-10-13 00:15:56,980 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:15:56,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:56,980 INFO L82 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 1 times [2021-10-13 00:15:56,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:56,981 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840292754] [2021-10-13 00:15:56,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:56,981 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:56,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:56,987 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:15:56,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:56,992 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:15:57,083 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:15:57,083 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:15:57,083 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:15:57,083 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:15:57,083 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:15:57,083 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:57,083 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:15:57,083 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:15:57,083 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_2-2.i_Iteration28_Loop [2021-10-13 00:15:57,083 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:15:57,083 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:15:57,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:15:57,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:15:57,313 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:15:57,313 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:15:57,313 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:57,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:57,322 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:57,323 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:15:57,323 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:15:57,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Waiting until timeout for monitored process [2021-10-13 00:15:57,353 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:15:57,353 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: [] [2021-10-13 00:15:57,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:57,386 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:57,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:57,387 INFO L229 MonitoredProcess]: Starting monitored process 116 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:57,389 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:15:57,389 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:15:57,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Waiting until timeout for monitored process [2021-10-13 00:15:57,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:57,476 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:57,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:57,477 INFO L229 MonitoredProcess]: Starting monitored process 117 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:57,478 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:15:57,478 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:15:57,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (117)] Waiting until timeout for monitored process [2021-10-13 00:15:58,813 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:15:58,816 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (117)] Ended with exit code 0 [2021-10-13 00:15:58,816 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:15:58,816 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:15:58,816 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:15:58,817 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:15:58,817 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:15:58,817 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:58,817 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:15:58,817 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:15:58,817 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_2-2.i_Iteration28_Loop [2021-10-13 00:15:58,817 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:15:58,817 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:15:58,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:15:58,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:15:58,999 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:15:58,999 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:15:59,012 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:59,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:59,014 INFO L229 MonitoredProcess]: Starting monitored process 118 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:59,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (118)] Waiting until timeout for monitored process [2021-10-13 00:15:59,015 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 [2021-10-13 00:15:59,023 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:59,023 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:59,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:59,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:59,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:15:59,025 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:15:59,025 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:59,028 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:59,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (118)] Ended with exit code 0 [2021-10-13 00:15:59,046 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:59,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:59,047 INFO L229 MonitoredProcess]: Starting monitored process 119 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:59,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (119)] Waiting until timeout for monitored process [2021-10-13 00:15:59,048 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 [2021-10-13 00:15:59,055 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:59,055 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:59,055 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:59,055 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:59,055 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:15:59,056 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:15:59,056 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:59,058 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:59,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (119)] Ended with exit code 0 [2021-10-13 00:15:59,076 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-13 00:15:59,076 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:59,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:59,077 INFO L229 MonitoredProcess]: Starting monitored process 120 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:59,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (120)] Waiting until timeout for monitored process [2021-10-13 00:15:59,078 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 [2021-10-13 00:15:59,085 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:59,085 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:59,085 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:59,085 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:59,085 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:15:59,088 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:15:59,088 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:59,092 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:59,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (120)] Ended with exit code 0 [2021-10-13 00:15:59,110 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:59,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:59,111 INFO L229 MonitoredProcess]: Starting monitored process 121 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:59,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (121)] Waiting until timeout for monitored process [2021-10-13 00:15:59,112 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 [2021-10-13 00:15:59,119 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:59,119 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:59,119 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:59,119 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:59,119 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:15:59,120 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:15:59,120 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:59,136 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:59,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (121)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:59,157 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-13 00:15:59,157 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:59,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:59,158 INFO L229 MonitoredProcess]: Starting monitored process 122 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:59,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (122)] Waiting until timeout for monitored process [2021-10-13 00:15:59,159 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 [2021-10-13 00:15:59,166 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:59,166 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:59,166 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:59,166 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:59,166 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:15:59,170 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:15:59,170 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:59,176 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:59,194 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (122)] Ended with exit code 0 [2021-10-13 00:15:59,195 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:59,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:59,195 INFO L229 MonitoredProcess]: Starting monitored process 123 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:59,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (123)] Waiting until timeout for monitored process [2021-10-13 00:15:59,196 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 [2021-10-13 00:15:59,203 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:59,204 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:59,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:59,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:59,204 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:15:59,205 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:15:59,205 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:59,208 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:59,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (123)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:59,227 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-13 00:15:59,227 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:59,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:59,228 INFO L229 MonitoredProcess]: Starting monitored process 124 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:59,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (124)] Waiting until timeout for monitored process [2021-10-13 00:15:59,229 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 [2021-10-13 00:15:59,236 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:59,236 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:59,237 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:59,237 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:59,237 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:15:59,242 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:15:59,242 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:59,248 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:59,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (124)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:59,266 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:59,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:59,267 INFO L229 MonitoredProcess]: Starting monitored process 125 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:59,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (125)] Waiting until timeout for monitored process [2021-10-13 00:15:59,268 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 [2021-10-13 00:15:59,276 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:15:59,276 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:59,276 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:59,276 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:59,276 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:15:59,278 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:15:59,278 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:59,282 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:59,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (125)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:59,301 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-13 00:15:59,301 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:59,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:59,303 INFO L229 MonitoredProcess]: Starting monitored process 126 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:59,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (126)] Waiting until timeout for monitored process [2021-10-13 00:15:59,304 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 [2021-10-13 00:15:59,312 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:59,312 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:15:59,312 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:59,312 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:59,312 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:59,312 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:15:59,315 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:15:59,315 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:59,321 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:59,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (126)] Ended with exit code 0 [2021-10-13 00:15:59,341 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:59,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:59,342 INFO L229 MonitoredProcess]: Starting monitored process 127 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:59,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (127)] Waiting until timeout for monitored process [2021-10-13 00:15:59,344 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 [2021-10-13 00:15:59,351 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:59,351 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:15:59,351 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:59,351 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:59,351 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:59,351 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:15:59,352 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:15:59,352 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:59,356 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:59,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (127)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:59,374 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-13 00:15:59,374 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:59,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:59,375 INFO L229 MonitoredProcess]: Starting monitored process 128 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:59,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (128)] Waiting until timeout for monitored process [2021-10-13 00:15:59,379 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 [2021-10-13 00:15:59,387 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:59,387 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-13 00:15:59,387 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:59,387 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:59,387 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:59,387 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:15:59,391 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:15:59,391 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:59,405 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:59,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (128)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:59,424 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:59,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:59,424 INFO L229 MonitoredProcess]: Starting monitored process 129 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:59,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (129)] Waiting until timeout for monitored process [2021-10-13 00:15:59,425 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 [2021-10-13 00:15:59,433 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:59,433 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-13 00:15:59,433 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:59,433 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:59,433 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:59,433 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:15:59,435 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:15:59,435 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:59,441 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:59,459 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (129)] Ended with exit code 0 [2021-10-13 00:15:59,459 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-13 00:15:59,460 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:59,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:59,460 INFO L229 MonitoredProcess]: Starting monitored process 130 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:59,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (130)] Waiting until timeout for monitored process [2021-10-13 00:15:59,461 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 [2021-10-13 00:15:59,469 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:59,469 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:15:59,469 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:59,469 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:59,469 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:59,469 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:15:59,474 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:15:59,474 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:59,486 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:59,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (130)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:59,504 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:59,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:59,505 INFO L229 MonitoredProcess]: Starting monitored process 131 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:59,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (131)] Waiting until timeout for monitored process [2021-10-13 00:15:59,506 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 [2021-10-13 00:15:59,513 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:59,514 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:15:59,514 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:59,514 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:59,514 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:59,514 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:15:59,517 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:15:59,517 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:59,527 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:59,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (131)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:59,546 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-13 00:15:59,546 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:59,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:59,547 INFO L229 MonitoredProcess]: Starting monitored process 132 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:59,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (132)] Waiting until timeout for monitored process [2021-10-13 00:15:59,548 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 [2021-10-13 00:15:59,555 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:59,555 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:15:59,555 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:59,555 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:59,555 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:59,555 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:15:59,558 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:15:59,559 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:59,565 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:59,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (132)] Ended with exit code 0 [2021-10-13 00:15:59,583 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:59,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:59,584 INFO L229 MonitoredProcess]: Starting monitored process 133 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:59,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (133)] Waiting until timeout for monitored process [2021-10-13 00:15:59,585 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 [2021-10-13 00:15:59,592 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:59,592 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:15:59,592 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:59,592 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:59,592 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:59,592 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:15:59,594 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:15:59,594 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:59,598 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:59,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (133)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:59,616 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-13 00:15:59,616 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:59,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:59,617 INFO L229 MonitoredProcess]: Starting monitored process 134 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:59,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (134)] Waiting until timeout for monitored process [2021-10-13 00:15:59,618 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 [2021-10-13 00:15:59,626 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:59,626 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:15:59,626 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:59,626 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:59,626 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:59,626 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-13 00:15:59,631 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:15:59,631 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:59,641 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:59,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (134)] Forceful destruction successful, exit code 0 [2021-10-13 00:15:59,660 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:59,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:59,661 INFO L229 MonitoredProcess]: Starting monitored process 135 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:59,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (135)] Waiting until timeout for monitored process [2021-10-13 00:15:59,662 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 [2021-10-13 00:15:59,669 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:15:59,669 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:15:59,669 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:15:59,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:15:59,670 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:15:59,670 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-13 00:15:59,673 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:15:59,673 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:15:59,680 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:15:59,698 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (135)] Ended with exit code 0 [2021-10-13 00:15:59,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:15:59,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-13 00:15:59,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-10-13 00:15:59,699 INFO L87 Difference]: Start difference. First operand 398 states and 430 transitions. cyclomatic complexity: 35 Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 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) [2021-10-13 00:16:00,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:16:00,076 INFO L93 Difference]: Finished difference Result 513 states and 550 transitions. [2021-10-13 00:16:00,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 00:16:00,077 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 513 states and 550 transitions. [2021-10-13 00:16:00,079 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 100 [2021-10-13 00:16:00,080 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 513 states to 509 states and 546 transitions. [2021-10-13 00:16:00,080 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 509 [2021-10-13 00:16:00,080 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 509 [2021-10-13 00:16:00,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 509 states and 546 transitions. [2021-10-13 00:16:00,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:16:00,081 INFO L681 BuchiCegarLoop]: Abstraction has 509 states and 546 transitions. [2021-10-13 00:16:00,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states and 546 transitions. [2021-10-13 00:16:00,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 391. [2021-10-13 00:16:00,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 391 states have (on average 1.0767263427109974) internal successors, (421), 390 states have internal predecessors, (421), 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) [2021-10-13 00:16:00,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 421 transitions. [2021-10-13 00:16:00,087 INFO L704 BuchiCegarLoop]: Abstraction has 391 states and 421 transitions. [2021-10-13 00:16:00,087 INFO L587 BuchiCegarLoop]: Abstraction has 391 states and 421 transitions. [2021-10-13 00:16:00,087 INFO L425 BuchiCegarLoop]: ======== Iteration 29============ [2021-10-13 00:16:00,087 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 391 states and 421 transitions. [2021-10-13 00:16:00,088 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 44 [2021-10-13 00:16:00,088 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:16:00,089 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:16:00,089 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] [2021-10-13 00:16:00,089 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:00,090 INFO L791 eck$LassoCheckResult]: Stem: 71032#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); 71023#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_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~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; 71016#L51 assume 0 == mp_add_~a3~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 71018#L53 assume 0 == mp_add_~a2~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 71043#L55 assume 0 == mp_add_~a1~0 % 256;mp_add_~na~0 := mp_add_~na~0 % 256 - 1; 71025#L51-1 mp_add_~nb~0 := 4; 71026#L61 assume !(0 == mp_add_~b3~0 % 256); 71029#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 71030#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; 71161#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 71159#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 71160#L76-2 assume !(1 == mp_add_~i~0 % 256); 71239#L77-1 assume !(2 == mp_add_~i~0 % 256); 71238#L78-1 assume !(3 == mp_add_~i~0 % 256); 71237#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 71236#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 71235#L82-2 assume !(1 == mp_add_~i~0 % 256); 71234#L83-1 assume !(2 == mp_add_~i~0 % 256); 71233#L84-1 assume !(3 == mp_add_~i~0 % 256); 71232#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 71231#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 71229#L91-1 assume !(1 == mp_add_~i~0 % 256); 71228#L92-1 assume !(2 == mp_add_~i~0 % 256); 71227#L93-1 assume !(3 == mp_add_~i~0 % 256); 71226#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 71225#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; 71223#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 71224#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 71218#L82 assume !(0 == mp_add_~i~0 % 256); 71219#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; 71214#L83-1 assume !(2 == mp_add_~i~0 % 256); 71215#L84-1 assume !(3 == mp_add_~i~0 % 256); 71210#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 71211#L87-1 assume !(0 == mp_add_~i~0 % 256); 71206#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 71207#L92-1 assume !(2 == mp_add_~i~0 % 256); 71202#L93-1 assume !(3 == mp_add_~i~0 % 256); 71203#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 71198#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; 71199#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 71285#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 71284#L82 assume !(0 == mp_add_~i~0 % 256); 71283#L82-2 assume !(1 == mp_add_~i~0 % 256); 71282#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; 71281#L84-1 assume !(3 == mp_add_~i~0 % 256); 71280#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 71279#L87-1 assume !(0 == mp_add_~i~0 % 256); 71278#L91-1 assume !(1 == mp_add_~i~0 % 256); 71277#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 71276#L93-1 assume !(3 == mp_add_~i~0 % 256); 71275#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 71274#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; 71273#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 71272#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 71271#L82 assume !(0 == mp_add_~i~0 % 256); 71270#L82-2 assume !(1 == mp_add_~i~0 % 256); 71269#L83-1 assume !(2 == mp_add_~i~0 % 256); 71268#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; 71267#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 71266#L87-1 assume !(0 == mp_add_~i~0 % 256); 71265#L91-1 assume !(1 == mp_add_~i~0 % 256); 71264#L92-1 assume !(2 == mp_add_~i~0 % 256); 71263#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 71167#L94-1 [2021-10-13 00:16:00,090 INFO L793 eck$LassoCheckResult]: Loop: 71167#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 71262#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; 71261#L75 assume !(mp_add_~i~0 % 256 < mp_add_~na~0 % 256); 71260#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 71259#L82 assume !(0 == mp_add_~i~0 % 256); 71258#L82-2 assume !(1 == mp_add_~i~0 % 256); 71257#L83-1 assume !(2 == mp_add_~i~0 % 256); 71256#L84-1 assume !(3 == mp_add_~i~0 % 256); 71255#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 71254#L87-1 assume !(0 == mp_add_~i~0 % 256); 71253#L91-1 assume !(1 == mp_add_~i~0 % 256); 71252#L92-1 assume !(2 == mp_add_~i~0 % 256); 71166#L93-1 assume !(3 == mp_add_~i~0 % 256); 71167#L94-1 [2021-10-13 00:16:00,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:00,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1520812614, now seen corresponding path program 1 times [2021-10-13 00:16:00,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:00,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498774466] [2021-10-13 00:16:00,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:00,091 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:00,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:00,118 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:16:00,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:00,155 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:16:00,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:00,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1233229496, now seen corresponding path program 2 times [2021-10-13 00:16:00,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:00,156 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937108381] [2021-10-13 00:16:00,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:00,157 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:00,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:00,162 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:16:00,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:00,166 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:16:00,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:00,166 INFO L82 PathProgramCache]: Analyzing trace with hash -2088026333, now seen corresponding path program 2 times [2021-10-13 00:16:00,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:00,167 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232086256] [2021-10-13 00:16:00,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:00,167 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:00,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:00,291 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 36 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:16:00,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:16:00,291 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232086256] [2021-10-13 00:16:00,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232086256] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:16:00,291 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [749003464] [2021-10-13 00:16:00,291 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:16:00,291 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:16:00,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:00,293 INFO L229 MonitoredProcess]: Starting monitored process 136 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:16:00,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (136)] Waiting until timeout for monitored process [2021-10-13 00:16:00,809 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-13 00:16:00,809 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:16:00,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 00:16:00,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:16:01,377 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 20 proven. 16 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-10-13 00:16:01,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [749003464] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:16:01,378 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:16:01,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 13 [2021-10-13 00:16:01,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070165909] [2021-10-13 00:16:01,502 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:16:01,502 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:16:01,502 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:16:01,502 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:16:01,502 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:16:01,502 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:01,502 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:16:01,502 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:16:01,502 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_2-2.i_Iteration29_Loop [2021-10-13 00:16:01,502 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:16:01,502 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:16:01,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:16:01,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:16:01,697 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:16:01,697 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:16:01,697 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:01,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:01,699 INFO L229 MonitoredProcess]: Starting monitored process 137 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:01,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (137)] Waiting until timeout for monitored process [2021-10-13 00:16:01,700 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:16:01,700 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:16:01,714 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:16:01,714 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: [] [2021-10-13 00:16:01,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (137)] Forceful destruction successful, exit code 0 [2021-10-13 00:16:01,737 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:01,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:01,738 INFO L229 MonitoredProcess]: Starting monitored process 138 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:01,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (138)] Waiting until timeout for monitored process [2021-10-13 00:16:01,742 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:16:01,742 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:16:01,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (138)] Forceful destruction successful, exit code 0 [2021-10-13 00:16:01,790 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:01,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:01,791 INFO L229 MonitoredProcess]: Starting monitored process 139 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:01,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (139)] Waiting until timeout for monitored process [2021-10-13 00:16:01,793 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:16:01,793 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:16:02,460 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:16:02,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (139)] Ended with exit code 0 [2021-10-13 00:16:02,464 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:16:02,464 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:16:02,464 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:16:02,464 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:16:02,464 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:16:02,464 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:02,464 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:16:02,464 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:16:02,464 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_2-2.i_Iteration29_Loop [2021-10-13 00:16:02,464 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:16:02,464 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:16:02,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:16:02,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:16:02,616 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:16:02,617 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:16:02,617 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:02,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:02,618 INFO L229 MonitoredProcess]: Starting monitored process 140 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:02,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (140)] Waiting until timeout for monitored process [2021-10-13 00:16:02,619 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 [2021-10-13 00:16:02,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:16:02,625 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:16:02,626 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:16:02,626 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:16:02,626 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:16:02,627 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:16:02,627 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:16:02,629 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:16:02,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (140)] Forceful destruction successful, exit code 0 [2021-10-13 00:16:02,647 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:02,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:02,648 INFO L229 MonitoredProcess]: Starting monitored process 141 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:02,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (141)] Waiting until timeout for monitored process [2021-10-13 00:16:02,649 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 [2021-10-13 00:16:02,656 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:16:02,656 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:16:02,656 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:16:02,656 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:16:02,656 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:16:02,658 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:16:02,658 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:16:02,661 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:16:02,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (141)] Forceful destruction successful, exit code 0 [2021-10-13 00:16:02,679 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-13 00:16:02,679 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:02,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:02,680 INFO L229 MonitoredProcess]: Starting monitored process 142 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:02,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (142)] Waiting until timeout for monitored process [2021-10-13 00:16:02,681 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 [2021-10-13 00:16:02,688 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:16:02,688 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:16:02,688 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:16:02,688 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:16:02,689 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:16:02,690 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:16:02,690 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:16:02,692 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:16:02,711 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (142)] Ended with exit code 0 [2021-10-13 00:16:02,711 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:02,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:02,712 INFO L229 MonitoredProcess]: Starting monitored process 143 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:02,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (143)] Waiting until timeout for monitored process [2021-10-13 00:16:02,713 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:16:02,720 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:16:02,720 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:16:02,720 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:16:02,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:16:02,720 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:16:02,723 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:16:02,723 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:16:02,727 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:16:02,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (143)] Forceful destruction successful, exit code 0 [2021-10-13 00:16:02,745 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-13 00:16:02,745 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:02,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:02,746 INFO L229 MonitoredProcess]: Starting monitored process 144 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:02,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (144)] Waiting until timeout for monitored process [2021-10-13 00:16:02,747 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 [2021-10-13 00:16:02,754 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:16:02,754 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:16:02,755 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:16:02,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:16:02,755 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:16:02,756 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:16:02,756 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:16:02,760 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:16:02,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (144)] Forceful destruction successful, exit code 0 [2021-10-13 00:16:02,779 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:02,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:02,780 INFO L229 MonitoredProcess]: Starting monitored process 145 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:02,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (145)] Waiting until timeout for monitored process [2021-10-13 00:16:02,781 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 [2021-10-13 00:16:02,788 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:16:02,788 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:16:02,788 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:16:02,788 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:16:02,789 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:16:02,792 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:16:02,792 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:16:02,797 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:16:02,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (145)] Forceful destruction successful, exit code 0 [2021-10-13 00:16:02,817 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-13 00:16:02,817 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:02,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:02,818 INFO L229 MonitoredProcess]: Starting monitored process 146 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:02,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (146)] Waiting until timeout for monitored process [2021-10-13 00:16:02,819 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 [2021-10-13 00:16:02,826 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:16:02,826 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:16:02,826 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:16:02,826 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:16:02,826 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:16:02,828 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:16:02,828 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:16:02,832 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:16:02,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (146)] Forceful destruction successful, exit code 0 [2021-10-13 00:16:02,851 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:02,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:02,852 INFO L229 MonitoredProcess]: Starting monitored process 147 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:02,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (147)] Waiting until timeout for monitored process [2021-10-13 00:16:02,853 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 [2021-10-13 00:16:02,860 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:16:02,860 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:16:02,860 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:16:02,860 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:16:02,860 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:16:02,864 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:16:02,864 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:16:02,870 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:16:02,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (147)] Forceful destruction successful, exit code 0 [2021-10-13 00:16:02,889 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-13 00:16:02,889 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:02,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:02,889 INFO L229 MonitoredProcess]: Starting monitored process 148 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:02,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (148)] Waiting until timeout for monitored process [2021-10-13 00:16:02,890 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:16:02,897 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:16:02,897 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:16:02,898 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:16:02,898 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:16:02,898 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:16:02,898 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:16:02,899 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:16:02,899 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:16:02,903 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:16:02,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (148)] Forceful destruction successful, exit code 0 [2021-10-13 00:16:02,921 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:02,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:02,922 INFO L229 MonitoredProcess]: Starting monitored process 149 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:02,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (149)] Waiting until timeout for monitored process [2021-10-13 00:16:02,923 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 [2021-10-13 00:16:02,930 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:16:02,930 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:16:02,930 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:16:02,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:16:02,930 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:16:02,930 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:16:02,933 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:16:02,933 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:16:02,939 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:16:02,958 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (149)] Ended with exit code 0 [2021-10-13 00:16:02,958 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-13 00:16:02,958 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:02,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:02,959 INFO L229 MonitoredProcess]: Starting monitored process 150 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:02,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (150)] Waiting until timeout for monitored process [2021-10-13 00:16:02,960 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 [2021-10-13 00:16:02,967 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:16:02,967 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-13 00:16:02,967 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:16:02,967 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:16:02,967 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:16:02,967 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:16:02,970 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:16:02,970 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:16:02,976 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:16:02,994 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (150)] Ended with exit code 0 [2021-10-13 00:16:02,994 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:02,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:02,995 INFO L229 MonitoredProcess]: Starting monitored process 151 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:02,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (151)] Waiting until timeout for monitored process [2021-10-13 00:16:02,996 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 [2021-10-13 00:16:03,003 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:16:03,003 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-13 00:16:03,003 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:16:03,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:16:03,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:16:03,003 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:16:03,007 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:16:03,007 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:16:03,017 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:16:03,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (151)] Ended with exit code 0 [2021-10-13 00:16:03,036 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-13 00:16:03,036 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:03,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:03,037 INFO L229 MonitoredProcess]: Starting monitored process 152 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:03,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (152)] Waiting until timeout for monitored process [2021-10-13 00:16:03,038 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 [2021-10-13 00:16:03,045 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:16:03,046 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:16:03,046 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:16:03,046 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:16:03,046 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:16:03,046 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:16:03,049 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:16:03,049 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:16:03,059 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:16:03,078 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (152)] Ended with exit code 0 [2021-10-13 00:16:03,078 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:03,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:03,079 INFO L229 MonitoredProcess]: Starting monitored process 153 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:03,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (153)] Waiting until timeout for monitored process [2021-10-13 00:16:03,080 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 [2021-10-13 00:16:03,087 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:16:03,087 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:16:03,088 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:16:03,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:16:03,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:16:03,088 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:16:03,093 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:16:03,093 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:16:03,107 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:16:03,125 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (153)] Ended with exit code 0 [2021-10-13 00:16:03,126 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-13 00:16:03,126 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:03,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:03,126 INFO L229 MonitoredProcess]: Starting monitored process 154 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:03,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (154)] Waiting until timeout for monitored process [2021-10-13 00:16:03,127 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 [2021-10-13 00:16:03,134 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:16:03,135 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:16:03,135 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:16:03,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:16:03,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:16:03,135 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:16:03,136 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:16:03,137 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:16:03,140 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:16:03,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (154)] Forceful destruction successful, exit code 0 [2021-10-13 00:16:03,159 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:03,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:03,160 INFO L229 MonitoredProcess]: Starting monitored process 155 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:03,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (155)] Waiting until timeout for monitored process [2021-10-13 00:16:03,161 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 [2021-10-13 00:16:03,168 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:16:03,168 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:16:03,168 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:16:03,168 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:16:03,168 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:16:03,168 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:16:03,172 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:16:03,172 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:16:03,178 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:16:03,197 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (155)] Ended with exit code 0 [2021-10-13 00:16:03,197 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-13 00:16:03,197 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:03,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:03,198 INFO L229 MonitoredProcess]: Starting monitored process 156 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:03,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (156)] Waiting until timeout for monitored process [2021-10-13 00:16:03,199 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 [2021-10-13 00:16:03,206 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:16:03,206 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:16:03,206 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:16:03,206 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:16:03,207 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:16:03,207 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-13 00:16:03,209 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:16:03,209 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:16:03,215 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:16:03,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (156)] Forceful destruction successful, exit code 0 [2021-10-13 00:16:03,234 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:03,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:03,235 INFO L229 MonitoredProcess]: Starting monitored process 157 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:03,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (157)] Waiting until timeout for monitored process [2021-10-13 00:16:03,236 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 [2021-10-13 00:16:03,243 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:16:03,244 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:16:03,244 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:16:03,244 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:16:03,244 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:16:03,244 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-13 00:16:03,249 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:16:03,249 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:16:03,259 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:16:03,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (157)] Forceful destruction successful, exit code 0 [2021-10-13 00:16:03,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:16:03,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-13 00:16:03,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-10-13 00:16:03,278 INFO L87 Difference]: Start difference. First operand 391 states and 421 transitions. cyclomatic complexity: 33 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) [2021-10-13 00:16:03,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:16:03,978 INFO L93 Difference]: Finished difference Result 310 states and 327 transitions. [2021-10-13 00:16:03,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 00:16:03,978 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 310 states and 327 transitions. [2021-10-13 00:16:03,980 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-10-13 00:16:03,980 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 310 states to 127 states and 132 transitions. [2021-10-13 00:16:03,980 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 127 [2021-10-13 00:16:03,980 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 127 [2021-10-13 00:16:03,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 127 states and 132 transitions. [2021-10-13 00:16:03,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:16:03,980 INFO L681 BuchiCegarLoop]: Abstraction has 127 states and 132 transitions. [2021-10-13 00:16:03,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states and 132 transitions. [2021-10-13 00:16:03,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 93. [2021-10-13 00:16:03,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 93 states have (on average 1.053763440860215) internal successors, (98), 92 states have internal predecessors, (98), 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) [2021-10-13 00:16:03,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 98 transitions. [2021-10-13 00:16:03,982 INFO L704 BuchiCegarLoop]: Abstraction has 93 states and 98 transitions. [2021-10-13 00:16:03,982 INFO L587 BuchiCegarLoop]: Abstraction has 93 states and 98 transitions. [2021-10-13 00:16:03,982 INFO L425 BuchiCegarLoop]: ======== Iteration 30============ [2021-10-13 00:16:03,982 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 93 states and 98 transitions. [2021-10-13 00:16:03,982 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-10-13 00:16:03,982 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:16:03,982 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:16:03,983 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:03,983 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:03,983 INFO L791 eck$LassoCheckResult]: Stem: 71975#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); 71976#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_~a~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~b~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; 71980#L51 assume !(0 == mp_add_~a3~0 % 256); 71981#L51-1 mp_add_~nb~0 := 4; 71982#L61 assume !(0 == mp_add_~b3~0 % 256); 71983#L61-1 mp_add_~carry~0 := 0;mp_add_~i~0 := 0; 71997#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; 72008#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 72007#L76 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~a0~0 % 256; 72006#L76-2 assume !(1 == mp_add_~i~0 % 256); 72005#L77-1 assume !(2 == mp_add_~i~0 % 256); 72004#L78-1 assume !(3 == mp_add_~i~0 % 256); 72003#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 72001#L82 assume 0 == mp_add_~i~0 % 256;mp_add_~partial_sum~0 := mp_add_~partial_sum~0 % 65536 + mp_add_~b0~0 % 256; 72002#L82-2 assume !(1 == mp_add_~i~0 % 256); 72055#L83-1 assume !(2 == mp_add_~i~0 % 256); 72053#L84-1 assume !(3 == mp_add_~i~0 % 256); 72051#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 72049#L87-1 assume 0 == mp_add_~i~0 % 256;mp_add_~r0~0 := mp_add_~partial_sum~0; 72047#L91-1 assume !(1 == mp_add_~i~0 % 256); 72045#L92-1 assume !(2 == mp_add_~i~0 % 256); 72043#L93-1 assume !(3 == mp_add_~i~0 % 256); 72041#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 72039#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; 72037#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 72035#L76 assume !(0 == mp_add_~i~0 % 256); 72033#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; 72031#L77-1 assume !(2 == mp_add_~i~0 % 256); 72012#L78-1 assume !(3 == mp_add_~i~0 % 256); 72013#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 71991#L82 assume !(0 == mp_add_~i~0 % 256); 71992#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; 72056#L83-1 assume !(2 == mp_add_~i~0 % 256); 72054#L84-1 assume !(3 == mp_add_~i~0 % 256); 72052#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 72050#L87-1 assume !(0 == mp_add_~i~0 % 256); 72048#L91-1 assume 1 == mp_add_~i~0 % 256;mp_add_~r1~0 := mp_add_~partial_sum~0; 72046#L92-1 assume !(2 == mp_add_~i~0 % 256); 72044#L93-1 assume !(3 == mp_add_~i~0 % 256); 72042#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 72040#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; 72038#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 72036#L76 assume !(0 == mp_add_~i~0 % 256); 72034#L76-2 assume !(1 == mp_add_~i~0 % 256); 72032#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; 72030#L78-1 assume !(3 == mp_add_~i~0 % 256); 72029#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 72028#L82 assume !(0 == mp_add_~i~0 % 256); 72027#L82-2 assume !(1 == mp_add_~i~0 % 256); 72026#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; 72025#L84-1 assume !(3 == mp_add_~i~0 % 256); 72024#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 72023#L87-1 assume !(0 == mp_add_~i~0 % 256); 72022#L91-1 assume !(1 == mp_add_~i~0 % 256); 72021#L92-1 assume 2 == mp_add_~i~0 % 256;mp_add_~r2~0 := mp_add_~partial_sum~0; 72020#L93-1 assume !(3 == mp_add_~i~0 % 256); 72019#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 72018#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; 72017#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 72016#L76 assume !(0 == mp_add_~i~0 % 256); 72015#L76-2 assume !(1 == mp_add_~i~0 % 256); 72014#L77-1 assume !(2 == mp_add_~i~0 % 256); 72011#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; 72009#L75-1 assume mp_add_~i~0 % 256 < mp_add_~nb~0 % 256; 72010#L82 assume !(0 == mp_add_~i~0 % 256); 71999#L82-2 assume !(1 == mp_add_~i~0 % 256); 72000#L83-1 assume !(2 == mp_add_~i~0 % 256); 71994#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; 71995#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 72064#L87-1 assume !(0 == mp_add_~i~0 % 256); 72067#L91-1 assume !(1 == mp_add_~i~0 % 256); 72066#L92-1 assume !(2 == mp_add_~i~0 % 256); 72065#L93-1 assume 3 == mp_add_~i~0 % 256;mp_add_~r3~0 := mp_add_~partial_sum~0; 71996#L94-1 [2021-10-13 00:16:03,983 INFO L793 eck$LassoCheckResult]: Loop: 71996#L94-1 mp_add_~i~0 := 1 + mp_add_~i~0 % 256; 71989#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; 71990#L75 assume mp_add_~i~0 % 256 < mp_add_~na~0 % 256; 71998#L76 assume !(0 == mp_add_~i~0 % 256); 71986#L76-2 assume !(1 == mp_add_~i~0 % 256); 71984#L77-1 assume !(2 == mp_add_~i~0 % 256); 71985#L78-1 assume !(3 == mp_add_~i~0 % 256); 71993#L75-1 assume !(mp_add_~i~0 % 256 < mp_add_~nb~0 % 256); 71987#L81 assume !(mp_add_~partial_sum~0 % 65536 > 255); 71988#L87-1 assume !(0 == mp_add_~i~0 % 256); 71979#L91-1 assume !(1 == mp_add_~i~0 % 256); 71977#L92-1 assume !(2 == mp_add_~i~0 % 256); 71978#L93-1 assume !(3 == mp_add_~i~0 % 256); 71996#L94-1 [2021-10-13 00:16:03,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:03,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1777905539, now seen corresponding path program 1 times [2021-10-13 00:16:03,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:03,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952149967] [2021-10-13 00:16:03,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:03,984 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:04,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:04,023 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:16:04,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:04,065 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:16:04,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:04,065 INFO L82 PathProgramCache]: Analyzing trace with hash 672830572, now seen corresponding path program 2 times [2021-10-13 00:16:04,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:04,065 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399262818] [2021-10-13 00:16:04,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:04,066 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:04,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:04,072 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:16:04,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:04,075 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:16:04,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:04,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1948062352, now seen corresponding path program 1 times [2021-10-13 00:16:04,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:04,076 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147986269] [2021-10-13 00:16:04,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:04,076 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:04,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:04,205 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 40 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:16:04,206 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:16:04,206 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147986269] [2021-10-13 00:16:04,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147986269] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:16:04,206 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150015046] [2021-10-13 00:16:04,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:04,206 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:16:04,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:04,207 INFO L229 MonitoredProcess]: Starting monitored process 158 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:16:04,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (158)] Waiting until timeout for monitored process [2021-10-13 00:16:04,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:04,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 00:16:04,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:16:05,400 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 61 proven. 20 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-10-13 00:16:05,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1150015046] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:16:05,400 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:16:05,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6] total 12 [2021-10-13 00:16:05,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786255210] [2021-10-13 00:16:05,506 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:16:05,506 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:16:05,507 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:16:05,507 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:16:05,507 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:16:05,507 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:05,507 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:16:05,507 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:16:05,507 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_2-2.i_Iteration30_Loop [2021-10-13 00:16:05,507 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:16:05,507 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:16:05,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:16:05,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:16:05,725 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:16:05,725 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:16:05,725 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:05,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:05,727 INFO L229 MonitoredProcess]: Starting monitored process 159 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:05,728 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:16:05,728 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:16:05,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (159)] Waiting until timeout for monitored process [2021-10-13 00:16:05,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (159)] Forceful destruction successful, exit code 0 [2021-10-13 00:16:05,814 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:05,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:05,817 INFO L229 MonitoredProcess]: Starting monitored process 160 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:05,818 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:16:05,818 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:16:05,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (160)] Waiting until timeout for monitored process [2021-10-13 00:16:06,643 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:16:06,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (160)] Ended with exit code 0 [2021-10-13 00:16:06,647 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:16:06,647 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:16:06,648 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:16:06,648 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:16:06,648 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:16:06,648 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:06,648 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:16:06,648 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:16:06,648 INFO L133 ssoRankerPreferences]: Filename of dumped script: byte_add_2-2.i_Iteration30_Loop [2021-10-13 00:16:06,648 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:16:06,648 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:16:06,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:16:06,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:16:06,826 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:16:06,826 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:16:06,826 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:06,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:06,827 INFO L229 MonitoredProcess]: Starting monitored process 161 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:06,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (161)] Waiting until timeout for monitored process [2021-10-13 00:16:06,828 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 [2021-10-13 00:16:06,835 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:16:06,835 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:16:06,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:16:06,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:16:06,835 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:16:06,836 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:16:06,836 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:16:06,838 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:16:06,856 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (161)] Ended with exit code 0 [2021-10-13 00:16:06,856 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:06,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:06,857 INFO L229 MonitoredProcess]: Starting monitored process 162 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:06,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (162)] Waiting until timeout for monitored process [2021-10-13 00:16:06,858 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:16:06,864 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:16:06,865 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:16:06,865 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:16:06,865 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:16:06,865 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:16:06,867 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:16:06,867 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:16:06,870 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:16:06,888 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (162)] Ended with exit code 0 [2021-10-13 00:16:06,888 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-13 00:16:06,889 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:06,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:06,889 INFO L229 MonitoredProcess]: Starting monitored process 163 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:06,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (163)] Waiting until timeout for monitored process [2021-10-13 00:16:06,890 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:16:06,897 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:16:06,897 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:16:06,897 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:16:06,897 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:16:06,897 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:16:06,899 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:16:06,899 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:16:06,901 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:16:06,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (163)] Forceful destruction successful, exit code 0 [2021-10-13 00:16:06,920 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:06,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:06,920 INFO L229 MonitoredProcess]: Starting monitored process 164 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:06,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (164)] Waiting until timeout for monitored process [2021-10-13 00:16:06,921 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 [2021-10-13 00:16:06,929 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:16:06,929 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:16:06,929 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:16:06,929 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:16:06,929 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:16:06,931 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:16:06,931 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:16:06,935 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:16:06,954 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (164)] Ended with exit code 0 [2021-10-13 00:16:06,954 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-13 00:16:06,954 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:06,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:06,955 INFO L229 MonitoredProcess]: Starting monitored process 165 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:06,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (165)] Waiting until timeout for monitored process [2021-10-13 00:16:06,956 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 [2021-10-13 00:16:06,963 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:16:06,963 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:16:06,963 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:16:06,963 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:16:06,963 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:16:06,965 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:16:06,965 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:16:06,968 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:16:06,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (165)] Forceful destruction successful, exit code 0 [2021-10-13 00:16:06,986 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:06,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:06,987 INFO L229 MonitoredProcess]: Starting monitored process 166 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:06,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (166)] Waiting until timeout for monitored process [2021-10-13 00:16:06,988 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 [2021-10-13 00:16:06,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:16:06,995 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:16:06,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:16:06,995 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:16:06,995 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:16:06,998 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:16:06,998 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:16:07,003 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:16:07,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (166)] Forceful destruction successful, exit code 0 [2021-10-13 00:16:07,022 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-13 00:16:07,022 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:07,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:07,022 INFO L229 MonitoredProcess]: Starting monitored process 167 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:07,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (167)] Waiting until timeout for monitored process [2021-10-13 00:16:07,023 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 [2021-10-13 00:16:07,031 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:16:07,031 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:16:07,031 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:16:07,031 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:16:07,031 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:16:07,033 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:16:07,033 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:16:07,037 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:16:07,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (167)] Ended with exit code 0 [2021-10-13 00:16:07,055 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:07,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:07,056 INFO L229 MonitoredProcess]: Starting monitored process 168 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:07,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (168)] Waiting until timeout for monitored process [2021-10-13 00:16:07,057 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:16:07,064 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:16:07,064 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:16:07,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:16:07,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:16:07,065 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:16:07,069 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:16:07,069 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:16:07,075 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:16:07,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (168)] Ended with exit code 0 [2021-10-13 00:16:07,093 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-13 00:16:07,094 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:07,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:07,094 INFO L229 MonitoredProcess]: Starting monitored process 169 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:07,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (169)] Waiting until timeout for monitored process [2021-10-13 00:16:07,095 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 [2021-10-13 00:16:07,102 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:16:07,102 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:16:07,102 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:16:07,102 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:16:07,102 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:16:07,103 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:16:07,104 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:16:07,104 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:16:07,108 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:16:07,126 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (169)] Ended with exit code 0 [2021-10-13 00:16:07,126 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:07,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:07,126 INFO L229 MonitoredProcess]: Starting monitored process 170 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:07,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (170)] Waiting until timeout for monitored process [2021-10-13 00:16:07,127 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 [2021-10-13 00:16:07,134 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:16:07,135 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:16:07,135 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:16:07,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:16:07,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:16:07,135 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 00:16:07,138 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 00:16:07,138 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:16:07,144 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:16:07,162 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (170)] Ended with exit code 0 [2021-10-13 00:16:07,163 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-13 00:16:07,163 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:07,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:07,163 INFO L229 MonitoredProcess]: Starting monitored process 171 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:07,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (171)] Waiting until timeout for monitored process [2021-10-13 00:16:07,164 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 [2021-10-13 00:16:07,172 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:16:07,172 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-13 00:16:07,172 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:16:07,172 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:16:07,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:16:07,172 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:16:07,175 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:16:07,175 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:16:07,208 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:16:07,235 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (171)] Ended with exit code 0 [2021-10-13 00:16:07,235 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:07,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:07,236 INFO L229 MonitoredProcess]: Starting monitored process 172 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:07,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (172)] Waiting until timeout for monitored process [2021-10-13 00:16:07,237 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 [2021-10-13 00:16:07,245 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:16:07,245 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-13 00:16:07,245 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:16:07,245 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:16:07,245 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:16:07,245 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:16:07,249 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:16:07,249 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:16:07,258 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:16:07,277 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (172)] Ended with exit code 0 [2021-10-13 00:16:07,277 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-13 00:16:07,277 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:07,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:07,278 INFO L229 MonitoredProcess]: Starting monitored process 173 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:07,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (173)] Waiting until timeout for monitored process [2021-10-13 00:16:07,279 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 [2021-10-13 00:16:07,286 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:16:07,286 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:16:07,286 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:16:07,286 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:16:07,286 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:16:07,287 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:16:07,289 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:16:07,289 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:16:07,297 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:16:07,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (173)] Ended with exit code 0 [2021-10-13 00:16:07,315 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:07,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:07,316 INFO L229 MonitoredProcess]: Starting monitored process 174 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:07,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (174)] Waiting until timeout for monitored process [2021-10-13 00:16:07,320 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 [2021-10-13 00:16:07,328 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:16:07,328 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:16:07,328 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:16:07,328 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:16:07,328 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:16:07,328 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-13 00:16:07,335 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-13 00:16:07,335 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:16:07,353 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:16:07,371 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (174)] Ended with exit code 0 [2021-10-13 00:16:07,371 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-13 00:16:07,371 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:07,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:07,372 INFO L229 MonitoredProcess]: Starting monitored process 175 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:07,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (175)] Waiting until timeout for monitored process [2021-10-13 00:16:07,373 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 [2021-10-13 00:16:07,380 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:16:07,380 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:16:07,380 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:16:07,380 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:16:07,381 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:16:07,381 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:16:07,383 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:16:07,383 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:16:07,387 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:16:07,405 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (175)] Ended with exit code 0 [2021-10-13 00:16:07,405 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:07,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:07,406 INFO L229 MonitoredProcess]: Starting monitored process 176 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:07,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (176)] Waiting until timeout for monitored process [2021-10-13 00:16:07,407 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 [2021-10-13 00:16:07,414 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:16:07,414 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-13 00:16:07,414 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:16:07,414 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:16:07,414 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:16:07,415 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-13 00:16:07,418 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-13 00:16:07,418 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:16:07,424 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:16:07,442 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (176)] Ended with exit code 0 [2021-10-13 00:16:07,442 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-13 00:16:07,442 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:07,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:07,443 INFO L229 MonitoredProcess]: Starting monitored process 177 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:07,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (177)] Waiting until timeout for monitored process [2021-10-13 00:16:07,444 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 [2021-10-13 00:16:07,451 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:16:07,451 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:16:07,451 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:16:07,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:16:07,452 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:16:07,452 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-13 00:16:07,455 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:16:07,455 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:16:07,467 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:16:07,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (177)] Forceful destruction successful, exit code 0 [2021-10-13 00:16:07,485 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:07,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:07,486 INFO L229 MonitoredProcess]: Starting monitored process 178 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:07,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (178)] Waiting until timeout for monitored process [2021-10-13 00:16:07,487 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 [2021-10-13 00:16:07,494 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-13 00:16:07,494 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-13 00:16:07,494 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:16:07,495 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:16:07,495 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:16:07,495 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-13 00:16:07,502 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:16:07,502 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:16:07,528 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:16:07,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (178)] Ended with exit code 0 [2021-10-13 00:16:07,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:16:07,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-13 00:16:07,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-10-13 00:16:07,554 INFO L87 Difference]: Start difference. First operand 93 states and 98 transitions. cyclomatic complexity: 6 Second operand has 12 states, 12 states have (on average 11.0) internal successors, (132), 12 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:16:08,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:16:08,096 INFO L93 Difference]: Finished difference Result 92 states and 94 transitions. [2021-10-13 00:16:08,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 00:16:08,097 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 92 states and 94 transitions. [2021-10-13 00:16:08,097 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:16:08,097 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 92 states to 0 states and 0 transitions. [2021-10-13 00:16:08,097 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-13 00:16:08,097 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-13 00:16:08,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-13 00:16:08,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:16:08,098 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:16:08,098 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:16:08,098 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:16:08,098 INFO L425 BuchiCegarLoop]: ======== Iteration 31============ [2021-10-13 00:16:08,098 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-13 00:16:08,098 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:16:08,098 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-13 00:16:08,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:16:08 BoogieIcfgContainer [2021-10-13 00:16:08,102 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:16:08,103 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:16:08,103 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:16:08,103 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:16:08,103 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:15:13" (3/4) ... [2021-10-13 00:16:08,105 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:16:08,106 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:16:08,107 INFO L168 Benchmark]: Toolchain (without parser) took 55592.38 ms. Allocated memory was 130.0 MB in the beginning and 474.0 MB in the end (delta: 343.9 MB). Free memory was 94.7 MB in the beginning and 153.2 MB in the end (delta: -58.5 MB). Peak memory consumption was 285.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:16:08,107 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 90.2 MB. Free memory was 63.4 MB in the beginning and 63.4 MB in the end (delta: 29.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:16:08,108 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.70 ms. Allocated memory is still 130.0 MB. Free memory was 94.7 MB in the beginning and 103.7 MB in the end (delta: -9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:16:08,108 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.05 ms. Allocated memory is still 130.0 MB. Free memory was 103.7 MB in the beginning and 102.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:16:08,108 INFO L168 Benchmark]: Boogie Preprocessor took 25.47 ms. Allocated memory is still 130.0 MB. Free memory was 102.0 MB in the beginning and 100.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:16:08,108 INFO L168 Benchmark]: RCFGBuilder took 407.29 ms. Allocated memory is still 130.0 MB. Free memory was 100.5 MB in the beginning and 88.4 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:16:08,109 INFO L168 Benchmark]: BuchiAutomizer took 54815.74 ms. Allocated memory was 130.0 MB in the beginning and 474.0 MB in the end (delta: 343.9 MB). Free memory was 87.9 MB in the beginning and 153.2 MB in the end (delta: -65.3 MB). Peak memory consumption was 279.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:16:08,109 INFO L168 Benchmark]: Witness Printer took 3.02 ms. Allocated memory is still 474.0 MB. Free memory is still 153.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:16:08,110 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 90.2 MB. Free memory was 63.4 MB in the beginning and 63.4 MB in the end (delta: 29.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 297.70 ms. Allocated memory is still 130.0 MB. Free memory was 94.7 MB in the beginning and 103.7 MB in the end (delta: -9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.05 ms. Allocated memory is still 130.0 MB. Free memory was 103.7 MB in the beginning and 102.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.47 ms. Allocated memory is still 130.0 MB. Free memory was 102.0 MB in the beginning and 100.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 407.29 ms. Allocated memory is still 130.0 MB. Free memory was 100.5 MB in the beginning and 88.4 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 54815.74 ms. Allocated memory was 130.0 MB in the beginning and 474.0 MB in the end (delta: 343.9 MB). Free memory was 87.9 MB in the beginning and 153.2 MB in the end (delta: -65.3 MB). Peak memory consumption was 279.6 MB. Max. memory is 16.1 GB. * Witness Printer took 3.02 ms. Allocated memory is still 474.0 MB. Free memory is still 153.2 MB. There was no memory consumed. 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 30 terminating modules (30 trivial, 0 deterministic, 0 nondeterministic). 30 modules have a trivial ranking function, the largest among these consists of 17 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 54.7s and 31 iterations. TraceHistogramMax:7. Analysis of lassos took 34.3s. Construction of modules took 12.3s. Büchi inclusion checks took 6.3s. Highest rank in rank-based complementation 0. Minimization of det autom 30. Minimization of nondet autom 0. Automata minimization 792.1ms AutomataMinimizationTime, 29 MinimizatonAttempts, 13356 StatesRemovedByMinimization, 27 NontrivialMinimizations. Non-live state removal took 0.4s Buchi closure took 0.0s. Biggest automaton had 3304 states and ocurred in iteration 13. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1435 SDtfs, 5364 SDslu, 2979 SDs, 0 SdLazy, 10451 SolverSat, 1005 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12322.0ms Time LassoAnalysisResults: nont0 unkn0 SFLI17 SFLT0 conc4 concLT0 SILN0 SILU2 SILI7 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital54 mio100 ax100 hnf100 lsp73 ukn100 mio100 lsp100 div490 bol100 ite100 ukn100 eq145 hnf45 smp76 dnf100 smp100 tf102 neg99 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 3 Time: 32ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 6.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-13 00:16:08,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (158)] Forceful destruction successful, exit code 0 [2021-10-13 00:16:08,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (136)] Ended with exit code 0 [2021-10-13 00:16:08,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (114)] Forceful destruction successful, exit code 0 [2021-10-13 00:16:08,741 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Ended with exit code 0 [2021-10-13 00:16:08,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Forceful destruction successful, exit code 0 [2021-10-13 00:16:09,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Forceful destruction successful, exit code 0 [2021-10-13 00:16:09,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Ended with exit code 0 [2021-10-13 00:16:09,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Forceful destruction successful, exit code 0 [2021-10-13 00:16:09,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Forceful destruction successful, exit code 0 [2021-10-13 00:16:09,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Forceful destruction successful, exit code 0 [2021-10-13 00:16:10,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Ended with exit code 0 [2021-10-13 00:16:10,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Forceful destruction successful, exit code 0 [2021-10-13 00:16:10,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Forceful destruction successful, exit code 0 [2021-10-13 00:16:10,742 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Ended with exit code 0 [2021-10-13 00:16:10,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Forceful destruction successful, exit code 0 [2021-10-13 00:16:11,143 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2021-10-13 00:16:11,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b0bb99e-5bff-4ee7-a470-fd19cead8404/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...